Point Forecast Matrices
Issued by NWS Charleston, SC

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Point Forecast Matrices
National Weather Service Charleston SC
658 AM EDT Mon Jul 24 2017

SCZ050-242100-
Charleston International Airport-Charleston SC
32.91N  80.03W Elev. 45 ft
658 AM EDT Mon Jul 24 2017

Date             Mon 07/24/17            Tue 07/25/17            Wed 07/26/17
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                      89          76          89          75          88
Temp             78 86 89 87 81 80 78 76 79 88 88 87 81 77 77 75 77 85 88 87 81
Dewpt            74 75 75 75 74 75 75 74 75 75 75 75 75 75 75 75 75 75 74 75 75
RH               88 70 64 68 79 85 91 94 88 66 66 68 82 94 94100 94 72 63 68 82
Wind dir         SW SW SW  S  S SW SW SW SW SW SW SW SW SW SW SW SW  S SE SE SE
Wind spd          9 11 12 12 10  9  8  5  8  6  6  5  5  3  2  1  1  3  4  4  3
Clouds           B2 B2 B1 B2 B2 B1 SC SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
PoP 12hr                     50          40          50          40          70
QPF 12hr                   0.19        0.02        0.26        0.07        0.49
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  C  C  C  C  C  S  S  C  C  C  C  C  C  C  C  L  L  L  L  C
Tstms             C  C  C  C  C  C  S  S  C  C  C  C  C  C  C  C  L  L  L  L  C
Heat index          95 99 96                98 98 96                94 97 96
Max heat               99    99                99    98                97    98


Date          Thu 07/27/17  Fri 07/28/17  Sat 07/29/17  Sun 07/30/17
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          74    90      76    91      76    88      75    88
Temp          76 76 89 83   78 80 91 83   78 77 88 80   76 77 88 82
Dewpt         73 74 74 75   74 74 73 74   74 74 75 75   74 72 74 74
PWind dir        SE     S      SW    SW      SW    SW      SW    SW
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B1 B1 B1   SC SC B1 B1   B1 B1 B1 B1   B1 B1 B1 B1
PoP 12hr         50    40      20    40      20    50      40    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

$$
GAZ118-242100-
Savannah International Airport-Inland Chatham GA
32.12N  81.20W Elev. 50 ft
658 AM EDT Mon Jul 24 2017

Date             Mon 07/24/17            Tue 07/25/17            Wed 07/26/17
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          75          90          75          89
Temp             77 86 91 90 82 79 77 75 77 88 90 88 82 78 77 75 77 86 89 88 82
Dewpt            73 74 74 73 73 74 73 73 74 74 74 75 76 76 75 75 75 75 75 75 75
RH               87 68 58 58 74 85 87 94 90 63 60 66 82 94 94100 94 70 64 66 79
Wind dir         SW SW SW  S  S SW SW SW SW SW SW  S  S SW SW SW  W  S  S SE SE
Wind spd          8  9 10 10  9  8  6  5  8  6  5  4  3  2  2  2  3  4  4  4  4
Clouds           B2 SC B1 B2 B1 B1 SC SC B1 B2 B2 B2 OV OV B2 B2 B2 B2 B2 B2 B2
PoP 12hr                     40          30          50          40          60
QPF 12hr                   0.05        0.01        0.27        0.02        0.38
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        S  S  C  C  C  C  S  S  C  C  C  C  C  C  C  C  L  L  L  L  C
Tstms             S  S  C  C  C  C  S  S  C  C  C  C  C  C  C  C  L  L  L  L  C
Heat index          94101 98                97 99 98                95 99 98
Max heat              101   101                99    99                99    99


Date          Thu 07/27/17  Fri 07/28/17  Sat 07/29/17  Sun 07/30/17
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          74    91      75    93      75    89      75    89
Temp          76 76 90 84   77 77 93 85   78 77 88 81   76 76 89 83
Dewpt         73 75 74 75   74 74 74 74   74 75 74 75   73 73 74 74
PWind dir         S     S      SW    SW      SW     W      SW    SW
Wind char        LT    LT      LT    LT      LT    GN      LT    LT
Avg clouds    B2 B1 B1 B1   SC SC B1 B1   B1 B1 B1 B1   B1 B1 B2 B2
PoP 12hr         50    50      20    40      20    50      40    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

$$
SCZ050-242100-
Charleston Waterfront-Charleston SC
32.78N  79.94W Elev. 10 ft
658 AM EDT Mon Jul 24 2017

