Point Forecast Matrices
Issued by NWS San Juan, PR

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Point Forecast Matrices
National Weather Service San Juan PR
503 AM AST Sun Apr 6 2025

PRZ001-062000-
Luis Munoz Marin International Airport-San Juan
18.43N  66.00W Elev. 9 ft
503 AM AST Sun Apr 6 2025

Date             Sun 04/06/25            Mon 04/07/25            Tue 04/08/25
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                      87          73          87          73          88
Temp             81 86 87 83 78 76 74 74 81 85 87 83 78 76 74 74 81 86 88 84 79
Dewpt            68 68 68 68 68 68 68 68 68 68 69 70 70 70 70 69 69 69 70 70 70
RH               65 55 53 61 71 76 82 82 65 57 55 65 76 82 87 84 67 57 55 63 74
Wind dir          E  E  E  E  E  E  E SE  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd         12 16 16 12 11 10  9 10 10 13 14 13 10 11 10 10  9 11 16 14 11
Clouds           SC SC SC SC SC SC FW SC FW SC SC B2 B1 B1 B2 B2 B1 B1 SC SC SC
PoP 12hr                     20          30          50          50          40
QPF 12hr                   0.02        0.06        0.41        0.21        0.08
Rain shwrs        S  S  S  S  S  S     C  S  S  S  C  C  C  C  C  C  C  S  S  S
Heat index       84 89 90 86             83 89 91 87             84 90 93 88 82
Max heat         84    90    90          83    91    91          84    93    93


Date          Wed 04/09/25  Thu 04/10/25  Fri 04/11/25  Sat 04/12/25
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    88      74    88
Temp          75 81 87 79   75 82 88 79   75 82 88 79   75 82 88 80
Dewpt         70 70 70 70   70 70 71 71   72 72 73 72   72 72 72 72
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    GN      GN    GN      LT    GN      GN    GN
Avg clouds    SC SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr         30    30      30    30      10    30      10    30
Rain shwrs     S  C  C  C    S  C  C  S    S  S  C  C    S  S  C  C

$$
PRZ002-062000-
Roosevelt Roads Naval Airstation-Ceiba PR
18.25N  65.63W Elev. 39 ft
503 AM AST Sun Apr 6 2025

Date             Sun 04/06/25            Mon 04/07/25            Tue 04/08/25
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                      85          74          84          74          85
Temp             80 84 85 82 78 76 75 75 80 83 84 81 78 76 75 75 80 84 85 82 78
Dewpt            69 69 69 69 68 68 68 68 69 70 71 71 70 70 70 69 70 70 71 70 70
RH               69 61 59 65 71 76 79 79 69 65 65 72 76 82 84 82 72 63 63 67 76
Wind dir          E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd         13 14 13 11 11 11 12 12 12 13 12 12 11 12 13 11 10 12 13 12 11
Clouds           SC SC SC FW SC SC FW SC SC SC SC B2 B2 B2 B2 B2 B1 B1 SC SC B1
PoP 12hr                     20          30          50          60          40
QPF 12hr                   0.03        0.05        0.46        0.25        0.11
Rain shwrs        S  S  S     S  S     C  S  S  C  C  C  C  L  L  C  C  C  C  C
Heat index       83 87 89 85             82 87 89 85             83 88 90 86
Max heat         83    89    89          82    89    89          83    90    90


Date          Wed 04/09/25  Thu 04/10/25  Fri 04/11/25  Sat 04/12/25
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    85      74    86      75    85      76    85
Temp          75 80 85 78   75 81 86 79   76 81 85 79   77 81 85 79
Dewpt         71 71 71 71   70 71 72 72   72 73 73 73   72 72 73 73
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 B1 B1 SC   SC SC B1 SC   SC SC B1 B1   B2 B2 B1 SC
PoP 12hr         40    40      40    40      30    50      50    50
Rain shwrs     C  C  C  C    S  C  C  C    S  C  C  C    C  C  C  S

$$
PRZ007-062000-
Mercedita Airport-Ponce PR
18.02N  66.56W Elev. 26 ft
503 AM AST Sun Apr 6 2025

