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Issued by NWS San Juan, PR

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FOCA52 TJSJ 201916
PFMSJU

POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN JUAN PR
316 PM AST Thu Jul 20 2017

PRZ001-210830-
LUIS MUNOZ MARIN INTERNATIONAL AIRPORT-SAN JUAN
18.43N  66.00W ELEV. 9 FT
316 PM AST Thu Jul 20 2017

DATE           07/20/17      FRI 07/21/17            SAT 07/22/17            SUN
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          80          89          80
TEMP          86 81 80 78 79 84 87 88 86 83 81 80 81 85 88 89 87 83 82 80 81 85
DEWPT         74 75 74 73 73 74 75 74 72 74 75 75 76 75 74 77 71 70 75 76 76 77
RH            68 82 82 85 82 72 68 63 63 74 82 85 85 72 63 68 59 65 79 88 85 77
WIND DIR      NE  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 16 11  8 14 16 17 14 12 12 11 11 12 16 17 17 13 13 12 10 12
CLOUDS        SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC
POP 12HR                     40          30          30          30          50
QPF 12HR                   0.03        0.12        0.05        0.05        0.08
RAIN SHWRS     S  C  C  C  C  C  C  C  C  C  C  C  C  S  S  C  C  C  C  C  C  C
OBVIS          H
HEAT INDEX    94 87 84       91 96 97 92 90 87 85 87 94 97102 93 87 89 86 87 96
MAX HEAT         96    87    91    98    96    89    94   102    99    89    96


DATE           07/23  MON 07/24/17  TUE 07/25/17  WED 07/26/17  THU 07/27/17
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    88      79    88      79    89      79    89
TEMP          89 83   80 85 88 82   79 82 88 81   79 82 89 80   80 82 89 81
DEWPT         73 76   73 74 74 74   73 75 74 75   75 75 74 75   75 75 75 75
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        BZ      GN    BZ      BZ    BZ      GN    GN      GN    GN
AVG CLOUDS    SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC   B1 B1 SC SC
POP 12HR         40      30    30      20    20      20    40      40    40
RAIN SHWRS     C  C    C  C  C  S    S  S  S  S    S  S  S  C    C  C  C  C

$$

PRZ002-210830-
ROOSEVELT ROADS NAVAL AIRSTATION-CEIBA PR
18.25N  65.63W ELEV. 39 FT
316 PM AST Thu Jul 20 2017

DATE           07/20/17      FRI 07/21/17            SAT 07/22/17            SUN
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          80          89          80
TEMP          87 82 81 79 80 85 88 89 87 83 82 80 81 85 88 89 87 83 82 80 81 85
DEWPT         75 73 74 74 73 75 76 75 76 75 77 76 76 76 77 76 70 72 75 77 77 77
RH            68 74 79 85 79 72 68 64 70 77 85 88 85 75 70 66 57 70 79 91 88 77
WIND DIR      NE  E  E  E  E  E NE  E  E  E NE  E  E  E  E  E  E NE  E  E  E  E
WIND SPD      17 16 17 14 14 16 16 13 12 13 14 14 13 12 13 14 14 13 16 13 12 13
CLOUDS        SC B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1
POP 12HR                     50          50          30          30          60
QPF 12HR                   0.05        0.04        0.06        0.04        0.11
RAIN SHWRS     S  C  C  C  C  C  C  S  S  C  C  C  C  C  C  S  S  L  L  L  L  C
OBVIS          H
HEAT INDEX    96 87 86    84 94 99 99 98 90 90 86 87 94100100 92 88 89 87 88 96
MAX HEAT         98    87    94   100    99    91    94   102    98    89    96


