Point Forecast Matrices
Issued by NWS Charleston, SC

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FOUS52 KCHS 200436
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Point Forecast Matrices
National Weather Service Charleston SC
1236 AM EDT Sun Aug 20 2017

SCZ050-201945-
Charleston International Airport-Charleston SC
32.91N  80.03W Elev. 45 ft
1236 AM EDT Sun Aug 20 2017

Date           08/19/17      Sun 08/20/17            Mon 08/21/17            Tue
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      77          92          77          89          75
Temp                   79 77 79 90 92 90 83 80 77 77 78 88 87 88 82 78 78 76 77
Dewpt                  78 76 76 75 75 75 76 76 76 76 76 75 74 74 74 74 74 74 75
RH                     97 97 91 62 58 62 80 88 97 97 94 66 65 63 77 88 88 94 94
Wind dir               SW SW SW SW SE SE  S  S  S SE  E  E SE SE  S SE SE NE NW
Wind spd                2  0  0  2  6  9  6  4  2  1  2  6  6  6  5  3  2  1  2
Clouds                 FW FW SC B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B1 SC SC B1 B1 B1
PoP 12hr                     10          30          40          50          20
QPF 12hr                      0           0        0.03        0.16           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          C  S        S  C  C  C  C  C  S  S  S  S  C
Tstms                               C  S        S  C  C  C  C  C  S  S  S  S  C
Heat index                     101103101 91             98 95 97
Max heat                          103   103                99    97


Date           08/22  Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
EDT 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          90      76    92      76    90      74    87      73    87
Temp          90 81   78 78 90 83   78 77 88 82   76 76 86 80   75 75 86 80
Dewpt         75 75   75 75 76 76   76 76 76 76   74 73 74 73   72 72 71 69
PWind dir        SW      SW    SW      SW    SW      NW    NE      NE    NE
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    B1 B1   SC SC SC B1   B1 B1 B1 B1   B2 B2 B2 B2   B2 B1 SC SC
PoP 12hr         30      20    30      30    50      50    50      40    20
Rain shwrs     C  C    S  S  C  C    C  C  C  C    C  C  C  C    C  C  S  S
Tstms          C  C    S  S  C  C    C  C  C  C    C  C  C  C    C  C  S  S

$$
GAZ118-201945-
Savannah International Airport-Inland Chatham GA
32.12N  81.20W Elev. 50 ft
1236 AM EDT Sun Aug 20 2017

Date           08/19/17      Sun 08/20/17            Mon 08/21/17            Tue
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      75          93          76          90          76
Temp                   80 76 78 90 93 90 83 80 77 77 78 87 88 88 83 79 77 76 78
Dewpt                  76 75 75 74 73 74 75 75 75 76 76 75 74 75 74 74 74 75 75
RH                     88 97 91 60 52 60 77 85 94 97 94 68 63 66 74 85 90 97 91
Wind dir                S SW SW  S SE SE SE SE SE  E  E  E SE SE SE SE SE SE  S
Wind spd                0  0  0  3  6  9  8  5  2  1  2  5  6  6  6  4  2  1  1
Clouds                 FW FW SC B1 B1 B1 SC B1 B1 B1 B1 B2 B1 B1 B1 B1 B1 B1 B2
PoP 12hr                     10          20          40          40          20
QPF 12hr                      0           0        0.05        0.11           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  S        S  C  C  C  C  C  S  S  S  S  C
Tstms                               S  S        S  C  C  C  C  C  S  S  S  S  C
Heat index                      99102 99 90             96 97 98 90
Max heat               90         102   103                98    98


Date           08/22  Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
EDT 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          91      76    92      76    91      75    89      74    88
Temp          91 83   78 78 91 84   78 78 90 83   78 77 87 81   76 76 87 80
Dewpt         75 74   75 74 75 75   75 74 75 76   74 74 75 74   72 72 72 71
PWind dir        SE      SW    SW      SW    SW      NW    NE      NE    NE
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    B1 B1   SC SC SC B1   B1 SC B1 B1   B1 B1 B2 B2   B2 B2 B1 SC
PoP 12hr         30      20    40      30    50      40    50      50    20
Rain shwrs     C  C    S  S  C  C    C  C  C  C    C  C  C  C    C  C  S  S
Tstms          C  C    S  S  C  C    C  C  C  C    C  C  C  C    C  C  S  S

$$
SCZ050-201945-
Charleston Waterfront-Charleston SC
32.78N  79.94W Elev. 10 ft
1236 AM EDT Sun Aug 20 2017

