427  
FNUS72 KCAE 171224  
FWSCAE  
 
SPOT FORECAST FOR WATEREE HP/WMA...SCDNR  
NATIONAL WEATHER SERVICE COLUMBIA SC  
824 AM EDT WED JUL 17 2019  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON JULY 17.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
POSITIVE OR NEGATIVE FEEDBACK INCLUDING OBSERVATIONS TAKEN AT  
THE BURN SITE WOULD BE GREATLY APPRECIATED. YOU CAN USE THE SAME  
WEBPAGE WHERE YOU REQUESTED THE SPOT FORECAST FOR THIS. YOU MAY  
ALSO CALL OUR OFFICE IF YOU HAVE QUESTIONS OR CONCERNS.  
   
DISCUSSION
 
 
IT WILL BE A WARM DAY WITH HIGHS NEAR 100 DEGREES AND AFTERNOON  
RH VALUES DROPPING TO AROUND 40 PERCENT. HEAT INDEX VALUES MAY  
EXCEED 100 AFTER 11 AM THROUGH 6 OR 7 PM. SURFACE WINDS WILL BE  
LIGHT AND VARIABLE AT THE SPOT LOCATION UNTIL THE NOCTURNAL  
INVERSION BREAKS THIS MORNING AROUND 10 AM. THEN SURFACE WINDS  
WILL GENERALLY BE OUT OF THE SW WITH SPEEDS FROM 5 TO 10 MPH.  
TRANSPORT WINDS WILL ALSO BE OUT OF THE SW FROM 10 TO 15 MPH. FOG  
WILL BE POSSIBLE OVERNIGHT IN FOG PRONE AREAS BUT SHOULD NOT BE  
DENSE OR WIDESPREAD.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS LATE IN THE  
AFTERNOON.  
CHANCE OF PCPN......20 PERCENT.  
MAX TEMPERATURE.....AROUND 98.  
MIN HUMIDITY........40 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH LATE  
IN THE MORNING. GUSTY AND ERRATIC WINDS  
POSSIBLE NEAR THUNDERSTORMS LATE IN THE AFTERNOON.  
MIXING HEIGHT.......900-2700 FT AGL INCREASING TO 6600-7100 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 7 TO 16 MPH.  
LVORI...............2.  
MAX ADI.............57.  
 
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........23 25 26 39 38 46 49 53 52  
WEATHER COV..... SCH SCH  
WEATHER TYPE.... RW RW  
TSTM COV........ SCH SCH  
CHC OF PCPN (%).0 0 0 0 10 10 10 20 20  
TEMP............84 87 91 93 96 98 97 96 97  
RH..............72 65 58 52 46 41 43 43 42  
20 FT WIND DIR..SW W W W SW SW SW SW SW  
20 FT WIND DIR..240 250 260 250 240 230 220 220 230  
20 FT WIND SPD..4 4 5 6 6 6 6 7 7  
20 FT WIND GUST.7 7 9 10 10 13 13 14 14  
MIX HGT (KFT)...0.9 2.7 4.3 5.0 5.7 6.1 6.6 7.1 7.1  
TRASNP WIND DIR.W W W SW SW SW SW SW SW  
TRANSP WIND SPD.7 8 9 10 13 13 15 16 14  
LVORI...........3 3 2 2 1 1 1 2 2  
ADI.............15 26 36 46 53 57 51 42 31  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (45-55 PERCENT) THEN BECOMING  
PARTLY CLOUDY (35-45 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING.  
CHANCE OF PCPN......20 PERCENT.  
MIN TEMPERATURE.....AROUND 77.  
MAX HUMIDITY........85 PERCENT.  
WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH IN THE EVENING BECOMING  
LIGHT. GUSTY AND ERRATIC WINDS EXPECTED NEAR  
THUNDERSTORMS EARLY IN THE EVENING.  
MIXING HEIGHT.......5600 FT AGL DECREASING TO 200-1100 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 7 TO 16 MPH.  
LVORI...............4.  
MIN ADI.............3.  
 
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........52 47 43 45 41 36  
WEATHER COV.....S CHC S CHC  
WEATHER TYPE....RNSHWR RNSHWR NONE NONE NONE NONE  
TSTM COV........S CHC S CHC  
CHC OF PCPN (%).20 20 10 10 10 10  
TEMP............95 89 84 81 79 78  
RH..............45 58 71 79 81 83  
20 FT WIND......SW 7 S 5 S 5 S 4 SW 4 SW 4  
20 FT WIND GUST.14 8 8 7 6 6  
MIX HGT (FT)....5600 1100 500 300 200 200  
TRANSPORT WIND..SW 16 SW 8 SW 8 W 7 SW 7 SW 7  
LVORI...........2 3 3 4 4 5  
ADI.............20 6 6 5 5 3  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS LATE IN THE MORNING.  
CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN THE  
AFTERNOON.  
CHANCE OF PCPN......30 PERCENT.  
MAX TEMPERATURE.....AROUND 96.  
MIN HUMIDITY........47 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH IN  
THE LATE MORNING AND AFTERNOON. GUSTY AND  
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE  
IN THE MORNING.  
MIXING HEIGHT.......400-1600 FT AGL INCREASING TO 5200-6000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 8 TO 14 MPH.  
LVORI...............3.  
MAX ADI.............53.  
 
TIME (EDT) 6 AM 9 AM NOON 3 PM  
SKY (%).........34 26 41 54  
WEATHER COV..... S CHC CHANCE  
WEATHER TYPE....NONE NONE RNSHWR RNSHWR  
TSTM COV........ S CHC CHANCE  
CHC OF PCPN (%).0 10 20 30  
TEMP............77 83 92 95  
RH..............85 73 55 47  
20 FT WIND......SW 4G6 SW 5G7 SW 6G9 SW 6G12  
MIX HGT (FT)....400 1600 4400 6000  
TRANSPORT WIND..SW 8 W 10 W 13 SW 14  
LVORI...........5 3 1 1  
ADI.............4 21 49 46  
 

 
FORECASTER...ROHRBACH  
REQUESTED BY...TRAVIS BENNETT  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1912353.0/CAE  
.DELDT 07/17/19  
.EMAIL BENNETTT@DNR.SC.GOV  
 
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