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Issued by NWS San Juan, PR

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FOCA52 TJSJ 170123
PFMSJU

POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN JUAN PR
923 PM AST Mon Oct 16 2017

PRZ001-170815-
LUIS MUNOZ MARIN INTERNATIONAL AIRPORT-SAN JUAN
18.43N  66.00W ELEV. 9 FT
923 PM AST Mon Oct 16 2017

DATE           10/16/17      TUE 10/17/17            WED 10/18/17            THU
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                      81          89          80          88          82
TEMP                81 82 81 83 84 89 84 81 81 81 80 83 84 85 83 82 83 83 84 85
DEWPT               77 76 76 77 76 77 76 76 76 75 75 75 76 76 75 75 74 74 74 75
RH                  88 82 85 82 77 68 77 85 85 82 85 77 77 75 77 79 74 74 72 72
WIND DIR             E SE SE SE SE  E  E  E  E SE SE SE SE SE SE  E  E  E  E  E
WIND SPD            11 11 11 13 13 12 12 11 12 11 11 12 13 13 10 10 14 14 14 16
CLOUDS              B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC
POP 12HR                     40          40          40          30          20
QPF 12HR                   0.15        0.39        0.26        0.22        0.02
SNOW 12HR                    MM          MM          MM
RAIN SHWRS           C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  S  S  S  S  S
TSTMS                S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
HEAT INDEX          88 89 87 92 93102 93 87 87 87 85 90 93 94 90 89 90 90 91 94
MAX HEAT               90    92   102    99    87    90    94    93    90    94
FLASH FLOOD          A  A  A  A  A  A  A  A  A  A  A  A  A  A  A


DATE           10/19  FRI 10/20/17  SAT 10/21/17  SUN 10/22/17  MON 10/23/17
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      83    87      82    87      81    87      81    88
TEMP          89 83   83 84 87 82   82 83 86 82   81 83 87 82   81 83 87 82
DEWPT         75 74   74 74 74 73   72 71 70 71   70 71 72 73   72 73 73 72
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        BZ      GN    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         20      10    20      10    20      10    20      10    20
RAIN SHWRS     S  S    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

PRZ002-170815-
ROOSEVELT ROADS NAVAL AIRSTATION-CEIBA PR
18.25N  65.63W ELEV. 39 FT
923 PM AST Mon Oct 16 2017

DATE           10/16/17      TUE 10/17/17            WED 10/18/17            THU
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                      82          85          80          84          82
TEMP                82 82 82 83 84 85 83 81 80 80 80 82 83 84 83 82 83 83 84 84
DEWPT               77 77 77 78 78 78 76 76 76 76 75 75 76 76 77 76 75 75 75 75
RH                  85 85 85 85 82 80 80 85 88 88 85 79 80 77 82 82 77 77 74 74
WIND DIR             E SE  E  E SE SE  E  E  E SE SE SE SE SE  E  E  E  E  E  E
WIND SPD            13 14 13 14 13 12 11 11 12 12 11 12 14 13 11 12 13 16 16 16
CLOUDS              B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC
POP 12HR                     40          30          50          30          20
QPF 12HR                   0.15        0.39        0.33        0.19        0.02
SNOW 12HR                    MM          MM          MM
RAIN SHWRS           C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  S  S  S  S  S
TSTMS                S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
HEAT INDEX          90 90 90 93 95 97 91 87 86 86 85 89 91 93 92 89 90 90 92 92
MAX HEAT               90    93    97    94    87    89    93    93    90    92
FLASH FLOOD          A  A  A  A  A  A  A  A  A  A  A  A  A  A  A


DATE           10/19  FRI 10/20/17  SAT 10/21/17  SUN 10/22/17  MON 10/23/17
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          87      83    86      81    85      81    86      81    86
TEMP          87 83   83 84 86 82   81 83 85 82   81 83 86 82   81 83 86 82
DEWPT         75 74   74 74 74 73   72 72 71 71   71 72 72 73   73 74 75 72
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        BZ      GN    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         20      10    20      10    20      10    20      10    20
RAIN SHWRS     S  S    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

PRZ007-170815-
MERCEDITA AIRPORT-PONCE PR
18.02N  66.56W ELEV. 26 FT
923 PM AST Mon Oct 16 2017

DATE           10/16/17      TUE 10/17/17            WED 10/18/17            THU
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                      79          87          78          87          80
TEMP                79 79 80 81 84 87 85 79 78 79 80 83 85 87 84 80 80 80 82 83
DEWPT               75 75 75 76 74 76 75 75 75 74 74 74 74 73 74 73 73 73 73 73
RH                  88 88 85 85 72 70 72 88 91 85 82 74 70 63 72 79 79 79 74 72
WIND DIR             E  E  E  E  E SE  E  E  E  E  E  E SE SE  E  E  E  E  E  E
WIND SPD             6  5  6 11 11 12  8  6  6  6  6  9 11 10  6  6  9  9  9 12
CLOUDS              SC SC SC FW FW SC SC FW FW FW FW OV OV SC SC SC SC SC SC B2
POP 12HR                     10          10           5          20          20
QPF 12HR                      0        0.01           0        0.05        0.01
SNOW 12HR                    MM          MM          MM
RAIN SHWRS           S  S  S        S  S                    S  S  S  S  S  S
TSTMS
HEAT INDEX                85 87 91 98 94          84 90 93 94 91 84 84 84 87 89
MAX HEAT               85    87    98    96          90    94    93    84    89
FLASH FLOOD          A  A  A  A  A  A  A  A  A  A  A  A  A  A  A


