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Issued by NWS San Juan, PR

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FOCA52 TJSJ 202125
PFMSJU

POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN JUAN PR
525 PM AST Sun Aug 20 2017

PRZ001-210815-
LUIS MUNOZ MARIN INTERNATIONAL AIRPORT-SAN JUAN
18.43N  66.00W ELEV. 9 FT
525 PM AST Sun Aug 20 2017

DATE           08/20/17      MON 08/21/17            TUE 08/22/17            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                      79          89          79          89          79
TEMP             83 81 80 80 85 88 89 86 82 81 80 80 85 88 89 86 82 81 80 80 85
DEWPT            78 78 78 78 77 75 75 75 75 77 78 78 78 78 78 78 77 77 76 76 76
RH               85 91 94 94 77 66 64 70 79 88 94 94 80 72 70 77 85 88 88 88 75
WIND DIR         NE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E SE  S  E
WIND SPD         11 11 10  9 13 14 16 14 11 10  9 10 11 13 16 16 12  9  6  6  9
CLOUDS           B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC B1
POP 12HR                     40          40          40          30          30
QPF 12HR                   0.10        0.10        0.07        0.09        0.04
RAIN SHWRS        C  C  C  C  S  S  S  S  C  C  C  C  S  S  C  C  C  C  C  C  C
TSTMS             S  S  S  S
HEAT INDEX       93 89 87 87 96 98 99 95 89 88 87 87 97102103 98 90 88 86 86 94
MAX HEAT         99    91    96    99    99    89    97   103   103    90    94


DATE           08/23  THU 08/24/17  FRI 08/25/17  SAT 08/26/17  SUN 08/27/17
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    91      79    90      79    88      79    88
TEMP          89 82   80 86 91 83   80 86 90 83   80 85 88 82   80 85 88 82
DEWPT         75 76   77 78 76 76   77 77 74 76   75 76 77 76   77 76 75 76
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        GN      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    B1 B1   SC SC SC SC   SC SC SC FW   SC B1 SC SC   SC SC SC SC
POP 12HR         40      30    40      20    20      40    40      30    30
RAIN SHWRS     C  C    S  C  C  C    S  S  S  S    S  C  C  C    C  C  C  S
TSTMS          S  S

$$

PRZ002-210815-
ROOSEVELT ROADS NAVAL AIRSTATION-CEIBA PR
18.25N  65.63W ELEV. 39 FT
525 PM AST Sun Aug 20 2017

DATE           08/20/17      MON 08/21/17            TUE 08/22/17            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                      79          90          79          90          79
TEMP             82 81 80 80 86 89 90 87 83 81 80 80 86 89 90 87 83 81 80 80 86
DEWPT            78 78 78 78 77 75 75 75 76 77 78 78 78 78 78 78 77 76 76 75 75
RH               88 91 94 94 75 64 62 68 80 88 94 94 77 70 68 75 82 85 88 85 70
WIND DIR          E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E NE  E  E  E  E
WIND SPD         14 12 12 12 13 13 13 12 11 11 11 10 11 11 12 13 11  9  8  8 10
CLOUDS           B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC B1
POP 12HR                     50          50          50          30          40
QPF 12HR                   0.11        0.13        0.10        0.11        0.04
RAIN SHWRS        C  C  C  C  S  S  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C
TSTMS             S  S  S  S
HEAT INDEX       91 89 87 87 97 99101 96 91 88 87 87 98103105100 92 87 86 85 95
MAX HEAT         98    91    97   101    99    89    98   105   103    90    95


DATE           08/23  THU 08/24/17  FRI 08/25/17  SAT 08/26/17  SUN 08/27/17
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      79    90      79    90      79    89      79    89
TEMP          90 83   80 86 90 83   80 86 90 83   80 85 89 82   80 85 89 82
DEWPT         75 77   77 78 78 77   76 76 75 76   75 76 77 76   77 75 75 76
PWIND DIR         E       E     E       E     E      NE     E       E    SE
WIND CHAR        GN      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    B1 B1   SC B1 B1 SC   SC SC SC SC   SC B2 B1 SC   B1 B1 B1 SC
POP 12HR         40      40    40      30    30      40    40      40    40
RAIN SHWRS     C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C  C
TSTMS          S  S

$$

PRZ007-210815-
MERCEDITA AIRPORT-PONCE PR
18.02N  66.56W ELEV. 26 FT
525 PM AST Sun Aug 20 2017

DATE           08/20/17      MON 08/21/17            TUE 08/22/17            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                      73          91          73          89          73
TEMP             79 76 74 75 84 90 91 85 79 76 74 75 83 88 89 84 78 76 74 75 83
DEWPT            77 76 74 75 77 76 74 74 74 74 74 75 76 76 76 77 77 76 74 74 74
RH               94100100100 80 64 58 70 85 94100100 80 68 66 80 97100100 97 74
WIND DIR          E  E NE NE  E  E SE SE NE NE NE NE  E SE SE NE  N  N  N NE  E
WIND SPD          9  9  8  8 12 16 18 16  8  6  6  8 10 13 16  6  5  5  8  9  9
CLOUDS           SC SC SC SC SC SC SC SC FW FW FW FW FW FW B1 B1 SC SC SC SC SC
POP 12HR                     20          20           5          40          10
QPF 12HR                   0.04        0.08           0        0.15           0
RAIN SHWRS        S  S  S  S  S  S  S  S                    C  C  S  S  S  S  S
TSTMS                                                       S  S
HEAT INDEX                   94102101 93             91 99100 94             90
MAX HEAT         96          94   102    99          91   100    99          90


