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FWFRNK

Fire Weather Planning Forecast for SW VA...UPDATED
National Weather Service Blacksburg VA
737 PM EDT Fri Oct 20 2017

.DISCUSSION...

...Dry weather through the weekend to give way to widespread
rainfall early next week... 

High pressure will continue to keep our weather pattern dry heading 
into and through the weekend. A potent cold front will approach and 
cross the region Monday into Tuesday, bringing a return of showers 
and gusty winds to the region. Drier weather returns to the area by 
the middle to end of next week.

Minimum relative humidity values will be in the 30 percent to 40 percent 
range, then steadily increase to well above 50 percent by Monday. Light
transport winds and a relatively shallow mixing height will create poor
dispersion and ventilation conditions into the weekend, but improving
conditions are expected as winds increase ahead of the approaching cold
front. Rainfall amounts of one half inch east of the Blue Ridge to two 
inches in the mountains are possible from Monday into Tuesday.

WVZ507-210915-
Eastern Greenbrier-
Including the cities of Lewisburg, White Sulphur Springs, 
and Alderson
737 PM EDT Fri Oct 20 2017

                      Tonight      Sat          Sat Night    Sun          

Cloud cover           Clear        MClear       PCldy        MClear       
Precip type           None         None         None         None         
Chance precip (%)     0            0            0            0            
Min/Max Temp          40           74           48           74           
Max/Min RH %          98           42           93           45           
Wnd20ft2min/Early(mph)Lgt/Var      Lgt/Var      SE  3        Lgt/Var      
Wnd20ft2min/Late(mph) Lgt/Var      S  3         SE  3        S  5         
Precip amount         0.00         0.00         0.00         0.00         
Precip duration                                                           
Precip begin                                                              
Precip end                                                                
Mixing hgt(ft-AGL)                 4260                      3710         
Transport wnd (mph)                S  7                      S 12         
Vent rate (mph-ft)                 29820                     44520        
Dispersion(evening)   VERY POOR                 VERY POOR                 
LAL                   1            1            1            1            
Haines Index          2            3            3            4            
ADI early             10 POOR      19 GEN POOR  27 FAIR      26 FAIR      
ADI late              1 VERY POOR  24 FAIR      1 VERY POOR  38 FAIR      
Max LVORI early       4            7            3            5            
Max LVORI late        5            2            5            1            

REMARKS...None.

.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT AND MONDAY...Mostly cloudy. A chance of showers.
Lows in the lower 50s. Highs in the upper 60s. Minimum RH
71 percent. Southeast winds 5 to 10 mph. 
.MONDAY NIGHT AND TUESDAY...Showers. Lows in the mid 50s. Highs
in the lower 60s. Minimum RH 66 percent. Southwest winds 5 to
10 mph. 
.TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. A chance of
showers. Cooler. Lows in the upper 30s. Highs in the lower 50s.
Minimum RH 53 percent. West winds 10 to 15 mph. 
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the lower
30s. Highs in the lower 50s. Minimum RH 48 percent. West winds
5 to 10 mph. 
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the upper 30s.
Highs in the lower 60s. Minimum RH 47 percent. Southwest winds
5 to 10 mph.

.OUTLOOK 8 TO 14 DAYS...
Temperatures near normal.  Precipitation near normal.