Point Forecast Matrices
Issued by NWS San Juan, PR

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Point Forecast Matrices
National Weather Service San Juan PR
503 AM AST Thu Mar 28 2024

PRZ001-282000-
Luis Munoz Marin International Airport-San Juan
18.43N  66.00W Elev. 9 ft
503 AM AST Thu Mar 28 2024

Date             Thu 03/28/24            Fri 03/29/24            Sat 03/30/24
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      85          75          86          75          86
Temp             79 83 85 82 79 77 76 75 80 85 86 82 79 77 76 75 80 85 86 83 80
Dewpt            64 64 66 66 66 66 66 66 67 66 67 67 66 66 66 67 68 68 69 70 70
RH               60 53 53 58 64 69 71 74 65 53 53 61 64 69 71 76 67 57 57 65 72
Wind dir          W NW NW NW NW  W  W  W  W NW NW NW NW NW  N  N NE NE NE NE NE
Wind spd          5  8 13 12 10  8  9  8  6 11 11  8  5  6  8  6  8  5 10 11 12
Clouds           CL CL FW FW FW FW SC SC SC FW FW FW FW FW FW FW SC SC FW FW SC
PoP 12hr                     10          20          20          20          20
QPF 12hr                   0.02        0.04        0.01        0.01        0.02
Rain shwrs              S  S  S  S  S  S  S     S  S        S  S  S  S  S  S  S
Heat index          85 87 84             82 87 89 84             83 88 90 87 83
Max heat               87    87          82    89    88          83    90    90
High Surf         Y  Y  Y  Y


Date          Sun 03/31/24  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          77    83      77    86      78    87      77    87
Temp          78 80 83 79   77 82 86 81   78 83 87 81   78 83 87 82
Dewpt         70 69 70 69   68 68 69 68   68 67 68 68   68 68 70 71
PWind dir        NE    NE      NE    NE      NE    NE       E     E
Wind char        GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC SC B1 B1   B1 B1 SC SC   B1 B1 SC FW   CL CL FW FW
PoP 12hr         40    40      40    40      30    30       5    10
Rain shwrs     S  C  C  C    C  C  C  C    C  C  C  S          S  S

$$
PRZ002-282000-
Roosevelt Roads Naval Airstation-Ceiba PR
18.25N  65.63W Elev. 39 ft
503 AM AST Thu Mar 28 2024

Date             Thu 03/28/24            Fri 03/29/24            Sat 03/30/24
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      84          72          85          76          85
Temp             78 82 84 80 76 74 73 72 78 83 85 82 79 78 77 76 80 84 85 82 80
Dewpt            65 66 67 68 68 67 67 66 68 68 68 68 68 68 67 67 69 70 70 70 71
RH               64 58 57 67 76 79 81 81 71 61 57 63 69 71 71 74 69 63 61 67 74
Wind dir         NW NW NW NW NW NW NW  W  W NW NW NW NW NW  N  N  N NE NE NE  N
Wind spd          6  4  2  3  6  9  9  6  6  5  5  4  5  9 10 10  8  5  6  9 10
Clouds           CL CL FW SC FW FW SC SC FW FW FW FW FW FW FW FW FW FW FW FW SC
PoP 12hr                     20          20          20          10          20
QPF 12hr                   0.03        0.04        0.02           0        0.02
Rain shwrs              S  S  S  S  S  S  S     S  S              S  S  S  S  S
Heat index          84 87 82                86 88 85 82          83 88 90 86 83
Max heat               87    86                88    88          83    90    89
High Surf         Y  Y  Y  Y


Date          Sun 03/31/24  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          77    85      77    85      78    86      77    86
Temp          78 81 85 80   77 81 85 81   78 82 86 80   78 82 86 81
Dewpt         72 71 71 70   70 71 71 70   69 69 70 70   70 70 71 72
PWind dir        NE    NE      NE    NE      NE    NE       E     E
Wind char        GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC B1 B1 SC   B1 B1 SC SC   B1 B1 SC FW   CL CL FW FW
PoP 12hr         50    50      40    40      40    40       5    10
Rain shwrs     S  C  C  C    C  C  C  C    C  C  C  S          S  S

$$
PRZ007-282000-
Mercedita Airport-Ponce PR
18.02N  66.56W Elev. 26 ft
503 AM AST Thu Mar 28 2024

