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 Wed Jan 8 2025

PRZ001-082000-
Luis Munoz Marin International Airport-San Juan
18.43N  66.00W Elev. 9 ft
503 AM AST Wed Jan 8 2025

Date             Wed 01/08/25            Thu 01/09/25            Fri 01/10/25
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          85          74          83
Temp             78 83 85 80 77 76 75 74 78 83 85 80 77 76 75 74 77 82 83 78 76
Dewpt            73 74 74 73 72 72 72 71 71 71 72 71 72 71 72 71 71 70 70 68 68
RH               85 74 70 79 85 87 90 90 79 67 65 74 85 85 90 90 82 67 65 71 76
Wind dir         SE  E  E  E  E SE SE  N  S SE  N  N  N NW  N  N  N  N  N  N  N
Wind spd          6 10 10 11  8  6  5  4  4  4  6  4  2  2  3  4  3  6 11  9  8
Clouds           SC SC CL SC CL SC FW CL FW FW SC SC SC SC SC SC SC SC SC SC FW
PoP 12hr                     50          20          40          50          50
QPF 12hr                   0.30        0.04        0.22        0.20        0.25
Rain shwrs        C  C     C     S  S     S  S  C  C  C  C  C  C  C  C  C  C  S
Heat index          90 92 84                88 90 83                86 87
Max heat               93    90                91    89                87    85


Date          Sat 01/11/25  Sun 01/12/25  Mon 01/13/25  Tue 01/14/25
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    83      73    83      75    84      74    82
Temp          74 77 83 76   74 77 83 77   76 78 84 77   75 77 82 76
Dewpt         67 67 67 68   67 68 68 69   69 68 68 69   68 69 70 70
PWind dir        NE     E      SE     E      NE    NE      NE    NE
Wind char        GN    GN      LT    LT      LT    GN      GN    GN
Avg clouds    FW SC SC CL   CL FW FW FW   SC SC SC SC   SC SC SC SC
PoP 12hr         20    20      10    10      20    20      20    20
Rain shwrs     S  S  S          S  S  S    S  S  S  S    S  S  S  S

$$
PRZ002-082000-
Roosevelt Roads Naval Airstation-Ceiba PR
18.25N  65.63W Elev. 39 ft
503 AM AST Wed Jan 8 2025

Date             Wed 01/08/25            Thu 01/09/25            Fri 01/10/25
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                      84          71          84          68          83
Temp             77 82 84 78 75 73 72 71 76 82 84 76 73 71 69 68 73 81 83 77 74
Dewpt            74 75 74 74 72 72 72 71 72 72 72 72 72 71 69 68 72 73 71 70 69
RH               90 79 72 88 90 97100100 87 72 67 87 97100100100 97 77 67 79 84
Wind dir          E  E  E  E  E  E  E  E SE  S  S  E  N NW  N  N  N  N  N  N  N
Wind spd          8 10 10  9  8  8  6  4  3  5  4  4  1  4  6  6  5  5 10 11 11
Clouds           SC SC CL SC CL FW FW FW FW FW SC SC SC SC SC SC SC SC SC SC CL
PoP 12hr                     30          10          40          30          50
QPF 12hr                   0.17        0.03        0.24        0.12        0.21
Rain shwrs        C  C     C     S  S  S  S  S  C  C  C  C  C  C  C  C  C  C
Heat index          89 91                   87 89                   86 87
Max heat               91    89                90    87                88    85


Date          Sat 01/11/25  Sun 01/12/25  Mon 01/13/25  Tue 01/14/25
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    82      70    85      73    83      72    83
Temp          71 74 82 74   71 75 85 77   74 77 83 75   73 76 83 75
Dewpt         68 69 68 68   67 69 69 69   68 70 70 69   69 70 71 70
PWind dir         N    NE       E     E      NE    NE      NE    NE
Wind char        GN    GN      LT    LT      LT    GN      GN    GN
Avg clouds    CL FW SC CL   CL FW FW FW   SC SC FW SC   SC SC FW SC
PoP 12hr         20    20      10    10      10    20      20    30
Rain shwrs        S  S          S  S  S    S  S  S  S    S  S  C  C

$$
PRZ007-082000-
Mercedita Airport-Ponce PR
18.02N  66.56W Elev. 26 ft
503 AM AST Wed Jan 8 2025

