Point Forecast Matrices
Issued by NWS Charleston, SC

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Point Forecast Matrices
National Weather Service Charleston SC
318 AM EDT Thu Oct 19 2017

SCZ050-192100-
Charleston International Airport-Charleston SC
32.91N  80.03W Elev. 45 ft
318 AM EDT Thu Oct 19 2017

Date             Thu 10/19/17            Fri 10/20/17            Sat 10/21/17
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                      79          56          80          58          81
Temp          58 58 71 77 77 67 62 60 58 57 72 79 78 66 62 60 59 60 75 81 80 71
Dewpt         54 55 58 60 59 59 58 56 55 53 54 53 54 56 57 56 55 56 60 62 63 63
RH            86 90 63 56 54 75 87 87 90 86 53 41 43 70 84 87 87 87 60 53 56 76
Wind dir       N  N NE NE NE NE NE  N  N  N NE NE  E  E  E NE NE NE NE  E  E  E
Wind spd       6  6  8  8  6  4  3  3  4  4  5  5  5  4  3  2  3  3  5  6  8  5
Clouds        FW FW FW FW FW FW CL CL CL CL CL CL CL CL CL CL FW FW FW SC SC SC
PoP 12hr                      0           0           0           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Coast Flood       Y


Date          Sun 10/22/17  Mon 10/23/17  Tue 10/24/17  Wed 10/25/17
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          64    81      68    80      66    78      58    70
Temp          66 66 80 71   69 69 80 72   69 67 77 70   62 58 69 61
Dewpt         63 63 68 68   68 68 71 70   68 66 64 60   54 52 47 46
PWind dir        NE     E       E    SE       S    SW       W    NW
Wind char        LT    LT      LT    LT      LT    GN      LT    LT
Avg clouds    SC B1 B1 B1   B1 B1 B2 B2   B2 B2 B1 SC   SC SC SC SC
PoP 12hr         10    20      30    50      50    50      20    20
Rain shwrs           S  S    C  C  C  C    C  C  C  C    S  S  S  S
Tstms                S  S    S  S  C  C    S  S  S  S

$$
GAZ118-192100-
Savannah International Airport-Inland Chatham GA
32.12N  81.20W Elev. 50 ft
318 AM EDT Thu Oct 19 2017

Date             Thu 10/19/17            Fri 10/20/17            Sat 10/21/17
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                      80          57          81          61          83
Temp          59 58 72 78 78 68 63 61 59 58 72 80 80 69 65 63 62 62 77 82 81 73
Dewpt         54 54 58 60 59 59 59 57 56 55 56 56 56 58 59 59 58 59 61 64 63 64
RH            83 86 61 54 52 73 87 87 90 90 57 44 44 68 81 87 87 90 58 55 54 73
Wind dir       N  N NE NE NE NE NE  N  N  N NE NE  E  E  E NE NE NE NE  E  E  E
Wind spd       6  6  9  9  6  5  4  3  4  5  6  6  6  4  4  3  4  5  8  9  9  8
Clouds        FW FW FW FW FW FW CL CL CL FW CL CL CL CL FW FW FW SC SC SC SC B1
PoP 12hr                      0           0           0           0          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                                                    S


Date          Sun 10/22/17  Mon 10/23/17  Tue 10/24/17  Wed 10/25/17
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          68    83      71    81      67    78      57    71
Temp          69 69 83 73   71 71 81 74   70 67 77 69   61 57 70 62
Dewpt         65 66 69 69   69 70 72 71   68 65 63 60   54 49 46 47
PWind dir         E     E      SE    SE       S     W       W    NW
Wind char        LT    LT      LT    LT      GN    GN      LT    GN
Avg clouds    B1 B1 B1 B1   B1 B2 B2 B2   B2 B2 B1 SC   SC SC SC FW
PoP 12hr         20    30      40    50      50    50      20    10
Rain shwrs     S  S  C  C    C  C  C  C    C  C  C  C    S  S
Tstms                S  S    S  S  C  C    S  S  S  S

$$
SCZ050-192100-
Charleston Waterfront-Charleston SC
32.78N  79.94W Elev. 10 ft
318 AM EDT Thu Oct 19 2017

Date             Thu 10/19/17            Fri 10/20/17            Sat 10/21/17
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                      79          60          80          62          81
Temp          62 62 72 78 77 68 65 63 61 61 72 78 78 68 65 63 63 63 75 80 79 72
Dewpt         57 57 60 60 60 60 59 58 56 55 55 54 56 57 58 58 57 58 61 62 63 64
RH            84 84 66 54 56 76 81 84 84 81 55 43 47 68 78 84 81 84 62 54 58 76
Wind dir       N  N NE NE NE NE NE  N  N  N NE NE  E  E  E NE NE NE NE  E  E  E
Wind spd      11 10 11 11 10  8  6  5  5  6  8  6  6  5  5  4  5  5  8  9 11  8
Clouds        FW FW FW FW FW FW CL CL CL CL CL CL CL CL CL CL FW FW FW SC SC SC
PoP 12hr                      0           0           0           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Coast Flood       Y


Date          Sun 10/22/17  Mon 10/23/17  Tue 10/24/17  Wed 10/25/17
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          68    80      71    80      68    77      60    70
Temp          69 68 80 73   71 71 80 73   71 68 77 70   63 60 69 62
Dewpt         65 65 69 68   69 69 71 70   69 67 64 60   55 52 48 47
PWind dir         E     E      SE    SE       S    SW       W    NW
Wind char        LT    GN      LT    GN      GN    GN      GN    GN
Avg clouds    B1 B1 B1 B1   B1 B1 B2 B2   B2 B2 B1 B1   SC SC SC SC
PoP 12hr         10    20      30    50      50    50      20    20
Rain shwrs           S  S    C  C  C  C    C  C  C  C    S  S  S  S
Tstms                S  S    S  S  C  C    S  S  S  S

$$
SCZ048-192100-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N  80.72W Elev. 37 ft
318 AM EDT Thu Oct 19 2017