DATE           07/23  MON 07/24/17  TUE 07/25/17  WED 07/26/17  THU 07/27/17
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    89      80    89      79    88      79    88
TEMP          89 84   81 86 89 83   80 84 89 81   79 83 88 81   79 83 88 82
DEWPT         76 76   74 75 74 74   74 76 75 75   75 75 75 75   75 75 76 75
PWIND DIR         E       E     E       E     E       E     E       E    SE
WIND CHAR        BZ      BZ    BZ      BZ    BZ      GN    GN      GN    GN
AVG CLOUDS    SC SC   SC SC SC SC   SC SC SC SC   B1 B1 SC SC   B1 B1 SC SC
POP 12HR         40      30    30      20    30      30    50      50    50
RAIN SHWRS     C  S    C  C  C  S    S  S  S  C    C  C  C  C    C  C  C  C

$$

PRZ007-210830-
MERCEDITA AIRPORT-PONCE PR
18.02N  66.56W ELEV. 26 FT
316 PM AST Thu Jul 20 2017

DATE           07/20/17      FRI 07/21/17            SAT 07/22/17            SUN
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          92          75          92          75
TEMP          87 79 76 74 75 84 90 92 88 81 78 76 77 85 91 92 88 81 78 76 78 87
DEWPT         71 71 69 70 69 70 69 74 73 72 70 71 71 74 76 76 76 76 74 72 72 75
RH            59 77 79 87 82 63 50 56 61 74 76 85 82 70 62 60 68 85 88 87 82 68
WIND DIR      NE NE NE NE NE NE  E SE SE NE NE NE NE  E SE SE  E NE NE NE NE  E
WIND SPD      14 10  9  9 10 16 16 18 14  6  6  8  9 11 16 16 14  9 10  9  9 12
CLOUDS        SC FW FW SC SC SC SC SC SC FW FW FW FW SC SC SC SC SC SC SC SC SC
POP 12HR                     10          20           5          20          10
QPF 12HR                      0        0.02           0        0.03           0
RAIN SHWRS     S  S  S  S  S  S  S  S  S                    S  S  S  S  S  S  S
OBVIS          H
HEAT INDEX    93             88 95102 96 85          93103105 99 87          96
MAX HEAT         99          88   102   101    83    93   105   103    85    96


DATE           07/23  MON 07/24/17  TUE 07/25/17  WED 07/26/17  THU 07/27/17
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          95      74    93      75    93      76    94      76    94
TEMP          95 81   75 85 93 81   76 84 93 80   76 83 94 80   77 84 94 79
DEWPT         74 73   71 72 68 72   71 72 72 73   72 72 67 73   73 71 71 73
PWIND DIR        SE       E    SE       E    SE      NE     E       E    SE
WIND CHAR        BZ      GN    BZ      GN    BZ      GN    GN      LT    GN
AVG CLOUDS    SC SC   FW FW SC SC   FW FW FW SC   FW FW SC SC   SC SC SC SC
POP 12HR         30      20    30      10    30      10    30      20    20
RAIN SHWRS     C  C    S  S  S  S    S  S  C  C    S  S  S  S    S  S  S  S

$$

PRZ008-210830-
RAFAEL HERNANDEZ AIRPORT-AGUADILLA PR
18.50N  67.13W ELEV. 237 FT
316 PM AST Thu Jul 20 2017

DATE           07/20/17      FRI 07/21/17            SAT 07/22/17            SUN
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          86          81          87          79
TEMP          85 81 80 78 79 83 85 86 85 83 82 81 82 85 87 87 85 82 80 79 80 84
DEWPT         74 75 73 74 73 73 75 69 76 75 75 73 73 74 76 76 76 76 76 73 74 74
RH            70 82 79 88 82 72 72 57 75 77 79 77 74 70 70 70 75 82 88 82 82 72
WIND DIR      NE NE  E  E  E  E  E  E  E  E  E  E  E  E NE NE  S  E  E  E  E  E
WIND SPD      21 20 19 14 13 17 21 25 21 20 19 17 14 13 13 18 13 13 13 12 10 13
CLOUDS        SC FW FW SC SC SC SC B1 B1 SC SC SC SC SC SC B1 B1 SC SC SC SC B1
POP 12HR                      5          20          10          30          10
QPF 12HR                      0        0.01           0        0.18           0
RAIN SHWRS     S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  C  C  S  S  S  S  S
OBVIS          H
HEAT INDEX    93 87 84       89 94 90 94 90 89 86 87 93 98 98 94 89 86    84 91
MAX HEAT         98    86    89    94    94    89    93    98    98    87    91