Date             Mon 07/24/17            Tue 07/25/17            Wed 07/26/17
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                      87          78          87          76          88
Temp             79 85 87 85 81 80 79 78 80 86 87 86 81 79 78 77 78 85 87 86 81
Dewpt            75 75 75 76 75 76 76 75 75 75 75 75 75 75 75 76 76 75 75 75 75
RH               88 72 68 75 82 88 91 91 85 70 68 70 82 88 91 97 94 72 68 70 82
Wind dir         SW SW SW  S SW SW SW SW SW SW SW SW SW SW SW SW  W SW SE SE SE
Wind spd         12 13 13 13 12 11 10  8  9  9  9  8  6  5  3  2  2  3  5  5  4
Clouds           B2 B2 B1 B1 B1 B1 SC SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
PoP 12hr                     50          30          40          40          70
QPF 12hr                   0.16        0.02        0.21        0.09        0.43
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  C  C  C  C  C  S  C  C  C  C  C  C  C  C  C  L  L  L  L  C
Tstms             C  C  C  C  C  C  S  C  C  C  C  C  C  C  C  C  L  L  L  L  C
Heat index          94 96 94                95 96 95                94 96 95
Max heat               96    98                96    95                96    96


Date          Thu 07/27/17  Fri 07/28/17  Sat 07/29/17  Sun 07/30/17
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          75    89      77    91      77    87      76    87
Temp          77 77 89 83   79 80 90 84   80 79 87 81   78 78 87 82
Dewpt         73 74 74 75   74 74 74 75   75 75 75 75   74 73 74 74
PWind dir         S     S      SW    SW      SW    SW      SW    SW
Wind char        LT    LT      LT    GN      GN    GN      LT    LT
Avg clouds    B2 B1 B1 B1   B1 SC B1 B1   B1 B1 B1 B1   B1 B1 B1 B2
PoP 12hr         50    50      20    40      20    50      50    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

$$
SCZ048-242100-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N  80.72W Elev. 37 ft
658 AM EDT Mon Jul 24 2017

Date             Mon 07/24/17            Tue 07/25/17            Wed 07/26/17
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                      89          75          89          76          88
Temp             78 85 89 87 82 80 78 76 79 85 89 87 81 78 76 76 77 85 88 86 81
Dewpt            74 74 75 75 74 75 74 74 74 74 74 75 75 75 75 75 76 75 75 75 75
RH               88 70 64 68 77 85 88 94 85 70 61 68 82 91 97 97 97 72 66 70 82
Wind dir         SW SW SW  S  S SW SW SW SW SW SW SW  S SW SW SW  W SW SE SE  S
Wind spd          9 10  9  9 10  9  8  5  8  6  5  4  4  3  3  2  2  3  4  4  4
Clouds           B2 B2 SC B1 B1 B1 SC SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
PoP 12hr                     40          30          50          40          70
QPF 12hr                   0.16        0.01        0.25        0.04        0.43
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  S  C  C  C  C  S  S  C  C  C  C  C  C  C  C  L  L  L  L  C
Tstms             C  S  C  C  C  C  S  S  C  C  C  C  C  C  C  C  L  L  L  L  C
Heat index          93 99 96                93 98 96                94 98 95
Max heat               99    99                98    98                98    98


Date          Thu 07/27/17  Fri 07/28/17  Sat 07/29/17  Sun 07/30/17
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          74    90      76    92      76    88      75    89
Temp          75 76 90 83   78 79 92 84   79 77 88 81   77 77 89 82
Dewpt         73 74 74 75   74 74 74 74   75 75 74 75   74 73 74 74
PWind dir         S     S      SW    SW      SW    SW      SW    SW
Wind char        LT    LT      LT    LT      LT    GN      LT    LT
Avg clouds    B2 B1 B1 B1   SC SC B1 B1   B1 B1 B1 B1   B1 B1 B1 B2
PoP 12hr         50    50      20    40      20    50      40    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

$$
SCZ043-242100-
Walterboro-Inland Colleton SC
32.91N  80.67W Elev. 98 ft
658 AM EDT Mon Jul 24 2017

