Point Forecast Matrices
Issued by NWS Charleston, SC

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FOUS52 KCHS 180658
PFMCHS

Point Forecast Matrices
National Weather Service Charleston SC
258 AM EDT Fri Aug 18 2017

SCZ050-182200-
Charleston International Airport-Charleston SC
32.91N  80.03W Elev. 45 ft
258 AM EDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      95          78          93          77          93
Temp          80 81 89 95 93 86 82 81 79 80 88 92 92 84 81 79 78 79 90 93 90 83
Dewpt         77 77 77 76 76 77 77 77 77 76 77 76 76 77 77 76 76 76 76 76 75 77
RH            91 88 68 54 58 75 85 88 94 88 70 60 60 80 88 91 94 91 64 58 62 82
Wind dir      SW SW  W SW  S  S SW SW SW SW SW SW  S  S SW SW SW SW  S  S  S  S
Wind spd       3  2  6  9 12  9  8  6  4  2  6 10 11  6  4  3  2  2  4  5  8  6
Clouds        SC FW SC SC B1 SC SC SC SC SC B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1
PoP 12hr                     20          10          30          30          40
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S                    C  C  C  C  C  C  C  C  C  C  C  C
Tstms                   S                    C  C  C  C  C  C  C  C  C  C  C  C
Heat index         102109106 97 90         100105105 94            102106101 92
Max heat              109   109    94         105   105    90         106   103


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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          77    91      75    91      75    92      75    90
Temp          78 78 90 82   76 77 91 82   76 76 92 82   78 76 90 82
Dewpt         76 76 76 76   75 75 76 76   75 75 76 76   75 75 75 76
PWind dir         S    SE      SW     S      SW    SW      SW    SW
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B1 B1 B1   SC SC SC B1   SC SC SC B1   B1 B1 B1 B1
PoP 12hr         30    40      20    40      20    40      30    50
Rain shwrs     C  C  C  C    S  S  C  C    S  S  C  C    C  C  C  C
Tstms          C  C  C  C    S  S  C  C    S  S  C  C    C  C  C  C

$$
GAZ118-182200-
Savannah International Airport-Inland Chatham GA
32.12N  81.20W Elev. 50 ft
258 AM EDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      96          77          94          77          93
Temp          78 81 90 96 94 86 82 80 78 79 89 93 92 84 81 79 77 78 89 93 90 84
Dewpt         75 75 75 74 74 75 75 75 74 75 76 75 75 76 76 76 75 75 77 76 75 76
RH            91 82 62 49 53 70 79 85 88 88 66 56 58 77 85 91 94 91 68 58 62 77
Wind dir      SW  W  W  W SW  S  S SW SW SW SW SW  S  S  S SW SW SW  S SE SE SE
Wind spd       2  1  5  8  9  6  5  4  2  1  5  6  6  5  4  3  2  2  3  5  6  6
Clouds        SC FW SC SC B1 SC SC SC SC SC SC B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1
PoP 12hr                     20          10          40          20          30
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S                    S  C  C  S  S  S  S  C  C  C  C  S
Tstms                   S                    S  C  C  S  S  S  S  C  C  C  C  S
Heat index         101107105 95            100105103 93            102106101 93
Max heat              107   106    93         105   106               106   105


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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          76    92      75    92      75    92      75    91
Temp          78 77 91 83   77 76 92 82   76 76 92 83   77 76 91 83
Dewpt         75 75 76 75   75 75 76 75   75 74 75 76   75 74 75 76
PWind dir         S    SE       S     S      SW    SW      SW    SW
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B1 B1 B1   B1 SC SC B1   SC SC SC B1   SC SC B1 B1
PoP 12hr         20    40      20    40      20    40      30    50
Rain shwrs     S  S  C  C    S  S  C  C    S  S  C  C    C  C  C  C
Tstms          S  S  C  C    S  S  C  C    S  S  C  C    C  C  C  C

$$
SCZ050-182200-
Charleston Waterfront-Charleston SC
32.78N  79.94W Elev. 10 ft
258 AM EDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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          81          91          79          90
Temp          81 83 88 92 91 86 83 82 81 82 88 91 90 83 81 81 79 80 88 90 89 83
Dewpt         78 78 77 78 78 78 78 78 77 77 77 77 77 77 77 77 77 77 77 76 76 77
RH            91 85 70 64 66 77 85 88 88 85 70 64 66 82 88 88 94 91 70 64 66 82
Wind dir      SW SW  W SW  S  S SW SW SW SW SW SW  S  S SW SW SW SW  S  S  S  S
Wind spd       8  5  6 11 13 12 12 10  8  5  8 11 13  9  6  5  4  4  5  6  8  8
Clouds        SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1
PoP 12hr                     20          10          40          40          40
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S                    C  C  C  C  C  C  C  C  C  C  C  C
Tstms                   S                    C  C  C  C  C  C  C  C  C  C  C  C
Heat index       92100107106 98 93 91    90100105103 92            100102100 92
Max heat         93   107   107    97    90   105   105    90         102   102