Date             Sun 04/06/25            Mon 04/07/25            Tue 04/08/25
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                      89          70          88          71          88
Temp             81 87 89 84 77 74 71 71 80 86 88 83 77 74 72 72 81 86 88 84 78
Dewpt            63 62 65 64 64 65 64 63 63 60 66 68 68 67 67 66 66 65 68 69 69
RH               54 43 45 51 64 74 79 76 56 42 48 61 74 79 84 81 60 50 52 61 74
Wind dir          E  E SE  E  E NE NE NE  E SE SE SE  E  E  E  E  E SE SE SE  E
Wind spd          9 16 19 16  9  6  6  5  6 14 13 13  9  5  5  5  5 13 17 12  9
Wind gust           27 33 27                25                         27
Clouds           FW FW FW SC FW FW FW FW FW FW CL CL FW FW CL CL FW FW FW FW CL
PoP 12hr                     10           0           0           5           5
QPF 12hr                   0.01           0           0        0.01        0.01
Rain shwrs                 S                                      S  S
Heat index       82 87 91 85             81 86 90 86             83 88 92 87
Max heat         82    91    90          81    90    90          83    92    91


Date          Wed 04/09/25  Thu 04/10/25  Fri 04/11/25  Sat 04/12/25
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    87      72    88      72    88      73    87
Temp          73 80 87 77   73 81 88 78   73 81 88 78   74 81 87 78
Dewpt         67 66 68 69   68 66 69 69   67 68 70 70   69 68 69 70
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    CL FW SC SC   SC FW SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr         20    30       5    30      20    30      10    40
Rain shwrs        S  C  C    S  S  C  C    S  S  C  C    S  S  C  C

$$
PRZ008-062000-
Rafael Hernandez Airport-Aguadilla PR
18.50N  67.13W Elev. 237 ft
503 AM AST Sun Apr 6 2025

Date             Sun 04/06/25            Mon 04/07/25            Tue 04/08/25
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          70          83          69          83
Temp             78 82 83 79 75 73 71 71 77 82 83 79 74 72 70 70 77 81 83 79 75
Dewpt            66 67 68 68 68 69 68 67 65 67 69 70 70 70 69 68 67 68 70 70 70
RH               67 61 61 69 79 87 90 87 67 61 63 74 87 93 97 93 71 65 65 74 84
Wind dir          E  E  E  E  E  E  E  E  E  E NE  E  E  E  E  E  E  E NE  E  E
Wind spd         18 19 20 17 17 16 14 11 10  9 13 14  9 10 11 11 11  8 11 14 13
Clouds           FW FW FW FW FW SC FW FW FW FW CL SC FW FW CL CL CL CL B2 B2 SC
PoP 12hr                      0          10          30           5          50
QPF 12hr                      0           0        0.06        0.01        0.63
Rain shwrs                       S                 C                    C  C  S
Tstms                                                                   S  S
Heat index          84 86 82                84 86 82                84 87 82
Max heat               86    86                86    86                87    87


Date          Wed 04/09/25  Thu 04/10/25  Fri 04/11/25  Sat 04/12/25
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          70    84      72    84      71    83      71    84
Temp          71 78 84 76   73 79 84 76   72 78 83 75   72 78 84 76
Dewpt         70 68 70 70   70 68 70 71   72 69 72 72   72 70 72 72
PWind dir         E     E       E    NE       E     E       E     E
Wind char        GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC SC SC B1   B2 B1 SC B1   B2 B1 SC B2   B2 B1 SC B1
PoP 12hr         20    50      50    50      50    50      50    50
Rain shwrs     S  S  C  C    C  C  C  C    C  C  C  C    C  C  C  C

$$
PRZ010-062000-
Eugenio Maria de Hosto Airport-Mayaguez PR
18.27N  67.15W Elev. 28 ft
503 AM AST Sun Apr 6 2025

Date             Sun 04/06/25            Mon 04/07/25            Tue 04/08/25
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                      88          67          88          69          88
Temp             80 86 88 82 75 71 68 68 79 86 88 83 76 73 70 70 80 86 88 83 76
Dewpt            69 70 72 72 70 68 66 65 67 69 71 72 71 70 68 67 69 71 73 73 72
RH               69 59 59 72 84 90 93 90 67 57 57 70 85 90 93 90 69 61 61 72 87
Wind dir          E  E  S  E NE  E  E  E  E SE SW NE  E  E  E  E  E SE NW  E  E
Wind spd         13  4  5  3  9  8  9  5  4  3 10  6  9  6  3  4  4  4  6  8  6
Clouds           FW FW SC SC SC FW FW FW FW FW SC B1 FW FW CL CL CL CL B2 B2 CL
PoP 12hr                     30          20          40           5          50
QPF 12hr                   0.27        0.01        0.16        0.01        0.63
Rain shwrs              S  C  S                 C  C                    C  C
Tstms                                              S                    S  S
Heat index       82 91 95 87                90 94 88             82 91 96 88
Max heat         82    95    94                94    94          82    96    95


