Area Forecast Matrices
Issued by NWS San Juan, PR

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162
FOCA52 TJSJ 170902
AFMSJU

Area Forecast Matrices
National Weather Service San Juan PR
502 AM AST Fri Oct 17 2025

PRZ001-172000-
San Juan and Vicinity-
Including the cities of Bayamon, Carolina, Catano, Guaynabo,
San Juan, Toa Alta, Toa Baja, and Trujillo Alto
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                80 87 91    71 75 82    80 87 90    73 76 82    79 86 89
Temp             82 86 87 82 79 77 76 75 82 86 87 82 79 78 77 76 82 85 86 82 80
Dewpt            75 76 76 76 75 75 74 73 75 77 77 77 76 76 75 75 76 77 76 76 75
RH               79 72 70 82 88 94 94 94 79 75 72 85 91 94 94 97 82 77 72 82 85
Wind dir          S SW NW SW  E  S  S  S  S SE  E  E SE SE SE SE SE  E  E  E  E
Wind spd          3  4  4  2  2  3  3  3  3  4  5  2  3  3  4  4  6 12 12 10  6
Clouds           SC SC OV B1 SC SC SC SC SC B1 B1 B2 B1 B1 B1 B1 SC SC SC SC SC
PoP 12hr                     90          30          60          50          20
QPF 12hr              0.99-1.34        0.14   0.16-0.77        0.08        0.05
Snow 12hr                    MM          MM          MM
Rain shwrs       IS IS  D SC SC SC IS SC IS SC SC NM SC SC SC SC IS IS IS IS IS
Tstms                  IS                      IS IS IS IS IS IS
Heat index       89 97 94 89 82          88 97 99 89 83 80       89 96 96 88 83
Max heat         93   104   100    90    94   106   104    91    94   106   102


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          77    88      77    88      76    87      76    87
Temp          78 83 88 80   78 83 88 80   77 82 87 79   77 82 87 79
Dewpt         75 76 77 75   74 75 75 74   74 75 75 74   74 75 76 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      GN    GN
Avg clouds    SC SC B1 B1   FW FW FW FW   CL FW SC SC   FW FW SC SC
PoP 12hr         30    50       0     5       5    10      10    30
Rain shwrs    IS IS SC SC   IS IS            IS IS IS   IS IS IS SC

$$
PRZ002-172000-
Northeast-
Including the cities of Ceiba, Canovanas, Fajardo, Humacao,
Loiza, Luquillo, Naguabo, and Rio Grande
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                73 86 90    65 74 82    73 85 89    67 75 82    72 84 88
Temp             81 85 86 80 78 76 75 74 80 84 85 81 78 77 76 75 80 83 84 80 79
Dewpt            75 76 76 76 74 74 73 73 75 76 76 76 75 75 74 74 76 76 75 75 74
RH               82 75 72 88 88 94 94 97 85 77 75 85 91 94 94 97 88 80 74 85 85
Wind dir         SW  S SW SW  W SW SW  S  S  S  S SE SE SE  E  E  E  E  E  E  E
Wind spd          5  8  9  6  3  2  2  3  4  5  8  5  4  4  5  6 10 13 11  9  8
Wind gust              20 18
Clouds           SC SC OV SC B1 SC B1 B1 SC B1 B1 B1 B2 B2 B2 B2 SC SC SC SC SC
PoP 12hr                     70          40          50          50          30
QPF 12hr              0.17-1.31   0.14-0.20   0.15-0.37        0.09        0.06
Snow 12hr                    MM          MM          MM
Rain shwrs       IS IS NM SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC IS IS SC
Tstms                  IS             IS          IS IS IS IS IS
Heat index       87 94 91 86 80          86 93 94 86 81          86 92 92 85 81
Max heat         94   103    98    91    94   104   103    92    93   102   100


