794  
FOUS52 KCHS 180114  
PFMCHS  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE CHARLESTON SC  
913 PM EDT THU AUG 17 2017  
 
SCZ050-180900-  
CHARLESTON INTERNATIONAL AIRPORT-CHARLESTON SC  
32.91N 80.03W ELEV. 45 FT  
913 PM EDT THU AUG 17 2017  
 
DATE 08/17/17 FRI 08/18/17 SAT 08/19/17 SUN  
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 94 78 93 77  
TEMP 81 80 79 81 89 94 92 84 81 79 79 79 89 93 91 83 80 79 78 79  
DEWPT 78 78 77 77 78 76 76 77 77 77 76 76 77 76 76 77 77 76 76 76  
RH 91 94 94 88 70 56 60 80 88 94 91 91 68 58 62 82 91 91 94 91  
WIND DIR S SW SW SW SW SW S S SW SW SW SW SW SW SW S SW SW SW SW  
WIND SPD 3 1 0 2 6 9 12 8 8 6 3 3 8 10 11 9 6 4 4 3  
CLOUDS SC FW FW SC B1 B1 B1 SC SC SC SC B1 B1 B2 B2 B2 B1 B1 B1 B1  
POP 12HR 20 30 20 50 30  
QPF 12HR 0 0 0 0.39 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S S C C S S S S S S C C C C C C S  
TSTMS S S C C S S S S S S C C C C C C S  
HEAT INDEX 103107105 94 102106103 92  
MAX HEAT 93 107 107 92 106 106 90  
 
DATE 08/20 MON 08/21/17 TUE 08/22/17 WED 08/23/17 THU 08/24/17  
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 77 92 76 92 76 92 76 91  
TEMP 92 83 78 78 91 83 77 79 90 84 80 79 90 84 80 79 90 83  
DEWPT 76 77 76 76 76 76 75 75 75 75 75 75 75 76 75 75 76 76  
PWIND DIR S S S S S SW SW SW SW  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 SC B1 B1 SC SC B1 B1 B1 B1 B1 B1  
POP 12HR 40 20 30 20 30 20 30 30 40  
RAIN SHWRS C C S S C C S S C C S S C C C C C C  
TSTMS C C S S C C S S C C S S C C C C C C  
 

 
GAZ118-180900-  
SAVANNAH INTERNATIONAL AIRPORT-INLAND CHATHAM GA  
32.12N 81.20W ELEV. 50 FT  
913 PM EDT THU AUG 17 2017  
 
DATE 08/17/17 FRI 08/18/17 SAT 08/19/17 SUN  
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 78 95 77 94 77  
TEMP 81 79 78 79 89 95 92 86 81 80 77 79 89 94 92 84 81 80 77 78  
DEWPT 77 76 75 75 76 74 74 76 76 75 75 75 76 76 75 77 76 76 75 75  
RH 88 91 91 88 66 51 56 72 85 85 94 88 66 56 58 80 85 88 94 91  
WIND DIR S S SW SW W SW SW S S SW SW SW SW SW S S S S SW SW  
WIND SPD 1 2 1 2 5 6 9 5 5 4 3 2 6 8 8 6 5 3 2 1  
CLOUDS SC FW FW FW SC B1 B1 B1 SC SC SC B1 B1 B2 B2 B2 B1 B1 B1 B1  
POP 12HR 20 30 20 50 30  
QPF 12HR 0 0 0 0.30 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S S C C S S S S S S C C C C C C S  
TSTMS S S C C S S S S S S C C C C C C S  
HEAT INDEX 100106102 96 100107103 94  
MAX HEAT 94 106 106 93 107 107 90  
 
DATE 08/20 MON 08/21/17 TUE 08/22/17 WED 08/23/17 THU 08/24/17  
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 92 75 92 75 92 76 91  
TEMP 93 84 78 77 92 83 77 79 92 85 80 79 92 85 80 79 90 84  
DEWPT 76 76 75 75 76 76 75 75 74 75 74 74 75 75 75 74 75 75  
PWIND DIR S S S S S SW SW SW SW  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 SC SC B1 SC SC SC B1 B1 B1 B1 B1  
POP 12HR 40 20 30 20 30 20 30 20 40  
RAIN SHWRS C C S S C C S S C C S S C C S S C C  
TSTMS C C S S C C S S C C S S C C S S C C  
 

