Henry County Requested Product
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FNUS51 KRNK 240131
FWFRNK

FIRE WEATHER PLANNING FORECAST FOR SW VA...SE WV AND NW NC
NATIONAL WEATHER SERVICE BLACKSBURG VA
931 PM EDT WED APR 23 2014

.DISCUSSION...

...LOW RELATIVE HUMIDITIES AGAIN THURSDAY AFTERNOON...BUT LIGHT WINDS...

HIGH PRESSURE WILL BUILD OVER THE REGION THURSDAY. WINDS WILL DIMINISH 
TONIGHT AND BE LIGHT AND VARIABLE MUCH OF THE MORNING THURSDAY...THEN
BECOME LIGHT SOUTH DURING THE AFTERNOON AS THE HIGH PRESSURE RIDGE SHIFTS
EAST OF THE REGION. WHILE WIND WILL NOT BE AN ISSUE FOR THURSDAY...RELATIVE
HUMIDITY VALUES ARE EXPECTED TO DROP INTO CRITICAL LEVELS FOR SEVERAL
HOURS THURSDAY AFTERNOON...NAMELY INTO THE 20 TO 25 PERCENT RANGE.

A FAST MOVING COLD FRONT WILL MOVE THROUGH THE REGION FRIDAY. THIS WILL
BRING A CHANCE OF SHOWERS AND A FEW THUNDERSTORMS TO THE AREA. SIMILAR
TO THE SYSTEM ON FRIDAY...RAINFALL IS EXPECTED TO SPOTTY AND LIGHT.
AVERAGE RAINFALL AMOUNTS ARE EXPECTED TO BE 1/4 INCH OR LESS.

DRY CONDITIONS ARE EXPECTED OVER THE WEEKEND BEFORE A LARGE SLOW MOVING
LOW PRESSURE AREA BRINGS SEVERAL DAYS OF CLOUDY, RAINY, COOL CONDITIONS
TO THE REGION FOR MUCH OF NEXT WEEK.

VAZ043-240930-
HENRY-
INCLUDING THE CITIES OF...MARTINSVILLE
931 PM EDT WED APR 23 2014

                      TONIGHT      THU          THU NIGHT    FRI          

CLOUD COVER           CLEAR        MCLEAR       PCLDY        PCLDY        
PRECIP TYPE           NONE         NONE         NONE         TSTMS        
CHANCE PRECIP (%)     0            0            0            40           
MIN/MAX TEMP          34           70           50           75           
MAX/MIN RH %          88           25           94           43           
WND20FT2MIN/EARLY(MPH)NW  7        LGT/VAR      LGT/VAR      S  4         
WND20FT2MIN/LATE(MPH) NW  3        S  4         LGT/VAR      W  9         
PRECIP AMOUNT         0.00         0.00         0.00         0.13         
PRECIP DURATION                                              2            
PRECIP BEGIN                                                 6 AM         
PRECIP END                                                   5 PM         
MIXING HGT(FT-AGL)                 5090                      5780         
TRANSPORT WND (MPH)                SW  9                     W 32         
VENT RATE (MPH-FT)                 45810                     184960       
DISPERSION (EVENING)  FAIR                      VERY POOR                 
LAL                   1            1            1            3            
HAINES INDEX          5            5            4            3            
ADI EARLY             64 GOOD      7 POOR       40 FAIR      56 GEN GOOD  
ADI LATE              6 VERY POOR  38 FAIR      5 VERY POOR  105 VERY GOOD
MAX LVORI EARLY       2            6            3            5            
MAX LVORI LATE        4            2            4            1            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT AND SATURDAY...MOSTLY CLEAR. LOWS IN THE UPPER 40S.
HIGHS IN THE UPPER 70S. MINIMUM RH 31 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. NORTHEAST WINDS
AROUND 5 MPH. 
.SUNDAY NIGHT AND MONDAY...MOSTLY CLOUDY WITH A CHANCE OF RAIN.
LOWS IN THE UPPER 40S. HIGHS AROUND 70. MINIMUM RH 48 PERCENT.
SOUTHEAST WINDS AROUND 5 MPH. 
.MONDAY NIGHT AND TUESDAY...CLOUDY WITH SHOWERS LIKELY AND A
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID
60S. MINIMUM RH 68 PERCENT. SOUTHEAST WINDS AROUND 5 MPH. 
.TUESDAY NIGHT AND WEDNESDAY...MOSTLY CLOUDY WITH SHOWERS LIKELY.
LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. MINIMUM RH
56 PERCENT. SOUTH WINDS AROUND 5 MPH.

.OUTLOOK 8 TO 14 DAYS...
TEMPERATURES BELOW 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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