Point Forecast Matrices
Issued by NWS San Juan, PR

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FOCA52 TJSJ 132103
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Point Forecast Matrices
National Weather Service San Juan PR
503 PM AST Sun Jul 13 2025

PRZ001-140800-
Luis Munoz Marin International Airport-San Juan
18.43N  66.00W Elev. 9 ft
503 PM AST Sun Jul 13 2025

Date           07/13/25      Mon 07/14/25            Tue 07/15/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      77          89          77          90          78
Temp             81 79 78 79 84 88 89 86 81 79 77 79 85 89 90 87 82 80 78 79 85
Dewpt            73 74 73 72 73 72 73 74 73 73 73 72 73 74 75 75 75 75 74 74 75
RH               77 85 85 79 70 59 59 68 77 82 87 79 67 61 62 68 79 85 88 85 72
Wind dir          E  E  E SE  E  E  E  E  E  E SE  E  E  E  E  E  E  E  E  E  E
Wind spd         10  8  6  9 10 14 14 13 10  9  9  9  8 14 17 13 12 12 11 10 11
Clouds           SC B1 SC SC FW SC B2 B2 CL FW FW SC CL CL B1 B1 SC SC SC SC B2
PoP 12hr                     40          50          20          40          60
QPF 12hr                   0.09        0.26        0.02        0.26        0.09
Rain shwrs        S  C  S  S  S  C  C  C        S  S        C  C  S  S  S  S  L
Heat index       86 83       91 95 97 94 86 82       91 98101 96 89 85    83 93
Max heat         95    85    91    97    97    85    91   101   100    88    93


Date           07/16  Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          89      79    91      79    91      77    91      77    91
Temp          89 82   79 86 91 83   79 86 91 82   78 85 91 82   78 85 91 82
Dewpt         76 76   76 76 76 76   75 75 74 74   74 74 74 74   74 75 75 75
PWind dir         E       E     E       E     E       E     E       E     E
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2 B1   SC SC SC FW   CL FW SC FW   CL FW SC FW   CL FW SC FW
PoP 12hr         60      30    30      20    20      20    20      20    20
Rain shwrs     L  L    S  C  C  S       S  S  S       S  S  S       S  S  S
Tstms          S  S

$$
PRZ002-140800-
Roosevelt Roads Naval Airstation-Ceiba PR
18.25N  65.63W Elev. 39 ft
503 PM AST Sun Jul 13 2025

Date           07/13/25      Mon 07/14/25            Tue 07/15/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      78          88          79          88          79
Temp             81 80 78 79 84 87 88 86 82 81 79 80 84 87 88 86 82 81 79 80 84
Dewpt            73 73 73 72 73 73 74 73 73 73 72 72 73 74 75 75 75 75 74 74 75
RH               77 79 85 79 70 63 63 65 74 77 79 77 70 65 66 70 79 82 85 82 74
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          9  9  9 10 11 12 13 12 10 10 11 10 10 14 14 14 13 14 13 12 12
Clouds           SC B2 SC B1 SC B1 B2 B2 CL SC SC SC CL CL B1 B1 B1 B1 B1 B1 B2
PoP 12hr                     50          50          20          40          60
QPF 12hr                   0.14        0.31        0.03        0.14        0.13
Rain shwrs        C  C  C  C  S  C  C  C     S  S  S        C  C  C  C  C  C  L
Heat index       86 84    83 90 95 97 93 87 85 83 84 91 96 98 95 89 86 83 85 93
Max heat         92    85    90    97    96    87    91    98    97    88    93


Date           07/16  Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          88      80    89      80    89      78    88      79    88
Temp          88 83   80 85 89 83   80 85 89 82   78 84 88 82   79 84 88 82
Dewpt         76 76   76 76 76 76   75 75 75 75   74 74 74 74   74 75 76 75
PWind dir         E       E     E       E     E       E     E       E     E
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2 B1   SC SC SC FW   CL FW SC SC   SC SC SC FW   CL FW SC FW
PoP 12hr         60      40    40      20    20      20    20      20    20
Rain shwrs     L  L    S  C  C  S       S  S  S    S  S  S  S       S  S  S
Tstms          S  S

$$
PRZ007-140800-
Mercedita Airport-Ponce PR
18.02N  66.56W Elev. 26 ft
503 PM AST Sun Jul 13 2025

