Point Forecast Matrices
Issued by NWS San Juan, PR

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2
000
FOCA52 TJSJ 172103
PFMSJU

Point Forecast Matrices
National Weather Service San Juan PR
503 PM AST Wed Apr 17 2024

PRZ001-180800-
Luis Munoz Marin International Airport-San Juan
18.43N  66.00W Elev. 9 ft
503 PM AST Wed Apr 17 2024

Date           04/17/24      Thu 04/18/24            Fri 04/19/24            Sat
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          84          76
Temp             79 78 77 76 80 83 84 81 78 77 76 76 80 83 84 82 79 78 76 76 80
Dewpt            73 73 72 72 73 73 74 74 73 73 72 72 73 73 74 73 73 73 72 71 72
RH               82 85 85 87 79 72 72 79 85 87 87 87 79 72 72 74 82 85 87 85 77
Wind dir          N NE NE NE NE NE NE NE NE NE  E NE NE NE NE NE NE NE NE NE NE
Wind spd          5  4  4  4  4  6  8  5  5  4  2  1  1  4  6  8  6  6  6  3  6
Clouds           B2 B2 SC SC SC SC FW CL SC SC SC SC SC SC B1 B1 SC SC SC SC SC
PoP 12hr                     50          20          10          40          30
QPF 12hr                   0.21        0.03        0.03        0.20        0.09
Rain shwrs        C  C  S  S  S  S        S  S  S  S  S  S  C  C  C  C  C  C  C
Tstms             S
Heat index       83          85 89 91 87             84 89 91 87             85
Max heat         88          85    91    91          84    91    91          85


Date           04/20  Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
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          84      76    84      77    86      78    86      78    85
Temp          84 79   76 80 84 80   77 82 86 81   78 82 86 81   78 82 85 81
Dewpt         74 73   73 73 75 74   74 74 76 75   74 74 76 75   74 74 75 74
PWind dir        NE       E     E       E     E       E     E       E     E
Wind char        GN      LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    B1 B1   B1 B1 B2 B2   B2 B2 B2 B2   B2 B2 B2 B2   B2 B2 B2 B2
PoP 12hr         50      50    60      60    60      60    60      40    60
Rain shwrs     C  C    C  C  L  L    C  L  L  L    C  L  L  L    C  C  L  L
Tstms                                      S  S       S  S  S          S  S

$$
PRZ002-180800-
Roosevelt Roads Naval Airstation-Ceiba PR
18.25N  65.63W Elev. 39 ft
503 PM AST Wed Apr 17 2024

Date           04/17/24      Thu 04/18/24            Fri 04/19/24            Sat
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          76          83          77
Temp             79 78 77 76 80 83 84 82 79 78 76 76 80 82 83 81 79 78 77 77 80
Dewpt            73 73 73 73 74 74 74 74 74 74 73 73 73 74 75 75 74 74 73 72 74
RH               82 85 87 90 82 74 72 77 85 88 90 90 79 77 77 82 85 88 87 85 82
Wind dir          N  N  N  N NE NE NE NE NE NE NE NE NE NE NE NE  N NE NE NE NE
Wind spd          8  6  5  5  4  5  5  5  5  5  3  2  2  4  4  9  9  9  9  5  8
Clouds           B2 B2 SC SC B1 SC SC SC SC SC SC SC SC SC SC SC B2 B2 B2 B2 B1
PoP 12hr                     60          40          20          50          50
QPF 12hr                   0.26        0.14        0.05        0.14        0.12
Rain shwrs        L  C  C  C  C  C  C  C  S  S  S  S  S  S  C  C  C  C  C  C  C
Tstms             S
Heat index       83          85 90 91 88             84 89 90 87 83          85
Max heat         89          85    91    91          84    90    90          85


Date           04/20  Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
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    83      78    84      78    84      78    84
Temp          83 79   77 80 83 80   78 81 84 80   78 81 84 80   78 81 84 80
Dewpt         75 74   74 75 76 75   74 75 76 75   75 76 76 75   75 75 76 74
PWind dir        NE      NE     E       E     E       E     E       E     E
Wind char        GN      LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 SC   B2 B2 B1 B2   B2 B2 B2 B2   B2 B2 B2 B2   B2 B2 B2 B2
PoP 12hr         50      50    50      60    60      60    60      60    60
Rain shwrs     C  C    C  C  C  C    C  L  L  L    L  L  L  L    L  L  L  L
Tstms                                      S  S    S  S  S  S    S  S  S  S

$$
PRZ007-180800-
Mercedita Airport-Ponce PR
18.02N  66.56W Elev. 26 ft
503 PM AST Wed Apr 17 2024

