Roanoke County Requested Product
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FNUS51 KRNK 282122
FWFRNK

FIRE WEATHER PLANNING FORECAST FOR SW VA...SE WV AND NW NC
NATIONAL WEATHER SERVICE BLACKSBURG VA
422 PM EST WED JAN 28 2015

.DISCUSSION...

...BECOMING VERY WINDY THURSDAY NIGHT AND FRIDAY...

A FAST MOVING ALBERTA CLIPPER WILL SWING A COLD FRONT THROUGH
THE REGION THURSDAY AFTERNOON.  THE FRONT WILL PASS THROUGH
THE AREA MAINLY DRY...BUT SNOW SHOWERS WILL DEVELOP IN NORTHWEST 
FLOW BEHIND THE FRONT WITH SOME LIGHT ACCUMULATION ALONG THE 
FAR WESTERN SLOPES OF THE APPALACHIANS THROUGH FRIDAY MORNING.

THE NORTHWEST WINDS BEHIND THE FRONT WILL INCREASE THURSDAY 
EVENING AND BECOME VERY STRONG AND GUSTY. GUSTS OVER 40 MPH 
CAN BE EXPECTED AT THE HIGHER ELEVATIONS FROM THE BLUE RIDGE 
WEST THROUGH FRIDAY...BEFORE THE WINDS SUBSIDE FRIDAY NIGHT.

THE NEXT APPRECIABLE CHANCE FOR WETTING RAIN/SNOW WILL COME 
WITH A STORM SYSTEM THAT WILL APPROACH FROM THE SOUTHWEST
LATE IN THE WEEKEND. 

&&

VAZ022-290930-
ROANOKE-
INCLUDING THE CITIES OF...ROANOKE...SALEM
422 PM EST WED JAN 28 2015

                      TONIGHT      THU          THU NIGHT    FRI          

CLOUD COVER           MCLEAR       MCLDY        MCLDY        MCLEAR       
PRECIP TYPE           NONE         RAIN         SHOWERS      NONE         
CHANCE PRECIP (%)     0            50           40           0            
MIN/MAX TEMP          18           43           28           36           
MAX/MIN RH %          81           46           76           35           
WND20FT2MIN/EARLY(MPH)LGT/VAR      S  3         SW  7G25     NW 17G36     
WND20FT2MIN/LATE(MPH) LGT/VAR      S  8G17      NW 13G34     NW 17G35     
PRECIP AMOUNT         0.00         0.04         0.02         0.00         
PRECIP DURATION                    1            2                         
PRECIP BEGIN                       1 PM         CONTINUING                
PRECIP END                         CONTINUING   4 AM                      
MIXING HGT(FT-AGL)                 2400                      4850         
TRANSPORT WND (MPH)                S 21                      NW 38        
VENT RATE (MPH-FT)                 50400                     184300       
DISPERSION (EVENING)  VERY POOR                 FAIR                      
LAL                   1            1            1            1            
HAINES INDEX          4            4            2            2            
ADI EARLY             3 VERY POOR  21 FAIR      21 FAIR      99 GOOD      
ADI LATE              2 VERY POOR  38 FAIR      47 GEN GOOD  102 VERY GOOD
MAX LVORI EARLY       2            4            3            1            
MAX LVORI LATE        3            2            3            1            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT AND SATURDAY...MOSTLY CLEAR. LOWS AROUND 17. HIGHS
IN THE UPPER 30S. MINIMUM RH 28 PERCENT. WEST WINDS 15 TO 20 MPH.
.SATURDAY NIGHT AND SUNDAY...CLOUDY WITH A CHANCE OF RAIN AND
SNOW. LOWS IN THE UPPER 20S. HIGHS AROUND 40. MINIMUM RH
47 PERCENT. SOUTHWEST WINDS 5 TO 10 MPH. 
.SUNDAY NIGHT AND MONDAY...MOSTLY CLOUDY. RAIN AND SNOW LIKELY.
LOWS IN THE UPPER 20S. HIGHS IN THE MID 30S. MINIMUM RH
43 PERCENT. NORTHWEST WINDS 10 TO 15 MPH. 
.MONDAY NIGHT AND TUESDAY...PARTLY CLOUDY. LOWS AROUND 18. HIGHS
IN THE MID 30S. MINIMUM RH 45 PERCENT. WEST WINDS 10 TO 15 MPH. 
.TUESDAY NIGHT AND WEDNESDAY...MOSTLY CLOUDY WITH A CHANCE OF
RAIN AND SNOW. LOWS IN THE LOWER 20S. HIGHS AROUND 40. MINIMUM RH
51 PERCENT. WEST WINDS AROUND 5 MPH.

.OUTLOOK 8 TO 14 DAYS...
TEMPERATURES BELOW NORMAL.  PRECIPITATION NEAR 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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