DATE           07/23  MON 07/24/17  TUE 07/25/17  WED 07/26/17  THU 07/27/17
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          87      80    86      80    88      80    87      79    88
TEMP          87 82   80 84 86 82   80 82 88 83   80 83 87 83   79 81 88 84
DEWPT         77 76   73 74 75 74   73 74 76 75   74 74 77 75   74 74 76 75
PWIND DIR         E       E     E       E     E       E    NE       E    NE
WIND CHAR        GN      GN    BZ      BZ    BZ      GN    GN      GN    LT
AVG CLOUDS    B1 B1   FW FW FW SC   FW FW FW FW   FW FW FW SC   SC SC SC SC
POP 12HR         40      10    30      10    20      10    20      20    20
RAIN SHWRS     C  C    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

PRZ010-210830-
EUGENIO MARIA DE HOSTO AIRPORT-MAYAGUEZ PR
18.27N  67.15W ELEV. 28 FT
316 PM AST Thu Jul 20 2017

DATE           07/20/17      FRI 07/21/17            SAT 07/22/17            SUN
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          88          76          91          76
TEMP          85 79 76 75 76 82 87 88 85 80 78 76 78 85 90 91 87 81 79 77 78 86
DEWPT         73 73 72 71 70 72 71 73 74 72 72 71 71 73 74 75 76 76 77 73 72 74
RH            67 82 87 87 82 72 59 61 70 77 82 85 79 67 60 60 70 85 94 87 82 68
WIND DIR      NE NE NE NE NE  E  E NE NE NE NE NE  E  E SE SE  N NE  E  E NE  E
WIND SPD      16 11  8  6  9 13 12  5  4  1  5  6  8  9  5  8 20 10  8  9  8 10
CLOUDS        SC FW FW SC SC SC SC B1 B1 FW FW FW FW SC SC B1 B1 SC SC SC SC SC
POP 12HR                      5          50           5          40           5
QPF 12HR                      0        0.35           0        0.37           0
RAIN SHWRS     S                    C  C                    C  C              S
TSTMS                               S  S                    S  S
OBVIS          H
HEAT INDEX    92             87 93 96 93 84          92 99102 98 87          94
MAX HEAT         96          87    96    97          92   102   101    87    94


DATE           07/23  MON 07/24/17  TUE 07/25/17  WED 07/26/17  THU 07/27/17
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          93      76    90      75    92      76    91      75    92
TEMP          93 82   77 84 90 80   76 81 92 81   76 80 91 80   75 81 92 80
DEWPT         76 78   72 72 74 73   72 73 76 74   73 73 73 75   73 73 75 74
PWIND DIR        NE       E    NE      NE     E       E    NE       E    SE
WIND CHAR        GN      GN    GN      GN    LT      GN    LT      LT    LT
AVG CLOUDS    B1 B1   FW FW SC SC   FW FW SC SC   FW FW SC SC   FW FW SC SC
POP 12HR         40      10    40      10    50      10    40      10    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          S  S          S  S

