Roanoke County Requested Product
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FNUS51 KRNK 240841
FWFRNK

FIRE WEATHER PLANNING FORECAST FOR SW VA...SE WV AND NW NC
NATIONAL WEATHER SERVICE BLACKSBURG VA
441 AM EDT THU APR 24 2014

.DISCUSSION...

...LOW HUMIDITY THIS AFTERNOON...BUT LIGHT WINDS...

HIGH PRESSURE WILL PROMOTE ONE MORE DAY OF LOW AFTERNOON
HUMIDITY. HOWEVER...WINDS WILL BE LIGHT. HUMIDITY MINIMUMS 
WILL DIP INTO THE 20-30 PERCENT RANGE DURING THE PEAK HEATING
PART OF THE AFTERNOON...WINDS LESS THAN 10 MPH. A COLD FRONT 
IS EXPECTED TO BRING WETTING SHOWERS ON FRIDAY...AMOUNTS OF 
A QUARTER INCH OR LESS.

CLOUDS WILL BE ON THE INCREASE TODAY DUE TO INCREASING 
MID AND UPPER LEVEL MOISTURE AHEAD OF FRIDAYS PREDICTED
FRONTAL PASSAGE.  SHADING TODAY WILL RANGE FROM 20 TO 60 
PERCENT...THE THICKER CLOUD COVER OCCURRING ACROSS WEST 
VIRGINIA...AND THE HIGHLANDS OF VIRGINIA.

TODAY IS DAY 8 SINCE WETTING RAINFALL. THIS HAS RESULTED IN
THE DRIEST FINE FUEL MOISTURE THAT WE HAVE SEEN SO FAR THIS
SPRING SEASON. IN SPITE OF THIS...GREEN-UP IS WELL UNDERWAY
ALONG AND EAST OF THE BLUE RIDGE.  CANOPY CLOSURE SHOULD TAKE
PLACE AT ELEVATIONS BELOW 2000 FEET BETWEEN NOW AND THE END
OF THE MONTH. ELEVATIONS ABOVE 2000 FEET WILL BE DELAYED 
UNTIL THE END OF THE FIRST WEEK OF MAY...DUE TO THE COOLER
THAN NORMAL TEMPERATURES WHICH HAVE PERSISTED FOR MUCH OF 
THIS SPRING.

VAZ022-242230-
ROANOKE-
INCLUDING THE CITIES OF...ROANOKE...SALEM
441 AM EDT THU APR 24 2014

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLEAR       PCLDY        MCLDY        
PRECIP TYPE           NONE         NONE         SHOWERS      
CHANCE PRECIP (%)     0            0            90           
MAX/MIN TEMP          71           49           72           
MIN/MAX RH %          21           79           50           
WND20FT2MIN/EARLY(MPH)LGT/VAR      S  5         S  4         
WND20FT2MIN/LATE(MPH) S  4         S  3         SW  8G17     
PRECIP AMOUNT         0.00         0.00         0.21         
PRECIP DURATION                                 6            
PRECIP BEGIN                                    7 AM         
PRECIP END                                      6 PM         
MIXING HGT(FT-AGL)    5970                      6310         
TRANSPORT WND (MPH)   SW  7                     SW 36        
VENT RATE (MPH-FT)    41790                     227160       
DISPERSION (EVENING)               POOR                      
LAL                   1            1            1            
HAINES INDEX          4            4            3            
ADI EARLY             20 GEN POOR  45 GEN GOOD  45 GEN GOOD  
ADI LATE              43 GEN GOOD  7 POOR       110 VERY GOOD
MAX LVORI EARLY       4            2            4            
MAX LVORI LATE        2            3            1            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT AND SATURDAY...MOSTLY CLEAR. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. MINIMUM RH 31 PERCENT. WEST WINDS 10 TO
15 MPH. 
.SATURDAY NIGHT AND SUNDAY...MOSTLY CLEAR. LOWS IN THE UPPER 40S.
HIGHS IN THE LOWER 70S. MINIMUM RH 45 PERCENT. WEST WINDS 5 TO
10 MPH. 
.SUNDAY NIGHT AND MONDAY...MOSTLY CLOUDY WITH A CHANCE OF RAIN.
LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S. MINIMUM RH
51 PERCENT. SOUTHEAST WINDS AROUND 5 MPH. 
.MONDAY NIGHT AND TUESDAY...CLOUDY WITH SHOWERS LIKELY AND A
CHANCE OF THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE LOWER 60S.
MINIMUM RH 71 PERCENT. SOUTHEAST WINDS AROUND 5 MPH. 
.TUESDAY NIGHT AND WEDNESDAY...CLOUDY WITH SHOWERS LIKELY. LOWS
AROUND 50. HIGHS IN THE MID 60S. MINIMUM RH 60 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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