Point Forecast Matrices
Issued by NWS San Juan, PR

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Point Forecast Matrices
National Weather Service San Juan PR
503 PM AST Sat Apr 27 2024

PRZ001-280800-
Luis Munoz Marin International Airport-San Juan
18.43N  66.00W Elev. 9 ft
503 PM AST Sat Apr 27 2024

Date           04/27/24      Sun 04/28/24            Mon 04/29/24            Tue
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          83          75          83          74
Temp             80 78 77 76 80 82 83 81 78 77 75 75 79 82 83 80 77 76 75 75 79
Dewpt            72 73 72 71 72 73 73 72 72 72 72 72 72 72 73 72 72 71 71 71 72
RH               77 85 85 85 77 74 72 74 82 85 90 90 79 72 72 77 85 85 87 87 79
Wind dir         NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE
Wind spd          9 11 11 10 12 14 14 13 12 11 11 12 14 16 17 16 14 13 12 12 13
Clouds           B1 B2 B2 B1 SC B2 B2 B1 B2 B2 B1 B1 B1 B1 SC SC B1 B1 B1 B1 SC
PoP 12hr                     50          60          60          40          40
QPF 12hr                   0.39        1.54        0.27        0.12        0.09
Rain shwrs        C  C  C  C  C  L  L  C  L  L  C  C  C  C  C  C  C  C  C  C  C
Tstms             S     S  S     S  S  S  S  S
Heat index       83          84 88 89 85             83 87 89 84             82
Max heat         89          84    89    88          83    89    88          82


Date           04/30  Wed 05/01/24  Thu 05/02/24  Fri 05/03/24  Sat 05/04/24
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          83      75    85      75    84      76    86      76    86
Temp          83 78   75 81 85 78   75 80 84 79   76 82 86 79   76 82 86 79
Dewpt         73 72   72 73 75 74   73 74 75 74   73 74 75 74   74 74 76 75
PWind dir        NE       E     E       E     E       E     E       E     E
Wind char        GN      GN    GN      LT    LT      LT    LT      LT    GN
Avg clouds    B1 B2   B2 B1 B1 B2   B2 B2 B2 B2   B2 B1 B1 B1   B1 B1 B2 B2
PoP 12hr         60      50    50      60    70      50    50      50    60
Rain shwrs     L  L    C  C  C  C    C  L  L  L    C  C  C  C    C  C  L  L
Tstms          S  S    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$
PRZ002-280800-
Roosevelt Roads Naval Airstation-Ceiba PR
18.25N  65.63W Elev. 39 ft
503 PM AST Sat Apr 27 2024

Date           04/27/24      Sun 04/28/24            Mon 04/29/24            Tue
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                      79          87          79          85          78
Temp             82 81 79 79 83 86 87 85 82 81 79 79 82 84 85 83 81 79 78 78 82
Dewpt            73 73 72 72 73 74 74 74 73 73 73 72 73 74 74 73 72 72 72 72 73
RH               74 77 79 79 72 68 65 70 74 77 82 79 74 72 70 72 74 79 82 82 74
Wind dir         NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE
Wind spd          9 11 12 12 12 13 14 12 12 12 12 13 14 14 16 16 14 14 12 12 13
Clouds           B1 B2 B2 B1 SC B2 B2 B1 B2 B2 B1 B1 B1 B1 SC SC SC SC SC SC SC
PoP 12hr                     50          60          60          40          30
QPF 12hr                   0.38        1.37        0.24        0.13        0.09
Rain shwrs        C  C  C  C  C  C  C  C  L  C  C  C  C  C  C  C  C  C  C  C  C
Tstms             S     S  S     S  S  S  S  S
Heat index       87 85 83 83 90 94 96 92 87 85 83 83 88 91 92 89 85 83       88
Max heat         92    86    90    96    95    86    88    92    92    84    88


