Point Forecast Matrices
Issued by NWS Charleston, SC

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Point Forecast Matrices
National Weather Service Charleston SC
639 AM EDT Fri Sep 22 2017

SCZ050-222100-
Charleston International Airport-Charleston SC
32.91N  80.03W Elev. 45 ft
639 AM EDT Fri Sep 22 2017

Date             Fri 09/22/17            Sat 09/23/17            Sun 09/24/17
EDT 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                      88          69          86          68          85
Temp             71 84 88 85 78 74 71 70 70 81 86 84 77 73 71 70 70 80 85 84 77
Dewpt            70 70 69 69 71 71 70 69 69 70 68 68 69 69 68 68 67 68 67 67 69
RH               97 63 54 59 79 90 97 97 97 69 55 59 76 87 90 93 90 67 55 57 76
Wind dir          N NE  E  E  E  E NE NE NE NE  E  E  E  E NE  N  N NE NE NE NE
Wind spd          2  4  6  8  6  3  2  3  3  6  8  8  5  3  3  4  5  9  9  8  5
Clouds           FW SC B1 SC SC SC SC SC SC SC SC B1 SC FW FW SC SC SC SC SC FW
PoP 12hr                     30          10          10           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  S
Tstms                   C  S
Obvis            PF
Heat index             92
Max heat               92    91


Date          Mon 09/25/17  Tue 09/26/17  Wed 09/27/17  Thu 09/28/17
EDT 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    85      68    86      69    88      69    89
Temp          71 70 85 75   70 69 86 77   72 71 87 77   72 70 88 77
Dewpt         67 65 66 68   67 66 67 68   68 66 66 68   67 66 67 69
PWind dir         N     N       N    NW      NW     N      NW    NW
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW FW FW   SC SC SC SC   SC FW FW FW   FW FW FW FW
PoP 12hr          5    10      10    10      10    10      10    10

$$
GAZ118-222100-
Savannah International Airport-Inland Chatham GA
32.12N  81.20W Elev. 50 ft
639 AM EDT Fri Sep 22 2017

Date             Fri 09/22/17            Sat 09/23/17            Sun 09/24/17
EDT 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                      88          70          86          69          86
Temp             71 84 87 87 78 74 72 71 71 81 85 84 77 74 71 70 70 81 85 85 78
Dewpt            69 70 69 69 70 70 69 69 70 70 68 68 69 69 69 68 67 68 66 67 68
RH               93 63 55 55 76 87 90 93 97 69 57 59 76 84 93 93 90 65 53 55 71
Wind dir          N  N  E  E  E  E NE  N NE NE  E  E  E NE NE  N  N NE NE NE  E
Wind spd          2  5  8  9  6  3  3  2  4  8 10 10  6  3  3  4  4  8  9  8  5
Clouds           FW SC SC SC SC SC SC SC SC SC SC B1 SC SC SC SC SC SC SC SC SC
PoP 12hr                     20          10          20          10           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S                    S  S  S
Tstms                   S                    S  S  S
Obvis            PF
Heat index             91 91
Max heat               92    92


Date          Mon 09/25/17  Tue 09/26/17  Wed 09/27/17  Thu 09/28/17
EDT 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    88      68    88      69    90      69    90
Temp          71 70 87 78   71 69 87 78   72 70 89 79   73 70 90 79
Dewpt         68 66 65 67   67 65 65 66   66 65 64 66   65 65 65 68
PWind dir         N     N       N     N      NW     N      NW     W
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC FW SC FW   FW SC SC FW   FW FW FW FW   FW FW FW FW
PoP 12hr          5     5       5    10      10    10      10    10

$$
SCZ050-222100-
Charleston Waterfront-Charleston SC
32.78N  79.94W Elev. 10 ft
639 AM EDT Fri Sep 22 2017

