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Issued by NWS San Juan, PR

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Point Forecast Matrices
National Weather Service San Juan PR
503 PM AST Fri Apr 19 2024

PRZ001-200800-
Luis Munoz Marin International Airport-San Juan
18.43N  66.00W Elev. 9 ft
503 PM AST Fri Apr 19 2024

Date           04/19/24      Sat 04/20/24            Sun 04/21/24            Mon
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          84          75          85          76
Temp             79 78 77 76 80 83 84 81 78 77 76 76 81 84 85 82 79 78 77 77 83
Dewpt            72 71 71 70 72 72 72 72 72 72 71 71 72 73 74 74 73 73 73 73 74
RH               79 79 82 82 77 70 67 74 82 85 85 85 74 70 70 77 82 85 87 87 74
Wind dir          N NE NE NE NE NE NE NE NE NE NE  E  E  E  E  E  E  E  E  E  E
Wind spd          6  6  6  5  6  9 10 10  9  8  6  8 10 11 12 11  9  8  6  5  5
Clouds           B2 B1 B2 B1 B1 B1 B1 B1 SC SC SC SC B1 B1 SC SC B2 B2 B2 B2 B1
PoP 12hr                     50          40          40          50          50
QPF 12hr                   0.19        0.23        0.11        0.16        0.16
Rain shwrs        C  C  C  C  S  C  C  C  C  C  C  C  C  C  S  S  C  C  C  C  C
Heat index       83          84 88 90 86             85 90 93 88 83          90
Max heat         88          84    90    89          85    93    92          90


Date           04/22  Tue 04/23/24  Wed 04/24/24  Thu 04/25/24  Fri 04/26/24
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          89      76    89      76    87      76    86      75    86
Temp          89 81   77 83 89 81   77 82 87 80   77 82 86 79   76 81 86 79
Dewpt         76 75   74 74 76 74   74 74 75 74   73 72 73 72   72 73 73 73
PWind dir         E       E     E       E     E       E     E       E     E
Wind char        GN      LT    GN      LT    GN      GN    GN      GN    GN
Avg clouds    B1 B2   B2 B2 B1 B2   B2 B2 B2 B1   SC SC B1 SC   SC SC B1 SC
PoP 12hr         60      60    60      60    60      40    40      50    50
Rain shwrs     L  L    L  L  L  L    C  L  L  C    S  C  C  S    S  C  C  S
Tstms          S  S          S  S

$$
PRZ002-200800-
Roosevelt Roads Naval Airstation-Ceiba PR
18.25N  65.63W Elev. 39 ft
503 PM AST Fri Apr 19 2024

Date           04/19/24      Sat 04/20/24            Sun 04/21/24            Mon
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          87          76          87          77
Temp             80 78 77 77 82 86 87 84 80 78 77 77 82 86 87 84 81 79 78 78 84
Dewpt            73 72 72 71 72 73 73 73 73 73 73 73 74 75 75 75 75 74 75 74 75
RH               79 82 85 82 72 65 63 70 79 85 87 87 77 70 68 74 82 85 91 88 74
Wind dir          N  N NE NE NE NE NE NE NE NE NE NE NE NE  E  E  E  E  E  E  E
Wind spd          8  8  9  8  9 10 10 11  9 10  8  9  9 11 10  9  9  8  6  6  6
Clouds           B2 B2 B2 B2 B1 B1 SC SC SC SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 B1
PoP 12hr                     50          40          40          60          60
QPF 12hr                   0.21        0.16        0.11        0.23        0.19
Rain shwrs        C  C  C  C  C  C  S  S  C  C  C  C  C  C  C  C  L  L  L  L  C
Heat index       84          87 93 94 90 84          88 94 96 92 86          92
Max heat         89          87    94    94    83    88    96    96    85    92


