Point Forecast Matrices
Issued by NWS Charleston, SC

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Point Forecast Matrices
National Weather Service Charleston SC
1256 PM EDT Wed Aug 23 2017

SCZ050-232100-
Charleston International Airport-Charleston SC
32.91N  80.03W Elev. 45 ft
1256 PM EDT Wed Aug 23 2017

Date             Wed 08/23/17            Thu 08/24/17            Fri 08/25/17
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                      93          77          89          74          87
Temp                   92 91 83 81 80 78 78 86 89 87 80 77 76 75 75 84 87 86 80
Dewpt                  73 74 75 76 75 75 75 76 75 75 75 74 74 73 73 73 73 73 73
RH                     54 58 77 85 85 91 91 72 64 68 85 90 94 94 94 70 63 65 79
Wind dir               SW  S  S SW SW SW  W  W SW  S  S  N NW  N NE NE NE  E  E
Wind spd                9 11  9  8  6  5  5  4  4  4  4  2  2  5  6  8  9  9  6
Clouds                 SC SC B1 B2 B2 B2 B2 B2 B2 OV OV B2 B2 B2 B2 B1 B1 B1 B1
PoP 12hr                     20          50          60          40          20
QPF 12hr                      0        0.03        0.56        0.25        0.16
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  S  S  C  C  C  C  C  L  L  C  C  C  C  S  S  S  S  S
Tstms                   S  S  S  C  C  C  C  C  L  L  C  C  C  C  S  S  S  S  S
Heat index            101101 90             96 99 96                90 94 93
Max heat              101   102                99    99                94    94


Date          Sat 08/26/17  Sun 08/27/17  Mon 08/28/17  Tue 08/29/17
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          73    86      71    83      70    82      72    82
Temp          74 75 85 78   73 72 83 76   72 72 82 77   73 73 82 78
Dewpt         71 70 70 69   67 66 66 67   66 67 70 70   70 69 71 71
PWind dir        NE    NE      NE    NE      NE    NE      NE     N
Wind char        LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC B1 B1 B1   B1 B1 B1 B1   B1 B1 B2 B2   B2 B2 B2 B2
PoP 12hr         20    30      10    20      20    30      20    30
Rain shwrs     S  S  C  C          S  S    S  S  C  C    S  S  C  C
Tstms          S  S  C  C          S  S    S  S  C  C    S  S  C  C

$$
GAZ118-232100-
Savannah International Airport-Inland Chatham GA
32.12N  81.20W Elev. 50 ft
1256 PM EDT Wed Aug 23 2017

Date             Wed 08/23/17            Thu 08/24/17            Fri 08/25/17
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                      94          76          91          75          88
Temp                   94 92 84 81 79 77 77 86 91 89 81 79 77 76 76 84 88 86 81
Dewpt                  73 73 74 75 74 73 75 75 75 74 75 75 75 73 74 74 74 73 74
RH                     51 54 72 82 85 87 94 70 60 61 82 88 94 90 94 72 63 65 79
Wind dir               SW  S  S  S SW SW SW SW  S  S  S  S NW  N NE NE NE  E  E
Wind spd                6  9  8  6  5  4  4  4  4  4  4  3  2  3  5  8  9  8  6
Clouds                 SC B1 B1 B2 B2 B2 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 B2 B2 B1
PoP 12hr                     30          30          60          40          30
QPF 12hr                      0        0.03        0.30        0.23        0.34
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  C  C  C  C  C  C  C  L  L  C  C  C  C  C  C  C  C  S
Tstms                   S  C  C  C  C  C  C  C  L  L  C  C  C  C  C  C  C  C  S
Heat index            103101 91             95102 98                91 97 93
Max heat              103   102    90         102   102                97    96


Date          Sat 08/26/17  Sun 08/27/17  Mon 08/28/17  Tue 08/29/17
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          74    87      72    85      71    84      72    85
Temp          76 75 87 78   73 73 85 78   74 72 83 78   74 73 84 79
Dewpt         73 71 71 70   69 67 67 66   66 66 68 69   69 69 71 71
PWind dir        NE    NE      NE    NE      NE    NE      NE    NE
Wind char        LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 B1 B1 B1   B1 B1 B1 B1   B1 B1 B2 B2   B2 B2 B2 B2
PoP 12hr         20    20      10    20      20    20      20    30
Rain shwrs     S  S  S  S          S  S    S  S  S  S    S  S  C  C
Tstms          S  S  S  S          S  S    S  S  S  S    S  S  C  C

$$
SCZ050-232100-
Charleston Waterfront-Charleston SC
32.78N  79.94W Elev. 10 ft
1256 PM EDT Wed Aug 23 2017