DATE           10/19  FRI 10/20/17  SAT 10/21/17  SUN 10/22/17  MON 10/23/17
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      79    89      77    89      77    89      77    89
TEMP          89 80   79 83 89 78   77 82 89 78   77 82 89 78   77 82 89 78
DEWPT         71 72   72 72 70 71   70 70 65 68   68 69 69 70   70 71 70 70
PWIND DIR         E       E     E       E     E       E     E      NE     E
WIND CHAR        GN      GN    GN      LT    GN      LT    GN      LT    GN
AVG CLOUDS    B2 SC   SC SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC B1
POP 12HR         10      10    10      10    20      10    10      10    30
RAIN SHWRS        S    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  C
TSTMS                                                                     S

$$

PRZ008-170815-
RAFAEL HERNANDEZ AIRPORT-AGUADILLA PR
18.50N  67.13W ELEV. 237 FT
923 PM AST Mon Oct 16 2017

DATE           10/16/17      TUE 10/17/17            WED 10/18/17            THU
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                      80          86          80          87          82
TEMP                81 80 80 82 85 84 86 83 81 80 80 83 85 87 85 83 83 82 83 83
DEWPT               76 75 76 76 76 76 77 76 76 75 74 75 75 76 76 75 74 74 74 74
RH                  85 85 88 82 75 77 75 80 85 85 82 77 72 70 75 77 74 77 74 74
WIND DIR             E  E  E  E  E  E  E  E  E  E  E SE  E  E  E  E  E  E  E  E
WIND SPD             9  9  8 10  8  8  8  9  8  8  6  5  5  8  9 13 10  8  9 11
CLOUDS              SC SC SC FW FW B1 B1 FW FW FW FW OV OV B1 B1 SC SC SC SC OV
POP 12HR                     10          40           5          40          20
QPF 12HR                      0        0.60           0        0.28        0.01
SNOW 12HR                    MM          MM          MM
RAIN SHWRS           S  S  S        C  C                    C  C  S  S  S  S
TSTMS                               S  S                    S  S
HEAT INDEX          87 85 86 89 94 93 97 91 87 85 84 90 94 98 94 90 90 88 90 90
MAX HEAT               89    89    94    97    89    90    98    96    90    90
FLASH FLOOD          A  A  A  A  A  A  A  A  A  A  A  A  A  A  A


DATE           10/19  FRI 10/20/17  SAT 10/21/17  SUN 10/22/17  MON 10/23/17
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      82    88      81    86      81    87      81    87
TEMP          89 83   82 83 88 83   81 82 86 83   81 82 87 83   81 82 87 83
DEWPT         75 74   73 73 74 73   72 72 72 70   70 70 73 72   72 72 74 73
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        GN      GN    GN      GN    GN      GN    BZ      GN    GN
AVG CLOUDS    OV B1   SC SC SC SC   SC SC SC B1   SC SC B1 B1   SC SC SC SC
POP 12HR         30      10    20      10    30      10    30      10    20
RAIN SHWRS        C    S  S  S  S    S  S  S  C    S  S  S  C    S  S  S  S
TSTMS             S                           S             S

$$

PRZ010-170815-
EUGENIO MARIA DE HOSTO AIRPORT-MAYAGUEZ PR
18.27N  67.15W ELEV. 28 FT
923 PM AST Mon Oct 16 2017

DATE           10/16/17      TUE 10/17/17            WED 10/18/17            THU
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                      78          88          79          87          80
TEMP                79 78 78 82 87 88 86 81 79 80 80 83 85 87 84 81 81 80 81 82
DEWPT               75 74 74 74 75 75 76 75 75 74 74 75 75 75 75 74 73 73 73 73
RH                  88 88 88 77 68 66 72 82 88 82 82 77 72 68 74 79 77 79 77 74
WIND DIR            SE  E  E  E SE SE  E  E SE SE SE SE SE SE  E  E SE  E  E  E
WIND SPD             6  6  5  5  8  8  4  5  5  6  8  6  6  9  6 10 11  9  8  9
CLOUDS              FW FW FW FW FW B1 B1 FW FW FW FW OV OV B1 B1 SC SC SC SC OV
POP 12HR                      5          40           5          40          20
QPF 12HR                      0        0.60           0        0.23        0.01
SNOW 12HR                    MM          MM          MM
RAIN SHWRS                          C  C                    C  C  S  S  S  S
TSTMS                               S  S                    S  S
HEAT INDEX                   88 96 98 96 87    84 84 90 94 96 92 86 86 84 86 87
MAX HEAT               85    88    98    98    85    90    96    95    86    87
FLASH FLOOD          A  A  A  A  A  A  A  A  A  A  A  A  A  A  A