DATE           08/23  THU 08/24/17  FRI 08/25/17  SAT 08/26/17  SUN 08/27/17
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      73    89      73    89      73    88      73    88
TEMP          89 78   74 83 89 78   74 83 89 78   74 82 88 78   74 82 88 78
DEWPT         74 76   74 77 75 76   74 74 72 73   73 73 76 73   74 75 72 73
PWIND DIR        SE       E    SE      NE     E      NE    SE       E    SE
WIND CHAR        GN      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    B1 B1   SC SC SC SC   FW FW FW FW   FW SC SC SC   FW FW FW SC
POP 12HR         40      10    20      10    10      10    20      10    30
RAIN SHWRS     C  C    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  C
TSTMS          S  S

$$

PRZ008-210815-
RAFAEL HERNANDEZ AIRPORT-AGUADILLA PR
18.50N  67.13W ELEV. 237 FT
525 PM AST Sun Aug 20 2017

DATE           08/20/17      MON 08/21/17            TUE 08/22/17            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                      78          88          78          89          78
TEMP             81 80 79 79 84 87 88 85 81 80 79 79 85 88 89 86 82 80 79 79 84
DEWPT            74 77 78 78 78 77 75 75 75 76 76 77 78 78 78 78 78 78 77 75 74
RH               79 91 97 97 82 72 66 72 82 88 91 94 80 72 70 77 88 94 94 88 72
WIND DIR          E  E  E  E  E  E  E  E  E  E  E  E  E  E  S  E  E  E  E  E  E
WIND SPD         12 12 13 12 16 18 19 17 17 14 11  9 12 17 10 14 12 12 10  9 12
CLOUDS           SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 SC SC SC SC B1
POP 12HR                     10          20          20          30          20
QPF 12HR                      0        0.11        0.04        0.13        0.01
RAIN SHWRS                    S  S  S  S  S  S  S  S  S  S  C  C  S  S  S  S  S
TSTMS
HEAT INDEX       86 87       95 99 98 94 87 86       97102103 98 91 87       91
MAX HEAT         98    87    95    99    98    87    97   103   102    89    91


DATE           08/23  THU 08/24/17  FRI 08/25/17  SAT 08/26/17  SUN 08/27/17
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      78    87      78    87      78    88      78    88
TEMP          88 81   79 84 87 81   79 84 87 81   79 84 88 81   79 84 88 81
DEWPT         75 77   77 75 78 79   76 76 76 76   77 75 76 77   77 76 74 77
PWIND DIR         E       E     E       E     E       E    NE       E     E
WIND CHAR        GN      GN    GN      GN    GN      GN    GN      GN    LT
AVG CLOUDS    B1 B1   SC SC SC SC   FW FW FW FW   FW FW FW SC   SC SC SC B1
POP 12HR         50      10    50      10    20      10    10      10    40
RAIN SHWRS     C  C    S  S  C  C    S  S  S  S    S  S  S  S    S  S  S  C
TSTMS          S  S                                                       S

$$

PRZ010-210815-
EUGENIO MARIA DE HOSTO AIRPORT-MAYAGUEZ PR
18.27N  67.15W ELEV. 28 FT
525 PM AST Sun Aug 20 2017

DATE           08/20/17      MON 08/21/17            TUE 08/22/17            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          88          75          91          75
TEMP             79 77 76 76 83 87 88 84 79 77 76 77 85 90 91 86 80 78 76 77 86
DEWPT            74 76 76 76 76 76 76 77 77 76 75 76 76 77 77 78 78 78 76 74 73
RH               85 97100100 80 70 68 80 94 97 97 97 75 66 64 77 94100100 90 65
WIND DIR         NE NE NE NE  E NE  W  W  E  E NE NE  E  E SE NE  E  E NE NE NE
WIND SPD          8  6  6  6 10 10  4  4  3  9  8  8 10  9 12 13  8  8  5  5  5
CLOUDS           SC SC SC SC FW FW B1 B1 FW FW FW FW FW FW B2 B2 SC SC SC SC B1
POP 12HR                      5          50           5          50          10
QPF 12HR                      0        0.38           0        0.34           0
RAIN SHWRS                          C  C                    C  C  S  S  S  S  S
TSTMS                               S  S                    S  S
HEAT INDEX                   91 98 99 94             94103105 98 87          93
MAX HEAT         95          91    99    98          94   105   103          93