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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          79    90      78    90      78    90      77    89
Temp          80 80 89 82   78 79 90 82   78 78 90 82   79 78 89 82
Dewpt         77 77 76 76   76 76 76 76   76 76 76 77   76 76 76 76
PWind dir         S     S      SW     S      SW    SW      SW    SW
Wind char        LT    LT      LT    LT      LT    GN      GN    LT
Avg clouds    B1 B1 B1 B1   SC SC SC SC   SC SC SC B1   SC B1 B1 B1
PoP 12hr         30    30      20    30      20    30      30    50
Rain shwrs     C  C  C  C    S  S  C  C    S  S  C  C    C  C  C  C
Tstms          C  C  C  C    S  S  C  C    S  S  C  C    C  C  C  C

$$
SCZ048-182200-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N  80.72W Elev. 37 ft
258 AM EDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      95          78          93          77          93
Temp          79 81 90 95 93 86 83 81 79 80 88 92 91 84 81 80 77 80 89 93 90 84
Dewpt         77 77 77 76 77 78 78 76 75 75 76 76 76 77 77 76 76 76 77 76 76 77
RH            94 88 66 54 60 77 85 85 88 85 68 60 62 80 88 88 97 88 68 58 64 80
Wind dir      SW  W  W SW  S  S SW SW SW SW SW SW SW  S  S SW SW SW  S  S SE  S
Wind spd       3  3  5  8 10  8  6  6  3  2  5  8  8  5  4  3  3  3  3  4  6  5
Clouds        SC FW SC SC B1 SC SC SC SC SC B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1
PoP 12hr                     20          10          30          30          40
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S                    S  C  C  C  C  C  C  C  C  C  C  S
Tstms                   S                    S  C  C  C  C  C  C  C  C  C  C  S
Heat index         103109107 98 93          99105103 94            102106102 94
Max heat              109   109    96         105   106    90         106   105


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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          77    91      75    91      75    91      75    90
Temp          79 78 90 82   78 78 90 82   77 77 91 82   78 77 90 81
Dewpt         76 76 75 75   75 75 75 75   75 75 75 76   75 74 74 75
PWind dir         S    SE       S     S      SW    SW      SW    SW
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B1 B1 B1   B1 SC SC B1   SC SC SC B1   SC SC B1 B1
PoP 12hr         20    30      20    30      20    30      30    50
Rain shwrs     S  S  C  C    S  S  C  C    S  S  C  C    C  C  C  C
Tstms          S  S  C  C    S  S  C  C    S  S  C  C    C  C  C  C

$$
SCZ043-182200-
Walterboro-Inland Colleton SC
32.91N  80.67W Elev. 98 ft
258 AM EDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      96          76          94          75          93
Temp          77 80 90 96 94 86 81 79 78 79 88 93 93 85 80 77 76 77 88 93 91 83
Dewpt         76 76 75 73 73 75 76 76 75 75 76 75 74 76 77 76 75 75 76 75 74 76
RH            97 88 62 48 51 70 85 91 91 88 68 56 54 75 91 97 97 94 68 56 58 80
Wind dir      SW SW  W  W SW  S  S SW SW SW SW SW SW SW  S  S SW SW  S  S SE  S
Wind spd       0  0  5  8  8  5  4  4  0  0  4  6  5  3  2  2  1  1  2  4  5  4
Clouds        FW FW FW SC B1 SC SC SC SC SC SC B2 B2 B1 B1 B1 B1 B1 B1 B2 B1 B1
PoP 12hr                     20          10          30          20          30
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 S                 S  C  C  S  S  S  S  C  C  C  C  S
Tstms                      S                 S  C  C  S  S  S  S  C  C  C  C  S
Heat index         101106103 95             99105103 94             99105101 91
Max heat              106   106    93         105   105    91         105   103


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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    91      74    92      74    92      74    91
Temp          77 77 91 83   75 76 91 82   76 76 91 82   76 75 91 82
Dewpt         76 75 74 75   74 74 74 75   74 74 74 75   74 74 74 74
PWind dir        SE    SE      SW     S      SW    SW      SW    SW
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 SC B1 B1   SC SC SC B1   SC SC SC B1   SC SC B1 B1
PoP 12hr         20    30      20    40      20    40      30    50
Rain shwrs     S  S  C  C    S  S  C  C    S  S  C  C    C  C  C  C
Tstms          S  S  C  C    S  S  C  C    S  S  C  C    C  C  C  C

$$
GAZ099-182200-
Metter-Candler GA
32.40N  82.06W Elev. 197 ft
258 AM EDT Fri Aug 18 2017

Date             Fri 08/18/17            Sat 08/19/17            Sun 08/20/17
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                      97          75          94          75          94
Temp          76 79 90 96 94 86 81 78 77 78 88 93 93 85 80 77 76 77 89 94 93 85
Dewpt         75 75 75 73 72 74 75 74 74 75 76 75 74 76 76 75 75 76 77 75 75 77
RH            97 88 62 48 49 68 82 88 90 91 68 56 54 75 88 94 97 97 68 54 56 77
Wind dir      SW  W  W  W SW SW SW  W  W  W  W  W  W  S  S  S SW SW  S  S SE SE
Wind spd       0  0  6  6  8  4  3  3  0  0  3  5  5  3  2  1  0  0  1  3  5  4
Clouds        FW FW FW SC B1 SC SC SC SC SC SC B1 B2 B1 SC SC SC SC B1 B1 B2 B1
PoP 12hr                     20          20          20          10          30
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 S  S  S           S  S  S                 C  C  C
Tstms                      S  S  S           S  S  S                 C  C  C
Heat index         101106102 94             99105103 94            102106105 96
Max heat              106   105    92         105   105    91         106   105


Date          Mon 08/21/17  Tue 08/22/17  Wed 08/23/17  Thu 08/24/17
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    92      74    93      75    94      75    93
Temp          76 76 92 84   76 76 92 85   77 76 93 86   78 76 92 84
Dewpt         75 75 74 76   74 74 74 76   75 75 74 75   75 75 74 76
PWind dir        SE    SE       S     S       S    SW      SW     W
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B1 B1 B1   B1 SC SC B1   SC SC SC B1   SC SC SC B1
PoP 12hr         10    40      20    40      20    40      20    50
Rain shwrs           C  C    S  S  C  C    S  S  C  C    S  S  C  C
Tstms                C  C    S  S  C  C    S  S  C  C    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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