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 Mon Sep 23 2024

PRZ001-240800-
Luis Munoz Marin International Airport-San Juan
18.43N  66.00W Elev. 9 ft
503 PM AST Mon Sep 23 2024

Date           09/23/24      Tue 09/24/24            Wed 09/25/24            Thu
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          93          81          92          79
Temp             84 82 81 80 88 92 93 88 85 83 82 81 87 91 92 86 83 81 80 79 87
Dewpt            77 77 76 76 76 78 78 77 77 77 76 76 77 77 77 77 78 77 76 76 77
RH               80 85 85 88 68 64 62 70 77 82 82 85 72 64 62 75 85 88 88 91 72
Wind dir          S  S  S SE  S  E  E SE  E SE SE SE  E  E  E  E  E  E  E  E  E
Wind spd          5  5  4  4  5  5 12 10  8  6  4  5  8 12 13 13 10  9  8  6  8
Clouds           SC SC FW FW SC SC SC SC B1 SC SC SC B1 B1 SC SC SC SC SC SC SC
PoP 12hr                     30          40          40          40          40
QPF 12hr                   0.06        0.63        0.09        0.11        0.09
Rain shwrs        S  S  S     C  S  C  C  C  C  C  C  C  C  S  S  C  C  C  C  C
Tstms                                     S
Heat index       94 90 87 86 99107109100 96 92 89 87 99105106 97 93 88 86    99
Max heat         99    93    99   109   107    94    99   106   105    91    99


Date           09/26  Fri 09/27/24  Sat 09/28/24  Sun 09/29/24  Mon 09/30/24
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          92      80    91      81    92      81    91      80    91
Temp          92 84   81 86 91 84   82 87 92 84   82 87 91 83   81 86 91 83
Dewpt         78 77   77 78 78 78   77 78 78 78   77 77 77 77   77 77 77 77
PWind dir         E       E     E       E     E       E     E      SE    SE
Wind char        GN      LT    GN      LT    GN      LT    LT      LT    LT
Avg clouds    SC SC   SC SC SC SC   B2 B1 B1 SC   B1 B1 B1 SC   SC SC SC SC
PoP 12hr         40      40    40      60    50      60    40      30    40
Rain shwrs     C  S    C  C  C  C    L  L  C  C    L  L  C  C    C  C  C  C

$$
PRZ002-240800-
Roosevelt Roads Naval Airstation-Ceiba PR
18.25N  65.63W Elev. 39 ft
503 PM AST Mon Sep 23 2024

Date           09/23/24      Tue 09/24/24            Wed 09/25/24            Thu
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          92          78          91          79
Temp             82 80 79 78 86 91 92 86 82 80 79 78 86 90 91 86 83 81 80 79 85
Dewpt            77 77 77 77 78 78 77 77 77 77 76 76 78 77 77 78 77 77 77 77 78
RH               85 91 94 97 77 66 62 75 85 91 91 94 77 66 64 77 82 88 91 94 80
Wind dir          S SE SE  S  S SE SE SE  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd          5  6  3  3  4  6  8  6  8  8  9  8  8 10 12 12 11 10  8  8 10
Clouds           B2 SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC SC B1 B1 B1 B1 SC
PoP 12hr                     50          30          40          40          50
QPF 12hr                   0.12        0.45        0.09        0.12        0.12
Rain shwrs        C  C  C  C  C  C  S  S  S  C  C  C  C  C  S  S  C  C  C  C  C
Tstms             S
Heat index       90 87       98106106 97 90 87       98103105 98 92 88 87    97
Max heat         97    88    98   107   106    88    98   105   103    90    97


Date           09/26  Fri 09/27/24  Sat 09/28/24  Sun 09/29/24  Mon 09/30/24
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      79    90      81    91      81    90      81    90
Temp          89 82   80 85 90 84   81 87 91 84   82 86 90 84   81 86 90 84
Dewpt         78 77   78 78 78 77   78 79 78 78   77 78 77 77   77 77 77 77
PWind dir         E       E     E       E     E       E     E      SE    SE
Wind char        GN      GN    GN      GN    GN      LT    LT      LT    GN
Avg clouds    SC SC   B1 SC SC SC   B2 B1 B1 SC   B1 B1 B1 B1   SC SC SC SC
PoP 12hr         50      50    40      60    60      60    50      40    50
Rain shwrs     C  C    C  C  C  C    L  L  L  C    L  L  C  C    C  C  C  C

$$
PRZ007-240800-
Mercedita Airport-Ponce PR
18.02N  66.56W Elev. 26 ft
503 PM AST Mon Sep 23 2024

