Point Forecast Matrices
Issued by NWS Charleston, SC

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Point Forecast Matrices
National Weather Service Charleston SC
951 AM EDT Wed May 23 2018

SCZ050-232100-
Charleston International Airport-Charleston SC
32.91N  80.03W Elev. 45 ft
951 AM EDT Wed May 23 2018

Date             Wed 05/23/18            Thu 05/24/18            Fri 05/25/18
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                      86          71          85          70          85
Temp                82 86 84 77 74 72 71 74 82 85 82 77 73 72 70 73 81 84 83 79
Dewpt               70 70 68 68 70 70 70 71 72 71 71 71 70 70 70 71 71 70 70 71
RH                  67 59 59 74 87 93 97 90 72 63 69 82 90 93100 93 72 63 65 77
Wind dir            SW  S  S  S  S SW SW SW  S SE SE SE  E  E  E  E  E SE SE SE
Wind spd             8 10 11  9  5  2  1  2  5  8  9  6  3  1  1  3  6  9 10  6
Clouds              B1 B1 SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1
PoP 12hr                      5           5          50          20          40
QPF 12hr                      0           0        0.33        0.06        0.09
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                   C  C  C  S  S  S  S  C  C  C  C  S
Tstms                                        C  C  C  S  S  S  S  C  C  C  C  S
Heat index             91                      90
Max heat               91    90                90    90


Date          Sat 05/26/18  Sun 05/27/18  Mon 05/28/18  Tue 05/29/18
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    86      72    83      73    86      72    86
Temp          72 74 85 79   73 75 83 79   73 75 86 79   74 75 86 80
Dewpt         70 71 71 70   71 71 73 71   71 72 73 72   72 72 73 72
PWind dir         S     S      SE    SE       S     S       S     S
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    B1 B2 B2 B2   B2 OV OV OV   OV B2 B2 B2   B2 B2 B2 B2
PoP 12hr         20    40      40    60      50    60      40    50
Rain shwrs     S  S  C  C    C  C  L  L    C  C  L  L    C  C  C  C
Tstms          S  S  C  C    S  S  C  C    S  S  C  C    S  S  C  C

$$
GAZ118-232100-
Savannah International Airport-Inland Chatham GA
32.12N  81.20W Elev. 50 ft
951 AM EDT Wed May 23 2018

Date             Wed 05/23/18            Thu 05/24/18            Fri 05/25/18
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          69          85          70          85
Temp                83 87 85 77 73 70 70 71 82 85 82 76 73 71 70 72 82 85 84 79
Dewpt               67 68 69 69 69 69 69 70 72 71 71 70 69 70 70 70 70 70 69 70
RH                  59 53 59 76 87 97 97 97 72 63 69 82 87 97100 93 67 61 61 74
Wind dir             S  S  S  S  S  S  S  S  S SE SE SE  E  E  E  E  E SE SE SE
Wind spd             6 10 11  9  5  3  2  3  5  8  9  8  4  2  2  3  6 10 10  6
Clouds              SC B1 B1 B1 B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
PoP 12hr                     30          10          50          20          60
QPF 12hr                      0           0        0.35        0.05        0.11
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 C              S  C  C  C  S  S  S  S  L  L  L  L  S
Tstms                      C              S  C  C  C  S  S  S  S  C  C  C  C  S
Heat index             91                      90                      90
Max heat               91    91                90                      90    90


Date          Sat 05/26/18  Sun 05/27/18  Mon 05/28/18  Tue 05/29/18
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    86      71    84      71    87      72    87
Temp          72 73 85 78   71 72 84 78   73 74 87 80   74 74 86 81
Dewpt         69 70 71 71   70 70 73 72   71 71 72 72   71 71 72 72
PWind dir        SE    SE      SE    SE       S     S       S     S
Wind char        LT    GN      GN    GN      LT    GN      LT    GN
Avg clouds    B2 B2 B2 B2   B2 B2 OV OV   B2 B2 B2 B2   B2 B2 B2 B2
PoP 12hr         20    50      50    70      50    60      30    60
Rain shwrs     S  S  C  C    C  C  L  L    C  C  L  L    C  C  L  L
Tstms          S  S  C  C    S  S  C  C    S  S  C  C    S  S  C  C

$$
SCZ050-232100-
Charleston Waterfront-Charleston SC
32.78N  79.94W Elev. 10 ft
951 AM EDT Wed May 23 2018