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          76    86      76    86      75    85      75    84
Temp          77 81 86 79   77 82 86 79   76 81 85 78   76 80 84 77
Dewpt         74 76 76 74   74 75 75 73   73 74 75 73   73 75 75 74
PWind dir         E     E       E     E       E     E       E    SE
Wind char        GN    GN      GN    BZ      GN    GN      GN    BZ
Avg clouds    SC B1 B1 SC   SC SC FW FW   CL FW SC SC   SC SC SC B1
PoP 12hr         40    40      20     5      10    10      30    40
Rain shwrs    SC SC SC IS   IS IS IS         IS IS IS   IS IS SC SC

$$
PRZ003-172000-
Southeast-
Including the cities of Arroyo, Guayama, Maunabo, Patillas,
Salinas, and Yabucoa
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                74 85 88    68 74 82    75 85 88    69 75 82    74 84 89
Temp             81 84 85 80 77 76 75 74 80 84 85 80 78 77 76 75 80 83 84 80 78
Dewpt            75 75 75 75 74 74 73 73 75 75 75 75 74 74 74 74 75 75 73 74 73
RH               82 74 72 85 90 94 94 97 85 74 72 85 88 90 94 97 85 77 70 82 85
Wind dir         SW SW SW SW  W  W NW  E SE  S  S SE  E  E  E  E  E  E  E  E NE
Wind spd          3 10 10  8  4  2  2  1  2  5  6  4  3  4  5  5  9 12 10  9  6
Wind gust           20                                              25 21
Clouds           B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B1 SC SC SC SC SC
PoP 12hr                     60          40          50          50          20
QPF 12hr              0.23-0.35        0.21        0.19        0.08        0.05
Snow 12hr                    MM          MM          MM
Rain shwrs       NM SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC IS IS IS IS IS
Tstms            IS IS IS          IS IS IS IS       IS IS IS IS
Heat index       86 92 88 84             85 91 92 85 80          85 91 90 84 81
Max heat         93   101    96    90    92   102   100    91    93    99    98


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          76    85      75    86      75    84      75    84
Temp          77 81 85 78   76 81 86 78   76 80 84 78   76 80 84 77
Dewpt         74 74 74 73   73 73 74 73   73 73 74 73   73 74 74 73
PWind dir        NE     E       E     E       E     E       E     E
Wind char        LT    GN      GN    GN      GN    GN      GN    BZ
Avg clouds    SC SC SC FW   SC SC FW FW   FW FW FW SC   FW SC B1 B1
PoP 12hr         30    30      10     5       5    10      30    40
Rain shwrs    IS IS SC IS   IS IS IS IS   IS IS IS IS   IS IS SC SC

$$
PRZ004-172000-
Eastern Interior-
Including the cities of Aguas Buenas, Caguas, Cayey, Cidra,
Comerio, Gurabo, Juncos, Las Piedras, and San Lorenzo
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                75 84 91    68 71 76    74 84 90    68 72 76    73 83 89
Temp             79 83 84 78 75 74 72 71 78 83 84 78 76 74 73 72 78 82 83 78 76
Dewpt            74 75 74 75 73 72 71 71 74 75 75 75 73 73 72 72 74 75 74 74 72
RH               85 77 72 91 94 93 97100 88 77 74 91 90 97 97100 88 79 74 88 87
Wind dir          S SW SW SW SW SW SW  S  S  S  S SE SE  E  E  E  E  E  E  E  E
Wind spd          3  8  9  6  2  2  2  2  2  5  6  3  2  2  3  3  6 11 10  8  3
Clouds           B1 SC B2 SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC
PoP 12hr                     70          40          50          50          20
QPF 12hr              0.26-1.22   0.15-0.21   0.16-0.47        0.08        0.05
Snow 12hr                    MM          MM          MM
Rain shwrs       SC SC NM SC SC SC SC SC SC SC SC SC SC SC SC SC IS IS IS IS IS
Tstms            IS    IS             IS IS       IS IS IS IS IS
Heat index       82 90 87 80             81 90 91 81             81 88 88 80
Max heat         94   103    98    84    93   103   101    84    93   101    98


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          73    84      73    85      72    83      72    83
Temp          74 79 84 76   74 79 85 76   73 78 83 76   73 78 83 75
Dewpt         72 74 74 73   72 73 73 72   71 73 73 72   71 73 74 72
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      GN    GN
Avg clouds    SC SC SC SC   FW FW FW FW   FW FW FW SC   FW SC SC B1
PoP 12hr         30    30       5     5       5    10      20    30
Rain shwrs    IS IS SC IS   IS IS IS         IS IS IS   IS IS SC SC