Date             Wed 08/23/17            Thu 08/24/17            Fri 08/25/17
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                      90          79          88          75          86
Temp                   90 89 84 82 82 79 79 85 88 86 80 78 77 76 77 84 86 85 80
Dewpt                  76 76 76 77 77 76 76 76 76 75 76 75 74 74 74 74 74 74 74
RH                     64 66 77 85 85 91 91 75 68 70 88 91 90 94 90 72 68 70 82
Wind dir               SW  S  S SW SW SW  W SW  S  S SW  S NW  N NE NE NE  E  E
Wind spd               11 14 11 10  9  8  6  5  5  8  5  2  3  5  8 10 11 12  9
Clouds                 SC SC B1 B2 B2 B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B2 B2 B1 B1
PoP 12hr                     20          40          60          40          30
QPF 12hr                      0        0.05        0.51        0.32        0.16
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                    S  C  C  C  C  C  C  L  C  C  C  C  C  C  C  C  S
Tstms                         S  C  C  C  C  C  C  L  C  C  C  C  C  C  C  C  S
Heat index            101 99 92 90          94 98 95                91 94 92
Max heat              102   102    92          98    98                94    94


Date          Sat 08/26/17  Sun 08/27/17  Mon 08/28/17  Tue 08/29/17
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          75    85      72    83      72    82      73    82
Temp          76 76 85 78   74 74 83 77   73 73 82 77   75 74 82 78
Dewpt         73 71 71 69   68 67 68 68   68 68 70 71   72 71 71 71
PWind dir        NE    NE      NE    NE      NE    NE      NE     N
Wind char        GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 B1 B1 B1   B1 B1 B1 B1   B1 B1 B2 B2   B2 B2 B2 B2
PoP 12hr         20    30      20    30      30    30      30    30
Rain shwrs     S  S  C  C    S  S  C  C    C  C  C  C    C  C  C  C
Tstms          S  S  C  C    S  S  C  C    C  C  C  C    C  C  C  C

$$
SCZ048-232100-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N  80.72W Elev. 37 ft
1256 PM EDT Wed Aug 23 2017

Date             Wed 08/23/17            Thu 08/24/17            Fri 08/25/17
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                      94          77          90          75          88
Temp                   93 90 83 81 81 78 78 85 90 87 82 79 76 75 76 83 88 85 80
Dewpt                  75 75 75 75 75 74 75 75 75 75 76 75 74 74 74 74 73 73 74
RH                     56 62 77 82 82 88 91 72 62 68 82 88 94 97 94 74 61 67 82
Wind dir               SW  S  S SW SW SW  W  W  S  S  S SW NW  N NE NE NE  E  E
Wind spd                8  9  8  8  6  6  5  4  4  4  4  3  2  4  6  8  9  9  8
Clouds                 SC B1 B1 B2 B1 B1 B2 B1 B2 B2 B2 B2 B1 B1 B2 B1 B1 B1 B1
PoP 12hr                     30          30          60          40          30
QPF 12hr                      0        0.05        0.37        0.28        0.25
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 S  C  C  C  C  C  C  L  L  C  C  C  C  C  C  C  C  S
Tstms                      S  C  C  C  C  C  C  L  L  C  C  C  C  C  C  C  C  S
Heat index            105101 90             94101 96                90 96 92
Max heat              105   103               101   101                96    94


Date          Sat 08/26/17  Sun 08/27/17  Mon 08/28/17  Tue 08/29/17
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          74    86      72    84      71    83      72    83
Temp          76 76 86 78   73 73 83 78   74 72 83 78   74 73 83 78
Dewpt         73 71 71 70   68 67 66 66   66 67 68 69   70 70 70 71
PWind dir        NE    NE      NE    NE      NE    NE      NE    NE
Wind char        GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 SC B1 B1   SC B1 B1 B1   B1 B1 B2 B2   B2 B1 B2 B2
PoP 12hr         20    20      10    20      20    20      20    30
Rain shwrs     S  S  S  S          S  S    S  S  S  S    S  S  C  C
Tstms          S  S  S  S          S  S    S  S  S  S    S  S  C  C

$$
SCZ043-232100-
Walterboro-Inland Colleton SC
32.91N  80.67W Elev. 98 ft
1256 PM EDT Wed Aug 23 2017

