Area Forecast Matrices
Issued by NWS San Juan, PR

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451
FOCA52 TJSJ 170902
AFMSJU

Area Forecast Matrices
National Weather Service San Juan PR
502 AM AST Thu Jul 17 2025

PRZ001-172000-
San Juan and Vicinity-
Including the cities of Bayamon, Carolina, Catano, Guaynabo,
San Juan, Toa Alta, Toa Baja, and Trujillo Alto
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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                80 87 90    73 77 82    80 88 90    71 76 82    80 88 90
Temp             83 86 87 84 80 79 77 78 83 87 88 85 79 77 76 77 83 87 88 85 79
Dewpt            74 73 73 74 74 74 73 72 76 76 77 76 75 75 74 74 75 75 76 75 75
RH               74 65 63 72 82 85 87 82 80 70 70 75 88 94 94 90 77 68 68 72 88
Wind dir          E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd          9 13 13 12  9  8  8  6  8 12 13 11  8  6  6  5  6 11 13 12  8
Wind gust              24                                              24 23
Clouds           B1 B2 B1 SC SC B1 B1 B1 SC B2 SC SC SC SC B2 B2 B1 B1 B2 B2 B1
PoP 12hr                     50          40          60          60          60
QPF 12hr              0.22-0.70        0.11   0.05-0.12   0.06-0.31   0.64-0.84
Snow 12hr                    MM          MM          MM
Rain shwrs       SC SC SC SC IS SC SC SC IS NM SC SC SC SC NM NM SC SC NM NM SC
Tstms                  IS                                              IS IS IS
Obvis             H        H  H           H     H  H
Heat index       89 93 94 91 84 80       92 97 99 94 83          90 96 98 93 83
Max heat         93    99   100    89    97   108   107    90    94   108   107


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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          75    87      76    86      76    88      77    88
Temp          76 82 87 80   76 82 86 80   76 84 88 81   77 84 88 80
Dewpt         74 76 76 75   74 75 74 74   75 76 76 76   75 76 76 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      GN    GN
Avg clouds    B1 SC SC SC   SC SC SC B1   SC SC SC SC   CL FW SC SC
PoP 12hr         40    40      10    40      30    30       5    30
Rain shwrs    SC SC SC SC   IS IS SC SC   IS IS IS IS      IS SC SC
Tstms         IS

$$
PRZ002-172000-
Northeast-
Including the cities of Ceiba, Canovanas, Fajardo, Humacao,
Loiza, Luquillo, Naguabo, and Rio Grande
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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                74 85 90    66 77 82    74 85 90    65 75 82    75 87 92
Temp             82 85 85 83 79 78 77 78 82 84 85 83 79 77 76 77 82 86 87 84 79
Dewpt            74 74 74 74 74 74 73 72 75 75 75 75 74 74 73 73 74 74 74 75 74
RH               77 70 70 74 85 88 87 82 79 74 72 77 85 90 90 87 77 68 65 74 85
Wind dir          E  E  E  E  E  E  E  E  E  E  E  E NE  E  E  E  E  E  E  E  E
Wind spd         11 12 13 12 10 10 10  9 10 11 12 11  8  9  8  6  8 11 11 11  8
Wind gust        21          21 21 20                   19             21
Clouds           B2 B2 B2 B1 B1 B1 B2 SC SC B2 SC SC B1 B1 B2 B2 B1 B1 B2 B2 B1
PoP 12hr                     60          60          60          70          60
QPF 12hr              0.22-0.70        0.12        0.11   0.07-0.31   0.68-0.84
Snow 12hr                    MM          MM          MM
Rain shwrs       SC SC NM SC SC SC NM SC IS NM SC SC SC SC NM NM SC SC NM NM SC
Tstms                  IS IS                                           IS IS IS
Obvis                                  H  H
Heat index       88 92 93 90 83 80       88 93 94 90 82          89 94 95 92 84
Max heat         95   102   102    90    96   102   101    91    96   105   104