$$
PRZ005-172000-
North Central-
Including the cities of Arecibo, Barceloneta, Dorado, Florida,
Manati, Vega Alta, and Vega Baja
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                83 88 91    72 74 82    83 87 91    73 75 82    82 87 90
Temp             82 87 88 81 78 76 75 74 81 86 87 81 78 77 76 75 81 86 87 81 79
Dewpt            75 77 77 76 75 75 73 72 76 77 78 76 76 75 74 73 76 78 77 76 75
RH               79 72 70 85 91 97 94 93 85 75 75 85 94 94 94 94 85 77 72 85 88
Wind dir          S  W NW  S SE  S  S  S  S NE NE  E SE SE SE SE SE  E  E  E  E
Wind spd          3  4  6  5  4  4  4  3  2  3  5  3  2  3  4  4  5  9 12 12  9
Wind gust              19 18                                              24
Clouds           B1 SC OV B1 B1 B1 SC SC SC SC B2 OV B1 B1 B1 B1 SC SC SC SC SC
PoP 12hr                     90          40          70          40          30
QPF 12hr              0.43-1.37        0.14   0.72-1.18        0.06   0.05-1.27
Snow 12hr                    MM          MM          MM
Rain shwrs       SC IS  D SC SC SC IS IS IS SC NM NM SC SC SC SC IS IS SC SC IS
Tstms            IS    IS IS                   IS IS                   IS IS
Heat index       89 98 96 88             88 98100 88             88 98 98 87 81
Max heat         93   108   104    90    93   111   108    91    94   109   105


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          75    89      76    89      75    88      75    88
Temp          76 83 89 80   77 83 89 79   76 82 88 79   76 82 88 78
Dewpt         74 76 77 75   74 75 75 74   73 75 76 74   73 75 77 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    SC SC SC SC   CL CL FW SC   CL FW FW SC   FW FW SC B1
PoP 12hr         20    40       0    30       0    30      10    30
Rain shwrs    IS IS IS SC         IS IS         IS SC      IS SC SC

$$
PRZ006-172000-
Central Interior-
Including the cities of Aibonito, Barranquitas, Ciales, Coamo,
Corozal, Jayuya, Morovis, Naranjito, Orocovis, and Villalba
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                73 81 88    63 71 75    73 81 89    63 72 75    72 81 89
Temp             77 80 81 76 74 73 72 71 77 80 81 77 75 73 72 72 77 80 81 77 75
Dewpt            72 73 73 73 71 71 70 69 72 73 74 73 72 71 71 70 73 73 72 72 71
RH               85 79 77 90 90 93 93 93 85 79 79 87 90 93 97 93 87 79 74 85 87
Wind dir          S SW SW  S  S SW SW  S  S  S  S SE SE  E  E  E  E  E  E  E  E
Wind spd          2  6  8  5  2  2  2  2  2  3  3  2  1  2  3  3  4  9  8  6  4
Wind gust           19 20                                           23 19
Clouds           B1 SC OV B1 B1 B1 SC SC SC B1 B1 B2 B1 B1 B1 B1 SC SC SC SC SC
PoP 12hr                     70          40          60          30          30
QPF 12hr              0.26-1.37   0.13-0.22   0.19-1.13        0.06   0.04-1.27
Snow 12hr                    MM          MM          MM
Rain shwrs       SC IS NM SC SC SC IS SC SC SC SC NM SC SC SC SC IS IS SC SC IS
Tstms            IS    IS                IS IS IS IS                   IS IS
Heat index          84 81                   84 86                   84 84
Max heat         91   101    96          90   103   100          91   101    98


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          72    82      72    83      72    81      72    81
Temp          73 78 82 75   73 78 83 75   73 77 81 75   73 77 81 74
Dewpt         70 72 73 71   71 71 71 70   70 71 72 70   70 71 72 71
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    SC SC SC SC   CL CL FW SC   FW FW FW SC   FW FW SC B1
PoP 12hr         20    20       0    10       0    10      10    40
Rain shwrs    IS IS IS IS         IS IS         IS IS      IS SC SC

