Point Forecast Matrices
Issued by NWS Charleston, SC

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Point Forecast Matrices
National Weather Service Charleston SC
251 AM EDT Thu Aug 24 2017

SCZ050-242100-
Charleston International Airport-Charleston SC
32.91N  80.03W Elev. 45 ft
251 AM EDT Thu Aug 24 2017

Date             Thu 08/24/17            Fri 08/25/17            Sat 08/26/17
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                      91          74          88          73          86
Temp          77 77 85 91 87 80 78 77 74 75 84 88 87 80 77 75 73 74 82 86 85 79
Dewpt         75 75 76 75 75 76 75 73 73 72 74 73 73 73 73 72 71 71 71 71 70 70
RH            94 94 75 60 68 88 91 87 97 90 72 61 63 79 87 90 93 90 69 61 61 74
Wind dir      SW SW SW SW  S  E  W  N  N  N NE NE  E  E NE NE NE NE NE NE NE NE
Wind spd       1  1  5  6  8  3  3  3  3  5  9  9  9  6  5  5  6  9 11 12 11  9
Clouds        SC SC SC B1 B2 B2 B2 B2 B2 B1 SC B1 B1 B1 SC SC SC B1 SC B1 B1 B1
PoP 12hr                     60          30          20          20          20
QPF 12hr                   0.33           0        0.02        0.01        0.01
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     C  S  S  C  C  C  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
Tstms          C  S  S  C  C  C  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
Heat index          94102 96                91 96 94                   91 90
Max heat              102   101                96    96                91    91


Date          Sun 08/27/17  Mon 08/28/17  Tue 08/29/17  Wed 08/30/17
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          71    84      70    82      72    83      72    84
Temp          73 72 83 78   72 71 82 77   73 72 83 77   74 73 84 79
Dewpt         67 66 67 67   66 67 70 70   69 69 72 71   70 71 72 73
PWind dir        NE    NE      NE    NE      NE    NE       N     N
Wind char        GN    GN      GN    GN      GN    GN      LT    LT
Avg clouds    B1 B1 B1 B1   B1 B1 B2 B2   B2 B2 B2 B2   B2 B2 B1 B1
PoP 12hr         10    20      20    30      30    40      30    20
Rain shwrs           S  S    S  S  C  C    C  C  C  C    C  C  S  S
Tstms                S  S    S  S  C  C    C  C  C  C    C  C  S  S

$$
GAZ118-242100-
Savannah International Airport-Inland Chatham GA
32.12N  81.20W Elev. 50 ft
251 AM EDT Thu Aug 24 2017

Date             Thu 08/24/17            Fri 08/25/17            Sat 08/26/17
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          75          88          74          87
Temp          77 78 87 93 87 82 79 77 75 76 83 88 87 81 78 76 75 75 83 87 85 80
Dewpt         73 74 75 75 74 76 75 75 73 74 75 74 74 74 74 73 72 72 73 72 70 71
RH            87 88 68 56 65 82 88 94 94 94 77 63 65 79 88 90 90 90 72 61 61 74
Wind dir       S SW SW SW  S SE  E SW  N NE NE NE  E  E NE NE NE NE NE NE NE NE
Wind spd       0  2  5  4  4  3  5  5  4  6  9  9  8  6  5  5  6  8 11 12 11  9
Clouds        SC SC SC SC B2 B2 B2 B1 B1 B1 B1 B1 B2 B1 B1 B1 SC B1 B1 B2 B1 B2
PoP 12hr                     60          40          30          20          20
QPF 12hr                   0.20           0        0.01        0.01           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           S  C  L  C  C  C  S  S  S  C  C  S  S  S  S  S  S  S  S
Tstms                S  C  L  C  C  C  S  S  S  C  C  S  S  S  S  S  S  S  S
Heat index          96105 95                90 97 95                   94 90
Max heat              105   102                97    97                94    93


Date          Sun 08/27/17  Mon 08/28/17  Tue 08/29/17  Wed 08/30/17
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    86      71    84      72    85      73    86
Temp          75 73 85 79   72 72 84 78   73 74 85 78   74 73 86 80
Dewpt         69 67 67 67   66 66 69 69   69 69 71 71   69 68 72 72
PWind dir        NE    NE      NE    NE      NE    NE      NE     N
Wind char        GN    GN      GN    GN      GN    GN      LT    LT
Avg clouds    B1 B1 B1 B1   B1 B1 B2 B2   B2 B2 B2 B2   B2 B2 B1 B1
PoP 12hr         10    20      20    30      30    30      30    20
Rain shwrs           S  S    S  S  C  C    C  C  C  C    C  C  S  S
Tstms                S  S    S  S  C  C    C  C  C  C    C  C  S  S

$$
SCZ050-242100-
Charleston Waterfront-Charleston SC
32.78N  79.94W Elev. 10 ft
251 AM EDT Thu Aug 24 2017

