FNUS51 KRNK 211907
FWFRNK

FIRE WEATHER PLANNING FORECAST FOR SW VA...SE WV AND NW NC
NATIONAL WEATHER SERVICE BLACKSBURG VA
307 PM EDT TUE MAY 21 2013

.DISCUSSION...

FIRE WEATHER THREATS WILL REMAIN LOW INTO THURSDAY...WITH 
SHOWERS AND THUNDERSTORMS IN THE FORECAST. LOW PRESSURE ALOFT
ACROSS SOUTHERN VIRGINIA WILL PUSH EAST INTO THE ATLANTIC
OCEAN TONIGHT. A LARGE LOW PRESSURE SYSTEM WILL TRACK FROM 
THE CENTRAL PLAINS INTO THE GREAT LAKES BY THURSDAY. THIS 
SYSTEM WILL PUSH A COLD FRONT THROUGH THE AREA THURSDAY...FOLLOWED 
BY HIGH PRESSURE ON FRIDAY.

RELATIVE HUMIDITY AS LOW AS THE 40 AND 50S THIS AFTERNOON WILL
REBOUND QUICKLY TONIGHT TO MAXIMUM FROM 85 TO 100 PERCENT. MINIMUM
RELATIVE HUMIDITY WEDNESDAY AFTERNOON WILL VARY FROM THE MID 40S TO
AROUND 70 PERCENT ALONG SOUTHERN BLUE RIDGE.

VAZ015-220915-
GRAYSON-
INCLUDING THE CITIES OF...INDEPENDENCE...WHITETOP...TROUTDALE...
VOLNEY
307 PM EDT TUE MAY 21 2013

                      TONIGHT      WED          WED NIGHT    THU          

CLOUD COVER           PCLDY        PCLDY        MCLDY        PCLDY        
PRECIP TYPE           TSTMS        TSTMS        TSTMS        TSTMS        
CHANCE PRECIP (%)     50           50           50           50           
MIN/MAX TEMP          58           78           59           71           
MAX/MIN RH %          98           55           92           53           
WND20FT2MIN/EARLY(MPH)LGT/VAR      LGT/VAR      S  6         SW  5        
WND20FT2MIN/LATE(MPH) LGT/VAR      S  6         S  5         W  7         
PRECIP AMOUNT         0.04         0.13         0.13         0.16         
PRECIP DURATION       3            2            2            2            
PRECIP BEGIN          6 PM         CONTINUING   CONTINUING   CONTINUING   
PRECIP END            CONTINUING   CONTINUING   CONTINUING   CONTINUING   
MIXING HGT(FT-AGL)                 6670                      7870         
TRANSPORT WND (MPH)                SW 16                     W 21         
VENT RATE (MPH-FT)                 106720                    165270       
DISPERSION (EVENING)  POOR                      POOR                      
LAL                   3            3            3            3            
HAINES INDEX          4            4            3            4            
ADI EARLY             41 GEN GOOD  33 FAIR      49 GEN GOOD  52 GEN GOOD  
ADI LATE              5 VERY POOR  50 GEN GOOD  16 GEN POOR  70 GOOD      
MAX LVORI EARLY       4            8            4            5            
MAX LVORI LATE        6            3            4            1            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT AND FRIDAY...MOSTLY CLOUDY. LOWS IN THE LOWER
50S. HIGHS IN THE MID 60S. MINIMUM RH 55 PERCENT. NORTHWEST WINDS
10 TO 15 MPH. 
.FRIDAY NIGHT AND SATURDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S.
HIGHS IN THE MID 60S. MINIMUM RH 47 PERCENT. NORTHWEST WINDS
10 TO 15 MPH. 
.SATURDAY NIGHT AND SUNDAY...MOSTLY CLOUDY. LOWS IN THE UPPER
40S. HIGHS IN THE UPPER 60S. MINIMUM RH 56 PERCENT. SOUTH WINDS
AROUND 5 MPH. 
.SUNDAY NIGHT AND MONDAY...MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 60S. MINIMUM RH
65 PERCENT. SOUTH WINDS AROUND 5 MPH. 
.MONDAY NIGHT AND TUESDAY...MOSTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS AROUND 70. MINIMUM RH 65 PERCENT. SOUTH WINDS AROUND 5 MPH.

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