Grayson County Requested Product
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FNUS51 KRNK 290137
FWFRNK

FIRE WEATHER PLANNING FORECAST FOR SW VA...SE WV AND NW NC
NATIONAL WEATHER SERVICE BLACKSBURG VA
937 PM EDT SAT MAR 28 2015

.DISCUSSION...

...LOW HUMIDITY TO PERSIST OVERNIGHT AND SUNDAY...

HIGH PRESSURE BUILDS INTO THE AREA OVERNIGHT ALLOWING GUSTY 
NORTHWEST WINDS TO FINALLY DIMINISH AFTER MIDNIGHT. HOWEVER
VERY DRY AIR WILL REMAIN IN PLACE WITH HUMIDITY LEVELS SLOW
TO RECOVER ABOVE 50 OR 60 PERCENT THROUGH SUNDAY MORNING.
THE HIGH SLIDES TO THE SOUTH SUNDAY AFTERNOON ALLOWING FOR
SOUTHERLY FLOW TO SETUP AHEAD OF THE NEXT COLD FRONT. MOISTURE
LEVELS WILL REMAIN LOW ON SUNDAY WITH THE COMBINATION OF WARMER AIR
AND MIXING AGAIN LEADING TO AFTERNOON HUMIDITY LEVELS OF 
20 TO 25 PERCENT WITH SOME SPOTS FALLING INTO THE TEENS.

THE COLD FRONT SHOULD CROSS THE AREA EARLY MONDAY. WINDS 
WILL INCREASE AHEAD OF THE BOUNDARY SUNDAY NIGHT AND STRONG WINDS 
WILL CONTINUE BEHIND THE FRONT MONDAY. THERE IS A CHANCE OF LIGHT
PRECIPITATION ON MONDAY WITH THE FRONT. THE NEXT SIGNIFICANT CHANCE
OF RAIN LOOKS TO BE THURSDAY THROUGH SATURDAY. 

&&

VAZ015-290930-
GRAYSON-
INCLUDING THE CITIES OF...INDEPENDENCE...WHITETOP...TROUTDALE...
VOLNEY
937 PM EDT SAT MAR 28 2015

                      TONIGHT      SUN          SUN NIGHT    MON          

CLOUD COVER           CLEAR        MCLEAR       PCLDY        PCLDY        
PRECIP TYPE           NONE         NONE         SHOWERS      SHOWERS      
CHANCE PRECIP (%)     0            0            40           50           
MIN/MAX TEMP          15           48           36           57           
MAX/MIN RH %          60           17           83           36           
WND20FT2MIN/EARLY(MPH)NW  9G23     W  4         SW  6G19     W  9G23      
WND20FT2MIN/LATE(MPH) NW  6G17     SW  4        SW  9G23     W 12G22      
PRECIP AMOUNT         0.00         0.00         0.03         0.02         
PRECIP DURATION                                 1            2            
PRECIP BEGIN                                    10 PM        CONTINUING   
PRECIP END                                      CONTINUING   2 PM         
MIXING HGT(FT-AGL)                 4610                      4510         
TRANSPORT WND (MPH)                SW 14                     NW 24        
VENT RATE (MPH-FT)                 64540                     108240       
DISPERSION (EVENING)  FAIR                      POOR                      
LAL                   1            1            1            1            
HAINES INDEX          4            4            3            2            
ADI EARLY             61 GOOD      19 GEN POOR  56 GEN GOOD  56 GEN GOOD  
ADI LATE              17 GEN POOR  52 GEN GOOD  27 FAIR      63 GOOD      
MAX LVORI EARLY       2            2            2            4            
MAX LVORI LATE        2            2            2            1            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT AND TUESDAY...MOSTLY CLEAR. LOWS IN THE MID 30S.
HIGHS IN THE UPPER 50S. MINIMUM RH 38 PERCENT. WEST WINDS 10 TO
15 MPH. 
.TUESDAY NIGHT AND WEDNESDAY...PARTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE LOWER 60S. MINIMUM RH 39 PERCENT. WEST WINDS
10 TO 15 MPH. 
.WEDNESDAY NIGHT AND THURSDAY...MOSTLY CLOUDY. A CHANCE OF RAIN.
LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S. MINIMUM RH
62 PERCENT. SOUTHWEST WINDS 10 TO 15 MPH. 
.THURSDAY NIGHT AND FRIDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS AROUND 50. HIGHS IN THE MID 60S. MINIMUM RH 57 PERCENT. WEST
WINDS 10 TO 15 MPH. 
.FRIDAY NIGHT AND SATURDAY...MOSTLY CLOUDY. A CHANCE OF RAIN
SHOWERS. COOLER. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 50S.
MINIMUM RH 66 PERCENT. NORTHWEST WINDS 10 TO 15 MPH.

.OUTLOOK 8 TO 14 DAYS...
TEMPERATURES BELOW 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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