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.

VAZ022-232045-
ROANOKE-
INCLUDING THE CITIES OF...ROANOKE...SALEM
445 AM EDT THU MAY 23 2013

                      TODAY        TONIGHT      FRI          

CLOUD COVER           CLOUDY       MCLDY        PCLDY        
PRECIP TYPE           TSTMS        TSTMS        SHOWERS      
CHANCE PRECIP (%)     80           50           0            
MAX/MIN TEMP          78           54           67           
MIN/MAX RH %          53           84           27           
WND20FT2MIN/EARLY(MPH)LGT/VAR      W  5         NW 12G24     
WND20FT2MIN/LATE(MPH) LGT/VAR      NW  8G21     NW 14G26     
PRECIP AMOUNT         0.39         0.04         0.00         
PRECIP DURATION       9            3                         
PRECIP BEGIN          6 AM         CONTINUING                
PRECIP END            CONTINUING   6 AM                      
MIXING HGT(FT-AGL)    5680                      5780         
TRANSPORT WND (MPH)   SW  9                     NW 35        
VENT RATE (MPH-FT)    51120                     202300       
DISPERSION (EVENING)               POOR                      
LAL                   5            3            1            
HAINES INDEX          3            3            2            
ADI EARLY             20 GEN POOR  32 FAIR      97 GOOD      
ADI LATE              31 FAIR      37 FAIR      108 VERY GOOD
MAX LVORI EARLY       7            4            3            
MAX LVORI LATE        3            3            1            

REMARKS...NONE.

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT AND SATURDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S.
HIGHS IN THE UPPER 60S. MINIMUM RH 27 PERCENT. NORTHWEST WINDS
15 TO 20 MPH. 
.SATURDAY NIGHT AND SUNDAY...PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS AROUND 70. MINIMUM RH 36 PERCENT. NORTHWEST WINDS 5 TO
10 MPH. 
.SUNDAY NIGHT AND MONDAY...MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. MINIMUM
RH 55 PERCENT. SOUTHEAST WINDS AROUND 5 MPH. 
.MONDAY NIGHT AND TUESDAY...MOSTLY CLOUDY. A CHANCE OF SHOWERS.
LOWS IN THE MID 50S. HIGHS IN THE MID 70S. MINIMUM RH 56 PERCENT.
SOUTH WINDS AROUND 5 MPH. 
.TUESDAY NIGHT AND WEDNESDAY...MOSTLY CLOUDY. LOWS IN THE UPPER
50S. HIGHS IN THE MID 70S. MINIMUM RH 53 PERCENT. SOUTHWEST WINDS
AROUND 5 MPH.

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