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Issued by NWS San Juan, PR

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FOCA52 TJSJ 111508 AAA
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POINT FORECAST MATRICES...UPDATED
NATIONAL WEATHER SERVICE SAN JUAN PR
1108 AM AST Mon Dec 11 2017

PRZ001-112015-
LUIS MUNOZ MARIN INTERNATIONAL AIRPORT-SAN JUAN
18.43N  66.00W ELEV. 9 FT
1108 AM AST Mon Dec 11 2017

DATE             MON 12/11/17            TUE 12/12/17            WED 12/13/17
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          74          86          75          86
TEMP                   84 79 77 76 75 74 79 85 86 81 78 77 76 75 79 85 86 80 77
DEWPT                  68 67 68 69 68 68 69 68 68 70 68 68 69 69 70 69 69 71 70
RH                     59 67 74 79 79 82 72 57 55 69 71 74 79 82 74 59 57 74 79
WIND DIR               NE NE NE NE  N  N SE NE NE  E SE SW  N  N  S  E NE NE  N
WIND SPD                8  6  4  4  2  1  2  6  9  6  3  2  1  1  1  4  6  6  3
CLOUDS                 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     20          20          30          10          30
QPF 12HR                   0.03        0.03        0.04        0.01        0.05
RAIN SHWRS              S  S  S  S  S  S  S  S  C  C  S  S  S  S  S  S  C  C  S
HEAT INDEX             87                   88 89 85                89 90 83
MAX HEAT               88    85                89    88                90    88


DATE          THU 12/14/17  FRI 12/15/17  SAT 12/16/17  SUN 12/17/17
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    85      74    86      76    86      76    84
TEMP          75 78 85 77   75 79 86 79   77 80 86 79   77 79 84 78
DEWPT         69 70 71 70   70 71 71 72   71 72 73 73   71 71 71 72
PWIND DIR        NE     E       E     E       E    NE      NE     E
WIND CHAR        LT    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC SC FW   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         20    20      20    20      20    20      20    20
RAIN SHWRS     S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

PRZ002-112015-
ROOSEVELT ROADS NAVAL AIRSTATION-CEIBA PR
18.25N  65.63W ELEV. 39 FT
1108 AM AST Mon Dec 11 2017

DATE             MON 12/11/17            TUE 12/12/17            WED 12/13/17
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                      85          72          85          70          85
TEMP                   85 79 76 74 73 72 77 84 85 78 74 73 71 70 76 83 85 79 76
DEWPT                  69 69 69 70 69 69 70 69 69 68 68 69 69 69 70 70 71 72 70
RH                     59 72 79 87 87 90 79 61 59 71 82 87 93 97 82 65 63 79 82
WIND DIR               NE NE NE NE  N  E  E  E  E SE SE SW SW SW  S  S  S SW  W
WIND SPD                3  5  6  6  6  5  6  4  4  5  6  6  5  4  4  5  5  6  6
CLOUDS                 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     20          20          20          20          30
QPF 12HR                   0.05        0.03        0.03        0.01        0.05
RAIN SHWRS              S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  C  C  S
HEAT INDEX             89                   88 89                   87 90
MAX HEAT               90    87                89    87                90    88


DATE          THU 12/14/17  FRI 12/15/17  SAT 12/16/17  SUN 12/17/17
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    85      75    85      75    85      76    84
TEMP          73 77 85 78   76 79 85 78   76 79 85 79   77 79 84 78
DEWPT         70 72 71 70   71 71 71 72   72 73 73 73   71 72 72 72
PWIND DIR         S     E       E     E      NE    NE      NE     E
WIND CHAR        LT    GN      GN    GN      GN    GN      BZ    BZ
AVG CLOUDS    SC SC SC FW   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         20    20      20    20      20    20      10    10
RAIN SHWRS     S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