Date           04/22  Tue 04/23/24  Wed 04/24/24  Thu 04/25/24  Fri 04/26/24
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          89      77    88      77    87      76    87      76    87
Temp          89 81   78 83 88 81   78 83 87 80   77 82 87 80   77 82 87 81
Dewpt         76 76   75 75 76 75   74 75 75 75   73 74 74 72   73 74 74 73
PWind dir         E       E     E       E     E       E     E       E     E
Wind char        LT      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 B1   B2 B2 B1 B2   B2 B2 B2 B2   SC B1 B1 SC   B1 B1 B1 SC
PoP 12hr         60      60    60      60    60      40    40      50    50
Rain shwrs     C  L    L  L  L  L    C  L  L  L    C  C  C  C    C  C  C  C
Tstms                        S  S          S  S

$$
PRZ007-200800-
Mercedita Airport-Ponce PR
18.02N  66.56W Elev. 26 ft
503 PM AST Fri Apr 19 2024

Date           04/19/24      Sat 04/20/24            Sun 04/21/24            Mon
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          85          71          87          73
Temp             78 76 74 74 80 84 85 81 76 74 72 72 80 85 87 83 78 76 74 74 81
Dewpt            70 69 68 67 67 65 68 69 69 68 67 66 66 67 70 71 71 70 69 68 69
RH               76 79 82 79 65 53 57 67 79 82 84 81 62 55 57 67 79 82 84 82 67
Wind dir         NE NE  N  N NE NE SE  E NE NE NE NE NE  E  E  E NE NE NE  E  E
Wind spd          4  6  5  5  4 10 10  2  6  6  6  5  5 12 14  9  5  3  3  3  4
Clouds           B1 FW FW CL FW FW B2 B2 SC CL SC SC CL CL SC SC CL CL CL CL CL
PoP 12hr                     50          60          20          10           0
QPF 12hr                   0.03        0.26        0.04        0.06           0
Rain shwrs        C                 C  L  S     S  S        S  S
Tstms                                  S
Heat index                   82 85 88 84             82 88 92 88             84
Max heat         88          82    88    88          82    92    92          84


Date           04/22  Tue 04/23/24  Wed 04/24/24  Thu 04/25/24  Fri 04/26/24
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      74    88      75    88      73    87      72    87
Temp          87 79   75 82 88 80   76 82 88 78   74 81 87 77   73 80 87 77
Dewpt         72 73   72 70 71 72   71 70 72 72   69 68 67 69   67 66 70 70
PWind dir         E       E     E       E     E       E     E      NE     E
Wind char        GN      LT    GN      LT    LT      LT    GN      LT    GN
Avg clouds    FW SC   FW FW FW FW   FW FW SC SC   FW CL FW SC   CL FW SC SC
PoP 12hr         20       5     5      10    30       0    30      10    50
Rain shwrs     S  S                     S  C  C          C  C       S  C  C

$$
PRZ008-200800-
Rafael Hernandez Airport-Aguadilla PR
18.50N  67.13W Elev. 237 ft
503 PM AST Fri Apr 19 2024

Date           04/19/24      Sat 04/20/24            Sun 04/21/24            Mon
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          73          83          73
Temp             78 77 75 75 79 82 83 80 77 75 74 74 79 82 83 80 77 75 74 74 79
Dewpt            70 71 72 71 69 69 70 70 71 71 72 72 70 71 72 72 72 73 74 73 72
RH               76 82 90 87 72 65 65 72 82 87 93 93 74 69 70 77 85 94100 97 79
Wind dir         NE NE NE  E  E NE NE NE NE  E  E  E  E  E NE NE  E  E  E  E  E
Wind spd         12 12 11 11 13 13 18 16 14 16 13 13 16 16 17 16 14 13 12 10  8
Clouds           SC SC SC CL FW SC B1 B1 SC SC SC SC FW FW SC SC SC SC SC SC SC
PoP 12hr                     30          30          20          30          30
QPF 12hr                   0.06        0.15        0.03        0.11        0.10
Rain shwrs        S  S  C     S  S  C  C  S  S  S  S  S  S  C  C  C  C  C  C  C
Heat index                   82 85 87 84                86 88 84
Max heat         84          82    87    87                88    88