$$
PRZ007-172000-
Ponce and Vicinity-
Including the cities of Guayanilla, Juana Diaz, Yauco, Penuelas,
Ponce, and Santa Isabel
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                73 84 91    63 75 82    73 85 91    65 75 82    72 85 91
Temp             80 84 84 80 78 76 76 75 80 84 85 80 78 77 76 75 81 84 85 80 78
Dewpt            73 73 73 73 73 72 72 71 73 73 74 74 73 72 72 71 73 73 72 72 71
RH               79 70 70 79 85 87 87 87 79 70 70 82 85 85 87 87 77 70 65 77 79
Wind dir          S  S SW  S  N  N  N NE  E SE  S SE  E NE  E  E  E  E SE  E NE
Wind spd          2  9 10  5  1  1  2  2  2  5  6  4  3  3  4  4  6 11  9  8  5
Wind gust           19 20                                           24 23 20
Clouds           B2 SC B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC
PoP 12hr                     60          40          50          20          30
QPF 12hr              0.22-0.65   0.17-0.23   0.19-0.74        0.04   0.04-1.27
Snow 12hr                    MM          MM          MM
Rain shwrs       NM SC SC SC SC SC SC SC SC SC SC SC IS IS IS IS IS IS SC SC IS
Tstms            IS    IS          IS IS IS IS    IS                   IS IS
Heat index       85 90 86 84             85 91 92 85 81          85 90 90 84 80
Max heat         94    99    94    90    93   101   100    90    92   101   100


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          75    87      76    87      75    86      75    85
Temp          76 82 87 79   76 82 87 79   76 81 86 78   76 80 85 78
Dewpt         70 71 72 71   71 71 71 71   70 70 72 71   71 72 73 72
PWind dir        NE     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    SC SC SC SC   CL CL FW SC   SC FW FW SC   FW FW SC B1
PoP 12hr         10    30       0    10       5    20      10    40
Rain shwrs    IS IS IS IS         IS IS   IS IS IS IS      IS SC SC

$$
PRZ008-172000-
Northwest-
Including the cities of Aguadilla, Camuy, Hatillo, Isabela,
and Quebradillas
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                83 86 91    70 73 82    83 85 91    70 73 82    82 84 91
Temp             81 85 86 80 77 75 74 73 80 84 85 79 77 75 74 73 80 83 84 79 77
Dewpt            74 76 76 75 74 74 72 71 74 76 76 75 74 74 73 72 74 76 76 75 74
RH               79 75 72 85 90 97 93 93 82 77 75 88 90 97 97 97 82 80 77 88 90
Wind dir          S SW SW SW  S  S  S  S SE  N  N NE  E  E  E SE  E  E NE  E  E
Wind spd          6 10 13 11  6  4  4  3  4  2  5  4  4  4  5  4  5  6 10 11 11
Wind gust                                                              21 23
Clouds           B1 SC B2 B1 B2 B1 SC B1 SC SC B2 B2 B1 B1 B1 B1 SC SC B1 B1 SC
PoP 12hr                     50          50          70          30          40
QPF 12hr              0.20-0.45        0.15   0.65-1.18        0.05   0.07-1.27
Snow 12hr                    MM          MM          MM
Rain shwrs       SC IS SC SC SC SC IS SC IS SC SC NM SC SC SC SC IS IS SC SC IS
Tstms            IS    IS    IS       IS       IS IS                   IS IS
Heat index       85 94 91 83             83 93 94 83             83 92 93 83
Max heat         94   105   100    90    93   107   104    90    93   106   104


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          74    87      74    88      74    86      74    85
Temp          75 81 87 78   75 82 88 78   75 81 86 77   75 80 85 77
Dewpt         72 74 76 74   73 73 75 73   72 73 75 73   71 73 75 73
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    SC SC SC B1   CL CL SC SC   FW FW SC SC   FW FW SC B1
PoP 12hr         10    60       0    50       0    50      10    60
Rain shwrs    IS IS IS NM         SC SC         SC SC      IS NM NM
Tstms               IS IS

$$
PRZ009-172000-
Western Interior-
Including the cities of Adjuntas, Lares, Las Marias, Maricao,
Sabana Grande, San Sebastian, and Utuado
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                73 82 90    67 72 76    73 82 91    67 72 76    72 82 91
Temp             78 81 82 77 75 74 73 72 78 81 82 78 75 74 73 72 78 81 82 77 75
Dewpt            73 74 73 72 72 72 71 69 72 73 74 73 72 72 71 69 72 73 73 73 72
RH               85 79 74 85 90 93 93 90 82 77 77 85 90 93 93 90 82 77 74 87 90
Wind dir          S  S SW  S  S  S  S SE SE  S SE  E  E  E  E  E  E  E  E  E  E
Wind spd          3  8 10  6  3  3  3  3  3  4  3  2  3  2  3  3  4  5  4  4  5
Wind gust              20                                           23 20
Clouds           B2 SC B2 SC B1 SC SC B1 SC B1 B2 B2 SC SC SC SC SC SC B2 B2 SC
PoP 12hr                     50          30          70          30          60
QPF 12hr              0.21-1.22   0.14-0.21   0.26-1.19        0.04   0.07-1.27
Snow 12hr                    MM          MM          MM
Rain shwrs       SC IS SC SC SC SC IS SC SC SC SC NM SC SC SC SC IS IS NM NM IS
Tstms            IS    IS             IS       IS IS                   IS IS
Heat index       80 86 83                   86 88                   86 87
Max heat         90   103    97          92   104   101          92   105   102


