Middle Tennessee Fire Weather

The National Weather Service Fire Weather Program emerged in response to a need for weather support to large and dangerous wildfires. This service is provided to federal and state land management agencies for the prevention, suppression, and management of forest and rangeland fires. The National Weather Service Forecast Office in Nashville provides year-round fire weather forecasts for most of Middle Tennessee. Routine fire weather forecasts are issued daily for Tennessee Division of Forestry Districts 4 and 5.

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Hourly Weather Forecast	Fire Weather Planning Forecast
	000 FNUS54 KOHX 150828 FWFOHX Fire Weather Planning Forecast for Middle Tennessee National Weather Service Nashville TN 328 AM CDT Sat Aug 15 2020 .DISCUSSION... Upper level axis will shift to the east of the mid state by late afternoon. Still looking at favorable cape to cap ratios late today but moisture levels will be on the decrease, especially to the west of the Plateau. Furthermore, net subsidence should be the rule across western and central areas. Therefore, rainfall chances will only be included across the Plateau today, with max values of just 40 percent. On Sunday, a fropa will occur. Moisture is rather limited so just 20 percent chance of showers and tstms will be included. In the ext fcst, upper troughing to persist through the period. This will be accompanies by off and on 20-40 percent chances of showers and possible thunderstorm. TNZ005>008-023>028-059-062-161200- Cheatham-Davidson-Dickson-Houston-Humphreys-Montgomery-Robertson- Rutherford-Stewart-Sumner-Williamson-Wilson- Including the cities of Ashland City, Brentwood, Clarksville, Dickson, Dover, Erin, Franklin, Gallatin, Goodlettsville, Hendersonville, Kingston Springs, La Vergne, Lebanon, McEwen, Mount Juliet, Murfreesboro, Nashville, New Johnsonville, Smyrna, Springfield, Tennessee Ridge, and Waverly 328 AM CDT Sat Aug 15 2020 Today Tonight Sun Cloud Cover Pcldy Mclear Pcldy Temp (24H Trend) 87 (+1) 69 (0) 86 RH % (24H Trend) 58 (-7) 94 (-4) 59 AM 20FT Wnd (mph) N 4-8 NW 3-7 PM 20FT Wnd (mph) N 4-8 N 4-8 NW 6-10 Precip Chance (%) 10 0 20 Precip Type Tstms None Tstms Precip Amount (in) 0.00 0.00 0.02 Precip Dur (hr) 1 1 Precip Begin 6 AM 12 PM Precip End 3 PM 6 PM Mixing Hgt (m-msl) 1800 1800 Mixing Hgt (ft-msl) 5800 6100 Transport Wnd (m/s) N 6 NW 5 Transport Wnd (mph) N 13 NW 10 Vent Rate (m/s-m) 11140 8782 Category Day 4 4 Dispersion Index 41 6 30 LAL 1 1 2 Haines Index 3 4 4 Maximum LVORI 10 10 10 RH Recovery Excellent Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .SUNDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds up to 5 mph. .MONDAY...Mostly sunny. Highs in the upper 80s. Minimum RH 50 percent. North winds up to 5 mph. .MONDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds up to 5 mph. .TUESDAY...Mostly sunny with a 20 percent chance of showers. Highs in the mid 80s. Minimum RH 53 percent. North winds up to 5 mph. .WEDNESDAY...Mostly clear. Lows in the lower 60s. Highs in the mid 80s. Minimum RH 57 percent. Northeast winds up to 5 mph. .THURSDAY...Partly cloudy. A 40 percent chance of showers and thunderstorms. Lows in the lower 60s. Highs in the mid 80s. Minimum RH 58 percent. East winds up to 5 mph. .FRIDAY...Partly cloudy. A 40 percent chance of showers and thunderstorms. Lows in the mid 60s. Highs in the mid 80s. Minimum RH 59 percent. South winds up to 5 mph. $$ TNZ009>011-029>034-063>066-078-080-161200- Cannon-Clay-Cumberland-De