$$

VIZ001-210830-
CYRIL E. KING AIRPORT-ST THOMAS USVI
18.33N  64.97W ELEV. 23 FT
316 PM AST Thu Jul 20 2017

DATE           07/20/17      FRI 07/21/17            SAT 07/22/17            SUN
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          88          80          90          80
TEMP          88 84 82 80 81 85 87 88 86 83 81 80 81 86 89 90 88 83 82 80 81 86
DEWPT         74 73 72 74 73 75 75 74 74 76 76 77 76 75 77 75 72 74 73 72 72 73
RH            63 70 72 82 77 72 68 63 68 80 85 91 85 70 68 62 59 74 74 77 74 65
WIND DIR      NE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E NE  E  E  E  E
WIND SPD      17 16 14 16 14 16 18 17 16 14 13 11 12 16 17 16 17 17 17 16 14 17
CLOUDS        SC SC SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1
POP 12HR                     50          50          20          20          60
QPF 12HR                   0.03        0.03        0.02        0.02        0.09
RAIN SHWRS     S  C  C  C  C  C  C  S  S  S  S  S  S  S  S  S  S  L  L  L  L  C
OBVIS          H
HEAT INDEX    97 90 87 84 86 94 96 97 94 91 87 87 87 95102101 95 90 87 84 85 93
MAX HEAT        101    89    94    98    97    89    95   103    99    90    93


DATE           07/23  MON 07/24/17  TUE 07/25/17  WED 07/26/17  THU 07/27/17
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      80    90      79    89      79    89      79    89
TEMP          90 83   80 86 90 83   79 84 84 88   79 84 89 80   80 80 89 82
DEWPT         74 72   74 74 74 75   74 75 75 76   75 75 75 76   74 75 76 76
PWIND DIR         E       E     E       E     E       E     E       E    SE
WIND CHAR        BZ      BZ    BZ      BZ    BZ      BZ    GN      BZ    GN
AVG CLOUDS    SC SC   SC SC SC SC   SC SC SC SC   B1 B1 SC SC   B1 B1 B1 SC
POP 12HR         40      30    30      30    30      30    50      50    50
RAIN SHWRS     C  S    C  C  C  S    S  S  S  C    C  C  C  C    C  C  C  C

$$

VIZ002-210830-
HENRY E. ROHLSEN AIRPORT-ST CROIX USVI
17.70N  64.80W ELEV. 74 FT
316 PM AST Thu Jul 20 2017

DATE           07/20/17      FRI 07/21/17            SAT 07/22/17            SUN
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          90          80          90          81
TEMP          88 82 80 79 80 85 89 90 88 83 82 80 81 86 89 90 88 84 83 81 82 86
DEWPT         74 75 74 74 74 68 74 74 75 76 77 76 75 77 77 76 76 74 75 74 73 74
RH            63 79 82 85 82 57 61 60 66 80 85 88 82 75 68 64 68 72 77 79 74 68
WIND DIR       E  E  E  E  E  E  E  E  E  E NE NE  E  E  E  E  E  E  E  E  E  E
WIND SPD      11 11 10 10 10 11 12 12 10  8  8  8 10 12 17 16 14 16 17 16 16 17
CLOUDS        SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1
POP 12HR                     50          50          20          20          60
QPF 12HR                   0.03        0.03        0.02        0.02        0.10
RAIN SHWRS     S  C  C  C  C  C  C  S  S  S  S  S  S  S  S  S  S  L  L  L  L  C
OBVIS          H
HEAT INDEX    97 89 84    84 88 98 99 98 91 90 86 87 97102102 99 91 90 86 87 94
MAX HEAT         99    89    88    99    99    91    97   103   102    91    94


DATE           07/23  MON 07/24/17  TUE 07/25/17  WED 07/26/17  THU 07/27/17
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    91      79    90      78    89      78    90
TEMP          89 83   80 87 91 83   79 80 90 79   88 88 88 88   88 79 90 81
DEWPT         73 73   75 75 75 75   75 76 76 76   76 75 76 77   76 76 76 77
PWIND DIR         E       E     E       E     E       E     E       E    SE
WIND CHAR        BZ      BZ    BZ      BZ    BZ      BZ    GN      BZ    GN
AVG CLOUDS    SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC   B1 B1 B1 SC
POP 12HR         40      30    30      20    30      30    50      50    50
RAIN SHWRS     C  S    C  C  C  S    S  S  S  S    S  S  S  C    C  C  C  C

$$



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