Date           04/17/24      Thu 04/18/24            Fri 04/19/24            Sat
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          86          74          85          73
Temp             78 76 74 74 80 85 86 83 78 76 75 75 80 84 85 82 77 75 74 74 80
Dewpt            70 69 68 68 68 68 70 70 70 69 68 67 68 68 70 70 69 69 69 68 68
RH               76 79 82 82 67 57 59 65 76 79 79 76 67 59 61 67 76 82 84 82 67
Wind dir         NE NE NE  N NE SE SE  E NE  N  N  N NE  E SE  E NE NE NE NE NE
Wind spd          4  4  4  3  3  9  8  5  3  4  3  3  2  6  6  1  4  5  5  4  3
Clouds           SC SC FW FW FW FW SC SC CL FW FW FW CL CL SC SC FW FW FW FW FW
PoP 12hr                     20          20           0          20           5
QPF 12hr                   0.06        0.08           0        0.06           0
Rain shwrs        S  S        S     S  S                    S  S
Tstms
Heat index                   83 88 91 87             83 87 90 85             82
Max heat         86          83    91    90          83    90    89          82


Date           04/20  Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
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      74    85      75    86      76    86      76    85
Temp          85 78   75 80 85 79   76 81 86 80   77 82 86 80   77 81 85 81
Dewpt         70 70   69 69 71 72   69 70 72 73   72 71 72 73   72 72 71 71
PWind dir        NE      NE     E      NE     E       E     E       E     E
Wind char        LT      LT    GN      LT    GN      LT    GN      LT    LT
Avg clouds    SC B1   SC SC SC SC   SC SC B1 B2   B1 B1 B2 B2   B2 B2 B2 B2
PoP 12hr         50      30    30      30    60      60    60      20    60
Rain shwrs     C  C    C  C  S  C    C  C  L  L    C  L  L  L    S  S  L  L
Tstms                                      S  S       S  S  S          S  S

$$
PRZ008-180800-
Rafael Hernandez Airport-Aguadilla PR
18.50N  67.13W Elev. 237 ft
503 PM AST Wed Apr 17 2024

Date           04/17/24      Thu 04/18/24            Fri 04/19/24            Sat
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          82          75          81          75
Temp             77 76 74 74 78 81 82 80 78 76 75 75 78 80 81 79 77 76 75 75 78
Dewpt            72 73 72 72 71 71 72 72 72 72 73 72 70 71 72 72 72 73 73 72 70
RH               85 90 93 93 79 72 72 77 82 87 94 90 76 74 74 79 85 90 94 90 76
Wind dir         NE NE NE NE NE NE NE NE NE  E  E  E  E NE NE NE NE NE NE  E  E
Wind spd         12 12 10 10 10 10 11 11 12 10  9  8  9 10 11 13 12 12 11 11 13
Clouds           B2 SC SC SC SC SC CL CL SC SC SC SC CL CL SC SC SC SC SC SC FW
PoP 12hr                     50          10          10          10           5
QPF 12hr                   0.13        0.02        0.02        0.01        0.01
Rain shwrs        C  C  S  S  S  S        S  S  S  S        S  S  S  S  S  S  S
Tstms             S
Heat index                      85 87 84                84 85 83
Max heat         83                87    86                85    85


Date           04/20  Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
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      75    82      75    83      76    83      76    82
Temp          81 77   75 79 82 78   75 79 83 79   76 80 83 79   76 79 82 78
Dewpt         72 72   73 71 73 73   74 72 74 74   74 72 74 74   74 72 74 73
PWind dir        NE       E    NE       E     E       E     E       E     E
Wind char        BZ      GN    BZ      GN    GN      LT    LT      LT    LT
Avg clouds    SC SC   FW FW SC SC   SC SC SC B1   SC SC B1 B2   SC SC B1 B2
PoP 12hr         30       5    30      10    50      30    60      20    60
Rain shwrs     C  C          C  C    S  S  C  C    S  C  L  L    S  S  L  L
Tstms                                                    S  S          S  S

$$
PRZ010-180800-
Eugenio Maria de Hosto Airport-Mayaguez PR
18.27N  67.15W Elev. 28 ft
503 PM AST Wed Apr 17 2024

Date           04/17/24      Thu 04/18/24            Fri 04/19/24            Sat
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          73          86          74
Temp             78 76 74 74 81 85 87 83 78 76 74 74 80 85 86 83 78 76 75 75 81
Dewpt            74 73 72 71 74 76 77 76 74 74 72 72 73 76 77 77 75 74 72 71 73
RH               88 90 93 90 79 75 72 80 88 94 93 93 79 75 75 82 91 94 90 87 77
Wind dir         NE NE NE NE NE NE NE NE NE NE NE NE NE NE  N NE NE NE NE NE NE
Wind spd         11  9  9  8  5  4  6  9 10  8  6  5  4  4  9 13 12 11 11  9 10
Clouds           SC SC CL CL CL FW FW SC CL FW CL CL FW FW SC SC CL CL CL CL FW
PoP 12hr                     20          10           5          20           0
QPF 12hr                   0.06        0.02           0        0.07           0
Rain shwrs        S  S                 S              S  S  S  S
Tstms
Heat index                   86 95 98 91             85 94 97 91             85
Max heat         91          86    98    98          85    97    97          85