Date           04/22  Tue 04/23/24  Wed 04/24/24  Thu 04/25/24  Fri 04/26/24
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      74    83      75    83      75    82      74    83
Temp          83 77   75 79 83 78   75 79 83 78   75 79 82 77   74 79 83 77
Dewpt         73 74   74 72 74 74   74 72 74 74   74 71 72 72   73 71 72 72
PWind dir        NE       E    NE       E    NE       E     E       E     E
Wind char        LT      LT    GN      LT    GN      GN    GN      GN    BZ
Avg clouds    B1 B2   B2 B1 SC B2   SC SC B1 B1   SC SC SC CL   CL CL FW FW
PoP 12hr         60      50    60      30    40      30    30       0    10
Rain shwrs     L  L    C  C  L  L    C  C  C  C    S  C  C             S  S
Tstms          S  S          S  S

$$
PRZ010-200800-
Eugenio Maria de Hosto Airport-Mayaguez PR
18.27N  67.15W Elev. 28 ft
503 PM AST Fri Apr 19 2024

Date           04/19/24      Sat 04/20/24            Sun 04/21/24            Mon
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          71          87          73
Temp             78 76 74 74 81 85 87 83 77 74 72 72 80 85 87 83 78 76 74 74 81
Dewpt            73 72 71 70 72 74 75 75 73 72 71 71 73 76 77 76 75 74 73 72 74
RH               85 87 90 87 74 70 68 77 87 93 97 97 79 75 72 80 91 94 97 93 79
Wind dir         NE NE NE NE NE NE NE NE NE NE NE  E  E  E NE NE  E  E  E  E  E
Wind spd         12 10 10 10 10  8 10 14 10 12 10 10 10  2  2  4  8  6  4  4  3
Clouds           SC FW FW CL FW FW B2 B2 SC SC SC SC CL CL B2 B2 CL CL CL CL CL
PoP 12hr                     30          60          20          70           0
QPF 12hr                   0.02        0.55        0.02        0.66           0
Rain shwrs        C                 L  L  S  S  S  S        L  L
Tstms                               S  S                    S  S
Heat index                   85 93 96 90             84 94 99 92             86
Max heat         92          85    96    96          84    99    98          86


Date           04/22  Tue 04/23/24  Wed 04/24/24  Thu 04/25/24  Fri 04/26/24
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      73    87      74    88      73    87      72    88
Temp          87 78   74 81 87 79   75 82 88 78   74 81 87 77   73 81 88 78
Dewpt         79 76   74 75 79 76   74 75 78 76   73 74 77 75   72 73 76 74
PWind dir         E       E    NE       E    NE       E     E       E     E
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW SC   FW FW FW B1   SC SC SC B2   B2 SC FW B1   FW FW FW SC
PoP 12hr         50       0    50      20    60      50    50       5    50
Rain shwrs     C  C          C  C    S  S  L  L    C  C  C  C    S  S  C  C
Tstms          S  S          S  S          S  S

$$
VIZ001-200800-
CYRIL E. King Airport-St Thomas USVI
18.33N  64.97W Elev. 23 ft
503 PM AST Fri Apr 19 2024

