Point Forecast Matrices
Issued by NWS Charleston, SC

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FOUS52 KCHS 180728
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POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE CHARLESTON SC
328 AM EDT SAT MAY 18 2013

SCZ050-182100-
CHARLESTON INTERNATIONAL AIRPORT-CHARLESTON SC
32.91N  80.03W ELEV. 45 FT
328 AM EDT SAT MAY 18 2013

DATE             SAT 05/18/13            SUN 05/19/13            MON 05/20/13
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          67          83          67          84
TEMP          68 70 79 84 83 76 71 69 68 70 80 83 81 76 71 68 68 71 80 84 81 75
DEWPT         64 66 65 64 65 65 67 67 67 68 67 67 66 67 67 68 67 68 67 67 67 66
RH            87 87 62 51 55 69 87 93 97 93 65 59 60 74 87100 97 90 65 57 63 74
WIND DIR       S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
WIND SPD       2  3  9 11 11  9  8  6  6  8 10 11 12 10 10  8  8  9  9 11 11  8
CLOUDS        SC SC SC B1 SC SC B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1
POP 12HR                     10          20          40          20          40
QPF 12HR                      0           0        0.11        0.05        0.27
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                                S  C  C  C  S  S  S  S  C  C  C  C  S
TSTMS                                     S  C  C  C  S  S  S  S  C  C  C  C  S
HEAT INDEX             85 85                82 86 83                82 87 83
MAX HEAT               85    87                86    86                87    87


DATE          TUE 05/21/13  WED 05/22/13  THU 05/23/13  FRI 05/24/13
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          67    85      66    86      67    86      66    86
TEMP          68 70 85 77   68 70 85 77   70 71 85 77   69 70 85 77
DEWPT         67 68 66 66   67 68 66 67   68 68 66 67   67 67 66 67
PWIND DIR         S     S       S     S       S     S       S    SE
WIND CHAR        LT    LT      LT    GN      LT    GN      LT    LT
AVG CLOUDS    B2 B1 B1 B1   SC SC B1 SC   SC B1 B1 B1   B1 B1 B1 B1
POP 12HR         20    20      10    10      10    20      20    30
RAIN SHWRS     S     S  S                        S  S    S  S  C  C
TSTMS          S     S  S                        S  S    S  S  C  C

$$
GAZ118-182100-
SAVANNAH INTERNATIONAL AIRPORT-INLAND CHATHAM GA
32.12N  81.20W ELEV. 50 FT
328 AM EDT SAT MAY 18 2013

DATE             SAT 05/18/13            SUN 05/19/13            MON 05/20/13
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          68          85          68          85
TEMP          67 69 79 84 84 78 73 69 68 71 80 85 84 78 73 70 68 71 80 84 83 77
DEWPT         64 66 65 64 65 66 67 67 67 68 68 68 68 68 68 68 68 69 68 67 67 68
RH            90 90 62 51 53 67 81 93 97 90 67 57 59 71 84 93100 93 67 57 59 74
WIND DIR       S  S  S  S SE SE  S  S  S  S  S  S  S SE  S  S  S  S  S  S  S  S
WIND SPD       4  3  6  8 10 10  8  6  5  5  8  9 10 10  9  8  6  8  4  6  9  5
CLOUDS        SC SC SC SC SC B1 B1 B1 SC B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B1
POP 12HR                     20          20          40          20          40
QPF 12HR                      0           0        0.09        0.05        0.24
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS              S  S  S           S  C  C  C  S  S  S  S  C  C  C  C  S
TSTMS                   S  S  S           S  C  C  C  S  S  S  S  C  C  C  C  S
HEAT INDEX             85 86                83 88 87                83 87 86
MAX HEAT               85    86                88    88                87    88