PRZ007-112015-
MERCEDITA AIRPORT-PONCE PR
18.02N  66.56W ELEV. 26 FT
1108 AM AST Mon Dec 11 2017

DATE             MON 12/11/17            TUE 12/12/17            WED 12/13/17
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                      85          67          84          71          88
TEMP                   84 76 72 70 68 67 74 82 84 78 75 73 72 71 78 86 87 78 73
DEWPT                  67 68 65 64 66 67 67 67 68 68 67 67 67 67 68 69 69 69 69
RH                     57 76 79 81 93100 79 61 59 71 76 81 84 87 71 57 55 74 87
WIND DIR               SE SE NE NE NE NE NE  S  S  S  E  N NE  N NE  E  S  E NE
WIND SPD                6  3  3  2  3  2  4  4  6  4  3  2  2  2  4  5  5  4  3
CLOUDS                 B1 B1 FW FW FW FW FW FW SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     40          10          20          10          20
QPF 12HR                   0.07           0        0.04        0.01        0.04
RAIN SHWRS              C  C           S  S  S  S  S  S  S  S  S  S  S  S  S  S
HEAT INDEX             87                   85 87                   90 91
MAX HEAT               88    85                87    85                92    89


DATE          THU 12/14/17  FRI 12/15/17  SAT 12/16/17  SUN 12/17/17
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          67    85      67    87      69    86      69    85
TEMP          68 74 84 72   68 75 86 74   70 76 85 74   70 75 84 73
DEWPT         68 69 70 69   67 69 67 69   69 70 68 70   69 69 66 69
PWIND DIR        NE     E      NE     E      NE    NE      NE    NE
WIND CHAR        LT    LT      LT    GN      LT    GN      LT    GN
AVG CLOUDS    SC SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         20    20      10    10      10    10      10    10
RAIN SHWRS     S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

PRZ008-112015-
RAFAEL HERNANDEZ AIRPORT-AGUADILLA PR
18.50N  67.13W ELEV. 237 FT
1108 AM AST Mon Dec 11 2017

DATE             MON 12/11/17            TUE 12/12/17            WED 12/13/17
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          73          82          72          85
TEMP                   84 79 76 75 74 73 77 81 82 77 75 74 73 72 77 84 85 79 76
DEWPT                  71 70 68 67 67 68 68 66 68 68 69 69 69 68 68 68 70 71 70
RH                     65 74 76 76 79 84 74 60 63 74 82 84 87 87 74 59 61 77 82
WIND DIR               NE  E  E  E  E  E  E NE NE  E SE  S SE SE  S  E NE NE  E
WIND SPD               10  8  4  6  6  4  3  3  6  8  3  4  6  4  2  4  6  5  2
CLOUDS                 SC SC SC SC SC FW FW FW SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     30          20          20          10          20
QPF 12HR                   0.04        0.02        0.03        0.01        0.04
RAIN SHWRS              S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
HEAT INDEX             89                   83 85                   87 90
MAX HEAT               89    86                85    83                90    88


DATE          THU 12/14/17  FRI 12/15/17  SAT 12/16/17  SUN 12/17/17
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    82      72    83      74    83      74    83
TEMP          73 76 82 75   73 76 83 77   75 78 83 77   75 78 83 76
DEWPT         70 70 72 72   69 70 70 72   71 71 73 72   72 71 70 71
PWIND DIR         E    NE       E     E       E    NE       E     E
WIND CHAR        LT    GN      GN    GN      GN    BZ      BZ    BZ
AVG CLOUDS    SC SC FW FW   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         10    10      10    10      10    10      20    20
RAIN SHWRS     S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

PRZ010-112015-
EUGENIO MARIA DE HOSTO AIRPORT-MAYAGUEZ PR
18.27N  67.15W ELEV. 28 FT
1108 AM AST Mon Dec 11 2017

DATE             MON 12/11/17            TUE 12/12/17            WED 12/13/17
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                      85          69          83          71          86
TEMP                   85 77 74 72 70 69 75 81 83 77 74 73 72 71 77 84 85 78 74
DEWPT                  71 70 68 66 66 66 67 66 68 69 69 68 68 68 68 70 71 71 70
RH                     63 79 82 81 87 90 76 60 61 76 84 84 87 90 74 63 63 79 87
WIND DIR               NE NE NE NE NE NW  E  E  W NW NW NE SE SW  E  S  W  N NE
WIND SPD               10  5  4  4  4  3  2  2  3  4  3  3  3  3  2  2  3  3  3
CLOUDS                 B1 B1 SC SC SC FW FW FW SC SC SC SC SC SC SC SC B1 B1 SC
POP 12HR                     30           5          30          10          30
QPF 12HR                   0.06           0        0.03        0.01        0.05
RAIN SHWRS              C  C  S  S  S           C  C  S  S  S  S  S  S  C  C  S
HEAT INDEX             90                   83 86                   88 90
MAX HEAT               90    86                86    84                91    88