Date          Wed 04/09/25  Thu 04/10/25  Fri 04/11/25  Sat 04/12/25
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          69    89      70    89      70    89      71    89
Temp          70 80 89 77   71 81 89 77   71 81 89 77   72 81 89 77
Dewpt         70 70 75 73   70 71 74 73   71 71 75 74   72 72 76 74
PWind dir         E     E       E     E       E    NE       E     E
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    CL FW SC B1   B1 SC SC B1   SC SC SC B2   SC SC SC B1
PoP 12hr          5    40      40    50      30    60      30    60
Rain shwrs        S  C  C    C  C  C  C    C  C  L  L    C  C  L  L

$$
VIZ001-062000-
CYRIL E. King Airport-St Thomas USVI
18.33N  64.97W Elev. 23 ft
503 AM AST Sun Apr 6 2025

Date             Sun 04/06/25            Mon 04/07/25            Tue 04/08/25
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                      85          76          86          76          86
Temp             81 84 85 82 79 78 77 77 82 85 86 83 80 78 77 77 82 85 86 83 80
Dewpt            68 69 69 69 68 69 69 69 70 70 71 70 70 70 70 69 69 70 70 70 70
RH               65 61 59 65 69 74 76 76 67 61 61 65 72 76 79 76 65 61 59 65 72
Wind dir          E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd         18 18 16 16 17 18 18 17 18 18 17 17 18 20 19 17 16 17 16 17 17
Clouds           FW SC SC FW FW FW FW FW SC SC B1 B2 B2 B2 B2 B2 FW FW SC SC B1
PoP 12hr                     30          20          50          50          40
QPF 12hr                   0.05        0.02        0.40        0.21        0.06
Rain shwrs           S  C                 S  C  C  C  C  C  C  C        S  S  C
Heat index       84 87 89 86 82          85 90 91 87 83          85 90 91 87 83
Max heat         84    89    88          85    91    91          85    91    90


Date          Wed 04/09/25  Thu 04/10/25  Fri 04/11/25  Sat 04/12/25
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      77    86      77    86      77    86
Temp          77 82 86 80   78 82 86 80   78 82 86 80   78 82 86 80
Dewpt         70 70 70 71   71 71 72 72   72 73 73 73   72 72 73 72
PWind dir         E     E       E     E       E     E       E     E
Wind char        BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    B1 B1 SC SC   SC SC SC SC   SC SC SC SC   FW FW SC SC
PoP 12hr         40    40      30    30      20    40      20    20
Rain shwrs     C  C  C  S    S  C  C  C    S  S  C  C       S  S  S

$$
VIZ002-062000-
Henry E. Rohlsen Airport-St Croix USVI
17.70N  64.80W Elev. 74 ft
503 AM AST Sun Apr 6 2025

Date             Sun 04/06/25            Mon 04/07/25            Tue 04/08/25
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                      87          74          87          74          87
Temp             81 86 87 83 79 77 75 75 81 86 87 83 79 77 75 75 81 86 87 83 79
Dewpt            70 70 69 68 68 68 68 68 69 70 70 70 71 71 70 70 70 71 71 71 71
RH               69 59 55 61 69 74 79 79 67 59 57 65 77 82 84 84 69 61 59 67 77
Wind dir          E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd         17 17 17 16 14 16 16 14 14 16 14 13 16 17 17 17 18 17 16 14 12
Clouds           FW FW FW FW FW FW FW FW SC SC SC SC SC SC B1 B1 SC SC B1 B1 SC
PoP 12hr                      0          10          20          40          40
QPF 12hr                   0.01        0.01        0.07        0.14        0.11
Rain shwrs                                S  S  S  S  S  S  C  C  S  S  C  C  C
Heat index       85 90 91 87             84 90 92 88             85 91 93 88
Max heat         85    91    90          84    92    92          85    93    92


Date          Wed 04/09/25  Thu 04/10/25  Fri 04/11/25  Sat 04/12/25
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    88      75    87
Temp          75 81 87 79   75 82 88 79   75 82 88 80   76 82 87 79
Dewpt         71 71 71 71   71 72 73 72   73 73 73 73   73 73 73 73
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    GN      GN    BZ      GN    BZ      BZ    BZ
Avg clouds    SC B1 SC SC   SC SC B2 B1   SC SC SC SC   SC SC SC SC
PoP 12hr         40    40      50    50      30    40      20    20
Rain shwrs     C  C  C  S    S  C  C  C    C  C  C  C    S  S  S  S

$$