Date           07/13/25      Mon 07/14/25            Tue 07/15/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      75          90          75          91          76
Temp             80 78 76 77 84 89 90 86 80 78 76 77 85 90 91 87 81 79 77 78 86
Dewpt            73 71 71 70 72 74 74 74 73 72 71 70 72 74 75 75 74 72 72 71 73
RH               79 79 85 79 67 61 60 68 79 82 85 79 65 60 60 68 79 79 85 79 65
Wind dir          E NE NE NE  E SE SE SE  E  E  E  E  E SE SE  E  E  E  E  E  E
Wind spd          5  4  4  4  6 13 12 11 10  6  8  9  8 16 14 13 10  6  4  5  6
Wind gust                                               26 25
Clouds           CL CL CL CL CL CL SC SC FW CL SC FW CL CL CL CL CL CL CL CL CL
PoP 12hr                      0          10          10           0           0
QPF 12hr                   0.01        0.02        0.01           0           0
Rain shwrs                          S  S        S
Heat index       84          90 98 99 94 84          90 99102 97 86          93
Max heat         95    82    90    99    99    83    90   102   101    85    93


Date           07/16  Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          92      77    91      77    92      75    90      75    90
Temp          92 82   78 85 91 82   78 86 92 81   76 84 90 80   76 84 90 80
Dewpt         77 75   73 75 77 75   72 73 75 74   71 73 76 74   72 74 72 70
PWind dir         E       E     E       E     E       E     E       E     E
Wind char        GN      LT    GN      GN    GN      LT    GN      LT    GN
Avg clouds    FW SC   SC SC FW SC   CL CL FW SC   CL FW FW SC   FW FW CL CL
PoP 12hr         40      20    20       0    30       5    10       5     0
Rain shwrs     C  C    S  S  S  S          C  C          S  S

$$
PRZ008-140800-
Rafael Hernandez Airport-Aguadilla PR
18.50N  67.13W Elev. 237 ft
503 PM AST Sun Jul 13 2025

Date           07/13/25      Mon 07/14/25            Tue 07/15/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      75          87          75          87          76
Temp             79 77 75 77 82 86 87 84 79 77 75 77 82 86 87 84 80 78 76 78 83
Dewpt            74 74 74 74 72 72 74 74 73 74 73 73 72 73 74 74 74 75 75 75 74
RH               85 90 97 90 72 63 65 72 82 90 94 87 72 65 65 72 82 91 97 91 74
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          9 13 11 11 10  8  9 13  8 10 10  9 11 10 13 17 13 11  9 10 14
Clouds           SC SC CL FW CL CL OV B2 SC SC CL CL CL CL OV OV SC SC SC SC CL
PoP 12hr                     10          70          30          70          20
QPF 12hr                   0.01        0.96        0.04        0.96        0.04
Rain shwrs        S  S              L  L  C  S              L  L  S  S  S  S
Tstms                               S  S                    S  S
Heat index       83          87 92 95 91 82          87 93 95 92 84          90
Max heat         90          87    95    95          87    95    95    83    90


Date           07/16  Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          88      76    88      76    87      75    87      75    87
Temp          88 80   76 83 88 80   76 83 87 79   75 82 87 79   75 82 87 79
Dewpt         76 75   76 75 77 76   76 74 75 75   75 74 74 74   75 73 76 75
PWind dir         E       E     E       E     E       E     E       E     E
Wind char        BZ      GN    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    FW B1   B1 SC FW SC   CL CL FW FW   CL FW SC FW   CL CL SC SC
PoP 12hr         40      40    30       0    10      20    20       0    50
Rain shwrs     C  C    C  C  C  C          S  S       S  S  S          C  C
Tstms          S  S    S  S                                            S  S

$$
PRZ010-140800-
Eugenio Maria de Hosto Airport-Mayaguez PR
18.27N  67.15W Elev. 28 ft
503 PM AST Sun Jul 13 2025

Date           07/13/25      Mon 07/14/25            Tue 07/15/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      72          91          73          92          74
Temp             78 75 73 74 83 89 91 87 79 76 74 75 84 90 92 88 80 77 75 76 85
Dewpt            75 74 73 72 74 76 76 76 75 73 72 71 74 76 76 77 76 75 73 73 75
RH               91 97100 93 74 66 62 70 88 90 93 87 72 64 60 70 88 94 94 90 72
Wind dir          E  E  E  E  E  E  W NE  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd          6  6  5  4  4  2  6  6  5  8  5  4  4  4  6  6  4  2  3  4  5
Clouds           FW CL CL CL CL CL OV OV SC CL CL CL CL CL OV OV SC SC SC SC CL
PoP 12hr                      5          70          30          70          10
QPF 12hr                      0        1.03        0.04        0.94        0.02
Rain shwrs                          L  L  C                 L  L  S  S  S  S
Tstms                               S  S                    S  S
Heat index                   90101103 97 83          92102105 99 86          93
Max heat         98          90   103   102          92   105   104    83    93