Date           04/30  Wed 05/01/24  Thu 05/02/24  Fri 05/03/24  Sat 05/04/24
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          86      77    86      77    85      76    88      77    88
Temp          86 80   77 82 86 80   77 82 85 79   76 83 88 81   77 83 88 81
Dewpt         74 73   73 74 75 74   74 75 76 74   74 75 75 75   75 76 76 76
PWind dir        NE      NE     E       E     E       E     E       E     E
Wind char        GN      GN    GN      GN    LT      LT    LT      LT    GN
Avg clouds    B1 B2   B2 B2 B2 B2   B2 B2 B1 B2   B2 B1 SC B1   B2 B2 B1 B1
PoP 12hr         60      60    60      60    70      50    50      50    50
Rain shwrs     L  L    L  L  L  L    L  L  L  L    C  C  C  C    C  C  C  C
Tstms          S  S    S  S  S  S    S  S  S  S    S  S     S    S  S  S

$$
PRZ007-280800-
Mercedita Airport-Ponce PR
18.02N  66.56W Elev. 26 ft
503 PM AST Sat Apr 27 2024

Date           04/27/24      Sun 04/28/24            Mon 04/29/24            Tue
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                      73          87          75          86          73
Temp             77 75 74 74 81 85 87 84 79 77 76 76 81 85 86 82 78 76 74 74 80
Dewpt            71 70 69 68 68 67 70 70 69 69 69 68 69 68 68 69 68 68 67 67 68
RH               82 84 84 82 65 55 57 63 72 76 79 76 67 57 55 65 71 76 79 79 67
Wind dir         NE NE NE NE NE  E  E NE NE NE  E NE NE NE  E NE NE NE NE NE NE
Wind spd          5  5  9  8  9 14 14 10  9  8  6  9 10 14 14 11 11 11 10  8  9
Wind gust                          26                   25
Clouds           SC CL CL CL CL CL B2 OV SC CL SC SC CL CL SC SC SC SC SC SC FW
PoP 12hr                     10          70          20          20          10
QPF 12hr                      0        1.12        0.03        0.03        0.01
Rain shwrs        S                 L  L  S     S  S        S  S  S  S  S  S
Tstms                               S  S
Heat index                   84 88 92 88 82          84 88 90 86             83
Max heat         86          84    92    92          84    90    89          83


Date           04/30  Wed 05/01/24  Thu 05/02/24  Fri 05/03/24  Sat 05/04/24
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          86      74    88      76    87      77    89      77    89
Temp          86 78   74 82 88 80   76 82 87 80   77 84 89 81   77 84 89 81
Dewpt         71 70   70 70 72 72   70 70 72 70   68 69 72 72   70 70 72 73
PWind dir        NE      NE     E      NE     E      NE     E      NE     E
Wind char        GN      LT    GN      LT    LT      LT    LT      LT    GN
Avg clouds    SC B1   SC SC SC B1   B1 B1 B2 B1   SC SC B1 B2   SC SC B1 SC
PoP 12hr         50      10    50      50    60      20    80      30    40
Rain shwrs     C  C    S  S  C  C    C  C  L  L    S  S  D  D    S  C  C  C
Tstms          S  S          S  S       S  S  S          S  S

$$
PRZ008-280800-
Rafael Hernandez Airport-Aguadilla PR
18.50N  67.13W Elev. 237 ft
503 PM AST Sat Apr 27 2024

Date           04/27/24      Sun 04/28/24            Mon 04/29/24            Tue
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          83          74          83          72
Temp             78 77 75 75 79 82 83 80 77 76 75 75 79 82 83 80 76 74 73 73 78
Dewpt            72 72 72 72 70 71 71 71 70 71 72 71 70 70 70 70 70 70 71 70 70
RH               82 85 90 90 74 69 67 74 79 85 90 87 74 67 65 72 82 87 93 90 76
Wind dir          E  E NE NE  E NE NE NE NE NE NE  E NE NE NE NE NE  E  E  E  E
Wind spd         16 17 18 17 19 20 20 20 20 19 18 19 20 21 21 21 20 20 19 18 19
Clouds           SC B1 SC B1 SC B1 SC B1 SC SC SC SC CL CL SC SC SC SC SC SC CL
PoP 12hr                     50          40          30          20          10
QPF 12hr                   0.22        0.73        0.04        0.02        0.01
Rain shwrs        C  C  S  C  S  C  S  C  C  S  S  S        S  S  S  S  S  S
Tstms                      S     S     S
Heat index                   82 86 88 84             82 86 87 83
Max heat         85          82    88    87          82    87    87