Date           04/20  Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
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    86      74    87      75    87      75    87
Temp          86 78   75 81 86 78   75 81 87 79   76 82 87 79   76 82 87 81
Dewpt         77 74   73 74 78 76   73 75 78 76   74 75 78 76   74 75 78 76
PWind dir        NE       E     E       E     E       E     E       E    NE
Wind char        GN      GN    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC B1   SC SC SC B1   SC SC B1 B1   SC SC B1 B2   SC SC B1 B2
PoP 12hr         60      10    60      20    60      30    60      20    60
Rain shwrs     L  L    S  S  L  L       S  L  L    S  C  L  L    S  S  L  L
Tstms          S  S                        S  S          S  S          S  S

$$
VIZ001-180800-
CYRIL E. King Airport-St Thomas USVI
18.33N  64.97W Elev. 23 ft
503 PM AST Wed Apr 17 2024

Date           04/17/24      Thu 04/18/24            Fri 04/19/24            Sat
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          83          77          83          77
Temp             79 78 77 77 80 82 83 81 79 78 77 77 80 82 83 81 79 78 77 77 80
Dewpt            74 74 74 74 75 74 75 74 74 75 74 74 75 74 74 74 74 74 74 74 75
RH               85 88 90 90 85 77 77 79 85 91 90 90 85 77 74 79 85 88 90 90 85
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         10  9  9  8  6  5  5  6  9 10  6  4  3  3  3 10 11 12 13  8 10
Clouds           B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1
PoP 12hr                     40          30          20          40          40
QPF 12hr                   0.20        0.06        0.05        0.16        0.12
Rain shwrs        C  C  S  S  C  S  S  S  S  S  S  S  S  S  C  C  C  C  C  C  C
Tstms             S
Heat index       83          85 89 90 87 83          85 89 90 87 83          85
Max heat         87          85    90    90          85    90    89          85


Date           04/20  Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
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    83      78    83      78    83      78    83
Temp          83 79   77 80 83 80   78 81 83 80   78 81 83 80   78 81 83 80
Dewpt         75 75   75 75 76 76   75 76 76 76   76 76 76 75   75 75 75 74
PWind dir        NE       E     E       E     E       E     E       E     E
Wind char        GN      GN    GN      BZ    GN      BZ    GN      BZ    GN
Avg clouds    B1 SC   B2 B2 B2 B2   B2 B2 B2 B2   B2 B2 B2 B2   B2 B2 B2 B2
PoP 12hr         50      50    60      60    60      60    60      60    60
Rain shwrs     C  C    C  C  L  L    C  L  L  L    L  L  L  L    C  L  L  L
Tstms                                         S    S  S  S  S       S  S  S

$$
VIZ002-180800-
Henry E. Rohlsen Airport-St Croix USVI
17.70N  64.80W Elev. 74 ft
503 PM AST Wed Apr 17 2024

Date           04/17/24      Thu 04/18/24            Fri 04/19/24            Sat
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          86          77          86          77
Temp             81 79 78 78 82 85 86 83 80 79 78 78 82 85 86 83 80 79 78 78 82
Dewpt            74 73 74 73 74 74 74 74 74 73 73 73 74 74 74 74 74 73 73 72 74
RH               79 82 88 85 77 70 68 74 82 82 85 85 77 70 68 74 82 82 85 82 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          6  6  6  6  5  6  4  5  6  8  5  4  4  4  3  6  9 11 11  6  9
Clouds           SC B1 SC SC SC SC FW FW SC SC SC SC B1 B1 SC SC B1 B1 B1 B1 SC
PoP 12hr                     40          30          40          40          40
QPF 12hr                   0.20        0.05        0.06        0.06        0.11
Rain shwrs        S  C  C  S  C  S        S  S  S  S  C  C  S  S  C  C  C  C  C
Heat index       85          88 92 94 90 85          88 92 94 90 85          88
Max heat         91    84    88    94    94    84    88    94    93    84    88


Date           04/20  Sun 04/21/24  Mon 04/22/24  Tue 04/23/24  Wed 04/24/24
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    87      78    87      78    87      78    87
Temp          86 80   78 83 87 81   79 83 87 81   79 83 87 81   79 83 87 83
Dewpt         74 74   74 75 75 75   75 75 75 75   74 75 75 74   74 75 75 74
PWind dir        NE       E     E       E     E       E     E       E     E
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC SC   B1 B1 B1 B1   B2 B2 B2 B2   B2 B2 B2 B2   B2 B2 B2 B2
PoP 12hr         40      50    50      50    60      60    60      60    60
Rain shwrs     C  C    C  C  C  C    C  C  C  L    L  L  L  L    L  L  L  L
Tstms                                         S    S  S  S  S    S  S  S  S

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.