Date             Mon 07/24/17            Tue 07/25/17            Wed 07/26/17
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          89          74          89
Temp             77 85 91 88 82 78 76 74 76 86 89 87 81 77 75 74 76 83 89 87 82
Dewpt            73 74 73 73 74 75 74 73 74 74 75 75 75 75 74 74 75 74 74 75 75
RH               87 70 56 61 77 91 94 97 94 68 64 68 82 94 97100 97 74 61 68 79
Wind dir         SW SW SW  S  S  S SW SW SW SW SW SW  S  S  S SW SW  S SE SE SE
Wind spd          6  8  8  6  6  6  4  3  5  5  5  4  3  2  1  1  2  2  3  3  3
Clouds           B2 B1 B1 B2 B2 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
PoP 12hr                     50          40          60          50          70
QPF 12hr                   0.20        0.02        0.34        0.03        0.51
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  C  C  C  C  C  S  S  C  C  C  L  C  C  C  C  L  L  L  L  C
Tstms             C  C  C  C  C  C  S  S  C  C  C  L  C  C  C  C  L  L  L  L  C
Heat index          93100 96                94 99 96                90 98 96
Max heat              100   100                99    99                98    98


Date          Thu 07/27/17  Fri 07/28/17  Sat 07/29/17  Sun 07/30/17
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    90      74    93      74    88      74    89
Temp          73 74 89 84   76 77 93 83   77 76 88 80   76 76 89 82
Dewpt         73 73 74 74   73 74 73 74   74 75 75 75   74 73 73 74
PWind dir        SE     S      SW    SW      SW    SW      SW    SW
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B1 B1 B1   SC SC B1 B1   B1 B1 B1 B1   B1 B1 B1 B1
PoP 12hr         50    40      20    30      30    50      40    50
Rain shwrs     C  C  C  C    S  S  C  C    C  C  C  C    C  C  C  C
Tstms          C  C  C  C    S  S  C  C    C  C  C  C    C  C  C  C

$$
GAZ099-242100-
Metter-Candler GA
32.40N  82.06W Elev. 197 ft
658 AM EDT Mon Jul 24 2017

Date             Mon 07/24/17            Tue 07/25/17            Wed 07/26/17
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          74          89          73          90
Temp             77 86 91 91 84 79 76 75 77 84 89 87 80 76 73 73 74 84 89 89 83
Dewpt            75 76 74 75 75 75 74 74 75 75 75 75 75 75 73 73 73 73 74 74 75
RH               94 72 58 60 74 88 94 97 94 74 64 68 85 97100100 97 70 61 61 77
Wind dir         SW SW SW SW SW SW SW SW SW  W  W SW SW SW SW SW SW SE NE  E SE
Wind spd          6  8  8  8  6  6  5  4  6  6  6  4  3  2  2  2  2  3  3  3  3
Clouds           B1 SC SC SC SC SC SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1
PoP 12hr                     40          40          60          50          70
QPF 12hr                   0.03        0.01        0.34        0.02        0.37
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        S  S  C  C  C  C  S  S  C  C  C  L  C  C  C  C  L  L  L  L  C
Tstms             S  S  C  C  C  C  S  S  C  C  C  L  C  C  C  C  L  L  L  L  C
Heat index          96101102 92             92 99 96                90 98 98 90
Max heat              101   102                99    99                98    99


Date          Thu 07/27/17  Fri 07/28/17  Sat 07/29/17  Sun 07/30/17
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          73    91      74    92      74    89      74    89
Temp          74 75 90 84   76 76 92 85   75 75 89 81   77 76 88 82
Dewpt         73 73 73 75   73 74 73 74   74 75 74 74   74 73 73 73
PWind dir        SE     S      SW    SW      SW    SW      SW    SW
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B1 B1 B1   SC SC B1 B1   B1 B1 B1 B1   B1 B1 B1 B1
PoP 12hr         40    40      20    30      20    50      40    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

$$

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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