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FNUS51 KRNK 230920
FWFRNK

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

RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT
THIS EVENING FOR THE VIRGINIA BLUE RIDGE...INCLUDING THE 
SHENANDOAH...ROANOKE...AND NEW RIVER VALLEYS.

.DISCUSSION...

...BREEZY CONDITIONS TODAY WITH LOW RELATIVE HUMIDITY...

A COLD FRONT PASSED THROUGH THE AREA LAST NIGHT. IN ITS WAKE...
DRY BREEZY CONDITIONS HAVE DEVELOPED AND WILL CONTINUE THROUGH
THE DAY.  THE STRONGEST WINDS WILL BE FOUND NEAR THE BLUE RIDGE
PARKWAY...FROM SOUTHWESTERN VIRGINIA...NORTH INTO THE SHENANDOAH
VALLEY...WHERE SUSTAINED WINDS OF 15 TO 20 MPH...GUSTS OF 25
TO 30 MPH...AND AN AFTERNOON HUMIDITY MINIMUM NEAR 20 PERCENT 
WILL BE COMMON. FOR MANY AREAS NEAR THE BLUE RIDGE...IT HAS BEEN
7 DAYS SINCE MEASURABLE RAINFALL HAS OCCURRED.  THIS HAS ALLOWED
FINE FUEL MOISTURE TO DROP BELOW 7 PERCENT.  CONCERN TODAY IS 
FOR RAPID FIRE SPREAD IF A WILDFIRE OCCURS.

HIGH PRESSURE WILL BUILD OVERHEAD BY THURSDAY MORNING. THIS WILL
RESULT IN DIMINISHING WINDS TONIGHT...LIGHT AND VARIABLE WINDS
THURSDAY.  IT WILL REMAIN DRY THURSDAY WITH NO RAIN EXPECTED. 

THE NEXT...CHANCE...OF SHOWERS IS FRIDAY.  A COLD FRONT IS 
FORECAST TO CROSS THE AREA FRIDAY MORNING.  SIMILAR TO THE LAST
FRONTAL PASSAGE...RAINFALL IS NOT EXPECTED TO BE WIDESPREAD WITH
AMOUNTS OF A TENTH OF AN INCH OR LESS.

VAZ044-232145-
PITTSYLVANIA-
INCLUDING THE CITIES OF...DANVILLE
520 AM EDT WED APR 23 2014

                      TODAY        TONIGHT      THU          

CLOUD COVER           CLEAR        CLEAR        MCLEAR       
PRECIP TYPE           NONE         NONE         NONE         
CHANCE PRECIP (%)     0            0            0            
MAX/MIN TEMP          68           35           69           
MIN/MAX RH %          21           85           31           
WND20FT2MIN/EARLY(MPH)NW  8G19     NW  6        LGT/VAR      
WND20FT2MIN/LATE(MPH) NW 12G21     LGT/VAR      SW  4        
PRECIP AMOUNT         0.00         0.00         0.00         
PRECIP DURATION                                              
PRECIP BEGIN                                                 
PRECIP END                                                   
MIXING HGT(FT-AGL)    5790                      4930         
TRANSPORT WND (MPH)   NW 18                     SW  9        
VENT RATE (MPH-FT)    104220                    44370        
DISPERSION (EVENING)               POOR                      
LAL                   1            1            1            
HAINES INDEX          4            5            5            
ADI EARLY             56 GEN GOOD  71 GOOD      15 GEN POOR  
ADI LATE              68 GOOD      1 VERY POOR  37 FAIR      
MAX LVORI EARLY       3            2            7            
MAX LVORI LATE        1            4            2            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT AND FRIDAY...MOSTLY CLOUDY. SHOWERS LIKELY AND A
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID
70S. MINIMUM RH 48 PERCENT. SOUTHWEST WINDS 5 TO 10 MPH. 
.FRIDAY NIGHT AND SATURDAY...MOSTLY CLEAR. LOWS IN THE LOWER 50S.
HIGHS IN THE UPPER 70S. MINIMUM RH 29 PERCENT. WEST WINDS 5 TO
10 MPH. 
.SATURDAY NIGHT AND SUNDAY...PARTLY CLOUDY. LOWS IN THE UPPER
40S. HIGHS IN THE LOWER 70S. MINIMUM RH 41 PERCENT. NORTH WINDS
5 TO 10 MPH. 
.SUNDAY NIGHT AND MONDAY...MOSTLY CLOUDY WITH A CHANCE OF RAIN.
LOWS IN THE MID 40S. HIGHS IN THE MID 60S. MINIMUM RH 52 PERCENT.
EAST WINDS AROUND 5 MPH. 
.MONDAY NIGHT AND TUESDAY...MOSTLY CLOUDY WITH A CHANCE OF RAIN.
LOWS IN THE UPPER 40S. HIGHS AROUND 60. MINIMUM RH 85 PERCENT.
EAST 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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