Date           04/30  Wed 05/01/24  Thu 05/02/24  Fri 05/03/24  Sat 05/04/24
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          82      73    83      73    83      74    83      74    83
Temp          82 76   73 79 83 76   73 79 83 77   74 79 83 77   74 79 83 77
Dewpt         71 71   73 71 72 72   73 71 73 73   74 72 73 73   74 72 74 74
PWind dir        NE       E    NE       E    NE       E     E       E     E
Wind char        BZ      BZ    BZ      GN    GN      GN    GN      GN    BZ
Avg clouds    CL FW   SC SC SC B2   B2 B2 B1 B1   B2 B1 B1 B1   B2 B2 B2 B2
PoP 12hr          5       5    70      50    50      50    60      60    60
Rain shwrs        S    S  S  L  L    C  C  C  C    C  C  C  L    L  L  L  L
Tstms                        S  S    S  S  S  S    S  S     S    S  S  S  S

$$
PRZ010-280800-
Eugenio Maria de Hosto Airport-Mayaguez PR
18.27N  67.15W Elev. 28 ft
503 PM AST Sat Apr 27 2024

Date           04/27/24      Sun 04/28/24            Mon 04/29/24            Tue
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                      73          87          74          87          72
Temp             78 76 74 74 81 85 87 83 79 77 75 75 81 86 87 83 77 75 73 73 80
Dewpt            74 73 72 71 73 75 76 75 73 72 71 71 73 75 76 75 72 71 70 71 72
RH               88 90 93 90 77 72 70 77 82 85 87 87 77 70 70 77 85 87 90 93 77
Wind dir         NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE
Wind spd         11 12 12 12 14 16 14 17 16 13 13 13 16 16 14 19 17 17 13 13 14
Clouds           FW FW CL FW CL FW SC SC SC FW SC SC CL CL SC SC SC SC SC SC FW
PoP 12hr                      0          10          10          30          10
QPF 12hr                   0.01        0.03        0.02        0.05        0.01
Rain shwrs                          S  S  S  S  S  S        C  C  S  S  S  S
Tstms
Heat index                   86 94 98 91             86 94 98 90             84
Max heat         91          86    98    97          86    98    97          84


Date           04/30  Wed 05/01/24  Thu 05/02/24  Fri 05/03/24  Sat 05/04/24
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          86      74    87      75    87      76    87      76    87
Temp          86 78   74 82 87 79   75 82 87 80   76 82 87 80   76 82 87 80
Dewpt         76 73   72 73 78 74   73 74 78 75   73 75 78 75   73 75 79 76
PWind dir        NE      NE    NE      NE    NE       E    NE       E     E
Wind char        GN      GN    LT      LT    LT      GN    LT      LT    LT
Avg clouds    FW SC   CL CL SC B2   B1 B1 B2 B1   B2 B1 B1 B1   B1 B1 B1 B1
PoP 12hr         20       0    60      60    60      50    50      40    50
Rain shwrs     S  S          L  L    C  L  L  C    C  C  C  C    C  C  C  C
Tstms                        S  S       S  S  S    S  S  S  S          S  S

$$
VIZ001-280800-
CYRIL E. King Airport-St Thomas USVI
18.33N  64.97W Elev. 23 ft
503 PM AST Sat Apr 27 2024