Date             Wed 05/23/18            Thu 05/24/18            Fri 05/25/18
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                      84          72          83          71          83
Temp                81 84 83 77 75 73 72 75 81 83 81 78 74 72 71 73 80 83 82 78
Dewpt               71 71 70 70 71 71 71 72 72 72 72 71 71 71 71 71 71 71 71 71
RH                  72 65 65 79 87 93 97 90 74 70 74 79 90 97100 93 74 67 69 79
Wind dir            SW  S  S  S  S SW SW SW  S SE SE SE  E  E  E  E  E SE SE SE
Wind spd             8 12 13 10  6  3  2  3  8 11 12  9  5  3  3  4  8 11 12  8
Clouds              B1 B1 SC B1 B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1
PoP 12hr                     20           5          50          30          40
QPF 12hr                      0           0        0.22        0.06        0.07
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  S  S  S  S  C  C  C  C  S


Date          Sat 05/26/18  Sun 05/27/18  Mon 05/28/18  Tue 05/29/18
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      73    83      74    85      74    85
Temp          73 74 84 78   74 76 82 79   75 76 85 79   75 76 85 79
Dewpt         71 71 72 71   71 72 73 72   73 73 74 73   73 73 74 73
PWind dir         S     S      SE    SE       S     S       S     S
Wind char        LT    GN      GN    GN      GN    GN      LT    GN
Avg clouds    B1 B2 B2 B2   B2 OV OV OV   B2 B2 B2 B2   B2 B2 B2 B2
PoP 12hr         30    30      40    60      50    60      40    50
Rain shwrs     C  C  C  C    C  C  L  L    C  C  L  L    C  C  C  C
Tstms          S  S  C  C    S  S  C  C    S  S  C  C    S  S  C  C

$$
SCZ048-232100-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N  80.72W Elev. 37 ft
951 AM EDT Wed May 23 2018

Date             Wed 05/23/18            Thu 05/24/18            Fri 05/25/18
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                      86          71          85          70          85
Temp                83 86 83 78 75 72 71 74 82 85 82 77 74 71 71 73 81 84 83 77
Dewpt               68 70 69 69 70 70 70 71 72 72 72 71 71 71 71 71 71 71 70 71
RH                  61 59 63 74 84 93 97 90 72 65 72 82 90100100 93 72 65 65 82
Wind dir            SW  S  S  S  S SW SW  S  S SE SE SE  E  E  E  E  E SE SE SE
Wind spd             5  6  8  6  4  2  1  2  5  8  8  6  4  2  2  3  6 10 10  5
Clouds              SC B1 SC B1 B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
PoP 12hr                     20           5          50          20          50
QPF 12hr                      0           0        0.27        0.06        0.11
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                   C  C  C  S  S  S  S  C  C  C  C  S
Tstms                                        C  C  C  S  S  S  S  C  C  C  C  S
Heat index             91                      91
Max heat               91    91                91    90


Date          Sat 05/26/18  Sun 05/27/18  Mon 05/28/18  Tue 05/29/18
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    86      71    84      72    86      72    86
Temp          73 74 84 77   72 74 83 77   73 75 86 79   74 75 86 79
Dewpt         70 71 71 71   71 71 73 72   72 72 73 72   72 72 73 72
PWind dir        SE    SE      SE    SE       S     S       S     S
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    B2 B2 B2 B2   B2 OV OV OV   B2 B2 B2 B2   B2 B2 B2 B2
PoP 12hr         20    40      50    70      50    60      40    60
Rain shwrs     S  S  C  C    C  C  L  L    C  C  L  L    C  C  L  L
Tstms          S  S  C  C    S  S  C  C    S  S  C  C    S  S  C  C

$$
SCZ043-232100-
Walterboro-Inland Colleton SC
32.91N  80.67W Elev. 98 ft
951 AM EDT Wed May 23 2018

