Roanoke County Requested Product
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FNUS51 KRNK 310828
FWFRNK

FIRE WEATHER PLANNING FORECAST FOR SW VA...SE WV AND NW NC
NATIONAL WEATHER SERVICE BLACKSBURG VA
428 AM EDT MON AUG 31 2015

.DISCUSSION...
AN UPPER LEVEL DISTURBANCE WILL PASS EAST ACROSS THE CAROLINAS 
THIS MORNING...RADIATING SCATTERED LIGHT SHOWERS ACROSS THE 
FORECAST AREA. RAINFALL AMOUNTS WILL REMAIN LIGHT...IN MANY 
CASES JUST ENOUGH TO WET THE SURFACE. THIS DISTURBANCE WILL 
EXIT THE AREA BY EARLY AFTERNOON...WITH RAINFALL TRANSITIONING 
TO SPOTTY SHOWERS TRIGGERED BY AFTERNOON HEATING...MAINLY FOR 
THE MOUNTAINS. CLOUDS WILL REMAIN WIDESPREAD THROUGH THE DAY...
BUT WILL SCATTER TONIGHT. 

UPPER LEVEL HIGH PRESSURE WILL THEN STRENGTHEN AND KEEP US IN 
A RATHER STAGNANT PATTERN...MAINTAINING A CHANCE FOR AFTERNOON 
AND EVENING SHOWERS AND THUNDERSTORMS THROUGH THE MIDDLE OF THE 
WEEK. WIDESPREAD WETTING RAIN IS NOT EXPECTED FOR THE NEXT SEVERAL 
DAYS. VENTILATION AND DISPERSION WILL CONTINUE TO BE HAMPERED BY 
RELATIVELY LIGHT TRANSPORT WINDS. MINIMUM RELATIVE HUMIDITY VALUES 
WILL REMAIN ABOVE 40 PERCENT THROUGH THE PERIOD.

&&

VAZ022-312115-
ROANOKE-
INCLUDING THE CITIES OF...ROANOKE...SALEM
428 AM EDT MON AUG 31 2015

                      TODAY        TONIGHT      TUE          

CLOUD COVER           MCLDY        PCLDY        PCLDY        
PRECIP TYPE           TSTMS        TSTMS        NONE         
CHANCE PRECIP (%)     40           20           0            
MAX/MIN TEMP          84           64           88           
MIN/MAX RH %          53           96           48           
WND20FT2MIN/EARLY(MPH)LGT/VAR      LGT/VAR      LGT/VAR      
WND20FT2MIN/LATE(MPH) LGT/VAR      LGT/VAR      LGT/VAR      
PRECIP AMOUNT         0.02         0.00         0.00         
PRECIP DURATION       3            1                         
PRECIP BEGIN          6 AM         CONTINUING                
PRECIP END            CONTINUING   1 AM                      
MIXING HGT(FT-AGL)    5310                      5970         
TRANSPORT WND (MPH)   E  2                      E  2         
VENT RATE (MPH-FT)    10620                     11940        
DISPERSION (EVENING)               VERY POOR                 
LAL                   2            2            1            
HAINES INDEX          4            3            3            
ADI EARLY             8 POOR       6 VERY POOR  20 GEN POOR  
ADI LATE              10 POOR      2 VERY POOR  19 GEN POOR  
MAX LVORI EARLY       6            5            7            
MAX LVORI LATE        3            7            2            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.TUESDAY NIGHT AND WEDNESDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S. HIGHS IN THE MID 80S.
MINIMUM RH 55 PERCENT. NORTH WINDS AROUND 5 MPH. 
.WEDNESDAY NIGHT AND THURSDAY...MOSTLY CLOUDY. A CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE MID
80S. MINIMUM RH 51 PERCENT. NORTH WINDS AROUND 5 MPH. 
.THURSDAY NIGHT AND FRIDAY...PARTLY CLOUDY. A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE MID 80S.
MINIMUM RH 52 PERCENT. NORTHEAST WINDS AROUND 5 MPH. 
.FRIDAY NIGHT AND SATURDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE MID 60S. HIGHS IN THE MID 80S. MINIMUM RH 57 PERCENT.
EAST WINDS AROUND 5 MPH. 
.SATURDAY NIGHT AND SUNDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE LOWER 80S.
MINIMUM RH 57 PERCENT. EAST 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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