Roanoke County Requested Product
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FNUS51 KRNK 211958
FWFRNK

FIRE WEATHER PLANNING FORECAST FOR SW VA...SE WV AND NW NC
NATIONAL WEATHER SERVICE BLACKSBURG VA
358 PM EDT TUE APR 21 2015

.DISCUSSION...
WE WILL BE DEALING WITH COOL AND BREEZY/GUSTY CONDITIONS THROUGH
THURSDAY AFTERNOON. VENTILATION AND DISPERSION WILL BE VERY GOOD
THROUGH THE PERIOD. WEDNESDAY LOOKS TO FEATURE THE MOST WIND WITH
GUSTS AROUND 40 MPH AT THE HIGHER ELEVATIONS FROM THE BLUE RIDGE
WESTWARD. FUELS WILL CONTINUE TO DRY AND MINIMUM RH VALUES AROUND
30 PERCENT ARE LIKELY EAST OF THE BLUE RIDGE WEDNESDAY AFTERNOON.
THE CHANCE FOR A WETTING RAIN THIS WEEK WILL BE WITH SHOWERS AND
THUNDERSTORMS ASSOCIATED WITH A COLD FRONT MOVING THROUGH EARLY
WEDNESDAY AFTERNOON...THOUGH QPF AMOUNTS WILL BE LIGHT. ANOTHER
CHANCE FOR WETTING RAIN WILL ARRIVE THIS WEEKEND.
 
&&

VAZ022-220915-
ROANOKE-
INCLUDING THE CITIES OF...ROANOKE...SALEM
358 PM EDT TUE APR 21 2015

                      TONIGHT      WED          WED NIGHT    THU          

CLOUD COVER           MCLEAR       PCLDY        PCLDY        MCLEAR       
PRECIP TYPE           NONE         TSTMS        SHOWERS      NONE         
CHANCE PRECIP (%)     0            30           20           0            
MIN/MAX TEMP          40           70           38           64           
MAX/MIN RH %          83           31           79           21           
WND20FT2MIN/EARLY(MPH)W  7G21      W 10G31      W 13G30      W  9G21      
WND20FT2MIN/LATE(MPH) W  7G22      W 17G35      W 10G23      W 13G23      
PRECIP AMOUNT         0.00         0.04         0.01         0.00         
PRECIP DURATION                    3            0                         
PRECIP BEGIN                       7 AM         CONTINUING                
PRECIP END                         CONTINUING   9 PM                      
MIXING HGT(FT-AGL)                 7860                      7500         
TRANSPORT WND (MPH)                W 45                      W 30         
VENT RATE (MPH-FT)                 353700                    225000       
DISPERSION (EVENING)  FAIR                      GOOD                      
LAL                   1            2            1            1            
HAINES INDEX          5            4            2            3            
ADI EARLY             91 GOOD      83 GOOD      104 VERY GOOD77 GOOD      
ADI LATE              10 POOR      152 VERY GOOD45 GEN GOOD  102 VERY GOOD
MAX LVORI EARLY       2            4            1            3            
MAX LVORI LATE        3            1            3            1            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT AND FRIDAY...CLEAR. LOWS IN THE UPPER 30S. HIGHS
IN THE LOWER 60S. MINIMUM RH 33 PERCENT. NORTHWEST WINDS 15 TO
20 MPH. 
.FRIDAY NIGHT AND SATURDAY...MOSTLY CLOUDY WITH A CHANCE OF RAIN.
LOWS IN THE MID 40S. HIGHS IN THE UPPER 50S. MINIMUM RH
61 PERCENT. WEST WINDS 10 TO 15 MPH. 
.SATURDAY NIGHT AND SUNDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S. MINIMUM RH
48 PERCENT. NORTHWEST WINDS 5 TO 10 MPH. 
.SUNDAY NIGHT AND MONDAY...PARTLY CLOUDY. LOWS IN THE LOWER 40S.
HIGHS IN THE MID 60S. MINIMUM RH 49 PERCENT. WEST WINDS 5 TO
10 MPH. 
.MONDAY NIGHT AND TUESDAY...MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE MID 40S. HIGHS AROUND 60. MINIMUM RH
61 PERCENT. NORTHWEST WINDS 5 TO 10 MPH.

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