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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    85      76    87      77    87
Temp          76 82 86 79   76 81 85 79   76 83 87 80   77 83 87 80
Dewpt         73 75 75 74   73 74 73 73   74 75 75 74   74 75 76 74
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    GN      GN    GN      GN    BZ      GN    GN
Avg clouds    B1 B1 B1 B1   SC SC B1 B1   B1 B1 B1 SC   FW SC SC B1
PoP 12hr         50    50      30    50      40    40      30    40
Rain shwrs    SC SC SC SC   IS IS SC SC   SC SC SC IS   IS IS SC SC
Tstms         IS IS               IS IS

$$
PRZ003-172000-
Southeast-
Including the cities of Arroyo, Guayama, Maunabo, Patillas,
Salinas, and Yabucoa
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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                76 86 93    68 76 82    76 86 92    68 75 82    76 87 92
Temp             82 85 86 84 80 78 77 78 82 85 86 84 79 77 75 77 82 86 87 84 79
Dewpt            73 73 73 73 74 73 73 71 75 75 75 75 74 74 73 73 74 74 74 75 74
RH               74 67 65 70 82 85 87 79 79 72 70 74 85 90 94 87 77 68 65 74 85
Wind dir          E  E  E  E  E  E  E  E  E  E  E  E NE NE NE  E  E  E  E  E  E
Wind spd         10 13 13 11  9  9 10  8  9 11 12 11  9  8  6  6  8 11 12 11  8
Wind gust           26 26 24       20       24 25 21                24 27 25
Clouds           SC B1 B1 SC SC SC SC SC FW FW SC SC CL CL FW FW FW FW SC SC SC
PoP 12hr                     40          30          10           5          30
QPF 12hr              0.02-0.22   0.01-0.10   0.00-0.08   0.00-0.07   0.01-0.79
Snow 12hr                    MM          MM          MM
Rain shwrs       SC SC SC IS IS IS IS SC    IS IS IS       IS IS IS IS SC SC IS
Tstms                  IS IS                                           IS IS
Obvis             H  H     H  H  H  H  H  H  H  H  H
Heat index       87 92 93 90 83 80       89 94 95 91 82          88 94 96 92 83
Max heat         93   101   100    89    98   106   105    90    96   106   105


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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          75    86      76    85      76    87      77    87
Temp          76 82 86 79   76 81 85 79   76 83 87 80   77 83 87 80
Dewpt         73 75 75 74   74 74 73 73   74 75 75 75   74 75 76 74
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC SC B1 SC   SC FW FW SC   B1 B1 SC FW   CL FW SC SC
PoP 12hr         50    50      10    30      40    40      20    30
Rain shwrs    IS SC SC SC   IS IS IS SC   SC SC IS IS      IS SC SC

$$
PRZ004-172000-
Eastern Interior-
Including the cities of Aguas Buenas, Caguas, Cayey, Cidra,
Comerio, Gurabo, Juncos, Las Piedras, and San Lorenzo
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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                74 84 90    68 74 76    74 84 91    67 72 76    75 85 92
Temp             80 83 84 81 77 75 74 75 80 83 84 81 76 74 72 74 80 84 85 82 76
Dewpt            72 72 72 72 73 73 72 70 74 74 73 73 73 72 72 72 73 73 73 73 73
RH               77 70 67 74 87 94 93 84 82 74 70 77 90 93100 93 79 70 67 74 90
Wind dir          E  E  E  E  E  E  E  E  E  E  E  E NE NE  E  E  E  E  E  E  E
Wind spd          8 11 11 10  5  5  5  4  6 10 10  9  4  3  3  3  5 10 11 10  4
Clouds           SC B1 B1 SC SC B1 B1 SC FW SC SC SC FW FW B1 B1 SC SC B2 B2 FW
PoP 12hr                     50          40          20          30          60
QPF 12hr              0.16-0.70   0.05-0.11   0.01-0.12   0.00-0.31   0.02-0.80
Snow 12hr                    MM          MM          MM
Rain shwrs       SC SC SC IS IS SC SC SC IS IS IS IS IS IS SC SC IS IS NM NM IS
Tstms                  IS                                              IS IS
Obvis             H        H  H  H  H     H  H  H  H
Heat index       83 87 89 85             84 90 91 86             83 90 91 87
Max heat         91    98    98    85    95   103   102    85    94   103   102