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          72    84      72    85      72    83      72    82
Temp          73 79 84 76   73 79 85 76   73 78 83 75   73 78 82 75
Dewpt         70 71 73 71   70 71 71 70   70 70 72 70   69 71 73 71
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC SC B1   CL CL FW SC   FW FW FW SC   FW FW SC B1
PoP 12hr         10    60       0    40       5    50      10    50
Rain shwrs    IS IS IS NM         SC SC   IS IS SC SC      IS IS IS
Tstms               IS IS

$$
PRZ010-172000-
Mayaguez and Vicinity-
Including the cities of Aguada, Anasco, Hormigueros, Mayaguez,
Moca, Rincon, and San German
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                73 86 91    70 75 82    74 87 92    70 75 82    74 87 91
Temp             82 85 86 81 78 77 76 75 82 86 87 81 79 77 76 75 82 86 87 81 78
Dewpt            76 78 77 76 75 74 74 72 75 77 77 76 76 75 74 72 75 76 77 76 76
RH               82 80 75 85 91 90 94 90 79 75 72 85 91 94 94 90 79 72 72 85 94
Wind dir          S SW SW SW  S SE SE SE SE  S  S  E  E  E  E  E  E  E NE  E  E
Wind spd          6 10 11  9  5  4  4  4  5  5  6  4  6  5  5  5  5  5  6  8  6
Wind gust                                               16    16 19 20 18 20 17
Clouds           B2 B1 B1 SC B1 SC SC B1 B1 B1 B2 B2 SC SC SC SC SC SC B1 B1 SC
PoP 12hr                     60          40          70          30          50
QPF 12hr                   0.23   0.15-0.21   0.17-1.18        0.05   0.06-1.27
Snow 12hr                    MM          MM          MM
Rain shwrs       NM SC SC SC SC IS IS SC SC SC SC NM SC SC SC SC IS IS SC SC IS
Tstms            IS IS IS             IS IS    IS IS                   IS IS
Heat index       88 97 94 87 80          88 97 99 88 80          88 96 98 87 80
Max heat         95   107   101    91    94   110   106    91    94   108   106


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          75    89      75    90      75    88      75    87
Temp          75 83 89 79   76 83 90 79   76 82 88 79   76 82 87 78
Dewpt         73 74 77 75   73 74 76 74   72 74 75 74   72 74 76 74
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    LT      LT    GN      LT    GN      GN    GN
Avg clouds    SC SC SC B1   FW FW FW SC   FW FW SC SC   FW FW SC B1
PoP 12hr         10    60       0    40       5    50      10    60
Rain shwrs    IS IS IS NM         SC SC   IS IS SC SC      IS IS IS
Tstms               IS IS

$$
PRZ011-172000-
Southwest-
Including the cities of Cabo Rojo, Guanica, and Lajas
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                83 88 91    73 75 82    83 89 92    73 76 82    83 89 91
Temp             83 87 88 82 79 77 76 75 83 88 89 82 80 78 77 76 83 88 89 82 78
Dewpt            75 75 76 75 75 74 74 73 75 76 76 75 75 74 74 73 75 75 75 74 74
RH               77 68 68 79 88 90 94 94 77 68 66 79 85 88 90 90 77 66 64 77 88
Wind dir          S  S  S  S SE  E  E  E  E SE SE SE  E  E  E  E  E  E SE  E  E
Wind spd          5 10 12  8  4  3  4  4  5  9 11  8  6  4  6  8  9 14 13 10 10
Wind gust              23                                        19 28 29 23 24
Clouds           B2 B1 B2 B1 B1 B1 SC B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC
PoP 12hr                     60          40          50          20          30
QPF 12hr                   0.26   0.16-0.22   0.18-0.72        0.04   0.06-1.27
Snow 12hr                    MM          MM          MM
Rain shwrs       NM SC SC SC SC SC SC SC SC SC SC SC IS IS IS IS IS IS SC SC IS
Tstms            IS IS IS             IS IS IS    IS                   IS IS
Heat index       89 97 94 88 82          90 98 99 89 83          90 97 98 87 80
Max heat         92   103    97    90    93   107   103    91    92   106   103