Date             Wed 01/08/25            Thu 01/09/25            Fri 01/10/25
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          88          74          87
Temp             79 85 87 81 78 76 75 74 79 86 88 81 78 76 75 74 79 85 87 80 77
Dewpt            67 68 71 71 71 70 69 68 68 67 68 68 68 68 65 64 66 67 68 69 68
RH               67 57 59 72 79 82 82 82 69 53 52 65 71 76 71 71 64 55 53 69 74
Wind dir         NE  E SE  E NE NE NE NE NE SE  S  S  N  N  N  N  N  N  N  N  N
Wind spd          3  6 11  9  6  4  3  3  2  8  5  3  2  3  5  4  3  4  4  2  6
Clouds           FW FW CL SC SC CL FW CL CL CL SC SC SC SC FW FW FW FW SC SC CL
PoP 12hr                     40          40          40          20          20
QPF 12hr                   0.18        0.06        0.17        0.04        0.08
Rain shwrs        S  S     S  C     S           C  S  S  S  S  S  S  S  S  S
Heat index          89 92 85             81 89 91 84                88 90 83
Max heat               92    91          81    91    90                90    89


Date          Sat 01/11/25  Sun 01/12/25  Mon 01/13/25  Tue 01/14/25
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    86      72    87      75    87      73    86
Temp          74 78 86 76   73 77 87 79   76 79 87 77   74 78 86 77
Dewpt         65 65 65 65   62 62 68 70   66 64 66 65   65 64 63 64
PWind dir         N     E      NE     E      NE     E      NE    NE
Wind char        LT    GN      LT    LT      LT    GN      LT    GN
Avg clouds    CL CL FW FW   CL CL FW FW   CL CL CL CL   CL CL FW SC
PoP 12hr          0     5       0    10       0     0       0    20
Rain shwrs           S  S          S  S                        S  S

$$
PRZ008-082000-
Rafael Hernandez Airport-Aguadilla PR
18.50N  67.13W Elev. 237 ft
503 AM AST Wed Jan 8 2025

Date             Wed 01/08/25            Thu 01/09/25            Fri 01/10/25
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                      82          73          82          73          81
Temp             76 81 82 78 76 75 74 73 76 81 82 78 76 75 74 73 76 80 81 77 75
Dewpt            70 72 73 72 72 73 72 71 69 71 71 70 70 71 71 70 68 68 67 66 66
RH               82 74 74 82 87 94 93 93 79 72 69 76 82 87 90 90 76 67 63 69 74
Wind dir          E NE NE NE  E  E  E SE SE  N NW NW  N  N  N  N  N  N  N  N NE
Wind spd          9 10 10 12 11 12 11  9  8  4  8  8  8  6  8 11 12 12 16 13 13
Clouds           CL CL FW CL SC FW CL CL CL CL CL CL SC SC SC SC SC SC SC SC FW
PoP 12hr                     20          20          40          50          40
QPF 12hr                   0.09        0.03        0.03        0.18        0.17
Rain shwrs              S     S  S                    C  C  C  C  C  C  C  C  S
Heat index          85 87                   84 86                   82 83
Max heat               87    86                86    85                84    82


Date          Sat 01/11/25  Sun 01/12/25  Mon 01/13/25  Tue 01/14/25
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    80      72    81      74    82      72    80
Temp          73 75 80 74   73 75 81 76   74 77 82 75   73 75 80 76
Dewpt         66 64 67 67   67 65 67 67   68 66 68 67   68 66 69 68
PWind dir        NE    NE       E    NE      NE    NE      NE    NE
Wind char        GN    GN      GN    GN      GN    BZ      GN    BZ
Avg clouds    FW FW FW CL   CL CL CL FW   FW FW FW CL   CL FW FW FW
PoP 12hr          5     0       0     0       5     5       5     5
Rain shwrs     S  S                                         S  S

$$
PRZ010-082000-
Eugenio Maria de Hosto Airport-Mayaguez PR
18.27N  67.15W Elev. 28 ft
503 AM AST Wed Jan 8 2025

Date             Wed 01/08/25            Thu 01/09/25            Fri 01/10/25
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          72          86          72          85
Temp             77 83 85 79 76 74 73 72 77 84 86 79 76 74 73 72 77 83 85 78 75
Dewpt            72 75 76 76 74 73 72 71 72 75 76 74 73 72 71 70 72 73 72 70 68
RH               85 77 75 91 94 97 97 97 85 74 72 85 90 93 93 93 85 72 65 76 79
Wind dir         NE  E  W  N NE NE NE NE  E SW  W NW  N  N  N  N  N  N  N  N NE
Wind spd          4  1  4  3  5  8  6  3  3  3  3  3  8  8  8  9  9 10 14 13 12
Clouds           CL CL SC B2 SC SC CL CL CL CL SC SC SC SC SC SC SC SC SC SC CL
PoP 12hr                     60          40          40          20          30
QPF 12hr                   0.52        0.08        0.23        0.07        0.11
Rain shwrs              C  L  C  S              C  C  S  S  S  S  S  S  C  C
Heat index          91 94                   92 95 83                89 91
Max heat               94    92                96    93                91    88