Date             Thu 03/28/24            Fri 03/29/24            Sat 03/30/24
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      85          74          86          77          86
Temp             76 83 85 81 78 76 75 74 80 84 86 83 80 79 78 77 81 85 86 83 80
Dewpt            60 60 62 62 62 61 62 62 62 61 62 63 63 63 63 63 64 65 66 67 68
RH               58 46 46 53 58 60 64 66 54 46 45 51 56 58 60 62 56 51 51 59 67
Wind dir          N SW SW SW  N  N NW  N  N  S SW SW NE  N  N  N  N  E SE  E  N
Wind spd          4  6 10 10  8  5  4  3  3  6 11  6  2  6  5  3  1  5  8  2  4
Clouds           CL CL FW FW CL CL CL CL FW FW CL CL CL CL CL CL FW FW FW FW SC
PoP 12hr                     10           5           5          10          30
QPF 12hr                   0.01           0           0           0        0.02
Rain shwrs              S  S                                      S  S  S  S  C
Heat index          83 86 82             81 85 86 84 82          83 87 88 85 83
Max heat               86    85          81    86    86    81    83    88    88


Date          Sun 03/31/24  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          77    86      77    86      78    87      77    87
Temp          78 81 86 80   78 82 86 81   78 83 87 81   78 83 87 82
Dewpt         68 66 64 64   61 61 65 66   65 63 64 63   62 62 65 68
PWind dir        NE    NE      NE    NE      NE     E      NE     E
Wind char        LT    GN      GN    GN      LT    GN      LT    GN
Avg clouds    SC SC B1 B1   SC SC B1 B1   FW FW SC FW   CL CL FW FW
PoP 12hr         30    60      30    60       5    10       0    10
Rain shwrs     C  C  L  L    S  C  L  L       S  S  S          S  S

$$
PRZ008-282000-
Rafael Hernandez Airport-Aguadilla PR
18.50N  67.13W Elev. 237 ft
503 AM AST Thu Mar 28 2024

Date             Thu 03/28/24            Fri 03/29/24            Sat 03/30/24
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      81          72          81          74          81
Temp             77 80 81 78 75 74 73 72 76 80 81 79 77 75 74 74 77 80 81 79 77
Dewpt            62 62 63 64 64 66 66 66 63 64 64 65 65 66 67 68 66 67 68 70 69
RH               60 54 54 62 69 76 79 81 64 58 56 62 67 74 79 82 69 65 65 74 76
Wind dir          N NW NW NW NW NW NW NW NW NW NW  N  N  N  N NE NE NE NE NE NE
Wind spd          5  8 11  9  8 10 10  9  8 10 11 10  8 11 11 12 11 12 14 19 19
Clouds           CL CL FW FW CL CL CL CL FW FW CL CL FW FW FW FW SC SC SC SC SC
PoP 12hr                     10           5           5          20          20
QPF 12hr                   0.01           0           0        0.01        0.04
Rain shwrs              S  S                                S  S  S  S  S  S  S
Heat index          81 82                   81 83                   82 84
Max heat               82    82                83    82                84    84
High Surf         Y  Y  Y  Y


Date          Sun 03/31/24  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          74    81      74    81      75    82      74    82
Temp          74 77 81 77   74 78 81 77   75 79 82 77   74 78 82 78
Dewpt         70 66 67 68   68 65 67 67   68 65 66 68   68 66 68 70
PWind dir        NE    NE      NE    NE       E    NE       E    NE
Wind char        BZ    BZ      BZ    BZ      BZ    BZ      BZ    GN
Avg clouds    SC SC SC SC   SC SC SC SC   SC FW FW FW   CL CL FW FW
PoP 12hr         20    20      10    40      10    10       0    10
Rain shwrs     S  S  S  S    S  S  C  C    S  S  S  S          S  S

$$
PRZ010-282000-
Eugenio Maria de Hosto Airport-Mayaguez PR
18.27N  67.15W Elev. 28 ft
503 AM AST Thu Mar 28 2024

Date             Thu 03/28/24            Fri 03/29/24            Sat 03/30/24
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      84          73          85          76          85
Temp             78 82 84 80 77 75 74 73 79 83 85 82 79 78 77 76 80 84 85 82 79
Dewpt            65 67 68 68 67 66 66 66 67 69 69 69 68 67 67 67 68 71 73 73 71
RH               64 61 59 67 71 74 76 79 67 63 59 65 69 69 71 74 67 65 67 74 77
Wind dir         NE NW NW NW  N  N  N  N  N NW NW  N  N  N NE NE NE NE NE NE NE
Wind spd          5  8 11  9  6  9  9  8  6 10 12 12  9 10  9 10  8  8  8  9 16
Clouds           CL CL CL FW CL CL CL CL FW FW CL CL CL CL FW FW FW FW SC SC SC
PoP 12hr                     10           5           5          20          30
QPF 12hr                   0.01           0           0        0.01        0.03
Rain shwrs                 S                                S  S  S  S  S  S  C
Heat index          85 87 83                87 89 85 82          83 89 92 87 82
Max heat               87    87                89    89          83    92    91
High Surf         Y  Y  Y  Y


