Point Forecast Matrices
Issued by NWS San Juan, PR

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FOCA52 TJSJ 230000 AAA
PFMSJU

POINT FORECAST MATRICES...UPDATED
NATIONAL WEATHER SERVICE SAN JUAN PR
800 PM AST Sun Oct 22 2017

PRZ001-230915-
LUIS MUNOZ MARIN INTERNATIONAL AIRPORT-SAN JUAN
18.43N  66.00W ELEV. 9 FT
800 PM AST Sun Oct 22 2017

DATE           10/22/17      MON 10/23/17            TUE 10/24/17            WED
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          87          75          88          76
TEMP             81 79 78 77 83 86 87 81 79 77 76 75 82 87 88 82 80 78 77 76 83
DEWPT            72 72 71 71 71 71 71 72 71 71 71 70 70 71 70 72 72 73 73 72 73
RH               74 79 79 82 67 61 59 74 77 82 85 84 67 59 55 72 77 85 87 87 72
WIND DIR          E  E SE SE  E  E  E  E  E SE SE SE  E  E  E  E  E SE SE SE  E
WIND SPD         12 11  9  8 11 13 13 12 10  8  6  8  8 11 13 13 10  9  8  6  8
CLOUDS           SC SC SC SC SC SC FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     30          30          20          20          30
QPF 12HR                   0.04        0.08        0.01        0.04        0.06
RAIN SHWRS        S  S  S  S  C  C  S  S  S  S  S  S  S  S  S  S  S  S  S  S  C
HEAT INDEX       83          88 93 95 87 84          88 95 96 88 84          89
MAX HEAT         87    83    88    95    94          88    96    95          89


DATE           10/25  THU 10/26/17  FRI 10/27/17  SAT 10/28/17  SUN 10/29/17
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      77    89      77    88      78    88      77    86
TEMP          89 81   78 84 89 81   78 83 88 81   79 84 88 80   78 82 86 80
DEWPT         73 74   73 73 74 73   73 73 73 73   73 74 74 74   73 73 73 72
PWIND DIR         E      SE     E       E     E       E    NE      NE    NE
WIND CHAR        GN      GN    GN      GN    GN      LT    GN      LT    LT
AVG CLOUDS    SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         30      30    30      30    30      30    30      20    20
RAIN SHWRS     C  S    C  C  C  S    S  C  C  S    S  C  C  S    S  S  S  S

$$

PRZ002-230915-
ROOSEVELT ROADS NAVAL AIRSTATION-CEIBA PR
18.25N  65.63W ELEV. 39 FT
800 PM AST Sun Oct 22 2017

DATE           10/22/17      MON 10/23/17            TUE 10/24/17            WED
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          88          76          88          76
TEMP             80 79 78 77 83 87 88 82 80 78 77 76 83 87 88 82 80 78 77 76 83
DEWPT            72 72 71 71 73 73 73 72 71 71 71 70 71 72 72 73 73 73 73 73 74
RH               77 79 79 82 72 63 61 72 74 79 82 82 67 61 59 74 79 85 87 90 74
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         14 13 11 11 12 13 13 11 11 11 10  9  9 10 11 11 11 11 10  9 10
CLOUDS           SC SC SC SC SC SC FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     30          30          30          30          30
QPF 12HR                   0.04        0.08        0.04        0.05        0.08
RAIN SHWRS        S  S  S  S  C  C  S  S  C  C  C  C  C  C  S  S  C  C  C  C  C
HEAT INDEX       83          88 94 96 87 84          89 96 96 88 84          90
MAX HEAT         85    83    88    96    94          89    96    95          90


DATE           10/25  THU 10/26/17  FRI 10/27/17  SAT 10/28/17  SUN 10/29/17
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      76    89      77    88      78    88      77    88
TEMP          89 80   77 83 89 81   78 83 88 81   79 84 88 80   78 83 88 80
DEWPT         75 74   74 74 75 73   74 74 74 73   74 74 75 74   74 74 74 73
PWIND DIR        SE      SE    SE       E     E      NE    NE      NE    NE
WIND CHAR        GN      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC   B1 SC SC SC
POP 12HR         30      30    30      30    30      30    30      30    20
RAIN SHWRS     C  S    C  C  C  S    C  C  C  C    C  C  C  C    C  C  S  S