Date             Thu 08/24/17            Fri 08/25/17            Sat 08/26/17
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          76          87          75          85
Temp          80 80 85 88 87 81 79 78 77 76 84 87 85 80 78 76 75 76 82 85 84 80
Dewpt         76 76 76 76 75 76 75 75 74 73 74 74 74 74 74 73 72 72 72 72 71 71
RH            88 88 75 68 68 85 88 91 90 90 72 65 70 82 88 90 90 87 72 65 65 74
Wind dir      SW SW SW  S  S  S  W NW  N  N NE NE  E  E NE NE NE NE NE NE NE NE
Wind spd       4  4  8  9 11  5  4  4  4  8 11 11 11  9  8  8 11 12 16 16 14 12
Clouds        SC SC SC B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 SC B1 SC B1 B1 B1
PoP 12hr                     60          30          30          20          20
QPF 12hr                   0.29           0        0.03        0.03        0.03
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     C  S  S  C  C  C  C  C  S  S  S  S  C  S  S  S  S  S  S  S  S  S
Tstms          C  S  S  C  C  C  C  C  S  S  S  S  C  S  S  S  S  S  S  S  S  S
Heat index          94 99 96                91 95 93                   91
Max heat               99    99                95    95                91    90


Date          Sun 08/27/17  Mon 08/28/17  Tue 08/29/17  Wed 08/30/17
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    83      72    82      73    83      74    84
Temp          75 74 82 78   74 73 82 78   74 74 82 78   75 75 83 79
Dewpt         69 68 68 68   68 68 70 70   71 70 72 72   71 72 73 74
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 B2 B2   B2 B2 B2 B2   B2 B2 B1 B1
PoP 12hr         20    20      30    40      40    40      30    20
Rain shwrs     S  S  S  S    C  C  C  C    C  C  C  C    C  C  S  S
Tstms          S  S  S  S    C  C  C  C    C  C  C  C    C  C  S  S

$$
SCZ048-242100-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N  80.72W Elev. 37 ft
251 AM EDT Thu Aug 24 2017

Date             Thu 08/24/17            Fri 08/25/17            Sat 08/26/17
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                      91          75          88          74          86
Temp          80 79 86 91 89 83 80 76 75 76 83 87 86 80 77 76 75 75 82 86 85 81
Dewpt         74 75 75 75 75 76 75 74 74 73 74 73 73 74 74 74 72 72 72 71 70 71
RH            82 88 70 60 64 80 85 94 97 90 74 63 65 82 90 94 90 90 72 61 61 72
Wind dir      SW SW SW SW  S  W  S NW  N NE NE NE  E  E NE NE NE NE NE NE NE NE
Wind spd       2  2  5  5  6  3  5  3  3  5  9  9  9  6  6  5  8 10 12 12 12 10
Clouds        SC SC SC B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 SC SC B1 SC B1 B1 B1
PoP 12hr                     60          30          30          20          20
QPF 12hr                   0.25           0        0.01        0.01           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     S     S  C  L  C  C  C  S  S  S  S  C  S  S  S  S  S  S  S  S
Tstms          S     S  C  L  C  C  C  S  S  S  S  C  S  S  S  S  S  S  S  S
Heat index          95102 99 91             90 94 93                   91 90
Max heat              102   101                95    96                91    91


Date          Sun 08/27/17  Mon 08/28/17  Tue 08/29/17  Wed 08/30/17
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    84      71    83      72    84      73    85
Temp          75 73 84 78   73 72 83 78   74 74 83 77   74 74 85 79
Dewpt         69 67 67 67   67 67 69 69   69 69 71 71   70 70 71 73
PWind dir        NE    NE      NE    NE      NE    NE      NE     N
Wind char        GN    GN      GN    GN      GN    GN      LT    LT
Avg clouds    B1 B1 B1 B1   B1 B1 B2 B2   B2 B2 B2 B2   B2 B2 B1 B1
PoP 12hr         10    20      20    30      30    30      30    20
Rain shwrs           S  S    S  S  C  C    C  C  C  C    C  C  S  S
Tstms                S  S    S  S  C  C    C  C  C  C    C  C  S  S

$$
SCZ043-242100-
Walterboro-Inland Colleton SC
32.91N  80.67W Elev. 98 ft
251 AM EDT Thu Aug 24 2017