Date          Sun 03/31/24  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          76    85      76    85      77    86      76    86
Temp          77 80 85 79   77 81 85 80   77 82 86 80   77 82 86 81
Dewpt         69 70 72 70   68 68 71 70   67 68 71 70   68 68 73 72
PWind dir        NE    NE      NE    NE       E    NE       E     E
Wind char        BZ    BZ      GN    GN      GN    GN      GN    LT
Avg clouds    SC SC SC SC   SC SC SC B1   FW FW SC SC   CL CL FW SC
PoP 12hr         30    40      10    50       5    40       0    20
Rain shwrs     C  C  C  C    S  S  C  C          C  C          S  S

$$
VIZ001-282000-
CYRIL E. King Airport-St Thomas USVI
18.33N  64.97W Elev. 23 ft
503 AM AST Thu Mar 28 2024

Date             Thu 03/28/24            Fri 03/29/24            Sat 03/30/24
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      83          78          85          76          85
Temp             79 82 83 81 80 79 78 78 81 84 85 82 79 78 77 76 80 84 85 82 80
Dewpt            66 67 67 68 69 69 69 69 68 70 70 70 69 69 69 68 69 69 71 70 71
RH               64 61 59 65 69 72 74 74 65 63 61 67 72 74 76 76 69 61 63 67 74
Wind dir         NW  W  W  W NW NW NW NW NW NW NW NW  N  N  N  N  N NE NE NE NE
Wind spd         10 10 11 14 17 16 17 16 13 10 12 12 12 13 16 14 11  9  9 11 14
Clouds           CL CL FW FW FW FW SC SC FW FW FW FW FW FW FW FW CL CL FW FW SC
PoP 12hr                     10          20          20           5          30
QPF 12hr                   0.02        0.03        0.01           0        0.02
Rain shwrs              S  S  S  S  S  S  S                             S  S  C
Heat index          84 86 84 82          84 88 89 85 82          83 88 90 86 83
Max heat               86    86    82    84    89    89          83    90    89
High Surf


Date          Sun 03/31/24  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          77    85      77    85      78    86      77    86
Temp          78 81 85 80   77 81 85 81   78 82 86 80   78 82 86 81
Dewpt         72 71 72 71   71 71 71 70   70 69 70 70   70 71 72 72
PWind dir        NE    NE      NE    NE      NE    NE       E     E
Wind char        BZ    BZ      BZ    BZ      BZ    GN      GN    GN
Avg clouds    SC SC SC SC   B1 B1 SC SC   SC SC SC SC   SC FW FW FW
PoP 12hr         30    40      40    20      20    20      10    10
Rain shwrs     C  C  S  C    C  C  S  S    S  S  S  S    S  S  S  S

$$
VIZ002-282000-
Henry E. Rohlsen Airport-St Croix USVI
17.70N  64.80W Elev. 74 ft
503 AM AST Thu Mar 28 2024

Date             Thu 03/28/24            Fri 03/29/24            Sat 03/30/24
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      84          74          84          76          86
Temp             78 83 84 81 78 76 75 74 79 83 84 81 79 77 77 76 81 85 86 83 80
Dewpt            66 66 66 67 69 69 68 67 67 68 68 67 68 68 68 68 67 67 68 68 69
RH               67 57 55 63 74 79 79 79 67 61 59 63 69 74 74 76 63 55 55 61 69
Wind dir          N NW  W  W  W NW NW NW NW  W  W NW  N  N  N  N  N NE NE NE NE
Wind spd         10  9 10 10  8  5 11 11 12 10 10 10  8 11 14 12 12 10 11 11 12
Clouds           CL FW FW FW FW FW SC SC FW SC FW FW FW FW FW FW CL CL CL CL SC
PoP 12hr                     10          20          20           5          30
QPF 12hr                   0.03        0.03        0.01           0        0.01
Rain shwrs           S  S  S  S  S  S  S  S  S                                C
Heat index          85 86 83                86 87 84             83 88 90 86 82
Max heat               86    86                87    86          83    90    89


Date          Sun 03/31/24  Mon 04/01/24  Tue 04/02/24  Wed 04/03/24
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          76    86      76    86      77    87      76    87
Temp          77 81 86 80   77 82 86 80   78 83 87 80   77 82 87 81
Dewpt         70 71 71 71   71 71 71 70   69 69 70 70   70 71 71 72
PWind dir        NE    NE      NE    NE      NE    NE       E     E
Wind char        BZ    BZ      BZ    BZ      BZ    GN      GN    GN
Avg clouds    SC B1 B1 SC   B1 B1 SC SC   SC SC SC SC   SC FW FW SC
PoP 12hr         40    40      40    20      20    20      10    10
Rain shwrs     C  C  C  C    C  C  S  S    S  S  S  S    S  S  S  S

$$


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