Grayson County Requested Product
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FNUS51 KRNK 210724
FWFRNK

FIRE WEATHER PLANNING FORECAST FOR SW VA...SE WV AND NW NC
NATIONAL WEATHER SERVICE BLACKSBURG VA
324 AM EDT MON APR 21 2014

.DISCUSSION...
SURFACE HIGH PRESSURE WILL LINGER OVER THE AREA TODAY...BRINGING  
WARM AND DRY WEATHER. A COLD FRONT OVER THE UPPER MIDWEST WILL SWEEP 
SOUTHEAST THROUGH THE AREA ON TUESDAY...PRECEDED AND ACCOMPANIED BY 
SCATTERED SHOWERS AND THUNDERSTORMS. HIGH PRESSURE IS EXPECTED TO 
RETURN TO THE AREA ON WEDNESDAY...BRINGING BLUSTERY AND COOLER 
WEATHER. 

ALTHOUGH DRYING CONDITIONS WILL BE GOOD TO EXCELLENT TODAY...
LIGHT AND ERRATIC WINDS MAY POSE SOME TRANSPORT ISSUES FOR
SCHEDULED PRESCRIBED BURNS DUE TO THE VARIABILITY OF LOW LEVEL
FLOW. LOW LEVEL FLOW WILL MAINLY CALM THIS MORNING EAST OF THE
BLUE RIDGE...BECOMING LIGHT EAST TO SOUTHEAST THIS AFTERNOON. WEST
OF THE BLUE RIDGE...LOW LEVEL FLOW WILL VARIABLE THIS MORNING...
BECOMING LIGHT FROM THE SOUTH AND SOUTHWEST THIS AFTERNOON.

ADDITIONAL OPPORTUNITIES FOR PRESCRIBED BURNS WHERE GOOD DRYING 
CONDITIONS WILL EXIST...AND WHERE TRANSPORT WINDS WILL BE MORE 
FAVORABLE DUE TO BETTER TRANSPORT AND CONSISTENCY OF DIRECTION
WILL OCCUR ON WEDNESDAY AFTERNOON...WITH AN EVEN MORE OPTIMAL
CONDITION EXPECTED ON THURSDAY.

VAZ015-212115-
GRAYSON-
INCLUDING THE CITIES OF...INDEPENDENCE...WHITETOP...TROUTDALE...
VOLNEY
324 AM EDT MON APR 21 2014

                      TODAY        TONIGHT      TUE          

CLOUD COVER           MCLEAR       PCLDY        MCLDY        
PRECIP TYPE           NONE         NONE         TSTMS        
CHANCE PRECIP (%)     0            0            70           
MAX/MIN TEMP          71           48           69           
MIN/MAX RH %          32           87           47           
WND20FT2MIN/EARLY(MPH)LGT/VAR      W  3         W  7         
WND20FT2MIN/LATE(MPH) NW  5        W  4         W 10G20      
PRECIP AMOUNT         0.00         0.00         0.15         
PRECIP DURATION                                 5            
PRECIP BEGIN                                    8 AM         
PRECIP END                                      CONTINUING   
MIXING HGT(FT-AGL)    5560                      5560         
TRANSPORT WND (MPH)   NW  7                     NW 28        
VENT RATE (MPH-FT)    38920                     155680       
DISPERSION (EVENING)               VERY POOR                 
LAL                   1            1            2            
HAINES INDEX          5            4            3            
ADI EARLY             28 FAIR      26 FAIR      45 GEN GOOD  
ADI LATE              36 FAIR      6 VERY POOR  80 GOOD      
MAX LVORI EARLY       4            3            5            
MAX LVORI LATE        2            4            2            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.TUESDAY NIGHT AND WEDNESDAY...MOSTLY CLEAR. A CHANCE OF SHOWERS.
LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S. MINIMUM RH
38 PERCENT. NORTHWEST WINDS 15 TO 20 MPH. 
.WEDNESDAY NIGHT AND THURSDAY...MOSTLY CLEAR. LOWS IN THE UPPER
30S. HIGHS IN THE MID 60S. MINIMUM RH 41 PERCENT. SOUTH WINDS
10 TO 15 MPH. 
.THURSDAY NIGHT AND FRIDAY...MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS AROUND 50. HIGHS AROUND 70. MINIMUM RH 58 PERCENT.
SOUTHWEST WINDS 10 TO 15 MPH. 
.FRIDAY NIGHT AND SATURDAY...PARTLY CLOUDY. LOWS IN THE UPPER
40S. HIGHS IN THE UPPER 60S. MINIMUM RH 42 PERCENT. WEST WINDS
10 TO 15 MPH. 
.SATURDAY NIGHT AND SUNDAY...PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE LOWER 70S. MINIMUM RH 46 PERCENT. WEST WINDS 5 TO
10 MPH.

.OUTLOOK 8 TO 14 DAYS...
TEMPERATURES NEAR 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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