Date           04/27/24      Sun 04/28/24            Mon 04/29/24            Tue
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          89          77          88          76
Temp             81 80 79 79 84 88 89 86 81 79 78 78 83 87 88 85 80 78 77 77 83
Dewpt            73 73 73 73 74 74 74 74 74 74 73 74 74 74 74 73 73 72 72 73 73
RH               77 79 82 82 72 63 61 68 79 85 85 88 74 65 63 67 79 82 85 87 72
Wind dir         NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE
Wind spd         16 18 18 19 17 16 17 18 20 20 19 20 21 21 21 21 23 23 21 20 20
Clouds           SC B1 B2 SC SC B1 SC B2 B1 SC B1 B1 SC SC FW FW FW FW FW FW SC
PoP 12hr                     50          50          40          20          30
QPF 12hr                   0.30        0.83        0.12        0.02        0.02
Rain shwrs        C  C  C  C  C  C  S  C  C  S  C  C  S  S  S  S              C
Tstms                   S        S     S  S
Heat index       86 84       91 96 98 93 87 83       90 95 96 91 85          89
Max heat         91    85    91    98    98    86    90    96    96    83    89


Date           04/30  Wed 05/01/24  Thu 05/02/24  Fri 05/03/24  Sat 05/04/24
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      77    87      78    86      77    87      78    87
Temp          88 81   77 83 87 81   78 83 86 80   77 83 87 81   78 83 87 81
Dewpt         74 74   74 75 75 75   75 76 75 75   74 76 75 75   75 76 77 76
PWind dir        NE       E     E       E     E       E     E       E     E
Wind char        BZ      BZ    GN      GN    GN      LT    GN      GN    GN
Avg clouds    SC B1   B2 B2 B1 B1   B2 B2 B2 B2   B2 B1 SC SC   B1 B1 B1 B1
PoP 12hr         60      60    60      60    50      50    30      30    40
Rain shwrs     C  L    L  L  C  L    L  L  C  C    C  C  S  C    C  C  C  C
Tstms             S    S  S  S  S    S  S  S  S    S  S

$$
VIZ002-280800-
Henry E. Rohlsen Airport-St Croix USVI
17.70N  64.80W Elev. 74 ft
503 PM AST Sat Apr 27 2024

Date           04/27/24      Sun 04/28/24            Mon 04/29/24            Tue
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          76          88          76
Temp             81 79 77 77 83 87 88 85 80 78 77 77 83 87 88 85 80 78 77 77 82
Dewpt            72 72 72 72 73 73 73 73 73 73 73 73 74 74 74 73 73 73 73 73 74
RH               74 79 85 85 72 63 61 67 79 85 87 87 74 65 63 67 79 85 87 87 77
Wind dir         NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE
Wind spd         14 13 13 12 13 13 16 16 16 16 16 17 19 19 19 19 20 20 19 18 19
Clouds           SC SC B2 B2 B1 B1 B1 B2 B1 SC B1 B1 SC SC SC SC SC SC SC SC SC
PoP 12hr                     50          50          40          30          30
QPF 12hr                   0.36        0.88        0.14        0.07        0.04
Rain shwrs        S  C  C  C  C  C  C  C  C  S  C  C  C  C  S  S  S  S  S  S  C
Tstms                   S  S     S  S  S  S
Heat index       85          88 94 96 91 85          89 94 96 91 85          88
Max heat         91    84    88    96    95    83    89    96    96    83    88


Date           04/30  Wed 05/01/24  Thu 05/02/24  Fri 05/03/24  Sat 05/04/24
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          87      76    87      76    89      76    88      76    88
Temp          87 80   76 82 87 80   76 84 89 80   76 83 88 80   76 83 88 80
Dewpt         74 74   74 74 74 74   74 75 75 74   74 75 75 74   74 75 75 75
PWind dir        NE       E     E       E     E       E     E       E     E
Wind char        BZ      GN    GN      GN    GN      LT    LT      LT    GN
Avg clouds    SC B1   B2 B2 B1 SC   SC SC B1 B1   SC SC SC SC   SC SC SC SC
PoP 12hr         50      50    50      30    50      30    20      20    30
Rain shwrs     C  C    C  C  C  C    C  C  C  C    C  C  S  S    S  S  C  C
Tstms             S    S  S  S             S  S

$$


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