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FNUS51 KRNK 210803

Fire Weather Planning Forecast for SW VA...SE WV and NW NC
National Weather Service Blacksburg VA
403 AM EDT Sat Oct 21 2017


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

The influence of high pressure over the area will continue to 
maintain dry conditions across the region this weekend. A strong 
cold front will approach and then cross the region Monday through 
Tuesday, bringing good coverage of showers and some gusty winds. 
High pressure returns to the area by the latter half of the upcoming 

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.

Including the city of Wytheville
403 AM EDT Sat Oct 21 2017

                      Today        Tonight      Sun          

Cloud cover           MClear       MClear       MClear       
Precip type           None         None         None         
Chance precip (%)     0            0            0            
Min/Max Temp          74           46           72           
Max/Min RH %          40           93           46           
Wnd20ft2min/Early(mph)Lgt/Var      SE  3        SE  3        
Wnd20ft2min/Late(mph) S  5         Lgt/Var      S  5         
Precip amount         0.00         0.00         0.00         
Precip duration                                              
Precip begin                                                 
Precip end                                                   
Mixing hgt(ft-AGL)    4380                      3290         
Transport wnd (mph)   S  8                      S 12         
Vent rate (mph-ft)    35040                     39480        
Dispersion(evening)                VERY POOR                 
LAL                   1            1            1            
Haines Index          3            3            5            
ADI early             9 POOR       32 FAIR      25 FAIR      
ADI late              30 FAIR      3 VERY POOR  43 GEN GOOD  
Max LVORI early       6            3            6            
Max LVORI late        2            5            1            


.SUNDAY NIGHT AND MONDAY...Mostly cloudy. Showers likely. 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 mid 60s. Minimum RH 59 percent. Southwest winds 10 to
15 mph. 
.TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. A chance of
showers. Lows around 40. Highs in the mid 50s. Minimum RH
50 percent. West winds 10 to 15 mph. 
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the mid
30s. Highs in the mid 50s. Minimum RH 45 percent. West winds 5 to
10 mph. 
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows around 40. Highs
in the lower 60s. Minimum RH 45 percent. Southwest winds 5 to
10 mph.

Temperatures near normal.  Precipitation near normal.