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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          72    84      73    83      73    85      74    85
Temp          73 79 84 76   73 79 83 76   73 80 85 78   74 80 85 77
Dewpt         71 74 73 72   72 73 71 71   72 74 73 73   73 74 74 73
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    SC SC SC B1   SC FW SC B1   SC SC SC FW   FW FW SC B1
PoP 12hr         30    50      10    40      30    30       5    40
Rain shwrs    IS SC SC SC   IS IS SC SC   IS SC SC IS      IS SC SC
Tstms                                IS

$$
PRZ005-172000-
North Central-
Including the cities of Arecibo, Barceloneta, Dorado, Florida,
Manati, Vega Alta, and Vega Baja
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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 87 91    73 76 82    83 87 92    71 75 82    82 87 91
Temp             83 86 87 85 80 78 76 77 83 86 87 84 79 77 75 76 82 86 87 84 78
Dewpt            73 73 73 73 74 74 73 72 77 77 78 77 76 75 74 73 76 76 78 77 76
RH               72 65 63 67 82 88 90 85 82 75 75 80 91 94 97 90 82 72 75 80 94
Wind dir          E  E  E  E  E  E  E  E  E  E NE NE  E  E  E  E  E  E  E  E  E
Wind spd          9 14 17 16 11  9  8  8  8 13 16 13 11  9  8  5  6 12 14 11  8
Wind gust           26 31 29 24             24 27 24                   27 23
Clouds           SC B1 SC B1 FW B1 SC SC FW SC B1 B1 FW FW SC SC SC SC B2 B2 B1
PoP 12hr                     40          40          30          30          50
QPF 12hr              0.12-0.87   0.02-0.11   0.03-0.68   0.00-0.31   0.08-1.20
Snow 12hr                    MM          MM          MM
Rain shwrs       IS SC IS SC IS SC SC SC IS IS SC SC IS IS IS IS IS IS SC SC SC
Tstms                  IS IS                   IS IS                   IS IS IS
Obvis             H  H  H     H  H  H  H  H  H  H  H
Heat index       89 93 95 92 83          92 99101 94 82          89 97100 93 80
Max heat         93   101   100    89    99   112   112    91    95   111   110


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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    87      75    87      75    89      76    88
Temp          75 82 87 79   75 82 87 79   75 83 89 80   76 83 88 80
Dewpt         74 76 78 76   74 76 76 75   74 76 77 76   75 76 78 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    BZ      GN    BZ
Avg clouds    SC SC SC SC   CL FW SC SC   FW FW FW SC   CL FW SC SC
PoP 12hr         30    50       5    30       5    20       5    30
Rain shwrs    SC SC SC SC      IS SC SC   IS IS IS IS         SC SC
Tstms                  IS

$$
PRZ006-172000-
Central Interior-
Including the cities of Aibonito, Barranquitas, Ciales, Coamo,
Corozal, Jayuya, Morovis, Naranjito, Orocovis, and Villalba
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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                74 83 92    63 72 76    74 83 92    61 71 75    75 82 92
Temp             78 82 83 80 76 74 72 74 79 82 83 80 75 73 71 72 78 81 82 80 75
Dewpt            70 70 69 70 71 71 70 68 73 73 74 74 72 72 71 70 72 72 73 73 72
RH               76 67 63 72 85 90 93 82 82 74 74 82 90 97100 93 82 74 74 79 90
Wind dir          E  E  E  E  E  E  E  E  E  E  E  E NE NE  E  E  E  E  E  E  E
Wind spd          6 10 11 10  5  4  5  4  5  9 10  6  5  3  3  3  4  9 10  8  4
Wind gust           25 25 24                23 25                   24 27 23
Clouds           FW B1 B1 SC CL SC SC SC FW FW B1 B1 CL CL FW FW FW FW B2 B2 FW
PoP 12hr                     40          20          40           5          60
QPF 12hr              0.01-0.64   0.00-0.10   0.01-0.68   0.00-0.06   0.01-1.20
Snow 12hr                    MM          MM          MM
Rain shwrs          SC SC IS    IS IS IS    IS SC SC       IS IS IS IS NM NM IS
Tstms                  IS IS                   IS IS                   IS IS
Obvis             H     H  H  H  H  H  H  H  H
Heat index       80 85 86 83             81 87 88 83             80 86 88 83
Max heat         92   100    99    84    96   106   105    84    92   105   104