Date             Wed 08/23/17            Thu 08/24/17            Fri 08/25/17
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                      94          75          90          73          89
Temp                   93 91 83 80 78 76 76 85 90 88 80 77 75 74 74 83 89 87 80
Dewpt                  72 72 75 75 75 74 74 75 74 73 75 74 73 72 72 71 71 71 72
RH                     51 54 77 85 91 94 94 72 60 61 85 90 94 93 93 67 56 59 77
Wind dir               SW SW  S  S SW SW  W  W SW NW SE  E  N NE NE NE NE  E  E
Wind spd                6  8  6  4  4  3  3  3  3  3  3  2  2  4  5  8  8  6  4
Clouds                 SC B1 B2 B2 B2 B2 B2 B1 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 SC
PoP 12hr                     30          40          60          30          20
QPF 12hr                      0        0.03        0.44        0.14        0.14
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  C  C  C  C  C  C  C  L  L  C  C  S  S  S  S  S  S
Tstms                   S  C  C  C  C  C  C  C  L  L  C  C  S  S  S  S  S  S
Heat index            101 99 90             94 99 96                   95 93
Max heat              101   101                99    99                95    95


Date          Sat 08/26/17  Sun 08/27/17  Mon 08/28/17  Tue 08/29/17
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          72    87      70    84      69    83      70    82
Temp          74 74 87 78   71 71 83 76   72 70 82 77   72 71 82 77
Dewpt         70 69 68 67   66 64 62 64   64 65 66 68   68 68 69 70
PWind dir        NE    NE      NE    NE      NE    NE      NE    NE
Wind char        LT    GN      LT    GN      LT    GN      GN    GN
Avg clouds    SC SC B1 B1   SC B1 B1 B1   B1 B1 B2 B2   B2 B1 B2 B2
PoP 12hr         10    20       5    20      10    20      20    30
Rain shwrs           S  S          S  S          S  S    S  S  C  C
Tstms                S  S          S  S          S  S    S  S  C  C

$$
GAZ099-232100-
Metter-Candler GA
32.40N  82.06W Elev. 197 ft
1256 PM EDT Wed Aug 23 2017

Date             Wed 08/23/17            Thu 08/24/17            Fri 08/25/17
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                      94          76          91          74          89
Temp                   94 93 85 81 78 76 77 86 91 90 82 78 76 75 75 84 89 88 81
Dewpt                  72 72 74 75 75 73 74 74 73 73 75 74 74 72 73 73 72 71 72
RH                     49 51 70 82 91 90 90 68 56 58 79 88 94 90 94 70 57 57 74
Wind dir                W SW SW SW SW  W  W NW  N  N  E  E  E NE NE NE NE  E  E
Wind spd                8  8  4  4  3  3  3  3  4  4  3  4  2  4  5 10  8  9  5
Clouds                 SC B1 B2 B1 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 SC B1 B1 B1
PoP 12hr                     30          30          60          30          20
QPF 12hr                      0        0.02        0.36        0.11        0.23
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  C  C  C  C  C  S  C  L  L  C  C  S  S  S  S  S  S
Tstms                   S  C  C  C  C  C  S  C  L  L  C  C  S  S  S  S  S  S
Heat index            102101 93             94100 98                90 96 94
Max heat              102   102    90         100   100                96    96


Date          Sat 08/26/17  Sun 08/27/17  Mon 08/28/17  Tue 08/29/17
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          72    87      70    86      70    84      71    84
Temp          74 73 87 77   71 71 85 78   72 71 82 79   74 72 84 78
Dewpt         71 70 68 68   68 65 63 62   63 63 65 67   67 67 68 69
PWind dir        NE    NE      NE    NE      NE    NE      NE    NE
Wind char        LT    GN      LT    GN      LT    GN      GN    GN
Avg clouds    B1 SC B1 B1   B1 B1 B1 B1   B1 B1 B2 B2   B2 B1 B2 B2
PoP 12hr         10    10       5    10      10    20      20    30
Rain shwrs                                       S  S    S  S  C  C
Tstms                                            S  S    S  S  C  C

$$

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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