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 Thu Mar 28 2024

PRZ001-290800-
Luis Munoz Marin International Airport-San Juan
18.43N  66.00W Elev. 9 ft
503 PM AST Thu Mar 28 2024

Date           03/28/24      Fri 03/29/24            Sat 03/30/24            Sun
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          86          75          86          77
Temp             79 77 76 75 80 85 86 82 79 77 76 75 80 85 86 83 80 79 78 77 80
Dewpt            66 67 66 66 67 67 67 67 66 66 66 67 68 68 69 70 70 71 70 69 69
RH               64 71 71 74 65 55 53 61 64 69 71 76 67 57 57 65 72 77 76 76 69
Wind dir         NW  W  W NW  W NW NW NW NW  N  N  N NE NE NE NE NE NE NE NE NE
Wind spd         10  9  9  9  8 11 10  9  5  5  6  4  3  5  8  9  6  9 10 10 12
Clouds           FW FW SC CL CL SC SC CL CL CL CL CL SC SC FW FW SC SC SC SC B1
PoP 12hr                     10          10          30          30          40
QPF 12hr                   0.01        0.02        0.02        0.05        0.04
Rain shwrs        S  S  S        S  S                 C  C  S  S  S  S  S  S  C
Heat index                   82 87 89 85             83 88 90 87 83          83
Max heat         84          82    89    89          83    90    90    83    83
High Surf


Date           03/31  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24  Thu 04/04/24
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      77    86      78    87      77    87      79    87
Temp          83 79   77 82 86 81   78 83 87 81   78 83 87 82   79 83 87 81
Dewpt         70 69   68 68 69 68   68 67 68 68   68 68 70 71   71 72 72 73
PWind dir        NE      NE    NE       E     E       E     E      SE     E
Wind char        BZ      GN    BZ      GN    GN      GN    GN      LT    GN
Avg clouds    B1 B1   B1 B1 SC SC   B1 B1 SC FW   CL CL FW FW   CL CL CL FW
PoP 12hr         40      40    40      30    30       5    10       0    10
Rain shwrs     C  C    C  C  C  C    C  C  C  S          S  S             S

$$
PRZ002-290800-
Roosevelt Roads Naval Airstation-Ceiba PR
18.25N  65.63W Elev. 39 ft
503 PM AST Thu Mar 28 2024

Date           03/28/24      Fri 03/29/24            Sat 03/30/24            Sun
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                      71          86          76          85          77
Temp             76 74 73 72 78 83 85 82 79 78 77 76 80 84 85 82 80 78 78 77 81
Dewpt            67 67 67 67 68 69 69 69 68 68 67 67 69 70 70 70 71 71 72 70 71
RH               74 79 81 84 71 63 59 65 69 71 71 74 69 63 61 67 74 79 82 79 72
Wind dir         NW NW NW  W  W NW NW NW  N  N  N  N  N NE NE NE NE NE NE NE NE
Wind spd          6  9  8  9  8  5  4  4  6  8  9  9  5  6  8  9  9 10 11 11 12
Clouds           FW FW SC CL CL SC SC CL CL CL CL CL SC SC FW FW SC SC SC SC B1
PoP 12hr                     10          20          20          30          50
QPF 12hr                   0.02        0.03        0.01        0.05        0.06
Rain shwrs        S  S  S        S  S                 S  C  S  S  S  S  S  S  C
Heat index                      86 89 85 82          83 88 90 86 83          84
Max heat         82                89    89          83    90    89    83    84
High Surf


Date           03/31  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24  Thu 04/04/24
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          85      77    85      78    86      77    86      78    86
Temp          85 80   77 81 85 81   78 82 86 80   78 82 86 81   78 82 86 80
Dewpt         71 70   70 71 71 70   69 69 70 70   70 70 71 72   73 73 74 74
PWind dir        NE      NE    NE      NE     E       E     E       E    SE
Wind char        GN      GN    BZ      GN    GN      GN    GN      GN    LT
Avg clouds    B1 SC   B1 B1 SC SC   B1 B1 SC FW   CL CL FW FW   CL FW FW FW
PoP 12hr         50      40    40      40    40       5    10      10    20
Rain shwrs     C  C    C  C  C  C    C  C  C  S          S  S       S  S  S

$$
PRZ007-290800-
Mercedita Airport-Ponce PR
18.02N  66.56W Elev. 26 ft
503 PM AST Thu Mar 28 2024

