709  
FNUS54 KOHX 260857  
FWFOHX  
 
FIRE WEATHER PLANNING FORECAST FOR MIDDLE TENNESSEE  
NATIONAL WEATHER SERVICE NASHVILLE TN  
357 AM CDT WED SEP 26 2018  
   
DISCUSSION
 
 
SHOWERS AND THUNDERSTORMS WILL IMPACT THE REGION AGAIN TODAY, BUT  
TAPER OFF FROM NORTHWEST TO SOUTHEAST DURING THE DAY. CHANCES WILL  
LINGER ON THE PLATEAU AND IN THE FAR SOUTH NEAR THE ALABAMA BORDER  
OVERNIGHT AND THURSDAY, WITH SLIGHT CHANCES ELSEWHERE. MIN RH VALUES  
WILL BE ABOVE 50 PERCENT TODAY, BUT WILL BE ON THE DOWN TREND THROUGH  
THE WEEK, WITH MIN RH VALUES BETWEEN 40 AND 50 PERCENT ON FRIDAY. A  
COLD FRONT WILL MOVE THROUGH TODAY, CHANGING THE SOUTHERLY WINDS TO  
NORTHWEST WINDS AROUND 10 TO 15 MPH AS THE FRONT MOVES ACROSS THE  
AREA.  
 
TNZ501-262215-  
HIGHLAND RIM DISTRICT - NORTH-  
INCLUDING THE COUNTIES OF CHEATHAM, DAVIDSON, DICKSON, HOUSTON,  
HUMPHREYS, MONTGOMERY, ROBERTSON, RUTHERFORD, STEWART, SUMNER,  
WILLIAMSON, AND WILSON  
357 AM CDT WED SEP 26 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER MCLDY MCLDY MCLDY  
TEMP (24H TREND) 73 (-7) 58 (-10) 73  
RH % (24H TREND) 76 (-2) 86 (-13) 66  
AM 20FT WND (MPH) NW 7-11 NE 4-8  
PM 20FT WND (MPH) N 6-10 N 6-10 LGT/VAR  
PRECIP CHANCE (%) 50 30 20  
PRECIP TYPE TSTMS SHOWERS SHOWERS  
PRECIP AMOUNT (IN) 0.28 0.03 0.04  
PRECIP DUR (HR) 2 1 1  
PRECIP BEGIN 6 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (M-MSL) 1100 600  
MIXING HGT (FT-MSL) 3400 1900  
TRANSPORT WND (M/S) NW 5 NE 2  
TRANSPORT WND (MPH) NW 12 NE 5  
DISPERSION INDEX 14 6 4  
LAL 3 3 1  
HAINES INDEX 2 2 2  
MAXIMUM LVORI 2 0 0  
RH RECOVERY POOR  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
 
   
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS.  
LOWS IN THE UPPER 50S. NORTH WINDS UP TO 5 MPH.    
FRIDAY
 
PARTLY SUNNY. HIGHS IN THE UPPER 70S. MINIMUM RH  
52 PERCENT. NORTH WINDS UP TO 5 MPH.    
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTH WINDS UP  
TO 5 MPH.    
SATURDAY
 
PARTLY SUNNY. HIGHS IN THE UPPER 70S. MINIMUM RH  
56 PERCENT. NORTHEAST WINDS UP TO 5 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER  
70S. MINIMUM RH 58 PERCENT. SOUTHEAST WINDS UP TO 5 MPH.    
MONDAY
 
PARTLY CLOUDY. A 50 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS AROUND 80. MINIMUM RH  
69 PERCENT. SOUTH WINDS UP TO 5 MPH.    
TUESDAY
 
PARTLY CLOUDY. A 50 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS AROUND 80. MINIMUM RH  
69 PERCENT. SOUTH WINDS UP TO 5 MPH.  
 

 
 