DATE          THU 12/14/17  FRI 12/15/17  SAT 12/16/17  SUN 12/17/17
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          69    83      69    84      71    84      71    84
TEMP          70 75 83 73   70 75 84 75   72 76 84 75   72 76 84 74
DEWPT         70 69 71 71   68 69 68 70   70 70 72 71   71 70 69 70
PWIND DIR         E    NE       E     E       E    NE      NE    NE
WIND CHAR        LT    LT      LT    LT      GN    GN      GN    GN
AVG CLOUDS    SC SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         10    30      10    20      10    20      10    30
RAIN SHWRS     S  S  C  C    S  S  S  S    S  S  S  S    S  S  C  C

$$

VIZ001-112015-
CYRIL E. KING AIRPORT-ST THOMAS USVI
18.33N  64.97W ELEV. 23 FT
1108 AM AST Mon Dec 11 2017

DATE             MON 12/11/17            TUE 12/12/17            WED 12/13/17
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                      86          74          85          75          84
TEMP                   86 80 77 76 75 74 78 84 85 80 78 77 76 75 79 83 84 80 78
DEWPT                  69 70 70 70 69 68 68 69 67 67 68 70 70 69 70 70 70 69 69
RH                     57 72 79 82 82 82 71 61 55 65 71 79 82 82 74 65 63 69 74
WIND DIR               NE  E NE NE  E  E  E SE SE SE SE SE SE  S SE  S  S SE SE
WIND SPD               10  8  8  6  6  4  6  6  6  5  6  5  6  3  5  6  8  6  6
CLOUDS                 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     30          20          20          20          20
QPF 12HR                   0.05        0.03        0.03        0.01        0.02
RAIN SHWRS              C  C  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
HEAT INDEX             90 83                88 88 82                87 88 83
MAX HEAT               91    88                88    86                88    87


DATE          THU 12/14/17  FRI 12/15/17  SAT 12/16/17  SUN 12/17/17
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    85      75    86      76    85      75    86
TEMP          76 79 85 78   76 79 86 79   77 80 85 78   76 79 86 78
DEWPT         70 71 69 71   71 71 72 72   72 72 73 71   72 71 72 72
PWIND DIR         E     E       E     E       E    NE      NE     E
WIND CHAR        LT    GN      BZ    BZ      BZ    BZ      BZ    BZ
AVG CLOUDS    SC SC SC FW   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         20    20      20    20      20    20      20    20
RAIN SHWRS     S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

VIZ002-112015-
HENRY E. ROHLSEN AIRPORT-ST CROIX USVI
17.70N  64.80W ELEV. 74 FT
1108 AM AST Mon Dec 11 2017

DATE             MON 12/11/17            TUE 12/12/17            WED 12/13/17
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                      85          72          84          71          84
TEMP                   85 79 76 74 73 72 77 83 84 78 75 73 72 71 76 83 84 78 75
DEWPT                  71 71 72 71 71 70 69 70 70 70 71 70 70 69 70 70 70 69 69
RH                     63 77 87 90 93 93 76 65 63 76 87 90 93 93 82 65 63 74 82
WIND DIR               NE NE NE  E NE NE  E SE SE  E  E  S  S  S  E SE  S SE  E
WIND SPD                8  6  6  5  6  5  6  8  6  4  2  3  4  6  4  5  6  4  2
CLOUDS                 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     30          20          30          20          20
QPF 12HR                   0.05        0.03        0.05        0.01        0.02
RAIN SHWRS              C  C  S  S  S  S  S  S  C  C  S  S  S  S  S  S  S  S  S
HEAT INDEX             90                   87 88                   87 88
MAX HEAT               91    88                88    86                88    86


DATE          THU 12/14/17  FRI 12/15/17  SAT 12/16/17  SUN 12/17/17
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    86      73    86      74    86      73    85
TEMP          72 77 86 77   74 78 86 77   75 79 86 77   74 78 85 77
DEWPT         71 71 70 72   72 72 73 74   74 73 74 73   73 72 73 74
PWIND DIR         E     E       E     E      NE     E      NE     E
WIND CHAR        LT    GN      BZ    BZ      BZ    BZ      BZ    BZ
AVG CLOUDS    SC SC SC FW   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         20    20      20    20      20    20      10    10
RAIN SHWRS     S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$



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