Kalb-Fentress-Jackson-Macon-Overton- Pickett-Putnam-Smith-Trousdale-Van Buren-Warren-White- Including the cities of Allardt, Byrdstown, Carthage, Celina, Cookeville, Crossville, Gainesboro, Gordonsville, Hartsville, Jamestown, Lafayette, Livingston, McMinnville, Smithville, South Carthage, Sparta, Spencer, and Woodbury 328 AM CDT Sat Aug 15 2020 Today Tonight Sun Cloud Cover Mcldy Pcldy Pcldy Temp (24H Trend) 84 (+1) 69 (+1) 84 RH % (24H Trend) 65 (-2) 90 (-8) 62 AM 20FT Wnd (mph) LGT/VAR LGT/VAR PM 20FT Wnd (mph) N 4-8 N 4-8 NW 4-8 Precip Chance (%) 40 10 20 Precip Type Tstms None Tstms Precip Amount (in) 0.06 0.00 0.01 Precip Dur (hr) 2 1 Precip Begin 6 AM 12 PM Precip End 6 PM Continuing Mixing Hgt (m-msl) 1600 1800 Mixing Hgt (ft-msl) 5400 6100 Transport Wnd (m/s) N 6 NW 4 Transport Wnd (mph) N 13 NW 9 Vent Rate (m/s-m) 10552 7106 Category Day 4 3 Dispersion Index 33 6 22 LAL 3 1 2 Haines Index 3 3 3 Maximum LVORI 10 8 8 RH Recovery Poor Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .SUNDAY NIGHT...Partly cloudy. Lows in the mid 60s. North winds up to 5 mph. .MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH 51 percent. North winds up to 5 mph. .MONDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds up to 5 mph. .TUESDAY...Mostly sunny with a 20 percent chance of showers. Highs in the mid 80s. Minimum RH 53 percent. Northwest winds up to 5 mph. .WEDNESDAY...Mostly clear. A chance of showers. Lows in the lower 60s. Highs in the lower 80s. Minimum RH 60 percent. Northeast winds up to 5 mph. Chance of showers 30 percent. .THURSDAY...Partly cloudy. A 40 percent chance of showers and thunderstorms. Lows in the lower 60s. Highs in the lower 80s. Minimum RH 58 percent. East winds up to 5 mph. .FRIDAY...Partly cloudy. A 50 percent chance of showers and thunderstorms. Lows in the mid 60s. Highs in the lower 80s. Minimum RH 62 percent. South winds up to 5 mph. $$ TNZ056>058-060-061-075-076-092>096-161200- Bedford-Giles-Hardin-Hickman-Lawrence-Lewis-Lincoln-Marshall-Maury- Moore-Perry-Wayne- Including the cities of Centerville, Clifton, Columbia, Fayetteville, Hohenwald, Lawrenceburg, Lewisburg, Linden, Lobelville, Lynchburg, Olive Hill, Pickwick Dam, Pulaski, Savannah, Shelbyville, and Waynesboro 328 AM CDT Sat Aug 15 2020 Today Tonight Sun Cloud Cover Pcldy Mclear Pcldy Temp (24H Trend) 89 (+3) 70 (0) 88 RH % (24H Trend) 55 (-10) 90 (-7) 57 AM 20FT Wnd (mph) N 4-8 LGT/VAR PM 20FT Wnd (mph) N 4-8 N 4-8 NW 4-8 Precip Chance (%) 20 0 20 Precip Type Tstms None Tstms Precip Amount (in) 0.00 0.00 0.02 Precip Dur (hr) 1 1 Precip Begin 6 AM 12 PM Precip End 3 PM 6 PM Mixing Hgt (m-msl) 1800 1800 Mixing Hgt (ft-msl) 5800 5900 Transport Wnd (m/s) N 6 NW 5 Transport Wnd (mph) N 14 NW 12 Vent Rate (m/s-m) 11783 10562 Category Day 4 4 Dispersion Index 43 7 29 LAL 3 1 2 Haines Index 3 4 4 Maximum LVORI 10 7 8 RH Recovery Poor Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .SUNDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds up to 5 mph. .MONDAY...Mostly sunny. Highs in the upper 80s. Minimum RH 47 percent. North winds up to 5 mph. .MONDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast winds up to 5 mph. .TUESDAY...Mostly sunny with a 20 percent chance of showers. Highs in the upper 80s. Minimum RH 48 percent. North winds up to 5 mph. .WEDNESDAY...Mostly clear. A chance of showers. Lows in the mid 60s. Highs in the mid 80s. Minimum RH 55 percent. Northeast winds up to 5 mph. Chance of showers 