TNZ502-262215-  
HIGHLAND RIM DISTRICT - SOUTH-  
INCLUDING THE COUNTIES OF BEDFORD, GILES, HARDIN, HICKMAN, LAWRENCE,  
LEWIS, LINCOLN, MARSHALL, MAURY, MOORE, PERRY, AND WAYNE  
357 AM CDT WED SEP 26 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER CLOUDY CLOUDY MCLDY  
TEMP (24H TREND) 73 (-7) 60 (-9) 74  
RH % (24H TREND) 86 (+6) 90 (-9) 70  
AM 20FT WND (MPH) W 3-7 NE 3-7  
PM 20FT WND (MPH) N 4-8 N 4-8 LGT/VAR  
PRECIP CHANCE (%) 90 70 20  
PRECIP TYPE TSTMS SHOWERS SHOWERS  
PRECIP AMOUNT (IN) 0.90 0.08 0.12  
PRECIP DUR (HR) 12 2 1  
PRECIP BEGIN 6 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (M-MSL) 1100 500  
MIXING HGT (FT-MSL) 3400 1800  
TRANSPORT WND (M/S) W 3 N 3  
TRANSPORT WND (MPH) W 6 N 7  
DISPERSION INDEX 7 5 4  
LAL 3 3 1  
HAINES INDEX 2 2 2  
MAXIMUM LVORI 0 0 0  
RH RECOVERY POOR  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
 
   
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS.  
LOWS IN THE LOWER 60S. NORTH WINDS UP TO 5 MPH.    
FRIDAY
 
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS. HIGHS IN  
THE UPPER 70S. MINIMUM RH 56 PERCENT. NORTH WINDS UP TO 5 MPH.    
FRIDAY NIGHT
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS  
AND THUNDERSTORMS. LOWS IN THE UPPER 50S. NORTH WINDS UP TO 5 MPH.    
SATURDAY
 
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE UPPER 70S. MINIMUM RH 55 PERCENT.  
NORTHEAST WINDS UP TO 5 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE LOWER  
80S. MINIMUM RH 58 PERCENT. SOUTHEAST WINDS UP TO 5 MPH.    
MONDAY
 
PARTLY CLOUDY. A 50 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE LOWER 80S. MINIMUM  
RH 67 PERCENT. SOUTH WINDS UP TO 5 MPH.    
TUESDAY
 
PARTLY CLOUDY. A 50 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE LOWER 80S. MINIMUM  
RH 65 PERCENT. SOUTH WINDS UP TO 5 MPH.  
 

 
 
TNZ400-262215-  
CUMBERLAND DISTRICT - NORTH-  
INCLUDING THE COUNTIES OF CANNON, CLAY, CUMBERLAND, DEKALB,  
FENTRESS, JACKSON, MACON, OVERTON, PICKETT, PUTNAM, SMITH,  
TROUSDALE, WARREN, AND WHITE  
357 AM CDT WED SEP 26 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER CLOUDY CLOUDY CLOUDY  
TEMP (24H TREND) 72 (-7) 61 (-8) 72  
RH % (24H TREND) 90 (+12) 95 (-4) 78  
AM 20FT WND (MPH) SW 4-8 NE 3-7  
PM 20FT WND (MPH) NW 4-8 N 4-8 LGT/VAR  
PRECIP CHANCE (%) 90 80 40  
PRECIP TYPE TSTMS SHOWERS SHOWERS  
PRECIP AMOUNT (IN) 0.61 0.11 0.18  
PRECIP DUR (HR) 11 3 2  
PRECIP BEGIN 6 AM CONTINUING CONTINUING  
PRECIP END CONTINUING CONTINUING CONTINUING  
MIXING HGT (M-MSL) 1000 700  
MIXING HGT (FT-MSL) 3300 2400  
TRANSPORT WND (M/S) NW 2 E 2  
TRANSPORT WND (MPH) NW 5 E 3  
DISPERSION INDEX 8 4 4  
LAL 3 3 2  
HAINES INDEX 2 2 2  
MAXIMUM LVORI 0 0 0  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
 
   
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS  
AND THUNDERSTORMS. LOWS IN THE LOWER 60S. NORTHWEST WINDS UP TO  
5 MPH.    
FRIDAY
 
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS. HIGHS IN  
THE MID 70S. MINIMUM RH 62 PERCENT. NORTHWEST WINDS UP TO 5 MPH.    
FRIDAY NIGHT
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS  
AND THUNDERSTORMS. LOWS IN THE UPPER 50S. NORTH WINDS UP TO 5 MPH.    
SATURDAY
 
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE UPPER 70S. MINIMUM RH 59 PERCENT.  
NORTHEAST WINDS UP TO 5 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER  
70S. MINIMUM RH 64 PERCENT. SOUTHEAST WINDS UP TO 5 MPH.    
MONDAY
 
PARTLY CLOUDY. A 40 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 70S.  
MINIMUM RH 71 PERCENT. SOUTH WINDS UP TO 5 MPH.    
TUESDAY
 
PARTLY CLOUDY. A 40 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE UPPER 70S. MINIMUM  
RH 72 PERCENT. SOUTHWEST WINDS UP TO 5 MPH.  
 

 
 
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