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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          71    82      71    82      71    84      72    84
Temp          71 77 82 75   71 78 82 75   71 79 84 76   72 79 84 76
Dewpt         70 73 74 72   71 72 70 70   71 73 73 72   71 73 73 71
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    FW FW SC SC   CL CL FW SC   FW FW SC SC   CL FW FW SC
PoP 12hr          5    50       0    30       5    30       0    40
Rain shwrs    IS IS SC SC         SC SC   IS IS IS IS         SC SC

$$
PRZ007-172000-
Ponce and Vicinity-
Including the cities of Guayanilla, Juana Diaz, Yauco, Penuelas,
Ponce, and Santa Isabel
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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                74 87 93    64 76 82    74 87 92    63 74 82    75 87 92
Temp             83 86 87 85 79 78 76 77 83 86 87 84 78 76 75 76 82 86 87 84 79
Dewpt            71 71 71 73 73 72 72 70 72 73 73 74 73 72 71 70 71 72 73 73 73
RH               67 61 59 67 82 82 87 79 70 65 63 72 85 87 87 82 69 63 63 70 82
Wind dir          E  E SE  E  E  E  E  E  E SE SE  E NE NE NE NE  E  E SE SE  E
Wind spd          5 13 13 12  9  5  6  6  6 11 12  9  5  5  4  3  5 11 11  9  6
Wind gust           28 28 28 21             25 27 21                25 27 25
Clouds           CL SC SC SC FW CL CL FW CL CL SC SC SC SC CL CL CL CL SC SC FW
PoP 12hr                     20           0          30          10          30
QPF 12hr              0.00-0.49           0   0.01-0.68        0.01   0.01-1.05
Snow 12hr                    MM          MM          MM
Rain shwrs          IS IS IS          IS       SC SC IS IS             IS IS IS
Tstms                  IS                      IS IS                   IS IS
Obvis             H  H  H  H  H  H  H  H  H  H  H  H
Heat index       87 92 94 91 83          87 93 95 91 81          86 92 94 90 82
Max heat         95   103   102    90    96   105   104    90    94   105   104


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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          75    86      75    86      75    88      75    88
Temp          75 81 86 79   75 82 86 78   75 83 88 80   76 83 88 79
Dewpt         71 72 74 72   71 71 71 71   70 72 72 72   71 72 73 72
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      GN    GN
Avg clouds    FW FW FW SC   CL CL FW SC   FW FW FW FW   CL FW FW SC
PoP 12hr          0    20       0    30       5     5       0    20
Rain shwrs    IS    IS IS         IS IS   IS IS IS IS         IS IS