Date           07/16  Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          92      75    93      74    93      74    91      73    91
Temp          92 81   76 86 93 80   75 85 93 80   75 84 91 79   74 84 91 79
Dewpt         79 77   75 76 79 77   75 76 78 76   74 75 78 76   74 75 78 76
PWind dir         E       E     E       E    NE       E     E       E     E
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC OV   OV B1 SC B1   CL CL FW SC   FW FW SC SC   SC FW SC SC
PoP 12hr         70      70    70       0    40       5    40      10    50
Rain shwrs     L  L    L  L  L  L          C  C       S  C  C    S  S  C  C
Tstms          S  S    S  S  S  S          S  S                        S  S

$$
VIZ001-140800-
CYRIL E. King Airport-St Thomas USVI
18.33N  64.97W Elev. 23 ft
503 PM AST Sun Jul 13 2025

Date           07/13/25      Mon 07/14/25            Tue 07/15/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      80          89          80          90          80
Temp             83 82 80 81 85 88 89 87 83 82 80 81 86 89 90 88 83 82 80 81 85
Dewpt            74 75 74 74 73 74 74 74 74 75 74 75 75 75 76 76 76 76 76 76 76
RH               74 79 82 79 67 63 61 65 74 79 82 82 70 64 64 68 80 82 88 85 75
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 16 14 18 18 16 16 16 17 16 12 18 16 19 20 20 21 20 18 18
Clouds           SC SC SC SC B1 B1 B1 SC CL CL CL CL SC SC B2 B2 B1 B1 B1 B1 B2
PoP 12hr                     40          40          10          50          60
QPF 12hr                   0.08        0.16           0        0.13        0.13
Rain shwrs        C  S  S  S  C  C  C  C              S  S  C  C  C  C  C  C  L
Heat index       90 88 85 87 92 97 98 95 90 88 85 87 95 99102 98 92 89 86 87 94
Max heat         96    90    92    98    98    89    95   102   101    91    94


Date           07/16  Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          88      81    91      81    91      80    90      80    91
Temp          88 83   81 87 91 84   81 87 91 84   80 86 90 83   80 87 91 84
Dewpt         77 77   77 78 77 77   76 75 75 75   75 75 75 75   75 76 77 76
PWind dir         E       E     E       E     E       E     E       E     E
Wind char        BZ      BZ    BZ      BZ    GN      GN    GN      BZ    BZ
Avg clouds    B2 B1   SC SC B1 SC   SC SC SC SC   SC SC SC CL   CL FW SC FW
PoP 12hr         60      40    40      10    10      20    20      20    20
Rain shwrs     L  L    S  C  C  S    S  S  S  S    S  S  S          S  S  S
Tstms          S  S

$$
VIZ002-140800-
Henry E. Rohlsen Airport-St Croix USVI
17.70N  64.80W Elev. 74 ft
503 PM AST Sun Jul 13 2025

Date           07/13/25      Mon 07/14/25            Tue 07/15/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      76          88          77          89          78
Temp             80 78 76 78 83 87 88 85 81 79 77 79 84 88 89 86 82 80 78 79 85
Dewpt            73 74 73 73 73 74 74 73 73 74 73 73 75 75 76 75 74 75 75 75 76
RH               79 88 90 85 72 65 63 67 77 85 87 82 74 66 66 70 77 85 91 88 75
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         11 11 13 12 14 18 16 14 14 14 13 12 16 14 14 19 18 19 18 16 16
Clouds           SC SC FW SC SC B1 B2 SC SC SC SC CL SC SC B1 B1 B2 B2 B2 B2 SC
PoP 12hr                     30          50          30          50          50
QPF 12hr                   0.07        0.16        0.05        0.13        0.13
Rain shwrs        C  S     S  C  C  C  S  S  C  S     S  S  C  C  C  C  C  C  C
Heat index       84          89 95 97 92 85          92 98100 95 88 85    84 94
Max heat         92    83    89    97    96    84    92   100   100    87    94


Date           07/16  Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          89      78    89      78    90      77    89      77    89
Temp          89 82   78 85 89 82   78 85 90 81   78 84 89 81   77 84 89 81
Dewpt         77 76   76 77 76 75   75 75 75 74   74 74 74 74   74 75 75 75
PWind dir         E       E     E       E     E       E     E       E     E
Wind char        BZ      BZ    BZ      BZ    GN      GN    GN      GN    BZ
Avg clouds    B1 B1   SC SC SC SC   CL CL FW FW   CL FW SC SC   SC FW CL FW
PoP 12hr         60      30    30       0    10      20    20       5    10
Rain shwrs     C  C    C  C  C  S          S  S       S  S  S    S  S     S
Tstms          S  S

$$