DATE          TUE 05/21/13  WED 05/22/13  THU 05/23/13  FRI 05/24/13
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          67    86      66    88      66    87      67    87
TEMP          68 70 86 79   68 70 87 78   70 70 86 78   70 71 86 78
DEWPT         67 68 67 67   67 68 67 68   68 69 67 67   68 68 67 68
PWIND DIR         S    SE       S    SE       S     S      SE     E
WIND CHAR        LT    LT      LT    GN      LT    GN      LT    LT
AVG CLOUDS    B1 B1 B1 SC   SC SC B1 B1   B1 B1 B1 B1   B1 B1 B1 B1
POP 12HR         20    20      10    10      10    20      20    30
RAIN SHWRS     S     S  S                        S  S    S  S  C  C
TSTMS          S     S  S                        S  S    S  S  C  C

$$
SCZ050-182100-
CHARLESTON WATERFRONT-CHARLESTON SC
32.78N  79.94W ELEV. 10 FT
328 AM EDT SAT MAY 18 2013

DATE             SAT 05/18/13            SUN 05/19/13            MON 05/20/13
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                      83          69          82          69          82
TEMP          70 71 79 82 81 75 72 70 69 72 79 81 79 75 72 70 69 72 79 82 80 75
DEWPT         65 67 66 64 65 66 67 68 67 68 67 67 67 67 67 68 68 68 67 67 67 67
RH            84 87 64 55 58 74 84 93 93 87 67 63 67 76 84 93 97 87 67 61 65 76
WIND DIR       S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
WIND SPD       2  3 10 12 12 10 10  9  9 10 10 11 12 11 12 11 10 10 10 12 12 10
CLOUDS        SC SC SC B1 FW SC SC SC B1 B1 B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B1
POP 12HR                     10          20          40          20          30
QPF 12HR                      0           0        0.08        0.03        0.23
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                                S  C  C  C  S  S  S  S  C  C  C  C
TSTMS                                     S  C  C  C  S  S  S  S  C  C  C  C
HEAT INDEX             83 83                   83                      85 82
MAX HEAT               84    85                83    83                85    85


DATE          TUE 05/21/13  WED 05/22/13  THU 05/23/13  FRI 05/24/13
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    82      68    83      69    83      68    83
TEMP          70 71 82 76   69 71 82 77   71 72 82 76   70 71 82 76
DEWPT         67 69 66 67   68 68 66 67   68 68 67 68   68 68 67 67
PWIND DIR         S     S       S     S       S     S       S    SE
WIND CHAR        LT    LT      LT    GN      GN    GN      LT    LT
AVG CLOUDS    B2 B1 B1 SC   SC SC B1 SC   SC B1 B1 B1   B1 B1 B1 B1
POP 12HR         10    10      10    10      10    20      20    20
RAIN SHWRS                                       S  S    S  S  S  S
TSTMS                                            S  S    S  S  S  S

$$
SCZ048-182100-
BEAUFORT MARINE CORPS AIR STATION-BEAUFORT SC
32.48N  80.72W ELEV. 37 FT
328 AM EDT SAT MAY 18 2013

DATE             SAT 05/18/13            SUN 05/19/13            MON 05/20/13
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                      85          68          83          69          84
TEMP          68 70 78 81 81 77 73 71 69 72 80 83 82 77 73 71 69 71 79 83 81 76
DEWPT         65 66 67 67 68 68 68 67 67 68 68 69 69 68 68 69 68 69 68 68 68 68
RH            90 87 69 63 65 74 84 87 93 87 67 63 65 74 84 93 97 93 69 61 65 76
WIND DIR       S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
WIND SPD       4  3  6  9 10  9  8  8  6  8  8 10 10  9  9  8  8  9  6  8  9  6
CLOUDS        SC SC SC SC SC SC B2 B1 SC B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1
POP 12HR                     20          20          40          20          40
QPF 12HR                      0           0        0.06        0.05        0.23
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                    S           S  C  C  C  S  S  S  S  C  C  C  C
TSTMS                         S           S  C  C  C  S  S  S  S  C  C  C  C
HEAT INDEX             83 84                83 87 85                   86 84
MAX HEAT               83    85                87    87                86    86


DATE          TUE 05/21/13  WED 05/22/13  THU 05/23/13  FRI 05/24/13
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          67    84      67    86      68    85      68    85
TEMP          69 70 84 77   69 71 85 78   71 71 84 77   71 71 84 77
DEWPT         67 68 67 67   68 68 66 68   68 68 67 68   68 68 67 68
PWIND DIR         S     S       S    SE       S     S      SE    SE
WIND CHAR        LT    LT      LT    GN      LT    GN      LT    LT
AVG CLOUDS    B1 B1 B1 B1   SC SC B1 SC   SC B1 B1 B1   B1 B1 B1 B1
POP 12HR         10    20      10    10      10    20      20    30
RAIN SHWRS           S  S                        S  S    S  S  C  C
TSTMS                S  S                        S  S    S  S  C  C