 
SCZ050-180900-  
CHARLESTON WATERFRONT-CHARLESTON SC  
32.78N 79.94W ELEV. 10 FT  
913 PM EDT THU AUG 17 2017  
 
DATE 08/17/17 FRI 08/18/17 SAT 08/19/17 SUN  
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 81 92 80 91 80  
TEMP 84 81 81 82 89 92 91 85 83 82 81 81 88 91 89 83 82 81 80 80  
DEWPT 79 79 78 78 78 77 77 78 78 78 77 77 77 77 77 77 77 77 77 77  
RH 85 94 91 88 70 62 64 80 85 88 88 88 70 64 68 82 85 88 91 91  
WIND DIR S SW SW SW SW SW S S SW SW SW SW SW SW S S SW SW SW SW  
WIND SPD 5 5 4 4 8 11 14 11 11 10 6 6 9 13 16 11 8 8 8 6  
CLOUDS SC FW FW SC B1 B1 B1 SC SC SC B1 B1 B1 B2 B2 B1 B1 B1 B1 B1  
POP 12HR 10 30 30 40 30  
QPF 12HR 0 0 0 0.33 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S C C S S C S S S C C C C C C S  
TSTMS S C C S S C S S S C C C C C C S  
HEAT INDEX 95 90 91102106104 97 93 90 100104102 92  
MAX HEAT 98 91 106 106 95 105 105 90  
 
DATE 08/20 MON 08/21/17 TUE 08/22/17 WED 08/23/17 THU 08/24/17  
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 79 89 78 90 78 90 78 88  
TEMP 90 83 80 80 89 82 79 80 89 84 80 80 89 84 80 80 88 82  
DEWPT 76 77 77 77 76 77 76 76 75 76 76 75 76 76 76 75 76 76  
PWIND DIR S S S S S SW SW SW SW  
WIND CHAR LT LT LT LT LT GN GN GN LT  
AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 SC SC B1 SC SC B1 B1 B1 B1 B1 B1  
POP 12HR 40 20 30 20 30 20 30 30 40  
RAIN SHWRS C C S S C C S S C C S S C C C C C C  
TSTMS C C S S C C S S C C S S C C C C C C  
 

 
SCZ048-180900-  
BEAUFORT MARINE CORPS AIR STATION-BEAUFORT SC  
32.48N 80.72W ELEV. 37 FT  
913 PM EDT THU AUG 17 2017  
 
DATE 08/17/17 FRI 08/18/17 SAT 08/19/17 SUN  
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 95 78 93 77  
TEMP 83 81 79 81 89 95 92 85 82 80 79 79 89 93 91 83 81 79 78 79  
DEWPT 78 78 77 77 76 76 76 77 77 76 76 76 76 76 76 77 77 76 76 76  
RH 85 91 94 88 66 54 60 77 85 88 91 91 66 58 62 82 88 91 94 91  
WIND DIR S SW SW SW W SW SW S S SW SW SW SW SW SW S S SW SW SW  
WIND SPD 3 2 1 1 5 8 10 6 6 6 2 2 5 8 8 6 4 3 4 3  
CLOUDS FW FW FW FW SC B1 B1 B1 SC SC SC B1 B1 B2 B1 B1 B1 B1 B1 B1  
POP 12HR 20 30 20 50 30  
QPF 12HR 0 0 0 0.32 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S S C C S S S S S S C C C C C C S  
TSTMS S S C C S S S S S S C C C C C C S  
HEAT INDEX 93 100109105 96 90 100106103 92  
MAX HEAT 98 109 107 94 106 106 90  
 
DATE 08/20 MON 08/21/17 TUE 08/22/17 WED 08/23/17 THU 08/24/17  
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 77 92 76 91 75 91 76 90  
TEMP 92 83 79 79 92 83 78 79 91 84 79 79 91 84 80 79 89 83  
DEWPT 76 76 76 76 75 76 75 75 74 75 75 74 75 75 75 75 75 76  
PWIND DIR S S S S S SW SW SW SW  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 SC SC B1 SC SC SC B1 B1 B1 B1 B1  
POP 12HR 40 20 30 20 30 20 30 30 40  
RAIN SHWRS C C S S C C S S C C S S C C C C C C  
TSTMS C C S S C C S S C C S S C C C C C C  
 

