Point Forecast Matrices
Issued by NWS Charleston, SC

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Point Forecast Matrices
National Weather Service Charleston SC
1249 AM EDT Sat Apr 21 2018

SCZ050-212000-
Charleston International Airport-Charleston SC
32.91N  80.03W Elev. 45 ft
1249 AM EDT Sat Apr 21 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
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                      45          71          52          71          59
Temp                   48 46 50 66 70 70 62 56 54 52 56 68 71 69 64 60 59 60 63
Dewpt                  42 43 45 44 43 45 46 47 49 50 51 52 52 53 54 55 56 57 58
RH                     80 89 83 45 38 41 56 72 83 93 83 57 51 57 70 84 90 90 84
Wind dir                E NE NE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd                4  4  8 11 11 11  9  6  5  5  6 10 11 12 11 11 11 11 13
Clouds                 CL CL CL FW FW CL CL FW FW SC SC B1 B2 OV OV OV OV OV OV
PoP 12hr                      0           0           5          20          60
QPF 12hr                      0           0           0           0        0.15
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                                  S  S  C  C  L  L  D


Date           04/23  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
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          69      60    74      60    76      58    77      58    76
Temp          69 66   62 62 73 68   63 62 75 68   61 60 76 69   62 60 75 68
Dewpt         61 61   61 61 61 60   59 58 58 58   56 54 53 56   55 55 55 56
PWind dir         E       E     S      SW     W       W     W       W     W
Wind char        BZ      GN    GN      LT    LT      LT    GN      LT    LT
Avg clouds    OV OV   OV OV B2 B1   B1 SC B1 SC   SC SC SC SC   SC SC B1 B1
PoP 12hr         90      80    40      30    20      10    10      10     5
Rain shwrs     D  D    D  D  C  C    C  C  S  S

$$
GAZ118-212000-
Savannah International Airport-Inland Chatham GA
32.12N  81.20W Elev. 50 ft
1249 AM EDT Sat Apr 21 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
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                      47          72          55          72          61
Temp                   51 48 51 67 71 72 65 59 56 55 58 69 72 70 64 62 61 61 64
Dewpt                  45 45 46 46 47 49 50 51 52 53 53 54 56 56 57 58 59 60 61
RH                     80 89 83 47 42 44 58 75 86 93 83 59 57 61 78 87 93 97 90
Wind dir               NE NE NE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd                4  5  8 12 13 12 10  8  6  6  8 10 12 14 13 12 11 13 14
Clouds                 CL CL FW SC SC SC SC SC SC B1 B1 B2 OV OV OV OV OV OV OV
PoP 12hr                      0           0          20          30          80
QPF 12hr                      0           0           0           0        0.80
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                            S  S  C  C  L  L  D  D  D


Date           04/23  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
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          72      61    76      59    78      56    78      56    77
Temp          71 67   63 63 75 69   62 61 77 68   60 59 76 68   60 59 76 68
Dewpt         63 63   61 61 59 60   58 57 57 57   55 53 53 56   55 55 53 55
PWind dir        SE      SE    SW       W     W       W     W       W     W
Wind char        BZ      GN    GN      LT    LT      LT    GN      LT    LT
Avg clouds    OV OV   OV B2 B2 B1   B1 SC SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr        100      60    40      20    20      10    10       5    10
Rain shwrs     D  D    L  L  C  C    S  S  S  S

$$
SCZ050-212000-
Charleston Waterfront-Charleston SC
32.78N  79.94W Elev. 10 ft
1249 AM EDT Sat Apr 21 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
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                      50          69          54          70          60
Temp                   53 51 53 66 68 68 62 58 56 55 57 68 70 69 64 62 61 61 62
Dewpt                  44 45 47 46 45 47 48 49 51 52 53 53 54 54 55 56 57 58 59
RH                     71 80 80 48 43 47 60 72 83 90 86 59 57 59 73 81 87 90 90
Wind dir                E NE NE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd                8  9 10 14 13 13 11  9  8  8  9 12 12 13 14 14 14 14 17
Clouds                 CL CL FW FW CL FW CL FW FW SC B1 B1 B2 OV OV OV OV OV OV
PoP 12hr                      0           0           5          20          60
QPF 12hr                      0           0           0           0        0.16
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                                  S  S  C  C  L  L  D


