070  
FNUS72 KCHS 161524  
FWSCHS  
 
SPOT FORECAST FOR WF-C154...USFS  
NATIONAL WEATHER SERVICE CHARLESTON SC  
1124 AM EDT WED MAY 16 2018  
 
FORECAST IS BASED ON FORECAST START TIME OF 1200 EDT ON MAY 16.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
LOW PRESSURE TO THE SOUTHWEST WILL BRING UNSETTLED WEATHER TO THE  
AREA. SHOWER ACTIVITY WILL MAINLY BE FOCUSED INLAND OF THE FIRE  
LOCATION THROUGH MIDDAY, WITH SHOWERS MOVING IN FROM OVER THE  
OCEAN MOST LIKELY IN THE MID-TO-LATE-AFTERNOON TIMEFRAME. ANY LIGHT  
FOG THAT DOES FORM OVERNIGHT IS EXPECTED TO REMAIN INLAND OF THE  
FIRE LOCATION.  
 
FOG POTENTIAL FOR TONIGHT: LOW.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AND CHANCE OF  
THUNDERSTORMS.  
CHANCE OF PCPN......60 PERCENT.  
MAX TEMPERATURE.....AROUND 82.  
MIN HUMIDITY........69 PERCENT.  
WIND (20 FT)........SOUTH WINDS 9 TO 10 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE  
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS EARLY IN THE AFTERNOON.  
MIXING HEIGHT.......MAX 2800 FT AGL.  
TRANSPORT WINDS.....SOUTH 14 TO 18 MPH.  
MAX ADI.............38.  
INVERSION END.......8 AM  
 
TIME (EDT) 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........80 79 77 76 76 76  
WEATHER TYPE....RW RW RW RW RW RW  
TSTM COV........SCH SCH CHC CHC CHC CHC  
CHC OF PCPN (%).40 50 60 60 60 50  
TEMP............80 81 81 81 81 81  
RH..............74 69 69 69 72 72  
20 FT WIND DIR..S S S S S S  
20 FT WIND SPD..9 10 10 10 10 9  
20 FT WIND GUST.11 16 14 14 14 13  
MIX HGT (KFT)...2.7 2.7 2.8 2.8 2.8 2.8  
TRANSP WIND DIR.S S S S S S  
TRANSP WIND SPD.14 14 14 18 18 18  
LVORI...........4 4 3 3 3 4  
ADI.............29 34 38 34 29 24  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND  
THUNDERSTORMS.  
CHANCE OF PCPN......50 PERCENT.  
MIN TEMPERATURE.....AROUND 70.  
MAX HUMIDITY........97 PERCENT.  
WIND (20 FT)........SOUTH WINDS 8 TO 10 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS.  
MAX LVORI...........5.  
MIN ADI.............10.  
INVERSION BEGIN.....8 PM  
 
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........77 80 87 92 93 93  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........CHANCE CHANCE CHANCE CHANCE CHANCE CHANCE  
CHC OF PCPN (%).50 50 50 50 50 50  
TEMP............80 77 74 73 72 71  
RH..............74 82 87 90 93 93  
20 FT WIND......S 8 S 9 S 9 S 9 S 9 S 10  
20 FT WIND GUST.11 13 13 13 13 14  
MIX HGT (FT)....2100 800 800 800 800 800  
TRANSPORT WIND..S 14 S 14 S 12 S 12 S 12 S 12  
LVORI...........4 4 4 5 5 5  
ADI.............19 10 10 10 10 12  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS UNTIL LATE  
AFTERNOON. CHANCE OF THUNDERSTORMS THROUGH THE  
DAY. SHOWERS LIKELY EARLY IN THE AFTERNOON.  
CHANCE OF PCPN......60 PERCENT.  
MAX TEMPERATURE.....AROUND 82.  
MIN HUMIDITY........69 PERCENT.  
WIND (20 FT)........SOUTH WINDS 10 TO 18 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS.  
MIXING HEIGHT.......MAX 2700 FT AGL.  
TRANSPORT WINDS.....SOUTH AROUND 12 MPH INCREASING TO 24 TO 28 MPH  
IN THE LATE MORNING AND AFTERNOON.  
MAX ADI.............61.  
INVERSION END.......9 AM  
 
TIME (EDT) 6 AM 9 AM NOON 3 PM  
SKY (%).........94 90 85 81  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........CHANCE CHANCE CHANCE CHANCE  
CHC OF PCPN (%).50 50 50 60  
TEMP............71 75 81 81  
RH..............93 84 72 69  
20 FT WIND......S 10G16 S 12G18 S 15G22 S 17G25  
MIX HGT (FT)....800 1300 2500 2600  
TRANSPORT WIND..S 12 S 24 S 28 S 28  
LVORI...........5 4 2 2  
ADI.............13 22 45 53  
 

 
FORECASTER...BARNES  
REQUESTED BY...PAUL CHURCHILL  
TYPE OF REQUEST...WILDFIRE  
.TAG 1810128.0/CHS  
.DELDT 05/16/18  
.EMAIL PCHURCHILL@FS.FED.US  
 
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