$$
PRZ008-172000-
Northwest-
Including the cities of Aguadilla, Camuy, Hatillo, Isabela,
and Quebradillas
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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 87 93    71 75 82    83 86 92    70 74 82    83 86 92
Temp             82 86 87 84 79 77 75 76 81 85 86 83 78 76 74 75 81 85 86 83 77
Dewpt            73 72 74 74 74 74 73 72 75 75 76 75 74 74 73 72 74 74 76 75 74
RH               74 63 65 72 85 90 94 87 82 72 72 77 88 94 97 90 79 70 72 77 90
Wind dir          E  E  E  E  E  E  E  E  E  E NE NE  E  E  E  E  E  E  E  E  E
Wind spd         11 16 17 16 13 12 10  9  9 12 14 13 12 11 10  9  8 10 10  5  6
Wind gust           26 31 29 25 24 21       24 27 24 25 21 21       20 23 18
Clouds           FW SC SC B2 FW SC SC SC FW SC B1 B1 FW FW SC SC FW FW B2 B2 B1
PoP 12hr                     70          30          30           5          70
QPF 12hr              0.22-1.03   0.02-0.09   0.02-0.68        0.01   0.65-1.26
Snow 12hr                    MM          MM          MM
Rain shwrs          IS IS NM IS IS IS IS IS IS SC SC       IS IS IS IS NM NM SC
Tstms                     IS                   IS IS                   IS IS IS
Obvis             H  H  H     H  H  H  H  H  H  H  H
Heat index       87 93 96 92 81          88 94 97 90             86 94 97 90
Max heat         94   105   103    90    99   109   108    90    96   109   108


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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          73    86      73    86      73    88      74    88
Temp          74 81 86 77   74 81 86 78   74 82 88 79   75 82 88 79
Dewpt         73 74 77 75   73 74 75 74   72 74 76 75   73 74 76 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      GN    GN      GN    GN      GN    BZ
Avg clouds    B1 FW SC B1   CL CL SC SC   FW FW FW SC   FW FW SC SC
PoP 12hr         40    60       0    40       0    40       0    40
Rain shwrs    SC IS NM NM         SC SC         SC SC         SC SC
Tstms         IS    IS IS            IS                          IS

$$
PRZ009-172000-
Western Interior-
Including the cities of Adjuntas, Lares, Las Marias, Maricao,
Sabana Grande, San Sebastian, and Utuado
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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                74 84 93    66 72 76    74 83 92    64 70 74    75 83 92
Temp             79 83 84 81 76 74 72 73 79 82 83 80 75 73 71 72 78 82 83 80 75
Dewpt            70 69 70 72 72 71 70 69 72 73 75 73 73 72 71 69 72 72 74 72 72
RH               74 63 63 74 87 90 93 87 79 74 77 79 94 97100 90 82 72 74 77 90
Wind dir          E  E  E  E  E  E  E  E  E  E  E NE  E  E  E  E  E  E  E  E  E
Wind spd          5  8  6  5  5  5  5  4  4  6  5  5  5  5  4  4  4  5  3  2  3
Wind gust           27 26 23                23 23                   24
Clouds           CL SC B2 B2 FW FW FW FW CL FW B2 B2 FW FW FW FW CL CL OV OV FW
PoP 12hr                     70           5          70           0          80
QPF 12hr              0.05-1.06        0.01   0.05-0.70           0   0.05-1.22
Snow 12hr                    MM          MM          MM
Rain shwrs          IS NM NM IS IS    IS       NM NM IS IS              D  D IS
Tstms                  IS IS                   IS IS                   SC SC
Obvis             H  H        H  H  H  H  H  H
Heat index       81 87 89 85             81 88 90 84             80 87 90 84
Max heat         92   103   103    87    93   106   105    83    92   106   105


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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          71    83      71    83      71    85      71    85
Temp          71 78 83 75   71 78 83 75   71 79 85 76   72 80 85 76
Dewpt         71 72 74 72   70 71 72 71   70 72 73 72   71 72 73 72
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    FW FW SC B1   CL CL FW SC   FW FW SC SC   CL CL SC SC
PoP 12hr          0    60       0    50       0    50       0    50
Rain shwrs    IS    NM NM         SC SC         NM NM         SC SC
Tstms               IS IS         IS IS         IS IS         IS IS