Date           04/19/24      Sat 04/20/24            Sun 04/21/24            Mon
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          87          77          87          78
Temp             81 80 79 79 83 86 87 84 81 79 78 78 83 86 87 84 81 80 79 79 83
Dewpt            73 74 74 73 74 74 74 74 73 74 74 73 75 75 75 75 75 75 75 75 75
RH               77 82 85 82 74 68 65 72 77 85 88 85 77 70 68 74 82 85 88 88 77
Wind dir         NE NE NE NE NE NE NE NE NE NE NE NE NE  E  E  E  E  E  E  E  E
Wind spd         12 13 13 13 13 12 12 13 14 14 13 13 14 14 12 12 13 14 13 13 12
Clouds           B1 B1 B2 B2 B1 B1 SC SC SC SC SC SC B1 B1 B2 B2 B2 B2 B2 B2 SC
PoP 12hr                     50          40          40          60          60
QPF 12hr                   0.18        0.15        0.11        0.30        0.18
Rain shwrs        C  C  C  C  S  C  S  S  C  C  C  C  C  C  L  L  L  L  L  L  C
Tstms                                                       S  S
Heat index       86 84       89 94 95 91 85          89 94 96 92 87 85       91
Max heat         91    85    89    95    95    84    89    96    96    86    91


Date           04/22  Tue 04/23/24  Wed 04/24/24  Thu 04/25/24  Fri 04/26/24
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      79    87      79    87      77    87      77    88
Temp          87 82   79 83 87 82   79 83 87 81   78 83 87 81   78 83 88 81
Dewpt         76 76   76 76 75 75   75 75 75 75   73 74 74 73   73 74 73 74
PWind dir         E       E     E       E     E       E     E       E     E
Wind char        GN      GN    GN      GN    GN      BZ    BZ      GN    GN
Avg clouds    SC B1   B2 B1 B1 B1   B2 B2 B2 B1   SC SC SC SC   B1 B1 SC FW
PoP 12hr         50      50    50      60    60      20    40      40    30
Rain shwrs     C  C    C  C  C  C    C  L  L  C    S  S  S  C    C  C  C  S

$$
VIZ002-200800-
Henry E. Rohlsen Airport-St Croix USVI
17.70N  64.80W Elev. 74 ft
503 PM AST Fri Apr 19 2024

Date           04/19/24      Sat 04/20/24            Sun 04/21/24            Mon
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          88          76
Temp             79 77 76 76 82 86 87 84 79 77 76 76 82 87 88 85 80 78 77 77 83
Dewpt            73 73 73 72 73 73 74 74 74 73 73 73 74 74 75 74 75 74 74 74 75
RH               82 87 90 87 74 65 65 72 85 87 90 90 77 65 66 70 85 88 90 90 77
Wind dir         NE NE NE NE NE NE NE NE NE NE NE NE  E  E  E  E  E  E  E  E  E
Wind spd          9 10 10  9 10 11 11 12 12 12 11 11 11 12 11 11 11 11 11 10 11
Clouds           B1 B1 B1 B2 B1 SC SC SC SC SC SC SC SC SC B1 B1 B2 B2 B2 B2 SC
PoP 12hr                     50          40          40          60          60
QPF 12hr                   0.18        0.14        0.11        0.22        0.18
Rain shwrs        C  C  C  C  C  C  S  S  C  C  C  C  C  C  C  C  L  L  L  L  C
Heat index       83          87 93 95 90 83          89 95 98 92 85          90
Max heat         90          87    95    95          89    98    97    84    90


Date           04/22  Tue 04/23/24  Wed 04/24/24  Thu 04/25/24  Fri 04/26/24
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      76    88      76    88      74    87      75    87
Temp          88 80   77 83 88 80   77 83 88 79   75 81 87 79   76 82 87 79
Dewpt         75 75   74 75 75 74   74 74 74 74   72 72 73 73   72 73 73 73
PWind dir         E       E     E       E     E       E     E       E     E
Wind char        GN      GN    GN      GN    GN      BZ    GN      GN    GN
Avg clouds    SC B1   B1 B1 SC B1   B2 B2 B2 B1   SC SC SC SC   B1 B1 B1 FW
PoP 12hr         40      40    50      60    60      30    40      50    50
Rain shwrs     C  C    C  C  C  C    C  L  L  C    C  C  S  C    C  C  C  S

$$


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