 
SCZ043-180900-  
WALTERBORO-INLAND COLLETON SC  
32.91N 80.67W ELEV. 98 FT  
913 PM EDT THU AUG 17 2017  
 
DATE 08/17/17 FRI 08/18/17 SAT 08/19/17 SUN  
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 95 76 94 75  
TEMP 81 79 77 79 89 95 93 85 80 79 77 78 88 93 92 84 80 77 76 77  
DEWPT 77 77 76 76 76 74 74 76 76 76 74 75 75 75 74 76 76 75 75 75  
RH 88 94 97 91 66 51 54 75 88 91 90 91 66 56 56 77 88 94 97 94  
WIND DIR S S SW SW SW SW SW S S SW SW SW SW SW SW S S SW SW SW  
WIND SPD 0 0 0 0 5 6 9 5 4 4 1 1 4 6 5 4 3 2 1 0  
CLOUDS SC FW FW FW SC B1 B1 SC SC SC SC B1 SC B2 B2 B2 B1 B1 B1 B1  
POP 12HR 20 30 20 50 20  
QPF 12HR 0 0 0 0.42 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S S S C S S S S S S C C S S S S S  
TSTMS S S S C S S S S S S C C S S S S S  
HEAT INDEX 100106103 94 98105102 93  
MAX HEAT 92 106 106 91 105 106  
 
DATE 08/20 MON 08/21/17 TUE 08/22/17 WED 08/23/17 THU 08/24/17  
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 75 92 75 92 74 92 74 91  
TEMP 93 84 77 77 91 83 76 78 92 84 78 78 92 84 78 78 90 82  
DEWPT 75 75 75 75 74 75 75 74 73 74 74 74 73 75 74 74 74 74  
PWIND DIR S S S S S SW SW SW W  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 SC B1 B1 B1 SC SC B1 B1 B1 B1 B1  
POP 12HR 40 20 30 20 40 20 40 30 40  
RAIN SHWRS C C S S C C S S C C S S C C C C C C  
TSTMS C C S S C C S S C C S S C C C C C C  
 

 
GAZ099-180900-  
METTER-CANDLER GA  
32.40N 82.06W ELEV. 197 FT  
913 PM EDT THU AUG 17 2017  
 
DATE 08/17/17 FRI 08/18/17 SAT 08/19/17 SUN  
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 95 76 93 75  
TEMP 82 79 77 79 89 95 94 87 81 78 77 77 87 93 92 85 80 77 75 77  
DEWPT 77 77 75 76 75 73 73 75 75 75 74 76 76 75 74 76 75 75 74 75  
RH 85 94 94 91 64 49 51 68 82 91 90 97 70 56 56 75 85 94 97 94  
WIND DIR SW SW SW W W W SW SW SW SW SW W W W W S S S S SW  
WIND SPD 0 0 0 0 5 6 8 4 4 3 1 1 3 5 5 3 1 1 0 0  
CLOUDS SC FW FW FW SC SC B1 B1 B1 SC SC B1 SC B2 B2 B2 B1 B1 SC SC  
POP 12HR 10 30 20 50 20  
QPF 12HR 0 0 0 0.25 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S C S S S S S C C S S S S S  
TSTMS S C S S S S S C C S S S S S  
HEAT INDEX 90 99105103 96 98105102 94  
MAX HEAT 98 105 105 94 105 105 91  
 
DATE 08/20 MON 08/21/17 TUE 08/22/17 WED 08/23/17 THU 08/24/17  
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 74 93 74 93 75 93 75 93  
TEMP 93 84 76 76 92 84 76 78 91 84 79 78 92 84 78 78 92 84  
DEWPT 74 76 75 75 74 76 74 74 73 75 74 74 73 75 74 74 73 75  
PWIND DIR S S SE S S S W SW W  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS B1 B2 B1 B1 B1 B1 B1 SC B1 B1 SC SC SC B1 B1 SC B1 B1  
POP 12HR 40 20 30 20 40 20 40 20 40  
RAIN SHWRS C C S S C C S S C C S S C C S S C C  
TSTMS C C 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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