$$
PRZ010-172000-
Mayaguez and Vicinity-
Including the cities of Aguada, Anasco, Hormigueros, Mayaguez,
Moca, Rincon, and San German
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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                77 90 93    70 75 82    76 88 92    68 74 82    75 88 92
Temp             84 88 90 86 80 78 76 77 83 87 88 85 79 76 74 76 82 87 88 85 79
Dewpt            72 72 74 74 75 74 73 72 75 76 77 76 75 74 73 71 74 75 76 75 75
RH               67 59 60 68 85 88 90 85 77 70 70 75 88 94 97 85 77 68 68 72 88
Wind dir          E  E  E  E  E  E  E  E  E  E  E NE  E  E  E  E  E  E  E  E  E
Wind spd          8  6  8  6  8  9  9  8  6  6  6  6 11 10  8  6  5  4  4  5  8
Wind gust        18 20 23 20 19 20 21 24 20 18 20 18 26 25 21    16 16       19
Clouds           CL FW B1 B2 SC FW FW FW CL FW B2 B2 SC SC FW FW CL CL B2 B2 B1
PoP 12hr                     70          30          60          30          70
QPF 12hr              0.02-1.06        0.03   0.02-0.70   0.00-0.09   0.05-1.26
Snow 12hr                    MM          MM          MM
Rain shwrs          IS NM  D SC                NM NM SC SC              D  D SC
Tstms                  IS IS                   IS IS                   SC SC IS
Obvis             H  H        H  H  H  H  H  H
Heat index       89 95 99 95 83          90 98101 94 81          88 96100 93 81
Max heat         95   105   104    92    97   111   110    91    96   111   110


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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    88      74    88      74    89      74    90
Temp          75 83 88 79   75 83 88 79   75 83 89 79   75 84 90 80
Dewpt         73 74 77 75   73 73 76 74   72 74 77 76   73 74 77 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    LT      LT    LT      GN    GN      GN    GN
Avg clouds    SC FW SC SC   FW FW FW SC   FW FW FW SC   FW FW SC SC
PoP 12hr         30    60       0    50       0    50       0    50
Rain shwrs    SC    NM NM   IS    SC SC         NM NM   IS    NM NM
Tstms         IS    IS IS         IS IS         IS IS         IS IS

$$
PRZ011-172000-
Southwest-
Including the cities of Cabo Rojo, Guanica, and Lajas
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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 91 93    71 76 82    84 90 92    70 74 82    83 90 92
Temp             85 90 91 88 81 78 76 77 85 89 90 86 79 77 75 76 84 89 90 87 80
Dewpt            72 73 75 75 76 74 73 73 74 76 76 76 76 74 72 71 73 75 76 75 75
RH               65 58 60 66 85 88 90 87 70 66 64 72 91 90 90 85 70 64 64 68 85
Wind dir          E SE SE  E  E  E  E  E  E SE SE  E  E NE NE  E  E SE SE  E  E
Wind spd          6 14 17 13 12 10 10 10  9 13 12  8  6  6  5  5  8 12 11  8  9
Wind gust           32 34 28 26 24 24 23 20 27 27                   27 25    19
Clouds           CL FW SC SC FW CL CL FW CL FW B1 B1 B1 B1 CL CL FW FW SC SC SC
PoP 12hr                     20           5          40          40          20
QPF 12hr              0.01-0.64        0.01   0.03-0.70        0.04   0.01-1.07
Snow 12hr                    MM          MM          MM
Rain shwrs          IS IS IS IS                SC SC SC SC             IS IS IS
Tstms                  IS                      IS IS
Obvis             H  H  H  H  H  H  H  H  H  H  H  H
Heat index       91 99102 97 86          91101103 97 83          90 99102 96 85
Max heat         94   105   104    91    94   109   108    91    94   106   105


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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          75    90      75    90      75    91      76    92
Temp          76 84 90 80   76 84 90 80   76 85 91 81   76 85 92 81
Dewpt         72 74 76 75   72 73 74 75   71 73 76 76   72 73 76 75
PWind dir         E    SE       E     E       E     E       E     E
Wind char        GN    GN      GN    GN      GN    BZ      GN    BZ
Avg clouds    FW FW FW FW   CL CL FW SC   FW FW FW FW   CL FW FW FW
PoP 12hr         10    10       0    20       0     5       0    10
Rain shwrs    IS    IS IS         IS IS         IS IS         IS IS