Date             Fri 09/22/17            Sat 09/23/17            Sun 09/24/17
EDT 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          72          85          70          84
Temp             76 83 86 84 78 75 73 73 73 81 84 83 77 74 72 71 71 80 84 83 77
Dewpt            71 72 71 71 72 72 71 70 70 70 69 69 69 70 69 69 68 68 68 68 69
RH               85 70 61 65 82 90 93 90 90 69 61 63 76 87 90 93 90 67 59 61 76
Wind dir          N NE  E  E  E  E NE NE NE NE  E  E  E  E NE NE  N NE NE NE NE
Wind spd          4  5  9 12  8  6  5  5  5  9 10 10  6  5  5  6  8 11 11 10  8
Clouds           FW SC SC SC SC SC SC SC SC SC SC SC SC FW FW SC SC SC SC SC FW
PoP 12hr                     20          10          10           5           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S
Tstms                   S
Obvis            PF
Heat index             91
Max heat               91    91


Date          Mon 09/25/17  Tue 09/26/17  Wed 09/27/17  Thu 09/28/17
EDT 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          70    84      70    85      71    86      71    87
Temp          72 71 84 76   72 71 85 77   73 72 86 77   73 72 87 77
Dewpt         68 67 67 69   68 67 67 69   69 67 67 69   68 67 68 70
PWind dir        NE     N       N     N      NW     N      NW    NW
Wind char        LT    GN      LT    LT      LT    GN      LT    LT
Avg clouds    FW FW FW FW   SC SC SC SC   SC FW FW FW   FW FW FW FW
PoP 12hr          5    10      10    10      10    10      10    10

$$
SCZ048-222100-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N  80.72W Elev. 37 ft
639 AM EDT Fri Sep 22 2017

Date             Fri 09/22/17            Sat 09/23/17            Sun 09/24/17
EDT 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                      87          70          85          69          85
Temp             74 84 87 84 78 75 73 71 71 80 85 83 76 74 71 70 70 80 85 84 78
Dewpt            70 71 70 69 71 71 70 70 70 70 68 68 69 69 69 68 68 67 66 67 69
RH               87 65 57 61 79 87 90 97 97 72 57 61 79 84 93 93 93 65 53 57 74
Wind dir          N  N  E  E  E  E NE NE NE NE  E  E  E  E NE NE  N NE NE NE NE
Wind spd          2  4  5  6  5  3  2  1  4  8 10  9  6  4  3  4  5  9  9  8  5
Clouds           FW SC B1 SC SC SC SC SC SC SC SC B1 SC SC FW SC SC SC SC SC SC
PoP 12hr                     20          10          10          10           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  S
Tstms                   S  S
Obvis            PF
Heat index             92
Max heat               92    91


Date          Mon 09/25/17  Tue 09/26/17  Wed 09/27/17  Thu 09/28/17
EDT 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    86      69    87      70    88      70    89
Temp          72 70 86 77   72 70 86 77   71 71 88 78   72 71 88 78
Dewpt         68 66 65 67   68 66 65 67   67 66 65 67   66 66 66 69
PWind dir         N     N       N     N      NW     N      NW     W
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC FW FW FW   FW SC SC FW   FW FW FW FW   FW FW FW FW
PoP 12hr          5     5      10    10      10    10      10    10

$$
SCZ043-222100-
Walterboro-Inland Colleton SC
32.91N  80.67W Elev. 98 ft
639 AM EDT Fri Sep 22 2017

Date             Fri 09/22/17            Sat 09/23/17            Sun 09/24/17
EDT 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                      88          67          86          66          86
Temp             68 82 88 86 77 73 70 68 69 81 86 86 76 71 69 68 68 79 85 85 77
Dewpt            66 69 68 69 70 70 68 68 68 70 66 66 68 68 67 66 66 67 65 66 67
RH               93 65 52 57 79 90 93100 97 69 51 51 76 90 93 93 93 67 51 53 71
Wind dir          N NE  E  E  E  E NE NE NE NE NE  E  E  E NE  N  N NE NE NE NE
Wind spd          0  4  4  4  3  0  0  0  2  5  6  6  3  2  2  3  3  8  8  6  3
Clouds           FW SC B1 B1 B1 SC SC SC SC SC SC B1 SC FW FW SC SC SC SC SC SC
PoP 12hr                     30          20          10           5           5
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  S  S
Tstms                   C  S  S
Obvis            PF
Heat index             92 90
Max heat               92    92