Date             Wed 05/23/18            Thu 05/24/18            Fri 05/25/18
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                      86          68          84          67          84
Temp                80 86 84 78 71 69 68 71 81 84 82 76 71 68 68 70 78 84 84 78
Dewpt               70 69 69 69 69 69 68 70 71 71 71 70 69 68 68 70 70 71 69 70
RH                  72 57 61 74 93100100 97 72 65 69 82 93100100100 76 65 61 76
Wind dir            SW  S  S  S  S SW  S  S SE  E SE SE  E NE  E  E  E SE SE SE
Wind spd             4  5  5  4  3  1  0  2  4  6  8  5  3  1  1  2  4  8  9  5
Clouds              B1 B1 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
PoP 12hr                     40          10          70          20          50
QPF 12hr                      0           0        0.66        0.07        0.14
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  C              S  C  L  L  S  S  S  S  C  C  C  C  S
Tstms                   S  C              S  C  C  C  S  S  S  S  C  C  C  C  S
Heat index             90
Max heat               90    90


Date          Sat 05/26/18  Sun 05/27/18  Mon 05/28/18  Tue 05/29/18
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          68    85      69    83      70    86      70    86
Temp          70 71 85 78   70 72 83 78   71 73 86 79   71 73 86 79
Dewpt         68 70 70 69   69 70 72 71   70 70 73 71   70 71 73 72
PWind dir        SE    SE      SE    SE      SE     S       S     S
Wind char        LT    LT      LT    GN      LT    LT      LT    LT
Avg clouds    B2 B2 B2 B2   B2 OV OV OV   OV B2 B2 B2   B2 B2 B2 B2
PoP 12hr         20    40      40    70      50    60      40    60
Rain shwrs     S  S  C  C    C  C  L  L    C  C  L  L    C  C  L  L
Tstms          S  S  C  C    S  S  C  C    S  S  C  C    S  S  C  C

$$
GAZ099-232100-
Metter-Candler GA
32.40N  82.06W Elev. 197 ft
951 AM EDT Wed May 23 2018

Date             Wed 05/23/18            Thu 05/24/18            Fri 05/25/18
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                      86          69          84          68          84
Temp                81 86 84 78 73 72 69 72 79 84 80 76 71 70 69 70 79 84 84 79
Dewpt               71 70 71 72 70 70 69 70 72 71 71 71 70 69 69 70 70 70 69 70
RH                  72 59 65 82 90 93100 93 79 65 74 85 97 97100100 74 63 61 74
Wind dir             S  S  S  S  S  S SE  S SE SE  E SE  E  E  E  E  E  E  E SE
Wind spd             4  4  4  3  2  2  1  2  4  5  8  5  3  2  2  3  5  8 10  5
Clouds              B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
PoP 12hr                     50          40          70          30          60
QPF 12hr                   0.13           0        0.52        0.08        0.18
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  C  C  S        S  C  L  L  C  C  C  C  L  L  L  L  S
Tstms                   S  C  C  S        S  C  C  C  S  S  S  S  C  C  C  C  S
Heat index             91
Max heat               91    91


Date          Sat 05/26/18  Sun 05/27/18  Mon 05/28/18  Tue 05/29/18
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          68    84      69    83      69    85      69    86
Temp          71 71 84 79   69 70 83 79   71 71 85 80   71 71 85 81
Dewpt         68 69 71 69   69 70 72 71   70 70 72 71   70 71 72 72
PWind dir        SE    SE      SE    SE      SE     S      SE     S
Wind char        LT    GN      LT    GN      LT    GN      LT    LT
Avg clouds    B2 B2 B2 B2   B2 OV OV OV   B2 B2 B2 B2   B2 B2 B2 B2
PoP 12hr         20    50      50    70      50    60      40    60
Rain shwrs     S  S  C  C    C  C  L  L    C  C  L  L    C  C  L  L
Tstms          S  S  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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