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          74    91      76    91      75    90      75    89
Temp          75 84 91 80   77 84 91 80   76 83 90 80   76 83 89 79
Dewpt         71 72 75 74   72 72 73 73   71 71 75 73   72 74 75 75
PWind dir        NE     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      GN    GN      GN    BZ
Avg clouds    SC SC SC SC   CL CL FW SC   SC FW FW SC   FW FW SC B1
PoP 12hr         10    40       0    20      10    20      10    50
Rain shwrs    IS IS SC SC         IS IS   IS IS IS IS   IS IS SC SC

$$
PRZ012-172000-
Culebra-
Including the city of Culebra
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                83 87 91    76 79 82    83 87 91          79    83 86 90
Temp             84 86 87 83 81 80 79 79 84 86 87 83 82 81 80 79 83 85 86 83 81
Dewpt            78 79 78 78 77 77 77 77 78 78 77 77 77 78 77 77 78 78 77 77 77
RH               82 80 75 85 88 91 94 94 82 77 72 82 85 91 91 94 85 80 75 82 88
Wind dir         SW SW  S SW SW SW  S  S  S  S  S SE SE  E  E  E  E  E  E  E  E
Wind spd         14 16 18 16 13  8  8  9  9 10 10  8  6  9 11 11 16 16 13 13 16
Clouds           SC SC B2 B1 B1 B1 SC B1 B1 SC SC SC B2 B2 B2 B2 SC SC SC SC SC
PoP 12hr                     50          50          50          50          30
QPF 12hr              0.16-0.21        0.19        0.16        0.09        0.05
Snow 12hr                    MM          MM          MM
Rain shwrs       IS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC IS IS IS IS SC
Tstms               IS IS    IS       IS IS          IS IS IS IS
Heat index       94 99 95 92 88 86 82 81 93 99 98 93 90 88 84 82 93 97 96 91 89
Max heat         97   104    99    92    96   104   102    92    96   102   100


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          80    87      79    88      79    87      78    86
Temp          80 84 87 82   80 84 88 82   80 84 87 81   79 83 86 80
Dewpt         77 78 78 77   77 77 76 76   76 76 76 76   76 77 77 77
PWind dir         E     E       E     E       E     E       E     E
Wind char        BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    SC B1 SC FW   SC SC SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr         40    40      20    10      20    20      20    40
Rain shwrs    SC SC SC IS   IS IS IS IS   IS IS IS IS   IS IS IS SC

$$
PRZ013-172000-
Vieques-
Including the city of Vieques
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      86    75 77 82    83 86 89    75 78 82    82 85 88
Temp             82 85 86 82 80 79 78 77 82 85 86 82 80 79 79 78 82 85 85 82 80
Dewpt            77 77 76 76 76 76 76 76 77 76 76 76 76 76 76 76 77 76 75 76 75
RH               85 77 72 82 88 91 94 97 85 75 72 82 88 91 91 94 85 75 72 82 85
Wind dir         SW SW SW SW SW SW  S  S  S  S  S SE SE  E  E  E  E  E  E  E  E
Wind spd         13 14 17 16 12  8  6  6  8  9  9  8  6  9 11 11 14 16 13 12 16
Clouds           SC B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC B2 B2 B2 B2 SC SC SC SC SC
PoP 12hr                     50          50          50          50          30
QPF 12hr              0.17-0.24        0.20        0.16        0.09        0.06
Snow 12hr                    MM          MM          MM
Rain shwrs       IS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC IS IS SC
Tstms               IS       IS       IS IS          IS IS IS IS
Heat index       91 96 92 89 84 80       90 95 96 90 86 83 80    90 94 93 89 85
Max heat         93   100    94    91    93   101    99    91    92    98    96


