Caswell County Requested Product
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FNUS51 KRNK 310920
FWFRNK

FIRE WEATHER PLANNING FORECAST FOR SW VA...SE WV AND NW NC
NATIONAL WEATHER SERVICE BLACKSBURG VA
520 AM EDT TUE MAR 31 2015

RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EDT
THIS EVENING FOR THE ALLEGHANY HIGHLANDS AND THE SHENANDOAH VALLEY

.DISCUSSION...

WESTERLY WIND FLOW REMAINED IN PLACE OVERNIGHT...MAINTAINING LOW 
HUMIDITY WHICH ALLOWED FOR ONLY MODEST RECOVERY OF FUEL MOISTURES. 
THE DOWNSLOPE FLOW WILL COMBINE WITH ABUNDANT SUNSHINE THIS MORNING 
TO CAUSE TEMPERATURES TO SPIKE QUICKLY AFTER SUNRISE...AND CAUSE 
RH VALUES TO DROP TO AROUND 20 PERCENT THIS AFTERNOON FOR MUCH OF 
THE AREA.

A DEEP LOW PRESSURE SYSTEM WILL PASS ACROSS THE SOUTHERN GREAT 
LAKES THIS AFTERNOON...CAUSING WINDS TO SHIFT MORE SOUTHWESTERLY 
AFTER SUNRISE AND WIND SPEEDS TO INCREASE. WIND SPEEDS BY EARLY 
AFTERNOON WILL INCREASE TO 10-20 MPH AND GUST TO AROUND 30 MPH FOR 
MOST OF THE FORECAST AREA. GUSTS AS HIGH AS 40 MPH CAN BE EXPECTED 
ACROSS THE HIGHER RIDGES.

THE LOW PRESSURE SYSTEM WILL DRAG A COLD FRONT ACROSS THE FORECAST 
AREA THIS EVENING...TRIGGERING SPOTTY SHOWER ACTIVITY WITH ONLY A 
FEW HUNDREDTHS OF AN INCH OF WETTING RAINFALL...MAINLY ACROSS THE 
RIDGES OF SOUTHEAST WEST VIRGINIA INTO THE ALLEGHANY HIGHLANDS...
ALONG WITH SOME INCREASED CLOUD COVER.

FUELS WILL CONTINUE TO DRY OUT THROUGH MIDWEEK. HIGH PRESSURE 
BUILDS OVERHEAD ON WEDNESDAY...RESULTING IN LIGHT WINDS...THEN MOVES 
OFFSHORE ON THURSDAY. MOISTURE RETURNS WITH SHOWERY WEATHER ANTICIPATED 
FOR THURSDAY NIGHT INTO EARLY SATURDAY.

&&

NCZ006-312215-
CASWELL-
INCLUDING THE CITIES OF...YANCEYVILLE
520 AM EDT TUE MAR 31 2015

                      TODAY        TONIGHT      WED          

CLOUD COVER           MCLEAR       MCLEAR       CLEAR        
PRECIP TYPE           NONE         NONE         NONE         
CHANCE PRECIP (%)     0            0            0            
MAX/MIN TEMP          72           41           65           
MIN/MAX RH %          21           81           30           
WND20FT2MIN/EARLY(MPH)SW  3        W  8G22      N  3         
WND20FT2MIN/LATE(MPH) SW 12G24     NW  4        N  3         
PRECIP AMOUNT         0.00         0.00         0.00         
PRECIP DURATION                                              
PRECIP BEGIN                                                 
PRECIP END                                                   
MIXING HGT(FT-AGL)    6030                      5750         
TRANSPORT WND (MPH)   SW 36                     NW  6        
VENT RATE (MPH-FT)    217080                    34500        
DISPERSION (EVENING)               FAIR                      
LAL                   1            1            1            
HAINES INDEX          5            4            5            
ADI EARLY             55 GEN GOOD  77 GOOD      12 POOR      
ADI LATE              113 VERY GOOD4 VERY POOR  41 GEN GOOD  
MAX LVORI EARLY       4            2            5            
MAX LVORI LATE        1            3            2            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.WEDNESDAY NIGHT AND THURSDAY...MOSTLY CLEAR. LOWS IN THE LOWER
40S. HIGHS IN THE LOWER 70S. MINIMUM RH 39 PERCENT. SOUTH WINDS
5 TO 10 MPH. 
.THURSDAY NIGHT AND FRIDAY...CLOUDY. A CHANCE OF. LOWS IN THE
UPPER 50S. HIGHS IN THE MID 70S. MINIMUM RH 57 PERCENT. SOUTHWEST
WINDS 5 TO 10 MPH. 
.FRIDAY NIGHT AND SATURDAY...MOSTLY CLOUDY. SHOWERS LIKELY. LOWS
IN THE LOWER 50S. HIGHS IN THE UPPER 60S. MINIMUM RH 39 PERCENT.
NORTHWEST WINDS 5 TO 10 MPH. 
.SATURDAY NIGHT AND SUNDAY...MOSTLY CLEAR. LOWS AROUND 40. HIGHS
IN THE MID 60S. MINIMUM RH 33 PERCENT. WEST WINDS AROUND 5 MPH. 
.SUNDAY NIGHT AND MONDAY...PARTLY CLOUDY. LOWS AROUND 40. HIGHS
IN THE MID 60S. MINIMUM RH 42 PERCENT. SOUTHWEST WINDS AROUND
5 MPH.

.OUTLOOK 8 TO 14 DAYS...
TEMPERATURES ABOVE NORMAL.  PRECIPITATION ABOVE NORMAL.


 

Site specific forecasts for wildfires and prescribed burns may be obtained by contacting the National Weather Service in Blacksburg, VA at (540) 552-0084 or by submitting a Spot Request over the Internet.

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