Date           09/23/24      Tue 09/24/24            Wed 09/25/24            Thu
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          94          79          94          78
Temp             83 81 80 79 88 93 94 88 84 81 80 79 88 93 94 87 83 81 79 78 87
Dewpt            78 77 76 75 78 79 79 79 78 77 76 74 77 78 79 79 78 76 76 74 77
RH               85 88 88 88 72 64 62 75 82 88 88 85 70 62 62 77 85 85 91 88 72
Wind dir         NE NE  N NE  E SE SE  E NE NE NE NE  E SE SE  E  E NE NE NE NE
Wind spd          3  4  3  3  4  8  9  8  5  4  4  4  4 13 13 12  8  5  4  5  4
Wind gust                                                  24
Clouds           SC CL CL FW FW FW SC SC FW CL FW FW SC SC B2 B2 SC SC SC SC FW
PoP 12hr                     20          30          10          50           5
QPF 12hr                   0.02        0.55        0.01        0.46        0.01
Rain shwrs        S                 C  C        S  S  S  S  C  C  S  S  S  S  S
Tstms                                                       S  S
Heat index       93 88 86   102110112103 95 88 86   100109112101 93 87       99
Max heat        100    92   102   114   112    93   100   112   110    90    99


Date           09/26  Fri 09/27/24  Sat 09/28/24  Sun 09/29/24  Mon 09/30/24
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          94      79    93      81    93      81    92      80    91
Temp          94 84   80 87 93 85   82 88 93 85   82 87 92 84   81 86 91 83
Dewpt         79 77   76 78 79 78   76 78 80 79   76 77 79 78   76 77 79 77
PWind dir         E      NE     E      NE     E      NE     E      NE    SE
Wind char        GN      LT    GN      LT    GN      LT    LT      LT    LT
Avg clouds    FW SC   SC FW SC SC   SC SC B1 SC   SC SC SC SC   SC SC SC SC
PoP 12hr         30       5    20      40    40      10    10       5    40
Rain shwrs     C  C    S     S  S    S  C  C  S    S  S  S  S    S  S  C  C

$$
PRZ008-240800-
Rafael Hernandez Airport-Aguadilla PR
18.50N  67.13W Elev. 237 ft
503 PM AST Mon Sep 23 2024

Date           09/23/24      Tue 09/24/24            Wed 09/25/24            Thu
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          90          79          89          78
Temp             82 81 80 79 85 89 90 85 82 81 80 79 85 88 89 84 81 80 79 78 84
Dewpt            75 76 76 76 75 76 77 75 75 77 76 76 75 76 76 76 75 76 76 76 76
RH               79 85 88 91 72 66 66 72 79 88 88 91 72 68 66 77 82 88 91 94 77
Wind dir          E  E SE SE SE  N  N NE  E  E  E  E  E  E NE  E  E  E  E  E  E
Wind spd          3  1  1  3  2  2  9  5  9  8  5  5  8 11 12 11 14 14 12 10 11
Clouds           SC SC SC FW FW FW SC SC B1 SC SC SC SC SC SC SC FW FW FW FW CL
PoP 12hr                     10          40          40          30           0
QPF 12hr                   0.03        0.57        0.05        0.26           0
Rain shwrs        S  S  S  S        C  C  C  S  S  S  S  S  C  C
Tstms                                     S
Heat index       89 87 86    94100103 94 89 88 86    94 99100 93 87 86       93
Max heat         94    87    94   103   100    89    94   100    99    87    93


Date           09/26  Fri 09/27/24  Sat 09/28/24  Sun 09/29/24  Mon 09/30/24
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      78    89      79    90      79    88      80    88
Temp          88 81   79 84 89 82   80 85 90 82   80 84 88 82   80 85 88 82
Dewpt         76 75   76 76 77 76   77 76 77 76   76 75 76 75   76 75 76 75
PWind dir         E       E     E       E     E       E     E      SE     S
Wind char        GN      GN    GN      GN    GN      LT    LT      LT    GN
Avg clouds    FW SC   FW FW SC B1   SC SC SC B1   SC SC SC SC   SC SC SC B1
PoP 12hr         20       5    40      10    50      20    60       5    40
Rain shwrs     S  S          C  C          C  C          L  L    S  S  C  C
Tstms                        S  S          S  S          S  S

$$
PRZ010-240800-
Eugenio Maria de Hosto Airport-Mayaguez PR
18.27N  67.15W Elev. 28 ft
503 PM AST Mon Sep 23 2024

Date           09/23/24      Tue 09/24/24            Wed 09/25/24            Thu
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          94          77          93          75
Temp             82 80 78 78 87 92 94 87 82 80 78 77 86 92 93 85 80 78 76 76 85
Dewpt            77 77 76 76 79 81 79 78 77 77 76 75 77 80 79 78 77 77 76 75 78
RH               85 91 94 94 77 70 62 75 85 91 94 94 75 68 64 80 91 97100 97 80
Wind dir          E  E  E  E  E SW  W NE NE  E  E  E  E SW NW NE  E  E  E  E  E
Wind spd          3  2  3  5  3  2  5  5  5  4  3  3  3  1  5  2  9  9  8  5  5
Clouds           CL CL CL FW FW FW B2 OV SC FW FW FW CL CL B2 B2 FW FW FW FW CL
PoP 12hr                      5          70          10          60           0
QPF 12hr                   0.01        1.13        0.01        0.55           0
Rain shwrs                          C  L  S                 L  L
Tstms                               S  S                    S  S
Heat index       90 87      101113112100 90 87       97111110 97 87          97
Max heat         98    88   101   115   112    88    97   112   109          97


