National Weather Service Weather Forecast Office

Fire Weather Forecast (Lee County)

LAST UPDATED: 223 PM CDT SAT MAY 18 2013

.DISCUSSION... A CHANCE OF SHOWERS AND THUNDERSTORMS WILL OCCUR
TONIGHT ACROSS MUCH OF THE AREA...ESPECIALLY THE EASTERN HALF OF
WEST TENNESSEE INTO NORTHEAST MISSISSIPPI. OTHERWISE HIGH
PRESSURE IN THE UPPER ATMOSPHERE WILL BUILD OVER THE MIDSOUTH
FROM THE WEST THROUGH SUNDAY RESULTING IN MOSTLY RAIN FREE
WEATHER. THE UPPER LEVEL HIGH PRESSURE SYSTEM WILL MOVE TO THE
EAST OF THE MIDSOUTH MONDAY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS MAINLY ALONG AND WEST OF THE MISSISSIPPI RIVER. A
SOUTH TO SOUTHWEST LOW LEVEL WIND FLOW WILL CONTINUE TO PUSH WARM
AND MOIST AIR INTO THE REGION THROUGH MONDAY. SHOWERS AND
THUNDERSTORMS WILL BECOME MORE LIKELY FROM THE NORTHWEST TUESDAY
AND TUESDAY NIGHT AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES
INTO THE CENTRAL PLAINS.

                      TONIGHT      SUN          SUN NIGHT    MON

CLOUD COVER           PCLDY        PCLDY        PCLDY        PCLDY        
PRECIP CHANCE (%)     0            0            0            20           
PRECIP TYPE           NONE         NONE         NONE         TSTMS        
PRECIP AMOUNT (IN)    0.00         0.00         0.00         0.01         
PRECIP DUR (HRS)                                             1            
PRECIP BEGINS                                                7 AM         
PRECIP ENDS                                                  CONTINUING   
TEMP (24H TREND)      69 (+1)      88 (+3)      69           88           
RH % (24H TREND)      93 (-6)      49 (-11)     90           54           
AM 20 FT WIND (MPH)                S 7-11                    S 8-12       
PM 20 FT WIND (MPH)   S 3-7        S 12-16 G21  S 10-14 G20  S 9-13       
MIXING HGT (M-AGL)                 977                       1001         
MIXING HGT (FT-AGL)                3206                      3283         
MIXING HGT (M-MSL)                 1039                      1063         
MIXING HGT (FT-MSL)                3410                      3486         
TRANSPORT WND (M/S)                S 12                      SW  8        
TRANSPORT WND (MPH)                S 28                      SW 18        
VENT INDEX (M2/S)                  12468                     8504         
CATEGORY DAY                       4                         4            
500M MIX HGT TEMP (F)              80                        77           
500M TSPT WIND (M/S)               S  9                      S  8         
500M TSPT WIND (MPH)               S 20                      S 18         
DISPERSION INDEX      24           65           50           60           
LAL                   3            1            2            3            
LASI                  4            4            4            3            
LVORI                 2            2            0            0            
STABILITY             F            C            E            B            
STAGNATION INDEX      1            0            0            0