$$

PRZ007-230915-
MERCEDITA AIRPORT-PONCE PR
18.02N  66.56W ELEV. 26 FT
800 PM AST Sun Oct 22 2017

DATE           10/22/17      MON 10/23/17            TUE 10/24/17            WED
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          89          69          90          71
TEMP             77 74 72 70 81 87 89 79 75 72 70 69 81 88 90 81 77 74 72 71 82
DEWPT            70 70 69 68 69 68 69 70 70 69 68 68 69 68 68 69 70 70 70 70 72
RH               79 87 90 93 67 53 52 74 84 90 93 97 67 52 49 67 79 87 93 97 72
WIND DIR         NE NE NE NE  E  E SE  E NE NE NE NE NE  E SE  E NE NE NE NE  E
WIND SPD         10  9 10 10 11 12 14 13  9  9 10 10 10 10 13 13  9  9  9  9 10
CLOUDS           FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC
POP 12HR                      5           5          10          20          30
QPF 12HR                      0           0           0        0.04        0.05
RAIN SHWRS                                S  S  S  S  S  S  S  S  S  S  S  S  S
HEAT INDEX                   84 91 93 83             86 94 96 84             86
MAX HEAT                     84    93    92          86    96    94          86


DATE           10/25  THU 10/26/17  FRI 10/27/17  SAT 10/28/17  SUN 10/29/17
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      72    91      72    91      73    91      73    89
TEMP          91 78   73 83 91 78   73 83 91 78   74 83 91 78   74 82 89 79
DEWPT         71 71   71 72 71 72   71 72 71 71   70 72 71 71   71 71 70 71
PWIND DIR        SE       E    SE      NE     E      NE    NE       N     E
WIND CHAR        GN      GN    GN      LT    LT      LT    LT      LT    LT
AVG CLOUDS    SC SC   SC SC SC SC   SC SC SC B1   SC SC SC SC   SC SC SC SC
POP 12HR         30      20    30      20    50      30    50      30    20
RAIN SHWRS     S  S    S  S  C  C    S  S  C  C    C  C  C  C    C  C  S  S
TSTMS                                      S  S          S  S

$$

PRZ008-230915-
RAFAEL HERNANDEZ AIRPORT-AGUADILLA PR
18.50N  67.13W ELEV. 237 FT
800 PM AST Sun Oct 22 2017

DATE           10/22/17      MON 10/23/17            TUE 10/24/17            WED
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          85          73          85          74
TEMP             78 77 76 75 81 84 85 79 77 75 74 73 80 84 85 80 77 76 75 74 80
DEWPT            72 71 71 70 71 72 72 72 72 72 70 69 70 69 70 72 72 72 71 71 72
RH               82 82 85 84 72 67 65 79 85 90 87 87 72 61 61 77 85 87 87 90 77
WIND DIR          E  E  E  E  E  E NE  E  E  E  E  E  E  E NE  E  E  E  E  E  E
WIND SPD         16 12 11 11 11 14 18 12 11 13 11 12 12 12 16 16 13 12 10 10 11
CLOUDS           FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC
POP 12HR                      5          10          10          30          20
QPF 12HR                      0        0.04           0        0.04        0.04
RAIN SHWRS                          S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
HEAT INDEX                   85 90 92 84             84 90 92 84             84
MAX HEAT                     85    92    91          84    92    90          84


DATE           10/25  THU 10/26/17  FRI 10/27/17  SAT 10/28/17  SUN 10/29/17
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    87      76    86      77    86      77    86
TEMP          85 79   77 82 87 79   77 82 86 80   78 82 86 80   78 82 86 80
DEWPT         71 71   72 71 74 74   72 73 74 73   73 73 74 74   73 73 74 73
PWIND DIR         E       E    NE      SE    NE       E    NE       E    NE
WIND CHAR        GN      LT    LT      LT    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC   FW FW SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         30      20    20      20    20      20    20      20    20
RAIN SHWRS     C  C    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

PRZ010-230915-
EUGENIO MARIA DE HOSTO AIRPORT-MAYAGUEZ PR
18.27N  67.15W ELEV. 28 FT
800 PM AST Sun Oct 22 2017

DATE           10/22/17      MON 10/23/17            TUE 10/24/17            WED
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                      72          88          70          88          72
TEMP             77 75 73 72 81 87 88 79 75 73 71 70 80 87 88 80 77 75 73 72 81
DEWPT            71 71 70 69 70 69 70 71 71 71 69 68 68 64 66 71 71 70 70 70 71
RH               82 87 90 90 69 55 55 77 87 93 93 93 67 46 48 74 82 84 90 93 72
WIND DIR          E  E  E  E  E  E  S SE  E  E  E  E  E  E SW SE SE  E  E NE  E
WIND SPD          9  8  8  9 10  9  8  6  5  9  9 11 10  5  6  5  8  8  8  8  8
CLOUDS           FW FW FW FW FW FW B1 B1 FW FW FW FW FW FW B1 B1 SC SC SC SC SC
POP 12HR                      5          50          10          50          20
QPF 12HR                      0        0.30           0        0.11        0.04
RAIN SHWRS                          C  C  S  S  S  S  S  S  C  C  S  S  S  S  S
TSTMS                               S  S                    S  S
HEAT INDEX                   85 91 92 83             85 92 93 83             85
MAX HEAT                     85    92    91          85    93    92          85


