Grayson 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. 

&&

VAZ015-290930-
GRAYSON-
INCLUDING THE CITIES OF...INDEPENDENCE...WHITETOP...TROUTDALE...
VOLNEY
422 PM EST WED JAN 28 2015

                      TONIGHT      THU          THU NIGHT    FRI          

CLOUD COVER           MCLEAR       PCLDY        MCLDY        PCLDY        
PRECIP TYPE           NONE         RAIN         SHOWERS      SNOW SHOWERS 
CHANCE PRECIP (%)     0            50           60           30           
MIN/MAX TEMP          22           45           24           33           
MAX/MIN RH %          76           44           84           40           
WND20FT2MIN/EARLY(MPH)LGT/VAR      S  5         W 10G29      NW 19G39     
WND20FT2MIN/LATE(MPH) S  3         SW 10G27     NW 16G39     NW 18G35     
PRECIP AMOUNT         0.00         0.01         0.07         0.00         
PRECIP DURATION                    2            5            2            
PRECIP BEGIN                       12 PM        CONTINUING   CONTINUING   
PRECIP END                         CONTINUING   CONTINUING   4 PM         
MIXING HGT(FT-AGL)                 2490                      3940         
TRANSPORT WND (MPH)                SW 26                     NW 40        
VENT RATE (MPH-FT)                 64740                     157600       
DISPERSION (EVENING)  VERY POOR                 FAIR                      
LAL                   1            1            1            1            
HAINES INDEX          4            4            2            2            
ADI EARLY             3 VERY POOR  13 GEN POOR  30 FAIR      104 VERY GOOD
ADI LATE              6 VERY POOR  44 GEN GOOD  65 GOOD      101 VERY GOOD
MAX LVORI EARLY       2            3            3            3            
MAX LVORI LATE        3            2            3            1            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT AND SATURDAY...BREEZY. MOSTLY CLEAR. LOWS AROUND
17. HIGHS IN THE UPPER 30S. MINIMUM RH 27 PERCENT. WEST WINDS
20 TO 25 MPH. 
.SATURDAY NIGHT AND SUNDAY...CLOUDY WITH A CHANCE OF RAIN AND
SNOW. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 30S. MINIMUM RH
45 PERCENT. SOUTHWEST WINDS 5 TO 10 MPH. 
.SUNDAY NIGHT AND MONDAY...MOSTLY CLOUDY WITH SNOW AND RAIN
LIKELY. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 30S. MINIMUM RH
50 PERCENT. NORTHWEST WINDS 15 TO 20 MPH. 
.MONDAY NIGHT AND TUESDAY...PARTLY CLOUDY. A CHANCE OF SNOW
SHOWERS. LOWS AROUND 17. HIGHS IN THE LOWER 30S. MINIMUM RH
49 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 IN THE UPPER 30S.
MINIMUM RH 55 PERCENT. WEST WINDS 5 TO 10 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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