Date           03/28/24      Fri 03/29/24            Sat 03/30/24            Sun
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                      68          86          77          86          77
Temp             78 76 75 74 80 84 86 83 80 79 78 77 81 85 86 83 80 79 78 77 81
Dewpt            61 62 62 62 62 61 62 62 63 63 63 63 64 65 66 67 68 68 68 67 66
RH               56 62 64 66 54 46 45 49 56 58 60 62 56 51 51 59 67 69 71 71 60
Wind dir          N NW NW  N  N  S SW SW  N  N  N  N  N  E SE SE  N NE NE NE NE
Wind spd          8  5  4  3  2  8 11  6  2  6  5  4  2  5  9  3  3  5  4  6  9
Clouds           CL CL CL CL CL CL CL SC CL CL CL CL CL SC FW FW SC SC SC SC SC
PoP 12hr                      0          10           0          30          30
QPF 12hr                      0        0.01           0        0.03        0.05
Rain shwrs                             S                 S  S  S  C  C  C  C  C
Heat index                   81 84 86 84 82          83 87 88 85 83          83
Max heat         82          81    86    86    81    83    88    88    82    83


Date           03/31  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24  Thu 04/04/24
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      78    87      77    87      79    87
Temp          86 80   78 82 86 81   78 83 87 81   78 83 87 82   79 83 87 81
Dewpt         64 64   61 61 65 66   65 63 64 63   62 62 65 68   67 66 67 69
PWind dir        NE      NE    NE      NE     E      NE     E       E    SE
Wind char        GN      GN    GN      GN    GN      LT    GN      LT    LT
Avg clouds    B1 B1   SC SC B1 B1   FW FW SC FW   CL CL FW FW   CL CL FW SC
PoP 12hr         60      30    60       5    10       0    10       0     5
Rain shwrs     L  L    S  C  L  L       S  S  S          S  S          S  S

$$
PRZ008-290800-
Rafael Hernandez Airport-Aguadilla PR
18.50N  67.13W Elev. 237 ft
503 PM AST Thu Mar 28 2024

Date           03/28/24      Fri 03/29/24            Sat 03/30/24            Sun
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          83          74          81          74
Temp             75 74 73 73 76 80 81 79 77 75 74 74 77 80 81 79 77 75 74 74 77
Dewpt            64 65 66 66 63 63 64 65 65 66 67 68 66 67 68 70 69 70 70 68 66
RH               69 74 79 79 64 56 56 62 67 74 79 82 69 65 65 74 76 84 87 82 69
Wind dir         NW NW NW NW NW NW NW  N  N  N  N NE NE NE NE NE NE NE NE NE NE
Wind spd         10 10 11 10  9 11 10 10  8  8  9 10 10  9 13 14 13 12 14 18 18
Clouds           CL CL CL CL CL CL CL CL CL CL SC SC SC SC SC SC SC SC SC SC SC
PoP 12hr                      0           0          30          30          20
QPF 12hr                      0           0        0.07        0.07        0.02
Rain shwrs                                      S  C  C  C  S  S  S  S  S  S  S
Heat index                      81 83                   82 84
Max heat                           83    83                84    84
High Surf


Date           03/31  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24  Thu 04/04/24
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          81      74    81      75    82      74    82      75    82
Temp          81 77   74 78 81 77   75 79 82 77   74 78 82 78   75 79 82 77
Dewpt         67 68   68 65 67 67   68 65 66 68   68 66 68 70   71 68 70 72
PWind dir        NE      NE    NE       E    NE       E     E       E    NE
Wind char        BZ      BZ    BZ      BZ    BZ      GN    LT      LT    LT
Avg clouds    SC SC   SC SC SC SC   SC FW FW FW   CL CL FW FW   CL CL FW SC
PoP 12hr         20      10    40      10    10       0    10       0    10
Rain shwrs     S  S    S  S  C  C    S  S  S  S          S  S          S  S

$$
PRZ010-290800-
Eugenio Maria de Hosto Airport-Mayaguez PR
18.27N  67.15W Elev. 28 ft
503 PM AST Thu Mar 28 2024

Date           03/28/24      Fri 03/29/24            Sat 03/30/24            Sun
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                      70          85          76          85          76
Temp             77 75 74 73 79 83 85 82 79 78 77 76 80 84 85 82 79 78 77 76 80
Dewpt            66 67 66 66 67 69 69 69 68 67 67 67 68 71 73 73 71 71 69 68 70
RH               69 76 76 79 67 63 59 65 69 69 71 74 67 65 67 74 77 79 76 76 72
Wind dir          N  N  N  N  N NW NW  N  N  N NE NE NE NE NE NE NE NE NE NE NE
Wind spd          9  9  9  9  8 10 12 12  9  8  9  9  8  2  4  9 11  9 10 11 14
Clouds           CL CL CL CL CL CL CL CL CL CL SC SC SC SC SC SC SC SC SC SC SC
PoP 12hr                      0           0          30          30          30
QPF 12hr                      0           0        0.05        0.06        0.04
Rain shwrs                                      S  S  C  C  S  S  C  C  C  C  S
Heat index                      87 89 85 82          83 89 92 87 82          84
Max heat         83                89    89          83    92    91          84
High Surf