DATE           08/23  THU 08/24/17  FRI 08/25/17  SAT 08/26/17  SUN 08/27/17
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          92      75    90      75    90      75    91      75    91
TEMP          92 81   76 84 90 80   76 84 90 80   76 85 91 80   76 85 91 80
DEWPT         75 77   76 75 76 77   75 74 75 75   75 74 76 76   75 74 74 76
PWIND DIR         N       E     E       E    SW      NE     E      NE    SE
WIND CHAR        LT      LT    LT      LT    LT      GN    LT      LT    LT
AVG CLOUDS    B1 B1   SC SC SC B1   FW FW SC SC   FW FW SC B1   SC SC SC B1
POP 12HR         50      10    50      10    40      10    50      10    50
RAIN SHWRS     C  C    S  S  C  C    S  S  C  C    S  S  C  C    S  S  S  C
TSTMS          S  S          S  S          S  S          S  S             S

$$

VIZ001-210815-
CYRIL E. KING AIRPORT-ST THOMAS USVI
18.33N  64.97W ELEV. 23 FT
525 PM AST Sun Aug 20 2017

DATE           08/20/17      MON 08/21/17            TUE 08/22/17            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                      81          90          81          90          81
TEMP             83 82 81 82 87 89 90 87 84 83 82 82 87 89 90 87 84 83 82 82 86
DEWPT            78 79 78 77 76 76 76 76 77 78 79 79 78 78 78 77 77 77 76 76 76
RH               85 91 91 85 70 66 64 70 80 85 91 91 75 70 68 72 80 82 82 82 72
WIND DIR          E  E  E  E  E  E  E  E  E  E  E  E  E  E  E NE  E  E  E  E  E
WIND SPD         16 17 16 14 14 16 14 14 14 16 13 13 13 13 13 14 12 13 10 10 10
CLOUDS           B1 B1 B1 B1 SC SC SC SC B2 B2 B2 B2 SC SC SC SC SC SC SC SC SC
POP 12HR                     50          50          50          30          30
QPF 12HR                   0.12        0.13        0.10        0.10        0.03
RAIN SHWRS        C  C  C  C  S  S  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C
TSTMS             S  S  S  S
HEAT INDEX       93 92 89 90 98100102 98 94 93 92 92100103105 99 94 92 89 89 96
MAX HEAT         98    94    98   102   102    93   100   105   105    92    96


DATE           08/23  THU 08/24/17  FRI 08/25/17  SAT 08/26/17  SUN 08/27/17
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      81    90      81    91      81    89      81    90
TEMP          89 84   81 87 90 84   82 87 91 84   82 86 89 84   81 87 90 84
DEWPT         76 78   78 78 78 78   77 77 76 76   76 77 78 77   77 76 77 77
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        GN      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC   SC B1 B1 SC   SC SC FW FW   SC B1 B1 SC   SC SC SC SC
POP 12HR         30      40    40      10    20      40    40      30    30
RAIN SHWRS     C  C    C  C  C  S    S  S  S  S    S  C  C  C    C  C  C  S

$$

VIZ002-210815-
HENRY E. ROHLSEN AIRPORT-ST CROIX USVI
17.70N  64.80W ELEV. 74 FT
525 PM AST Sun Aug 20 2017

DATE           08/20/17      MON 08/21/17            TUE 08/22/17            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                      80          90          80          90          80
TEMP             83 82 81 81 86 89 90 87 83 82 81 81 86 89 90 87 83 82 81 81 86
DEWPT            78 78 78 78 78 77 77 77 78 78 79 79 79 79 78 77 78 78 78 78 78
RH               85 88 91 91 77 68 66 72 85 88 94 94 80 73 68 72 85 88 91 91 77
WIND DIR          E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E NE  E  E  E  E
WIND SPD         14 16 13 12 13 14 13 13 12 13 10 12 12 13 14 14 12 13 10 10 12
CLOUDS           B1 B1 B1 B1 SC SC SC SC B2 B2 B2 B2 SC SC SC SC SC SC SC SC B1
POP 12HR                     50          50          50          30          40
QPF 12HR                   0.12        0.13        0.10        0.09        0.04
RAIN SHWRS        C  C  C  C  S  S  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C
TSTMS             S  S  S  S
HEAT INDEX       93 91 89 89 98102103 99 93 91 90 90100105105 99 93 91 89 89 98
MAX HEAT        100    93    98   103   103    93   100   106   105    93    98


DATE           08/23  THU 08/24/17  FRI 08/25/17  SAT 08/26/17  SUN 08/27/17
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      80    90      80    92      80    90      80    91
TEMP          89 83   81 86 90 83   81 87 92 84   81 86 90 83   81 87 91 84
DEWPT         78 78   78 78 78 78   78 77 77 76   77 77 77 76   77 77 77 76
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        GN      GN    GN      GN    GN      GN    BZ      BZ    BZ
AVG CLOUDS    B1 B1   B1 B1 SC FW   SC SC SC SC   SC B1 SC SC   B1 B1 B1 SC
POP 12HR         50      50    40      10    30      40    40      40    40
RAIN SHWRS     C  C    C  C  C  S    S  S  S  C    C  C  C  C    C  C  C  S

$$



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