Roanoke 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.

VAZ022-212115-
ROANOKE-
INCLUDING THE CITIES OF...ROANOKE...SALEM
324 AM EDT MON APR 21 2014

                      TODAY        TONIGHT      TUE          

CLOUD COVER           MCLEAR       PCLDY        MCLDY        
PRECIP TYPE           NONE         NONE         TSTMS        
CHANCE PRECIP (%)     0            0            60           
MAX/MIN TEMP          76           49           75           
MIN/MAX RH %          25           84           40           
WND20FT2MIN/EARLY(MPH)LGT/VAR      S  4         W  5         
WND20FT2MIN/LATE(MPH) SE  3        W  3         W  9G20      
PRECIP AMOUNT         0.00         0.00         0.13         
PRECIP DURATION                                 4            
PRECIP BEGIN                                    8 AM         
PRECIP END                                      CONTINUING   
MIXING HGT(FT-AGL)    5410                      6330         
TRANSPORT WND (MPH)   SW  5                     W 25         
VENT RATE (MPH-FT)    27050                     158250       
DISPERSION (EVENING)               POOR                      
LAL                   1            1            2            
HAINES INDEX          5            4            4            
ADI EARLY             4 VERY POOR  22 FAIR      38 FAIR      
ADI LATE              18 GEN POOR  1 VERY POOR  78 GOOD      
MAX LVORI EARLY       6            3            6            
MAX LVORI LATE        2            4            1            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.TUESDAY NIGHT AND WEDNESDAY...MOSTLY CLEAR. A CHANCE OF SHOWERS.
LOWS IN THE MID 40S. HIGHS IN THE MID 60S. MINIMUM RH 33 PERCENT.
NORTHWEST WINDS 10 TO 15 MPH. 
.WEDNESDAY NIGHT AND THURSDAY...MOSTLY CLEAR. LOWS AROUND 40.
HIGHS IN THE UPPER 60S. MINIMUM RH 37 PERCENT. SOUTHWEST WINDS
10 TO 15 MPH. 
.THURSDAY NIGHT AND FRIDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S. MINIMUM RH
51 PERCENT. SOUTHWEST WINDS 5 TO 10 MPH. 
.FRIDAY NIGHT AND SATURDAY...PARTLY CLOUDY. LOWS IN THE LOWER
50S. HIGHS IN THE MID 70S. MINIMUM RH 38 PERCENT. WEST WINDS 5 TO
10 MPH. 
.SATURDAY NIGHT AND SUNDAY...PARTLY CLOUDY. LOWS IN THE UPPER
40S. HIGHS IN THE MID 70S. MINIMUM RH 42 PERCENT. NORTHWEST 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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