Date          Sat 01/11/25  Sun 01/12/25  Mon 01/13/25  Tue 01/14/25
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          71    84      71    85      73    86      73    84
Temp          72 76 84 75   72 76 85 77   74 78 86 77   74 77 84 76
Dewpt         67 68 70 69   67 68 71 69   68 69 72 69   68 69 72 70
PWind dir        NE    SE       E     N      NE    NE      NE    NE
Wind char        GN    LT      LT    LT      GN    GN      GN    GN
Avg clouds    CL CL FW SC   CL CL FW FW   CL FW FW CL   CL CL CL CL
PoP 12hr          0    20       0    10       5     5       0     0
Rain shwrs           S  S          S  S

$$
VIZ001-082000-
CYRIL E. King Airport-St Thomas USVI
18.33N  64.97W Elev. 23 ft
503 AM AST Wed Jan 8 2025

Date             Wed 01/08/25            Thu 01/09/25            Fri 01/10/25
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                      84          73          83          74          84
Temp             78 83 84 79 76 75 74 73 77 82 83 79 77 76 75 74 78 83 84 79 76
Dewpt            73 73 71 71 70 70 70 70 70 70 70 69 69 70 70 71 71 71 70 69 68
RH               85 72 65 77 82 84 87 90 79 67 65 72 76 82 84 90 79 67 63 72 76
Wind dir          E  E  E  E  E  E  E  E SE SE  S  S NW NW  N  N  N  N  N  N  N
Wind spd         14 13 13 11 10 10 10  9  6  6  2  2  2  5  8  9  6  6 13 17 17
Clouds           CL FW CL CL CL CL FW FW CL FW SC CL SC SC SC SC SC SC SC SC CL
PoP 12hr                      5          10          30          30          40
QPF 12hr                   0.01        0.02        0.10        0.11        0.14
Rain shwrs           S              S  S     S  C     C  C  C  C  S  S  C  C
Heat index          88 89                   85 87                   87 88
Max heat               89    87                87    86                88    87


Date          Sat 01/11/25  Sun 01/12/25  Mon 01/13/25  Tue 01/14/25
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      74    84      75    86      74    85
Temp          74 77 84 77   75 78 84 78   76 79 86 78   75 78 85 78
Dewpt         68 67 67 67   67 67 68 68   68 68 68 68   68 69 70 69
PWind dir         N    NE       E     E      NE    NE      NE    NE
Wind char        BZ    GN      GN    GN      GN    BZ      BZ    BZ
Avg clouds    CL CL CL FW   FW FW CL FW   SC FW FW FW   CL CL FW SC
PoP 12hr          0     0       0     5       5    10       0    20
Rain shwrs                            S    S  S  S  S          S  S

$$
VIZ002-082000-
Henry E. Rohlsen Airport-St Croix USVI
17.70N  64.80W Elev. 74 ft
503 AM AST Wed Jan 8 2025

Date             Wed 01/08/25            Thu 01/09/25            Fri 01/10/25
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          71          85          72          85
Temp             78 84 86 79 76 74 72 71 76 83 85 79 76 74 73 72 77 83 85 79 76
Dewpt            74 73 73 72 71 71 71 70 71 71 71 70 69 70 70 71 72 72 71 71 70
RH               88 70 65 79 85 90 97 97 85 67 63 74 79 87 90 97 85 70 63 77 82
Wind dir          E  E  E  E  E  E  E  E  E SE SE  E NE  N  N  N  N  N  N  N  N
Wind spd         12 14 13 12 11 10 10 10  8  8  5  3  3  3  5  6  5  5  6 11 16
Clouds           CL CL CL CL FW CL FW FW FW FW SC CL SC SC SC SC FW FW SC SC CL
PoP 12hr                     10          10          30          20          20
QPF 12hr                   0.01        0.03        0.10        0.07        0.07
Rain shwrs                    S     S  S  S  S  C     S  S  S  S  S  S  S  S
Heat index          90 93                   88 90                   89 90
Max heat               93    91                90    88                91    88


Date          Sat 01/11/25  Sun 01/12/25  Mon 01/13/25  Tue 01/14/25
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    85      72    85      74    84      71    85
Temp          73 77 85 76   73 77 85 77   75 78 84 75   72 76 85 76
Dewpt         69 70 70 69   69 70 70 70   70 70 70 69   69 69 70 70
PWind dir        NE    NE       E     E      NE    NE      NE    NE
Wind char        BZ    GN      GN    GN      GN    GN      GN    BZ
Avg clouds    CL FW FW FW   SC FW FW SC   CL CL FW SC   SC FW FW SC
PoP 12hr         10    10      10    20       0    10      10    20
Rain shwrs        S  S  S    S  S  S  S          S  S    S  S  S  S

$$