Date             Thu 08/24/17            Fri 08/25/17            Sat 08/26/17
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                      91          72          89          71          86
Temp          75 77 84 91 89 81 77 74 74 74 83 89 87 81 76 74 72 73 81 86 86 79
Dewpt         74 74 75 74 73 75 74 73 72 72 73 71 71 72 72 71 70 70 70 68 67 69
RH            97 90 74 58 59 82 90 97 93 93 72 56 59 74 87 90 93 90 69 55 53 72
Wind dir      SW SW SW  W  W  E NE  N  N NE NE NE NE  E NE  N NE NE NE NE NE NE
Wind spd       0  0  4  4  5  5  2  2  2  5  9  8  6  4  4  4  5  6 10 10 10  6
Clouds        SC SC SC SC B2 B2 B2 B1 B1 B1 SC SC B1 B1 SC SC SC B1 SC B1 B1 B1
PoP 12hr                     60          30          20          10          10
QPF 12hr                   0.15           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     S     S  C  L  C  S  S  S        S  S
Tstms          S     S  C  L  C  S  S  S        S  S
Heat index          92101 97                   95 93
Max heat              101    97                95    95


Date          Sun 08/27/17  Mon 08/28/17  Tue 08/29/17  Wed 08/30/17
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    85      69    83      70    83      71    85
Temp          72 71 84 78   71 70 82 77   72 71 82 77   73 72 85 80
Dewpt         66 64 64 65   64 65 66 68   67 67 70 70   68 68 70 72
PWind dir        NE    NE      NE    NE      NE    NE      NE     N
Wind char        LT    GN      GN    GN      GN    GN      LT    LT
Avg clouds    B1 SC B1 B1   B1 B1 B2 B2   B2 B2 B2 B2   B2 B2 B2 B2
PoP 12hr          5    10      10    30      30    30      30    20
Rain shwrs                         C  C    C  C  C  C    C  C  S  S
Tstms                              C  C    C  C  C  C    C  C  S  S

$$
GAZ099-242100-
Metter-Candler GA
32.40N  82.06W Elev. 197 ft
251 AM EDT Thu Aug 24 2017

Date             Thu 08/24/17            Fri 08/25/17            Sat 08/26/17
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                      92          73          90          73          88
Temp          76 77 86 92 90 84 78 76 75 75 83 89 89 81 77 75 74 74 82 87 87 80
Dewpt         73 74 73 72 71 74 74 74 73 72 73 72 71 73 73 73 71 72 71 69 68 69
RH            90 90 65 52 54 72 88 94 94 90 72 57 56 77 87 94 90 93 69 55 53 69
Wind dir      SW SW SW  W NW NE NE NE  N NE NE NE  E  E  E NE NE NE NE NE NE NE
Wind spd       0  0  4  4  2  4  8  3  2  6 12  8  8  4  3  3  4  6 10 10 10  5
Clouds        SC SC SC SC B1 B2 B1 B1 B1 B1 SC SC B1 B1 SC SC SC SC SC B1 B1 B1
PoP 12hr                     40          20          20          10          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           S  C  C  S  S  S  S        S  S
Tstms                S  C  C  S  S  S  S        S  S
Heat index          93100 96 91                96 95                   91 91
Max heat              100    98                96    96                91    92


Date          Sun 08/27/17  Mon 08/28/17  Tue 08/29/17  Wed 08/30/17
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    87      70    85      71    85      71    87
Temp          72 71 86 80   72 71 84 77   72 72 84 78   73 72 86 79
Dewpt         68 66 63 63   63 64 66 67   66 66 69 70   68 67 69 70
PWind dir        NE    NE      NE    NE      NE    NE      NE     N
Wind char        LT    GN      LT    GN      GN    GN      LT    LT
Avg clouds    B1 SC B1 B1   B1 B1 B2 B2   B2 B2 B2 B2   B2 B2 B2 B1
PoP 12hr          5    10      10    20      20    30      20    20
Rain shwrs                         S  S    S  S  C  C    S  S  S  S
Tstms                              S  S    S  S  C  C    S  S  S  S

$$

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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