$$
SCZ043-182100-
WALTERBORO-INLAND COLLETON SC
32.91N  80.67W ELEV. 98 FT
328 AM EDT SAT MAY 18 2013

DATE             SAT 05/18/13            SUN 05/19/13            MON 05/20/13
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          66          85          66          85
TEMP          64 68 79 85 85 78 70 68 66 69 80 85 84 78 70 68 66 69 79 85 83 76
DEWPT         63 66 66 64 65 65 66 67 66 67 67 67 67 67 67 68 66 68 68 67 67 67
RH            97 93 64 50 51 64 87 97100 93 65 55 57 69 90100100 97 69 55 59 74
WIND DIR       S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
WIND SPD       3  2  6  6  9  8  6  5  5  5  8  9 10  8  8  5  5  6  6  6  8  5
CLOUDS        SC SC SC SC SC SC B2 B1 B1 B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1
POP 12HR                     20          20          50          30          40
QPF 12HR                      0           0        0.13        0.13        0.29
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                 S  S        S  S  C  C  C  C  S  S  S  C  C  C  C  S
TSTMS                      S  S        S  S  C  C  C  C  S  S  S  C  C  C  C  S
HEAT INDEX             86 87                82 88 87                   88 86
MAX HEAT               86    88                88    88                88    88


DATE          TUE 05/21/13  WED 05/22/13  THU 05/23/13  FRI 05/24/13
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          65    86      64    87      66    88      65    86
TEMP          67 68 85 77   66 68 86 78   69 70 87 78   69 69 85 76
DEWPT         66 68 67 66   66 68 67 66   67 68 66 67   67 67 68 67
PWIND DIR         S     S       S     S       S     S       S    SE
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         20    20      10    20      10    20      20    30
RAIN SHWRS     S     S  S          S  S          S  S    S  S  C  C
TSTMS          S     S  S          S  S          S  S    S  S  C  C

$$
GAZ099-182100-
METTER-CANDLER GA
32.40N  82.06W ELEV. 197 FT
328 AM EDT SAT MAY 18 2013

DATE             SAT 05/18/13            SUN 05/19/13            MON 05/20/13
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                      88          67          87          67          87
TEMP          66 68 80 87 88 82 73 69 67 69 79 86 87 80 73 69 68 69 79 85 87 80
DEWPT         64 66 66 63 62 66 67 68 67 68 69 67 67 69 69 69 68 69 69 68 67 69
RH            93 93 62 45 42 58 81 97100 97 72 53 52 69 87100100100 72 57 52 69
WIND DIR       S  S  S SW  S  S  S  S  S  S SW  S  S SE  S  S  S  S SW  S  S  S
WIND SPD       2  2  5  6  6  6  4  4  3  4  4  5  5  6  6  4  4  4  3  5  8  5
CLOUDS        B1 SC SC SC B1 B1 B1 SC B1 B2 B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B1
POP 12HR                     30          20          50          30          40
QPF 12HR                      0           0        0.18        0.10        0.23
SNOW 12HR                 00-00       00-00       00-00
RAIN SHWRS                 C  S        S  S  C  C  C  C  S  S  S  C  C  C  C  S
TSTMS                      C  S        S  S  C  C  C  C  S  S  S  C  C  C  C  S
HEAT INDEX          82 88 88 84                89 90 83                88 90 83
MAX HEAT               88    90                89    90                88    90


DATE          TUE 05/21/13  WED 05/22/13  THU 05/23/13  FRI 05/24/13
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          67    89      66    89      67    89      67    89
TEMP          69 70 87 82   69 70 88 79   71 71 88 79   71 71 88 79
DEWPT         66 68 67 67   65 67 65 67   66 68 66 67   66 67 66 67
PWIND DIR         S    SE      SE    SE       S     S       S     W
WIND CHAR        LT    LT      LT    LT      LT    LT      LT    LT
AVG CLOUDS    B1 B1 B1 B1   B1 SC SC B1   B1 B1 B1 B1   B1 B1 B1 B1
POP 12HR         20    20      10    20      10    30      20    30
RAIN SHWRS     S     S  S          S  S          C  C    S  S  C  C
TSTMS          S     S  S          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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