30 percent. .THURSDAY...Partly cloudy. A 40 percent chance of showers and thunderstorms. Lows in the mid 60s. Highs in the mid 80s. Minimum RH 57 percent. East winds up to 5 mph. .FRIDAY...Partly cloudy. A 50 percent chance of showers and thunderstorms. Lows in the mid 60s. Highs in the mid 80s. Minimum RH 59 percent. South winds up to 5 mph. $$ TNZ077-079-097-161200- Coffee-Franklin-Grundy- Including the cities of Altamont, Coalmont, Cowan, Decherd, Estill Springs, Manchester, Sewanee, Tullahoma, and Winchester 328 AM CDT Sat Aug 15 2020 Today Tonight Sun Cloud Cover Mcldy Mclear Pcldy Temp (24H Trend) 84 (+1) 69 (0) 86 RH % (24H Trend) 63 (-3) 87 (-10) 58 AM 20FT Wnd (mph) NW 3-7 LGT/VAR PM 20FT Wnd (mph) N 4-8 N 4-8 NW 4-8 Precip Chance (%) 30 10 20 Precip Type Tstms None Tstms Precip Amount (in) 0.06 0.00 0.00 Precip Dur (hr) 2 0 Precip Begin 6 AM 2 PM Precip End 6 PM Continuing Mixing Hgt (m-msl) 1600 1600 Mixing Hgt (ft-msl) 5200 5200 Transport Wnd (m/s) N 7 NW 4 Transport Wnd (mph) N 15 NW 8 Vent Rate (m/s-m) 11242 6866 Category Day 4 3 Dispersion Index 35 7 26 LAL 3 1 2 Haines Index 3 3 3 Maximum LVORI 10 6 7 RH Recovery Poor Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .SUNDAY NIGHT...Partly cloudy. Lows in the mid 60s. North winds up to 5 mph. .MONDAY...Mostly sunny. Highs in the mid 80s. Minimum RH 50 percent. North winds 5 to 10 mph. .MONDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast winds up to 5 mph. .TUESDAY...Mostly sunny with a 20 percent chance of showers. Highs in the upper 80s. Minimum RH 46 percent. North winds up to 5 mph. .WEDNESDAY...Mostly clear. A chance of showers. Lows in the mid 60s. Highs in the mid 80s. Minimum RH 57 percent. Northeast winds up to 5 mph. Chance of showers 30 percent. .THURSDAY...Partly cloudy. A 40 percent chance of showers and thunderstorms. Lows in the mid 60s. Highs in the mid 80s. Minimum RH 57 percent. Southeast winds up to 5 mph. .FRIDAY...Partly cloudy. A 50 percent chance of showers and thunderstorms. Lows in the mid 60s. Highs in the lower 80s. Minimum RH 61 percent. South winds up to 5 mph. $$ 21
Digital Tabular Forecast

Minimum Potential Accumulation Expect at least this much. This is what we see as the least amount of snow the storm can produce. This information is for advance planning ahead of the storm. It is provided out as far as three days. However, when the snow starts to fall, this will be discontinued to focus on the forecast snow amount. Most Likely Snow Accumulation Represents our official snow forecast in inches within the next one to three days. The snowfall amounts are provided in point (single number) and ranges (1-2", 2-4", etc.). You can toggle between the two by hovering over the "Point" and "Range" text above the image. The point amount is our forecast but the range for the "most likely" represents the forecast uncertainty in predefined ranges. Maximum Potential Accumulation What you should be prepared for. This is what we see as the storm's maximum potential snowfall accumulation. This information is for advance planning ahead of the storm. It is provided out as far as three days. However, when the snow starts to fall, this will be discontinued to focus on the forecast snow amount.

Short to Long-Range Forecast

Days 1-2 Forecast Precipitation	Days 1-3 Forecast Precipitation


Days 4-5 Forecast Precipitation	Days 6-7 Forecast Precipitation


Days 6-10
Temperature	Precipitation


Days 8-14
TEMPERATURE	PRECIPITATION


Week 3-4
TEMPERATURE	PRECIPITATION