DATE           10/19  FRI 10/20/17  SAT 10/21/17  SUN 10/22/17  MON 10/23/17
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          90      80    90      78    89      78    89      78    89
TEMP          90 81   80 83 90 81   78 81 89 81   78 81 89 81   78 81 89 81
DEWPT         72 73   72 72 71 72   71 71 69 68   69 69 70 72   71 72 72 71
PWIND DIR        SE       E     E       E     E       E     E       E     E
WIND CHAR        GN      GN    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    OV SC   SC SC SC SC   SC SC SC B1   SC SC B1 B1   SC SC SC B1
POP 12HR         20      10    20      10    30      10    30      10    30
RAIN SHWRS        S    S  S  S  S    S  S  S  C    S  S  S  C    S  S  S  C
TSTMS                                         S             S             S

$$

VIZ001-170815-
CYRIL E. KING AIRPORT-ST THOMAS USVI
18.33N  64.97W ELEV. 23 FT
923 PM AST Mon Oct 16 2017

DATE           10/16/17      TUE 10/17/17            WED 10/18/17            THU
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                      83          84          82          84          84
TEMP                83 84 83 83 84 84 83 82 82 82 83 83 83 83 84 84 85 85 85 85
DEWPT               77 77 77 77 77 77 77 76 76 75 75 75 76 76 76 76 76 75 74 74
RH                  82 80 82 82 80 80 82 82 82 79 77 77 80 80 77 77 75 72 70 70
WIND DIR             E  E  E  E SE  E  E  E  E SE  E SE SE SE  E  E  E  E  E  E
WIND SPD            19 19 18 19 18 17 14 18 19 20 20 20 21 19 17 17 19 23 21 21
CLOUDS              B1 B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC B1 B1 SC SC SC SC SC
POP 12HR                     40          30          50          30          20
QPF 12HR                   0.13        0.33        0.31        0.13        0.02
SNOW 12HR                    MM          MM          MM
RAIN SHWRS           C  C  C  S  S  C  C  C  C  C  C  S  S  C  C  S  S  S  S  S
TSTMS                S  S  S        S  S  S  S  S  S        S  S
HEAT INDEX          92 94 92 92 94 94 92 89 89 89 90 90 91 91 93 93 94 94 93 93
MAX HEAT               94    94    94    94    89    90    91    93    94    94


DATE           10/19  FRI 10/20/17  SAT 10/21/17  SUN 10/22/17  MON 10/23/17
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      84    85      84    84      83    84      83    84
TEMP          85 85   85 84 85 84   84 84 84 84   83 84 84 84   83 84 84 84
DEWPT         74 74   74 74 74 73   72 71 72 72   71 71 72 73   73 74 74 72
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        BZ      BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
AVG CLOUDS    SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         20      10    20      10    20      10    20      10    20
RAIN SHWRS     S  S    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

VIZ002-170815-
HENRY E. ROHLSEN AIRPORT-ST CROIX USVI
17.70N  64.80W ELEV. 74 FT
923 PM AST Mon Oct 16 2017

DATE           10/16/17      TUE 10/17/17            WED 10/18/17            THU
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                      84          85          83          85          85
TEMP                84 84 84 84 85 84 85 85 84 83 84 84 84 83 84 85 86 86 86 86
DEWPT               78 78 78 77 77 78 77 77 77 76 76 76 76 77 77 77 77 76 75 75
RH                  82 82 82 80 77 82 77 77 80 80 77 77 77 82 80 77 75 72 70 70
WIND DIR             E  E  E  E  E  E  E  E  E  E  E  E SE SE  E  E  E  E  E  E
WIND SPD            19 18 17 19 18 18 16 17 19 20 21 21 21 20 19 19 23 24 23 24
CLOUDS              B1 B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC B1 B1 SC SC SC SC SC
POP 12HR                     40          30          50          30          20
QPF 12HR                   0.13        0.15        0.31        0.13        0.02
SNOW 12HR                    MM          MM          MM
RAIN SHWRS           C  C  C  S  S  C  C  C  C  C  C  S  S  C  C  S  S  S  S  S
TSTMS                S  S  S        S  S  S  S  S  S        S  S
HEAT INDEX          95 95 95 94 96 95 96 96 94 91 93 93 93 92 94 96 97 96 95 95
MAX HEAT               96    95    96    96    96    93    93    96    97    96


DATE           10/19  FRI 10/20/17  SAT 10/21/17  SUN 10/22/17  MON 10/23/17
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      85    86      85    85      84    85      84    85
TEMP          86 86   86 85 86 85   85 85 85 85   84 85 85 85   84 85 85 85
DEWPT         76 75   75 75 75 75   73 72 73 73   73 73 74 75   75 75 75 73
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        BZ      BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
AVG CLOUDS    SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         20      10    10      10    20      10    20      10    20
RAIN SHWRS     S  S    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$



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