Date           09/26  Fri 09/27/24  Sat 09/28/24  Sun 09/29/24  Mon 09/30/24
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          93      76    93      78    93      78    92      80    91
Temp          93 81   77 86 93 83   79 87 93 83   79 86 92 84   81 86 91 83
Dewpt         80 77   76 78 80 77   76 78 81 78   76 78 80 77   76 78 80 77
PWind dir         E       E     E       E     E       E    SE      SE    SE
Wind char        LT      GN    LT      LT    LT      LT    LT      LT    GN
Avg clouds    FW B1   FW FW SC B1   SC SC B1 B1   SC SC SC SC   SC SC SC B1
PoP 12hr         60       5    60      10    60       5    60       5    60
Rain shwrs     L  L          L  L          L  L          L  L    S  S  L  L
Tstms          S  S          C  C          C  C          S  S          S  S

$$
VIZ001-240800-
CYRIL E. King Airport-St Thomas USVI
18.33N  64.97W Elev. 23 ft
503 PM AST Mon Sep 23 2024

Date           09/23/24      Tue 09/24/24            Wed 09/25/24            Thu
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          91          81          91          81
Temp             83 82 81 80 86 90 91 87 84 83 82 81 87 90 91 87 84 83 82 81 86
Dewpt            78 78 77 77 78 77 77 76 77 77 77 77 77 77 77 77 78 78 78 78 78
RH               85 88 88 91 77 66 64 70 80 82 85 88 72 66 64 72 82 85 88 91 77
Wind dir         SE SE SE SE SE SE SE  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd          8 11  9  6  8 10  8  9 12 14 13 11 11 13 16 14 14 16 14 14 16
Clouds           B1 SC SC SC SC SC SC SC SC SC SC SC B1 B1 SC SC SC SC SC SC SC
PoP 12hr                     40          10          40          40          20
QPF 12hr                   0.08        0.21        0.08        0.11        0.06
Rain shwrs        C  S  C  C  S  S  S  S  S  C  S  S  C  C  S  S  S  S  S  S  S
Tstms             S
Heat index       93 91 88 87 98103105 98 94 92 90 88 99103105 99 95 93 91 89 98
Max heat         97    92    98   105   103    92    99   105   103    93    98


Date           09/26  Fri 09/27/24  Sat 09/28/24  Sun 09/29/24  Mon 09/30/24
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      81    90      81    91      81    90      82    90
Temp          89 83   81 86 90 84   81 87 91 84   82 86 90 84   82 87 90 84
Dewpt         78 79   78 78 78 79   79 79 78 78   78 77 77 78   77 77 77 77
PWind dir         E       E     E       E     E       E     E      SE    SE
Wind char        BZ      BZ    BZ      GN    GN      LT    LT      LT    GN
Avg clouds    SC SC   SC SC SC SC   B1 B1 SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr         30      40    30      50    40      40    30      30    30
Rain shwrs     C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C  S

$$
VIZ002-240800-
Henry E. Rohlsen Airport-St Croix USVI
17.70N  64.80W Elev. 74 ft
503 PM AST Mon Sep 23 2024

Date           09/23/24      Tue 09/24/24            Wed 09/25/24            Thu
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          93          79          92          79
Temp             83 81 80 79 87 92 93 87 83 81 80 79 87 91 92 86 83 81 80 79 86
Dewpt            77 77 77 77 78 78 78 77 77 77 76 77 78 78 78 78 78 77 78 77 78
RH               82 88 91 94 75 64 62 72 82 88 88 94 75 66 64 77 85 88 94 94 77
Wind dir         SE  E SE SE  E SE SE  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd          6  8  6  5  9 10  9 10 10 11 11 11 11 13 16 13 13 14 13 12 14
Clouds           B1 SC SC SC SC SC SC SC SC CL SC SC B1 B1 SC SC SC SC SC SC SC
PoP 12hr                     40          20          40          40          20
QPF 12hr                   0.07        0.28        0.04        0.11        0.05
Rain shwrs        C  S  S  C  S  S  S  S  S     S  S  C  C  S  S  S  S  S  S  S
Tstms             S
Heat index       92 88 87   100107109 99 92 88 86   100106107 98 93 88 87    98
Max heat         97    90   100   109   107    90   100   107   106    91    98


Date           09/26  Fri 09/27/24  Sat 09/28/24  Sun 09/29/24  Mon 09/30/24
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          91      79    91      81    92      81    91      82    91
Temp          91 83   80 86 91 84   82 87 92 84   82 87 91 85   82 87 91 85
Dewpt         79 78   78 78 79 78   78 79 79 78   77 78 78 77   77 78 77 77
PWind dir         E       E     E       E     E       E     E       E    SE
Wind char        GN      GN    GN      GN    GN      LT    LT      LT    LT
Avg clouds    SC SC   SC SC SC B1   B1 B1 SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr         30      40    30      50    50      40    30      30    20
Rain shwrs     C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  S  S

$$