FNUS51 KRNK 230845
FWFRNK

FIRE WEATHER PLANNING FORECAST FOR SW VA...SE WV AND NW NC
NATIONAL WEATHER SERVICE BLACKSBURG VA
445 AM EDT THU MAY 23 2013

.DISCUSSION...

SHOWERS WILL PASS ACROSS THE AREA THIS MORNING...WITH SOME 
OF THESE SHOWERS DEVELOPING INTO THUNDERSTORMS WITH AFTERNOON 
HEATING. AFTERNOON RH VALUES WILL REMAIN ABOVE 50 PERCENT FOR 
MOST LOCATIONS. A COLD FRONT WILL PASS ACROSS THE REGION LATE 
THIS EVENING...WHICH WILL BRING SIGNIFICANTLY COOLER AIR INTO 
THE AREA FOR THE WEEKEND. 

HIGH PRESSURE WILL BUILD INTO THE AREA FRIDAY MORNING AND 
AFTERNOON ON AN 8 MB PRESSURE GRADIENT...WHICH WILL RESULT 
IN NORTHWEST WIND GUSTS RANGING FROM AROUND 30 MPH FOR MOST 
LOCATIONS TO AS HIGH AS 45 MPH ACROSS THE HIGHER RIDGELINES 
ON FRIDAY AFTERNOON.

VAZ043-232045-
HENRY-
INCLUDING THE CITIES OF...MARTINSVILLE
445 AM EDT THU MAY 23 2013

                      TODAY        TONIGHT      FRI          

CLOUD COVER           MCLDY        MCLDY        PCLDY        
PRECIP TYPE           TSTMS        TSTMS        SHOWERS      
CHANCE PRECIP (%)     80           50           0            
MAX/MIN TEMP          79           56           71           
MIN/MAX RH %          61           88           28           
WND20FT2MIN/EARLY(MPH)LGT/VAR      LGT/VAR      NW 10G21     
WND20FT2MIN/LATE(MPH) LGT/VAR      NW  7        NW 13G23     
PRECIP AMOUNT         0.47         0.05         0.00         
PRECIP DURATION       7            3                         
PRECIP BEGIN          6 AM         CONTINUING                
PRECIP END            CONTINUING   6 AM                      
MIXING HGT(FT-AGL)    4830                      5590         
TRANSPORT WND (MPH)   SW  6                     N 33         
VENT RATE (MPH-FT)    28980                     184470       
DISPERSION (EVENING)               POOR                      
LAL                   5            3            1            
HAINES INDEX          3            3            4            
ADI EARLY             17 GEN POOR  19 GEN POOR  83 GOOD      
ADI LATE              19 GEN POOR  24 FAIR      104 VERY GOOD
MAX LVORI EARLY       8            5            4            
MAX LVORI LATE        3            5            1            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT AND SATURDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S.
HIGHS IN THE LOWER 70S. MINIMUM RH 28 PERCENT. NORTHWEST WINDS
5 TO 10 MPH. 
.SATURDAY NIGHT AND SUNDAY...PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE LOWER 70S. MINIMUM RH 36 PERCENT. NORTHWEST WINDS
AROUND 5 MPH. 
.SUNDAY NIGHT AND MONDAY...MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. MINIMUM
RH 54 PERCENT. SOUTHEAST WINDS AROUND 5 MPH. 
.MONDAY NIGHT AND TUESDAY...MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE MID 70S. MINIMUM RH
55 PERCENT. SOUTHEAST WINDS AROUND 5 MPH. 
.TUESDAY NIGHT AND WEDNESDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 70S.
MINIMUM RH 51 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.

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