Date             Thu 10/19/17            Fri 10/20/17            Sat 10/21/17
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                      79          58          81          60          82
Temp          59 59 71 78 77 68 64 62 60 59 72 79 79 68 65 63 61 62 76 81 80 71
Dewpt         54 55 58 58 58 59 58 57 55 54 55 53 54 56 58 58 57 57 61 61 63 64
RH            83 87 63 50 52 73 81 84 84 83 55 41 42 65 78 84 87 84 60 51 56 79
Wind dir       N  N NE NE NE NE NE  N  N  N NE NE  E  E  E NE NE NE NE  E  E  E
Wind spd       8  8  9  9  8  5  4  4  4  5  6  5  5  5  4  3  4  4  6  8  8  6
Clouds        FW FW FW FW FW FW CL CL CL CL CL CL CL CL CL FW FW FW FW SC SC B1
PoP 12hr                      0           0           0           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Coast Flood       Y


Date          Sun 10/22/17  Mon 10/23/17  Tue 10/24/17  Wed 10/25/17
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          66    82      69    80      67    78      57    70
Temp          68 68 82 71   71 71 80 73   70 67 77 70   62 58 70 62
Dewpt         64 65 67 68   68 69 70 70   67 66 62 59   53 50 44 45
PWind dir         E     E      SE    SE       S    SW       W    NW
Wind char        LT    LT      LT    GN      GN    GN      LT    GN
Avg clouds    B1 B1 B1 B1   B1 B2 B2 B2   B2 B2 B1 SC   SC SC SC SC
PoP 12hr         10    30      40    50      50    50      20    10
Rain shwrs           C  C    C  C  C  C    C  C  C  C    S  S
Tstms                S  S    S  S  C  C    S  S  S  S

$$
SCZ043-192100-
Walterboro-Inland Colleton SC
32.91N  80.67W Elev. 98 ft
318 AM EDT Thu Oct 19 2017

Date             Thu 10/19/17            Fri 10/20/17            Sat 10/21/17
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                      79          52          81          54          82
Temp          55 55 70 77 76 65 59 57 54 53 71 79 80 65 60 57 55 55 74 81 81 69
Dewpt         51 51 56 57 57 57 57 54 52 51 52 51 51 53 53 53 52 53 58 60 61 62
RH            86 86 61 50 52 75 93 90 93 93 51 38 36 65 78 86 90 93 57 49 51 78
Wind dir       N  N NE NE  N NE  N  N  N  N NE NE NE  E  E NE NE NE NE  E  E  E
Wind spd       4  5  6  6  5  3  2  2  3  3  4  4  4  3  2  2  2  3  5  5  5  4
Clouds        FW FW FW FW FW CL CL CL CL CL CL CL CL CL CL FW FW FW FW SC SC SC
PoP 12hr                      0           0           0           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date          Sun 10/22/17  Mon 10/23/17  Tue 10/24/17  Wed 10/25/17
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          61    81      67    80      65    77      54    70
Temp          63 63 81 69   67 68 80 71   67 65 77 68   59 55 69 59
Dewpt         62 62 67 67   67 67 70 69   66 65 62 59   52 48 44 45
PWind dir        NE     E       E    SE       S    SW       W    NW
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B1 B1 B1   B1 B2 B2 B2   B2 B2 B1 SC   SC SC SC SC
PoP 12hr          5    20      30    50      50    50      20    10
Rain shwrs           S  S    C  C  C  C    C  C  C  C    S  S
Tstms                S  S    S  S  C  C    S  S  S  S

$$
GAZ099-192100-
Metter-Candler GA
32.40N  82.06W Elev. 197 ft
318 AM EDT Thu Oct 19 2017

Date             Thu 10/19/17            Fri 10/20/17            Sat 10/21/17
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                      79          53          81          55          83
Temp          54 54 69 77 76 65 60 57 55 54 71 79 80 66 61 59 57 57 73 81 82 70
Dewpt         50 49 53 55 54 56 55 53 51 50 52 51 51 54 54 55 53 54 58 61 61 63
RH            86 83 57 47 46 73 84 86 86 86 51 38 36 65 78 87 86 90 59 51 49 78
Wind dir      NE NE NE NE NE NE NE NE NE  N NE NE  E  E  E  E NE NE  E  E  E  E
Wind spd       3  5  8  8  6  4  3  3  3  3  5  6  5  4  3  2  3  3  6  8  8  5
Clouds        CL FW CL CL CL CL CL CL CL CL CL CL CL CL CL FW FW FW FW SC SC B1
PoP 12hr                      0           0           0           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date          Sun 10/22/17  Mon 10/23/17  Tue 10/24/17  Wed 10/25/17
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          64    83      69    82      63    76      55    70
Temp          65 65 82 73   70 70 81 74   67 63 75 65   60 55 69 59
Dewpt         63 63 67 68   69 69 71 70   66 62 61 58   52 48 44 45
PWind dir         E     E       E    SE       S     W       W    NW
Wind char        LT    LT      LT    LT      LT    GN      LT    GN
Avg clouds    B1 B1 B1 B1   B1 B2 B2 B2   B2 B2 B1 SC   SC FW FW FW
PoP 12hr         10    30      40    50      50    30      20    10
Rain shwrs           C  C    C  C  C  C    C  C  C  C    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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