Roanoke County Requested Product
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FNUS51 KRNK 050237 AAA
FWFRNK

FIRE WEATHER PLANNING FORECAST FOR SW VA...UPDATED
NATIONAL WEATHER SERVICE BLACKSBURG VA
1037 PM EDT SAT JUL 4 2015

.DISCUSSION...
LOW PRESSURE MOVING OFF THE MIDDLE ATLANTIC COAST WILL PUSH A COLD 
FRONT SOUTHWARD TONIGHT INTO SUNDAY. THIS WILL RESULT IN ROUNDS OF 
SHOWERS AND THUNDERSTORMS. THE UNSETTLED WEATHER WILL CONTINUE TO 
AFFECT THE REGION FOR THE NEXT SEVERAL DAYS...KEEPING A CHANCE OF 
SHOWERS AND THUNDERSTORMS IN THE FORECAST THROUGH THE FIRST PART OF 
NEXT WEEK...AS TEMPERATURES BEGIN A GRADUAL WARMING TREND. THE 
COMBINATION OF RELATIVELY LOW MIXING HEIGHTS AND LIGHT TRANSPORT 
WINDS WILL CREATE FAIR TO POOR VENTILATION AND DISPERSION THROUGH 
THE PERIOD. MINIMUM RELATIVE HUMIDITY VALUES WILL BE ABOVE 50 PERCENT 
FOR THE NEXT SEVERAL DAYS.

&&

VAZ022-050930-
ROANOKE-
INCLUDING THE CITIES OF...ROANOKE...SALEM
1037 PM EDT SAT JUL 4 2015

                      TONIGHT      SUN          SUN NIGHT    MON          

CLOUD COVER           PCLDY        MCLDY        CLOUDY       CLOUDY       
PRECIP TYPE           SHOWERS      TSTMS        TSTMS        TSTMS        
CHANCE PRECIP (%)     20           80           80           70           
MIN/MAX TEMP          64           79           64           79           
MAX/MIN RH %          95           64           98           65           
WND20FT2MIN/EARLY(MPH)LGT/VAR      LGT/VAR      LGT/VAR      LGT/VAR      
WND20FT2MIN/LATE(MPH) LGT/VAR      E  4         LGT/VAR      SE  3        
PRECIP AMOUNT         0.01         0.37         0.44         0.26         
PRECIP DURATION       0            8            11           9            
PRECIP BEGIN          6 PM         CONTINUING   CONTINUING   CONTINUING   
PRECIP END            CONTINUING   CONTINUING   CONTINUING   CONTINUING   
MIXING HGT(FT-AGL)                 4620                      4530         
TRANSPORT WND (MPH)                E  8                      S  7         
VENT RATE (MPH-FT)                 36960                     31710        
DISPERSION (EVENING)  VERY POOR                 VERY POOR                 
LAL                   1            4            4            3            
HAINES INDEX          3            3            3            3            
ADI EARLY             18 GEN POOR  8 POOR       34 FAIR      14 GEN POOR  
ADI LATE              3 VERY POOR  39 FAIR      5 VERY POOR  20 GEN POOR  
MAX LVORI EARLY       5            7            5            6            
MAX LVORI LATE        6            3            6            3            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT AND TUESDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S. HIGHS IN THE LOWER 80S.
MINIMUM RH 53 PERCENT. WEST WINDS AROUND 5 MPH. 
.TUESDAY NIGHT AND WEDNESDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S. HIGHS IN THE LOWER 80S.
MINIMUM RH 56 PERCENT. WEST WINDS 5 TO 10 MPH. 
.WEDNESDAY NIGHT AND THURSDAY...MOSTLY CLOUDY. A CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S. HIGHS IN THE
MID 80S. MINIMUM RH 54 PERCENT. WEST WINDS 5 TO 10 MPH. 
.THURSDAY NIGHT AND FRIDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S. HIGHS IN THE MID 80S.
MINIMUM RH 51 PERCENT. WEST WINDS 5 TO 10 MPH. 
.FRIDAY NIGHT AND SATURDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S. HIGHS IN THE MID 80S.
MINIMUM RH 53 PERCENT. WEST 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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