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FNUS51 KRNK 190831

Fire Weather Planning Forecast for SW VA...SE WV and NW NC
National Weather Service Blacksburg VA
431 AM EDT Thu Oct 19 2017


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

A large area of high pressure will remain over the eastern part
of the U.S. through Friday before slowly sliding eastward off the
coast this weekend. Consequently, dry conditions with sunny,
warm afternoons and clear, cool nights will continue into the
weekend. Early next week a strong cold front will move into the
region as deep upper troughing develops across the eastern U.S.
This pattern change will bring widespread rainfall, possibly as 
much as 2-3 inches in some areas, followed by much cooler

Minimum afternoon relative humidity values will be in the 30 percent
range through Saturday, before a marked increase in relative humidity is
noted early next week. In addition, light and often variable transport
winds along with relative low mixing heights will result in poor
dispersion and ventilation conditions through Saturday.

Including the city of Union
431 AM EDT Thu Oct 19 2017

                      Today        Tonight      Fri          

Cloud cover           Clear        Clear        Clear        
Precip type           None         None         None         
Chance precip (%)     0            0            0            
Min/Max Temp          73           41           73           
Max/Min RH %          33           94           38           
Wnd20ft2min/Early(mph)Lgt/Var      W  3         Lgt/Var      
Wnd20ft2min/Late(mph) W  4         Lgt/Var      Lgt/Var      
Precip amount         0.00         0.00         0.00         
Precip duration                                              
Precip begin                                                 
Precip end                                                   
Mixing hgt(ft-AGL)    4050                      4060         
Transport wnd (mph)   NW 12                     NW  6        
Vent rate (mph-ft)    48600                     24360        
Dispersion(evening)                VERY POOR                 
LAL                   1            1            1            
Haines Index          4            4            4            
ADI early             27 FAIR      12 POOR      18 GEN POOR  
ADI late              36 FAIR      2 VERY POOR  23 FAIR      
Max LVORI early       5            3            7            
Max LVORI late        2            6            2            


.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows in the mid 40s.
Highs in the lower 70s. Minimum RH 40 percent. Southeast winds
around 5 mph. 
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows in the mid 40s.
Highs in the lower 70s. Minimum RH 46 percent. South winds around
5 mph. 
.SUNDAY NIGHT AND MONDAY...Mostly cloudy with a chance of
showers. Lows in the lower 50s. Highs in the upper 60s. Minimum
RH 66 percent. South winds 5 to 10 mph. 
.MONDAY NIGHT AND TUESDAY...Mostly cloudy with showers likely.
Lows in the lower 50s. Highs in the mid 60s. Minimum RH
59 percent. Southwest winds 5 to 10 mph. 
.TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. A chance of
showers. Cooler. Lows around 40. Highs in the mid 50s. Minimum RH
59 percent. West winds 5 to 10 mph.

Temperatures below normal.  Precipitation below normal.