Date          Mon 09/25/17  Tue 09/26/17  Wed 09/27/17  Thu 09/28/17
EDT 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    87      67    88      68    89      68    90
Temp          70 68 86 77   69 68 86 78   70 69 88 78   71 69 89 77
Dewpt         66 64 64 66   66 64 65 66   66 65 64 66   65 64 64 67
PWind dir         N     N       N     N      NW     N      NW    NW
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC FW FW SC   SC FW SC FW   FW FW FW FW   FW FW FW FW
PoP 12hr          5     5      10    10      10    10      10    10

$$
GAZ099-222100-
Metter-Candler GA
32.40N  82.06W Elev. 197 ft
639 AM EDT Fri Sep 22 2017

Date             Fri 09/22/17            Sat 09/23/17            Sun 09/24/17
EDT 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                      87          68          86          67          87
Temp             70 81 87 86 77 72 70 69 69 80 85 85 77 72 69 68 68 80 86 86 78
Dewpt            68 70 68 68 70 70 69 68 68 70 67 66 68 68 67 66 66 67 65 66 68
RH               93 69 53 55 79 93 97 97 97 72 55 53 74 87 93 93 93 65 50 51 71
Wind dir          S NE  E  E  E  E  E NE NE NE  E  E  E  E  E NE NE NE NE NE NE
Wind spd          0  2  4  5  3  0  0  0  3  6  8  8  4  2  1  2  3  8  8  6  3
Clouds           FW SC B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC
PoP 12hr                     30          20          20          10           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  S  S                    S
Tstms                   C  S  S                    S
Obvis            PF
Heat index             91
Max heat               91    91


Date          Mon 09/25/17  Tue 09/26/17  Wed 09/27/17  Thu 09/28/17
EDT 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    88      67    89      68    90      68    91
Temp          71 68 86 78   69 68 87 78   71 69 88 78   71 69 89 78
Dewpt         66 65 64 66   65 64 64 66   65 64 64 65   64 64 64 66
PWind dir        NE     N       N     N      NW     N      NW    NW
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC FW FW FW   FW FW FW FW   FW FW FW FW   FW FW FW FW
PoP 12hr          5     5       5    10       5    10      10    10

$$

PRODUCT KEY...

--- Cloud Cover ---
CODE   PERCENTAGE            SKY COVER DAY/NIGHT
 CL    0 TO <=5 percent      Sunny/Clear
 FW    >5 TO <=25 percent    Sunny/Mostly Clear
 SC    >25 TO <=50 percent   Partly Cloudy
 B1    >50 TO <=69 percent   Mostly Cloudy
 B2    >69 TO <=87 percent   Mostly Cloudy
 OV    >87 TO 100 percent    Cloudy

--- Obstructions to Visibility ---    --- Weather Coverage ---
CODE   TYPE                           CODE   QUALIFYING TERM
 F     Fog                             S     Slight
 PF    Patchy Fog                      C     Chance
 F+    Dense Fog                       L     Likely
 PF+   Patchy Dense Fog                O     Occasional
 H     Haze                            D     Definite
 BS    Blowing Snow
 K     Smoke
 BD    Blowing Dust
 AF    Volcanic Ashfall

--- Extended Wind Forecast Character ---
                           12-HR MAX SUSTAINED
CODE   WIND CHARACTER          WIND SPEED
 LT    Light                   < 8 mph
 GN    Gentle                  8-14 mph
 BZ    Breezy                  15-22 mph
 WY    Windy                   23-30 mph
 VW    Very Windy              31-39 mph
 SD    Strong/Damaging         >=40 mph

$$




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