Date           08/19/17      Sun 08/20/17            Mon 08/21/17            Tue
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      79          91          78          88          77
Temp                   83 80 80 89 91 89 83 81 79 78 79 87 85 87 82 79 78 77 78
Dewpt                  79 77 77 76 75 76 76 77 76 76 76 75 75 75 75 75 75 75 75
RH                     88 91 91 66 60 66 80 88 91 94 91 68 72 68 79 88 91 94 91
Wind dir               SW SW SW SW SE SE  S  S  S SE SE  E SE SE  S SE SE SW NW
Wind spd                5  3  1  3  9 11  9  6  4  2  3  6  8  9  6  4  3  2  2
Clouds                 FW FW SC B1 B1 B1 B1 B1 B1 B1 B2 OV B2 B1 SC SC B1 B1 B1
PoP 12hr                     10          30          40          50          20
QPF 12hr                      0           0        0.05        0.19           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                    S     C  S     S  S  C  C  C  C  C  S  S  S  S  C
Tstms                         S     C  S     S  S  C  C  C  C  C  S  S  S  S  C
Heat index             94      100102100 91             96 94 96
Max heat               96    91   102   101    90          98    96


Date           08/22  Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
EDT 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          89      78    90      78    89      76    87      75    87
Temp          89 82   80 80 89 83   79 79 88 82   78 77 86 80   76 76 86 81
Dewpt         75 75   76 76 76 77   76 76 76 76   75 74 74 74   73 72 72 71
PWind dir        SW      SW    SW      SW    SW      NW    NE      NE    NE
Wind char        LT      LT    LT      GN    LT      LT    GN      GN    GN
Avg clouds    B1 B1   SC SC SC B1   B1 B1 B1 B1   B2 B2 B2 B2   B2 B2 B1 SC
PoP 12hr         30      20    30      30    50      50    50      50    20
Rain shwrs     C  C    S  S  C  C    C  C  C  C    C  C  C  C    C  C  S  S
Tstms          C  C    S  S  C  C    C  C  C  C    C  C  C  C    C  C  S  S

$$
SCZ048-201945-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N  80.72W Elev. 37 ft
1236 AM EDT Sun Aug 20 2017

Date           08/19/17      Sun 08/20/17            Mon 08/21/17            Tue
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      77          92          77          89          76
Temp                   81 77 79 90 92 90 83 80 79 77 79 86 86 88 82 79 77 76 77
Dewpt                  78 76 75 75 74 75 76 77 77 76 76 75 75 75 75 75 75 75 75
RH                     91 97 88 62 56 62 80 91 94 97 91 70 70 66 79 88 94 97 94
Wind dir               SW SW SW  S SE SE SE SE SE SE  E  E SE SE SE SE SE SE SE
Wind spd                1  0  0  3  6  8  6  4  3  1  2  5  5  6  5  4  2  1  1
Clouds                 FW FW SC B1 B1 B1 SC B1 B1 B1 B1 B2 B1 B1 SC SC B1 B1 B1
PoP 12hr                     10          20          40          40          20
QPF 12hr                      0           0        0.06        0.15           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  S        S  C  C  C  C  C  S  S  S  S  C
Tstms                               S  S        S  C  C  C  C  C  S  S  S  S  C
Heat index                     101102101 91             95 95 98
Max heat               94         102   103                98    98


Date           08/22  Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
EDT 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          90      76    91      76    90      74    87      74    87
Temp          90 83   78 78 90 83   78 78 89 82   77 76 86 80   76 75 86 80
Dewpt         75 75   75 75 75 75   75 75 75 76   74 74 74 73   72 72 72 71
PWind dir        SE      SW    SW      SW    SW      NW    NE      NE    NE
Wind char        LT      LT    LT      LT    LT      LT    LT      GN    GN
Avg clouds    B1 B1   SC SC SC B1   B1 B1 B1 B1   B1 B1 B2 B2   B1 B1 B1 SC
PoP 12hr         30      20    30      30    50      40    50      50    20
Rain shwrs     C  C    S  S  C  C    C  C  C  C    C  C  C  C    C  C  S  S
Tstms          C  C    S  S  C  C    C  C  C  C    C  C  C  C    C  C  S  S

$$
SCZ043-201945-
Walterboro-Inland Colleton SC
32.91N  80.67W Elev. 98 ft
1236 AM EDT Sun Aug 20 2017