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          78    87      78    88      77    87      77    86
Temp          79 83 87 80   79 83 88 80   78 83 87 80   77 82 86 79
Dewpt         76 77 76 76   75 76 75 75   75 75 75 75   75 76 75 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        BZ    BZ      BZ    BZ      BZ    BZ      BZ    WY
Avg clouds    SC B1 SC FW   SC SC FW FW   FW FW SC SC   SC SC SC B1
PoP 12hr         40    40      20    10      20    20      30    40
Rain shwrs    SC SC SC IS   IS IS IS         IS IS IS   IS SC SC SC

$$
VIZ001-172000-
St.Thomas...St. John...and Adjacent Islands-
Including the cities of Anna`s Retreat, Charlotte Amalie,
Charlotte Amalie East, Charlotte Amalie West, and Cruz Bay
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                83 85 91    71 78 82    83 85 91    72 78 82    82 84 90
Temp             82 84 85 81 80 79 78 78 82 84 85 82 80 79 79 78 81 83 84 81 80
Dewpt            77 78 77 77 76 77 76 76 77 77 76 77 76 77 76 76 76 77 75 76 76
RH               85 82 77 88 88 94 94 94 85 80 75 85 88 94 91 94 85 82 74 85 88
Wind dir         SW SW SW SW SW SW  S  S  S  S  S SE  E  E  E  E  E  E  E  E  E
Wind spd         14 14 17 16 13 10  9  9  9 10  8  4  6 10 11 13 18 17 14 13 17
Clouds           OV B2 B2 B1 B2 B1 SC B1 B2 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC
PoP 12hr                     70          60          50          50          30
QPF 12hr                   0.33        0.22        0.20        0.08        0.04
Snow 12hr                    MM          MM          MM
Rain shwrs       NM NM SC SC NM SC SC SC SC SC SC SC SC SC SC SC IS IS IS IS SC
Tstms            IS IS IS    IS       IS IS          IS IS IS IS
Heat index       89 95 90 89 84 82 80    89 94 94 89 85 83 81 81 88 92 91 87 84
Max heat         99   105   100    92    98   105   103    92    98   103   101


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          78    85      78    86      78    85      77    85
Temp          78 82 85 80   79 83 86 80   79 82 85 80   78 81 85 79
Dewpt         77 77 77 76   76 76 75 75   75 75 75 75   76 76 76 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        BZ    BZ      BZ    BZ      BZ    BZ      BZ    WY
Avg clouds    SC B1 SC FW   SC SC SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr         40    40      10    20      20    20      20    30
Rain shwrs    SC SC SC IS   IS IS IS IS   IS IS IS IS   IS IS IS SC

$$
VIZ002-172000-
St Croix-
Including the cities of Christiansted, Frederiksted,
Frederiksted Southeast, and Grove Place
502 AM AST Fri Oct 17 2025

Date             Fri 10/17/25            Sat 10/18/25            Sun 10/19/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                83 86 92    76 78 82    83 86 92    76 79 82    82 85 91
Temp             82 85 86 82 80 79 79 78 83 85 86 83 81 80 79 79 82 84 85 82 80
Dewpt            77 78 78 77 77 77 76 76 77 77 77 77 76 76 76 76 76 76 76 76 76
RH               85 80 77 85 91 94 91 94 82 77 75 82 85 88 91 91 82 77 75 82 88
Wind dir          S  S SW  S  S  S  S  S  S  S SE SE  E  E  E  E  E  E  E  E  E
Wind spd         10 16 16 12 10  8  5  6  9 10 10  6  8 10 11 12 16 16 13 13 14
Clouds           OV B2 B1 B1 B2 B1 B1 B1 B2 B1 B1 SC SC SC SC SC SC SC SC SC B1
PoP 12hr                     70          50          50          20          40
QPF 12hr                   0.32        0.23        0.20        0.04        0.06
Snow 12hr                    MM          MM          MM
Rain shwrs       NM NM SC SC SC SC SC SC SC SC SC SC IS IS IS IS IS IS IS IS SC
Tstms            IS IS       IS    IS IS IS IS
Heat index       90 97 93 90 86 83 80    91 97 97 91 87 85 82 80 90 94 94 89 86
Max heat         96   106   101    91    98   108   105    91    96   104   102


Date          Mon 10/20/25  Tue 10/21/25  Wed 10/22/25  Thu 10/23/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          78    87      78    87      78    86      77    86
Temp          79 83 87 81   79 84 87 81   79 83 86 79   78 82 86 79
Dewpt         77 77 77 76   76 76 76 75   75 76 76 75   76 76 76 75
PWind dir         E     E       E     E       E     E       E    SE
Wind char        BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    B1 B1 SC FW   SC SC SC FW   SC SC SC FW   SC SC SC B1
PoP 12hr         40    30      20    20      20    20      20    50
Rain shwrs    SC SC SC IS   IS IS IS IS   IS IS IS IS   IS IS SC SC

$$