Date           04/23  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
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          69      61    73      61    75      59    76      59    75
Temp          68 66   63 62 72 68   63 63 74 68   62 61 75 69   62 61 74 68
Dewpt         62 62   62 62 62 61   60 59 59 59   57 54 55 57   56 56 56 57
PWind dir         E      SE     S      SW     W       W     W       W     W
Wind char        BZ      BZ    GN      GN    GN      GN    GN      LT    GN
Avg clouds    OV OV   OV OV B2 B1   SC SC B1 SC   SC SC SC SC   SC SC B1 B1
PoP 12hr         90      80    40      30    20      10    10      10     5
Rain shwrs     D  D    D  D  C  C    C  C  S  S

$$
SCZ048-212000-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N  80.72W Elev. 37 ft
1249 AM EDT Sat Apr 21 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
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                      48          71          54          71          61
Temp                   51 48 52 66 70 70 62 57 55 54 57 69 70 69 64 62 61 61 64
Dewpt                  45 45 47 46 46 48 50 50 51 52 53 54 55 56 56 57 58 59 60
RH                     80 89 83 48 42 45 65 77 86 93 86 59 59 63 75 84 90 93 87
Wind dir                E NE NE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd                5  6  8 12 12 12 10  8  6  6  8 10 10 13 13 12 11 13 16
Clouds                 CL CL FW FW FW FW FW FW SC SC B1 B2 B2 OV OV OV OV OV OV
PoP 12hr                      0           0          10          30          80
QPF 12hr                      0           0           0           0        0.50
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                            S  S  C  C  C  C  D  D  D


Date           04/23  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
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          70      60    74      59    76      57    78      57    76
Temp          69 64   62 62 73 67   62 61 75 68   61 60 77 69   61 59 75 68
Dewpt         63 63   62 62 60 61   59 57 58 58   56 53 53 57   56 56 54 56
PWind dir        SE      SE     S       W     W       W     W       W     W
Wind char        BZ      GN    GN      LT    LT      GN    GN      LT    GN
Avg clouds    OV OV   OV B2 B2 B1   B1 SC SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr        100      60    40      30    20      10    10      10    10
Rain shwrs     D  D    L  L  C  C    C  C  S  S

$$
SCZ043-212000-
Walterboro-Inland Colleton SC
32.91N  80.67W Elev. 98 ft
1249 AM EDT Sat Apr 21 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
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                      40          73          49          71          57
Temp                   43 42 46 65 71 72 63 55 51 50 53 67 71 70 65 59 58 57 60
Dewpt                  40 40 42 41 41 43 45 46 47 48 49 50 52 52 53 54 55 56 57
RH                     89 93 86 41 34 35 52 72 86 93 86 54 51 53 65 83 90 96 90
Wind dir                E NE NE  E  E  E SE  E  E  E  E  E SE  E  E  E  E  E  E
Wind spd                2  3  4 10  9  9  8  5  4  4  6  9  9 11 10  9  9 10 12
Clouds                 CL CL CL CL FW FW FW FW SC SC SC B2 OV OV OV OV OV OV OV
PoP 12hr                      0           0          10          20          70
QPF 12hr                      0           0           0           0        0.29
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                                  S  S  C  C  L  L  D


Date           04/23  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
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          69      58    74      57    77      54    78      54    77
Temp          69 65   60 60 73 67   60 59 76 67   58 57 76 67   59 57 75 67
Dewpt         61 61   59 60 59 60   57 56 56 57   54 52 52 55   54 54 52 54
PWind dir         E       E     S       W     W       W     W       W     W
Wind char        BZ      GN    LT      LT    LT      LT    GN      LT    LT
Avg clouds    OV OV   OV OV B2 B1   B1 B1 B1 SC   SC SC SC SC   SC SC SC SC
PoP 12hr        100      70    40      30    20      10    10      10     5
Rain shwrs     D  D    L  L  C  C    C  C  S  S

$$
GAZ099-212000-
Metter-Candler GA
32.40N  82.06W Elev. 197 ft
1249 AM EDT Sat Apr 21 2018

Date           04/20/18      Sat 04/21/18            Sun 04/22/18            Mon
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                      43          75          54          71          60
Temp                   47 44 47 65 72 75 67 59 56 54 56 66 70 70 65 61 60 61 62
Dewpt                  44 42 42 43 45 47 49 50 51 51 52 53 54 55 56 57 58 60 61
RH                     89 93 83 45 38 37 52 72 83 90 86 63 57 59 73 87 93 97 97
Wind dir                E  E NE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd                3  3  5 12 11 10 10  9  8  8  9 11 13 14 14 13 12 13 14
Clouds                 CL CL FW FW FW SC SC SC SC B1 B2 B2 OV OV OV OV OV OV OV
PoP 12hr                      0           0          20          30          90
QPF 12hr                      0           0           0        0.04        0.96
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                            S  S  C  C  L  L  D  D  D
Tstms                                                                         S


Date           04/23  Tue 04/24/18  Wed 04/25/18  Thu 04/26/18  Fri 04/27/18
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          71      59    75      57    77      55    77      55    76
Temp          70 67   61 61 74 67   60 59 76 67   59 58 75 67   59 58 75 67
Dewpt         63 62   61 60 59 58   57 56 56 57   54 53 53 55   55 55 52 54
PWind dir        SE      SE    SW      NW     W       W     W      NW     W
Wind char        GN      LT    GN      LT    GN      LT    GN      LT    LT
Avg clouds    OV OV   B2 B2 B2 B1   B1 SC B1 SC   SC SC SC SC   SC SC SC SC
PoP 12hr        100      60    40      20    20      10    10       5    10
Rain shwrs     D  D    L  L  C  C    S  S  S  S
Tstms          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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