Date           08/19/17      Sun 08/20/17            Mon 08/21/17            Tue
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      75          94          75          90          73
Temp                   78 75 77 90 94 92 83 79 77 75 77 86 88 88 80 77 75 74 76
Dewpt                  77 75 75 74 73 73 75 75 75 75 76 75 74 74 74 74 73 73 74
RH                     97100 94 60 51 54 77 88 94100 97 70 63 63 82 90 94 97 94
Wind dir                S SW SW  S SE SE SE SE SE  E  E  E SE SE SE SE SE  E NE
Wind spd                0  0  0  2  4  6  5  3  1  1  1  4  5  5  5  3  1  1  1
Clouds                 FW FW FW B1 B1 B1 SC SC B1 B1 B1 OV B2 B1 SC SC B1 B1 B1
PoP 12hr                     10          20          30          40          10
QPF 12hr                      0           0        0.01        0.12           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  S           C  C  C  C  C              C
Tstms                               S  S           C  C  C  C  C              C
Heat index                      99103101 90             95 97 97
Max heat                          103   103                99    98


Date           08/22  Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
EDT 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          92      74    92      75    91      73    87      72    87
Temp          92 83   77 77 91 83   77 77 89 82   76 75 86 79   74 74 86 79
Dewpt         74 74   74 74 74 75   74 74 75 75   73 72 72 72   71 70 70 68
PWind dir        SE       S    SW      SW    SW       N    NE      NE    NE
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    B1 B1   SC SC SC B1   B1 B1 B1 B2   B2 B1 B1 B2   B1 B1 SC SC
PoP 12hr         30      20    40      30    50      40    50      40    20
Rain shwrs     C  C    S  S  C  C    C  C  C  C    C  C  C  C    C  C  S  S
Tstms          C  C    S  S  C  C    C  C  C  C    C  C  C  C    C  C  S  S

$$
GAZ099-201945-
Metter-Candler GA
32.40N  82.06W Elev. 197 ft
1236 AM EDT Sun Aug 20 2017

Date           08/19/17      Sun 08/20/17            Mon 08/21/17            Tue
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      73          95          75          91          74
Temp                   75 74 75 90 95 94 86 80 77 75 76 86 89 90 83 78 75 74 76
Dewpt                  72 71 72 71 70 71 74 75 75 75 75 74 74 74 75 75 75 74 74
RH                     90 90 90 54 45 47 68 85 94100 97 68 61 60 77 91100100 94
Wind dir                S  S  S SE  E  E SE SE SE SE SE  E  E  E SE SE SE  S  S
Wind spd                0  0  0  2  4  5  6  4  2  1  1  5  5  6  5  3  2  1  1
Clouds                 FW FW FW SC SC B1 B1 SC SC SC SC B1 B2 B2 B1 B1 SC B1 B1
PoP 12hr                      5          20          20          40          10
QPF 12hr                      0           0           0        0.10           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                             S              S  S  C  C              C
Tstms                                  S              S  S  C  C              C
Heat index                      96102101 94             94 98 99 90
Max heat                          102   102    90          98   101


Date           08/22  Wed 08/23/17  Thu 08/24/17  Fri 08/25/17  Sat 08/26/17
EDT 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          93      76    94      76    93      74    89      73    89
Temp          92 85   78 78 93 85   78 78 91 83   77 76 88 81   76 75 88 80
Dewpt         73 75   75 75 74 75   75 75 74 75   74 74 73 73   72 70 70 69
PWind dir         S       S    SW      SW    SW      NE    NE      NE    NE
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    B1 B1   SC SC SC B1   B1 SC B1 B1   B1 B1 B1 B2   B1 B1 B1 SC
PoP 12hr         30      20    40      20    50      40    40      40    20
Rain shwrs     C  C    S  S  C  C    S  S  C  C    C  C  C  C    C  C  S  S
Tstms          C  C    S  S  C  C    S  S  C  C    C  C  C  C    C  C  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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