Date           03/31  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24  Thu 04/04/24
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          85      76    85      77    86      76    86      78    86
Temp          85 79   77 81 85 80   77 82 86 80   77 82 86 81   78 82 86 80
Dewpt         72 70   68 68 71 70   67 68 71 70   68 68 73 72   71 71 75 74
PWind dir        NE      NE    NE      NE     E       E     E       E    SE
Wind char        BZ      GN    GN      GN    GN      GN    LT      LT    LT
Avg clouds    SC SC   SC SC SC B1   FW FW SC SC   CL CL FW SC   CL CL FW SC
PoP 12hr         40      10    50       5    40       0    20       0    10
Rain shwrs     C  C    S  S  C  C          C  C          S  S          S  S

$$
VIZ001-290800-
CYRIL E. King Airport-St Thomas USVI
18.33N  64.97W Elev. 23 ft
503 PM AST Thu Mar 28 2024

Date           03/28/24      Fri 03/29/24            Sat 03/30/24            Sun
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          84          76          85          77
Temp             78 77 76 75 79 83 84 81 79 78 77 76 80 84 85 82 80 78 78 77 81
Dewpt            68 69 69 69 70 70 70 69 69 69 69 68 69 69 71 70 71 71 72 71 71
RH               71 76 79 82 74 65 63 67 72 74 76 76 69 61 63 67 74 79 82 82 72
Wind dir         NW NW NW NW NW NW NW NW NW  N  N  N  N NE NE NE NE NE NE NE NE
Wind spd         18 16 14 16 13 10  9 13 14 12 13 13 11  8  8 11 14 17 17 16 18
Clouds           FW FW SC SC SC SC SC CL CL CL CL CL CL SC FW FW SC SC SC SC SC
PoP 12hr                     20          20           0          30          30
QPF 12hr                   0.05        0.04           0        0.04        0.04
Rain shwrs        S  S  S  S  S  S  S                    S  S  S  C  C  C  C  S
Heat index                   82 87 88 84 82          83 88 90 86 83          85
Max heat         84          82    88    88          83    90    89    83    85


Date           03/31  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24  Thu 04/04/24
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          85      77    85      78    86      77    86      78    86
Temp          85 80   77 81 85 81   78 82 86 80   78 82 86 81   78 82 86 81
Dewpt         72 71   71 71 71 70   70 69 70 70   70 71 72 72   73 74 75 74
PWind dir        NE      NE    NE      NE     E       E     E       E    SE
Wind char        BZ      BZ    BZ      BZ    BZ      BZ    BZ      BZ    GN
Avg clouds    SC SC   B1 B1 SC SC   SC SC SC SC   SC FW FW FW   CL FW FW FW
PoP 12hr         40      40    20      20    20      10    10      10    10
Rain shwrs     S  C    C  C  S  S    S  S  S  S    S  S  S  S       S  S  S

$$
VIZ002-290800-
Henry E. Rohlsen Airport-St Croix USVI
17.70N  64.80W Elev. 74 ft
503 PM AST Thu Mar 28 2024

Date           03/28/24      Fri 03/29/24            Sat 03/30/24            Sun
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                      74          87          76          86          76
Temp             77 76 74 74 80 85 87 83 79 77 77 76 81 85 86 83 80 78 77 76 81
Dewpt            68 68 67 67 68 68 69 67 68 68 68 68 67 67 68 68 69 70 70 70 71
RH               74 76 79 79 67 57 55 59 69 74 74 76 63 55 55 61 69 76 79 82 72
Wind dir          W NW NW NW NW NW  W NW NW  N  N  N  N NE NE NE NE NE NE NE NE
Wind spd          6  5 10 11 12 10 10 11 10 10 12 11 10 10 10 12 13 14 16 16 16
Clouds           FW FW SC CL CL SC SC SC CL CL CL CL CL CL CL CL SC SC SC SC B1
PoP 12hr                     10          20           0          30          40
QPF 12hr                   0.02        0.04           0        0.01        0.06
Rain shwrs        S  S  S        S  S  S                          C  C  C  C  C
Heat index                   83 89 91 86             83 88 90 86 82          84
Max heat         83          83    91    90          83    90    89          84


Date           03/31  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24  Thu 04/04/24
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      76    86      77    87      76    87      78    87
Temp          86 80   77 82 86 80   78 83 87 80   77 82 87 81   79 83 87 81
Dewpt         71 71   71 71 71 70   69 69 70 70   70 71 71 72   72 73 74 73
PWind dir        NE      NE    NE      NE    NE       E     E       E     E
Wind char        BZ      BZ    BZ      BZ    GN      BZ    BZ      GN    GN
Avg clouds    B1 SC   B1 B1 SC SC   SC SC SC SC   SC FW FW SC   SC SC SC SC
PoP 12hr         40      40    20      20    20      10    10      10    10
Rain shwrs     C  C    C  C  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$


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