$$
PRZ012-172000-
Culebra-
Including the city of Culebra
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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 88 92          80    84 87 91    76 79 82    83 88 92
Temp             85 87 88 86 83 81 80 81 84 86 87 85 82 80 79 80 85 87 88 86 82
Dewpt            75 75 76 76 76 75 73 73 76 77 77 76 75 76 75 75 75 76 76 76 76
RH               72 68 68 72 80 82 79 77 77 75 72 75 79 88 88 85 72 70 68 72 82
Wind dir          E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd         18 17 17 17 19 18 17 16 14 16 14 14 16 16 14 13 13 13 12 14 14
Clouds           B1 SC SC SC B1 SC SC SC FW B1 SC SC SC SC B2 B2 B1 B1 B1 B1 B1
PoP 12hr                     50          30          40          60          40
QPF 12hr              0.09-0.22        0.07        0.05        0.29   0.07-0.68
Snow 12hr                    MM          MM          MM
Rain shwrs       SC SC SC IS SC IS IS IS IS SC IS IS IS IS NM NM SC SC SC SC SC
Obvis                H  H  H     H  H  H  H     H  H
Heat index       93 96 98 96 90 88 83 85 93 97 98 95 88 85 82 85 93 98 99 96 90
Max heat         96   105   105    93    97   105   104    93    98   105   104


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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          80    87      80    87      80    89      80    88
Temp          80 84 87 82   80 84 87 82   80 85 88 83   80 85 88 83
Dewpt         76 76 76 76   75 74 76 75   76 76 77 76   76 76 77 76
PWind dir         E     E       E     E       E     E       E     E
Wind char        BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    B1 B2 B1 SC   SC SC B1 SC   B1 B1 B1 SC   SC SC SC SC
PoP 12hr         50    50      40    40      40    40      20    20
Rain shwrs    SC SC SC SC   IS SC SC SC   SC SC SC IS   IS IS IS IS
Tstms         IS IS

$$
PRZ013-172000-
Vieques-
Including the city of Vieques
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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 87 90    76 79 82    84 87 90    75 78 82    83 89 92
Temp             84 87 87 85 82 80 79 80 83 86 87 85 81 79 78 79 85 88 89 86 82
Dewpt            75 75 75 75 75 75 73 73 75 75 74 75 74 75 74 74 74 74 74 74 74
RH               74 68 68 72 79 85 82 79 77 70 65 72 79 88 88 85 70 63 61 68 77
Wind dir          E  E  E  E  E  E  E  E  E  E  E  E NE  E  E  E  E  E  E  E  E
Wind spd         18 17 17 17 18 18 17 14 13 13 14 14 16 16 14 13 13 13 12 13 13
Clouds           B1 SC SC FW SC SC SC CL SC B2 SC SC FW FW B2 B2 B1 B1 B1 B1 B1
PoP 12hr                     40          20          60          60          40
QPF 12hr              0.02-0.22   0.03-0.11   0.03-0.11   0.07-0.28   0.03-0.80
Snow 12hr                    MM          MM          MM
Rain shwrs       SC IS IS IS IS IS IS    IS NM IS IS IS IS SC SC SC SC SC SC SC
Tstms                                                                  IS IS
Obvis             H  H  H  H  H  H  H  H  H     H  H
Heat index       92 96 97 94 88 85 80 82 91 95 95 92 86 83    82 92 97 98 95 88
Max heat         95   102   102    91    94   101    99    89    96   103   102


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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          78    88      79    86      79    89      79    89
Temp          79 84 88 82   79 83 86 81   79 85 89 82   79 85 89 82
Dewpt         74 75 74 74   74 73 73 74   75 75 74 75   75 75 75 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        BZ    GN      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    B1 B2 B1 B1   SC B1 B1 B1   B1 B1 SC SC   SC SC SC SC
PoP 12hr         50    50      40    40      40    40      30    30
Rain shwrs    SC SC SC SC   SC SC SC SC   SC SC SC IS   IS IS SC SC
Tstms         IS IS