DATE           10/25  THU 10/26/17  FRI 10/27/17  SAT 10/28/17  SUN 10/29/17
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      72    90      73    89      76    89      75    89
TEMP          88 77   73 82 90 78   74 82 89 80   77 83 89 79   76 83 89 80
DEWPT         72 71   71 71 72 73   71 72 73 73   72 73 74 73   72 72 73 72
PWIND DIR        SE      SE    SE       E    NE       E    NE      NE    NE
WIND CHAR        LT      LT    LT      LT    LT      GN    LT      GN    LT
AVG CLOUDS    SC B1   FW FW SC B1   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         50      20    50      20    30      20    30      20    40
RAIN SHWRS     C  C    S  S  C  C    S  S  C  C    S  S  C  C    S  S  C  C
TSTMS          S  S          S  S                                      S  S

$$

VIZ001-230915-
CYRIL E. KING AIRPORT-ST THOMAS USVI
18.33N  64.97W ELEV. 23 FT
800 PM AST Sun Oct 22 2017

DATE           10/22/17      MON 10/23/17            TUE 10/24/17            WED
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          87          76          88          77
TEMP             80 79 78 77 83 86 87 82 79 78 77 76 83 87 88 83 80 79 78 77 82
DEWPT            72 72 72 72 71 72 72 71 72 72 71 71 71 71 72 73 73 74 74 73 73
RH               77 79 82 85 67 63 61 69 79 82 82 85 67 59 59 72 79 85 88 87 74
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 17 16 14 14 14 14 14 13 13 12 12 11 12 13 14 16 16 13 12 12
CLOUDS           SC SC SC SC SC SC FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     30          30          30          30          30
QPF 12HR                   0.04        0.08        0.04        0.04        0.08
RAIN SHWRS        S  S  S  S  C  C  S  S  C  C  C  C  C  C  S  S  C  C  C  C  C
HEAT INDEX                   88 94 95 89 84          89 92 94 89 86 84       89
MAX HEAT         84    84    88    95    94    84    89    94    92    84    89


DATE           10/25  THU 10/26/17  FRI 10/27/17  SAT 10/28/17  SUN 10/29/17
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      79    87      78    88      78    88      78    87
TEMP          86 81   79 83 87 81   79 84 88 81   79 84 88 81   79 83 87 81
DEWPT         74 74   74 74 73 74   74 73 73 74   74 74 74 74   73 73 73 73
PWIND DIR        SE      SE     E       E     E      NE    NE      NE    NE
WIND CHAR        GN      BZ    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         30      30    30      30    30      30    30      30    20
RAIN SHWRS     C  S    C  C  C  S    C  C  C  C    C  C  C  C    C  C  S  S

$$

VIZ002-230915-
HENRY E. ROHLSEN AIRPORT-ST CROIX USVI
17.70N  64.80W ELEV. 74 FT
800 PM AST Sun Oct 22 2017

DATE           10/22/17      MON 10/23/17            TUE 10/24/17            WED
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          88          75          88          76
TEMP             80 78 77 76 83 87 88 82 79 77 76 75 82 87 88 82 80 78 77 76 83
DEWPT            73 73 73 73 73 73 74 74 73 73 74 73 73 74 75 75 75 75 74 74 74
RH               79 85 87 90 72 63 63 77 82 87 94 94 74 65 66 79 85 91 90 94 74
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         16 14 13 12 14 14 14 13 13 13 12 12 12 13 14 13 14 14 13 12 13
CLOUDS           SC SC SC SC SC SC FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     30          30          30          30          30
QPF 12HR                   0.04        0.08        0.04        0.04        0.07
RAIN SHWRS        S  S  S  S  C  C  S  S  C  C  C  C  C  C  S  S  C  C  C  C  C
HEAT INDEX                   89 96 97 88             87 94 97 89 85          90
MAX HEAT         84          89    97    96          87    97    95          90


DATE           10/25  THU 10/26/17  FRI 10/27/17  SAT 10/28/17  SUN 10/29/17
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      75    89      75    89      78    88      76    87
TEMP          88 79   76 83 89 79   76 83 89 81   79 84 88 80   77 82 87 83
DEWPT         75 75   75 75 74 75   74 74 75 75   75 75 75 75   74 74 74 74
PWIND DIR         E       E     E       E     E      NE    NE      NE    NE
WIND CHAR        GN      BZ    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC   B1 SC SC SC
POP 12HR         30      30    20      30    30      30    30      30    20
RAIN SHWRS     C  S    C  C  S  S    C  C  C  C    C  C  C  C    C  C  S  S

$$


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