$$
VIZ001-172000-
St.Thomas...St. John...and Adjacent Islands-
Including the cities of Anna`s Retreat, Charlotte Amalie,
Charlotte Amalie East, Charlotte Amalie West, and Cruz Bay
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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 85 91    71 79 82    84 85 91    71 78 82    83 85 90
Temp             83 85 85 84 81 80 79 80 82 84 85 83 80 79 78 79 82 84 85 83 81
Dewpt            74 74 75 75 74 73 73 72 75 75 75 75 75 75 75 74 75 75 75 75 75
RH               74 70 72 74 79 79 82 77 79 74 72 77 85 88 91 85 79 74 72 77 82
Wind dir          E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd         19 19 18 18 19 19 17 16 17 16 14 13 16 16 14 14 13 13 12 13 14
Clouds           SC SC SC SC SC SC SC SC FW SC FW FW SC SC B2 B2 SC SC B1 B1 SC
PoP 12hr                     30          30          30          50          30
QPF 12hr              0.03-0.10        0.05        0.05        0.09   0.03-0.10
Snow 12hr                    MM          MM          MM
Rain shwrs       IS IS IS IS IS IS IS IS IS SC IS IS SC SC SC SC IS IS SC SC SC
Obvis             H  H  H  H  H  H  H  H  H     H  H
Heat index       89 92 93 91 86 83 81 82 89 93 93 91 85 83 80 81 88 92 93 91 86
Max heat         96   103   103    92    98   105   104    91    97   103   103


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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          79    84      79    84      79    86      79    85
Temp          79 82 84 81   79 82 84 80   79 83 86 81   79 82 84 81
Dewpt         75 76 75 75   75 73 74 75   76 75 75 76   75 76 75 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    B1 B1 B1 SC   SC SC SC SC   SC SC SC SC   SC SC SC FW
PoP 12hr         50    40      30    30      20    20      20    20
Rain shwrs    SC SC SC IS   IS SC SC IS   IS IS IS IS   IS IS IS IS
Tstms         IS IS

$$
VIZ002-172000-
St Croix-
Including the cities of Christiansted, Frederiksted,
Frederiksted Southeast, and Grove Place
502 AM AST Thu Jul 17 2025

Date             Thu 07/17/25            Fri 07/18/25            Sat 07/19/25
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 87 93    76 79 82    84 86 92    75 78 82    83 88 92
Temp             84 86 87 85 82 81 79 80 83 85 86 84 81 79 78 79 84 87 88 85 82
Dewpt            75 75 75 74 72 72 71 70 75 75 75 75 74 75 75 74 75 75 75 75 74
RH               74 70 68 70 72 74 77 72 77 72 70 74 79 88 91 85 74 68 66 72 77
Wind dir          E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd         17 18 18 16 16 17 16 13 12 13 13 13 13 14 13 12 12 13 13 13 11
Clouds           SC SC SC SC CL SC FW FW FW SC SC SC FW FW B1 B1 SC SC B1 B1 B1
PoP 12hr                     30          20          10          40          50
QPF 12hr                   0.07        0.02   0.01-0.07   0.04-0.10   0.06-0.80
Snow 12hr                    MM          MM          MM
Rain shwrs       SC IS IS IS    IS IS IS IS IS IS IS IS IS SC SC SC SC SC SC SC
Tstms                                                                  IS IS
Obvis             H  H  H  H  H  H  H  H  H  H  H  H
Heat index       92 95 97 93 87 84 80 83 91 95 95 93 86 83    82 91 96 97 94 88
Max heat         96   106   104    89    97   106   105    90    97   106   104


Date          Sun 07/20/25  Mon 07/21/25  Tue 07/22/25  Wed 07/23/25
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          79    88      79    87      79    89      79    89
Temp          79 84 88 82   79 84 87 81   79 85 89 82   79 85 89 83
Dewpt         75 75 75 74   74 73 74 75   75 75 75 75   76 76 76 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    BZ      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    B1 B1 B1 SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr         40    40      20    20      20    10      20    20
Rain shwrs    SC SC SC IS   IS IS IS IS   IS IS IS IS   IS IS IS IS

$$