National Weather Service United States Department of Commerce

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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000
FNUS54 KOHX 180645
FWFOHX

Fire Weather Planning Forecast for Middle Tennessee
National Weather Service Nashville TN
145 AM CDT Fri Sep 18 2020

.DISCUSSION...A prolonged stretch of mild, rain-free weather begins
today across Middle Tennessee. High pressure will start building into
the mid state and will be the dominant weather feature for at least
the next 7 days. There are no fire weather concerns at this time.

TNZ005>008-023>028-059-062-182215-
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
145 AM CDT Fri Sep 18 2020

Today Tonight Sat

Cloud Cover Pcldy Mclear Mclear
Temp (24H Trend) 74 (-8) 50 (-12) 73
RH % (24H Trend) 51 (-3) 85 (-5) 49
AM 20FT Wnd (mph) N 9-13 G20 NE 6-10
PM 20FT Wnd (mph) N 10-14 G20 N 10-14 NE 6-10
Precip Chance (%) 0 0 0
Precip Type None None None
Precip Amount (in) 0.00 0.00 0.00
Precip Dur (hr)
Precip Begin
Precip End
Mixing Hgt (m-msl) 1400 1500
Mixing Hgt (ft-msl) 4600 5100
Transport Wnd (m/s) NE 9 NE 5
Transport Wnd (mph) NE 21 NE 12
Vent Rate (m/s-m) 12913 8431
Category Day 4 3
Dispersion Index 52 8 31
LAL 1 1 1
Haines Index 5 4 4
Maximum LVORI 8 6 7
RH Recovery Moderate

Remarks...None.

.FORECAST FOR DAYS 3 THROUGH 7...

.SATURDAY NIGHT...Mostly clear. Lows around 50. Northeast winds up
to 5 mph.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Minimum RH 49 percent.
Northeast winds up to 5 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. East winds up
to 5 mph.
.MONDAY...Mostly sunny. Highs in the mid 70s. Minimum RH 46 percent.
Southeast winds up to 5 mph shifting to the east in the afternoon.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s. Minimum RH 46 percent. Northeast winds up to 5 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs in the upper
70s. Minimum RH 46 percent. East winds up to 5 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs around 80.
Minimum RH 47 percent. Southwest winds up to 5 mph.

$$

TNZ009>011-029>034-063>066-078-080-182215-
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
145 AM CDT Fri Sep 18 2020

Today Tonight Sat

Cloud Cover Pcldy Pcldy Pcldy
Temp (24H Trend) 72 (-7) 50 (-11) 73
RH % (24H Trend) 56 (-5) 87 (-6) 51
AM 20FT Wnd (mph) N 8-12 NE 4-8
PM 20FT Wnd (mph) N 9-13 N 7-11 NE 4-8
Precip Chance (%) 0 0 0
Precip Type None None None
Precip Amount (in) 0.00 0.00 0.00
Precip Dur (hr)
Precip Begin
Precip End
Mixing Hgt (m-msl) 1500 1600
Mixing Hgt (ft-msl) 4800 5400
Transport Wnd (m/s) N 8 NE 3
Transport Wnd (mph) N 18 NE 7
Vent Rate (m/s-m) 11752 7470
Category Day 4 3
Dispersion Index 46 8 20
LAL 1 1 1
Haines Index 4 4 4
Maximum LVORI 10 7 8
RH Recovery Moderate

Remarks...None.

.FORECAST FOR DAYS 3 THROUGH 7...

.SATURDAY NIGHT...Mostly clear. Lows around 50. Northeast winds up
to 5 mph.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Minimum RH 48 percent.
Northeast winds up to 5 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds up
to 5 mph.
.MONDAY...Mostly sunny. Highs in the mid 70s. Minimum RH 43 percent.
Southeast winds up to 5 mph shifting to the northeast in the
afternoon.
.TUESDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. Minimum RH 44 percent. North winds up to 5 mph.
.WEDNESDAY...Mostly clear. Lows around 50. Highs in the upper 70s.
Minimum RH 44 percent. North winds up to 5 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the upper
70s. Minimum RH 45 percent. West winds up to 5 mph.

$$

TNZ056>058-060-061-075-076-092>096-182215-
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
145 AM CDT Fri Sep 18 2020

Today Tonight Sat

Cloud Cover Pcldy Mclear Pcldy
Temp (24H Trend) 75 (-8) 52 (-10) 74
RH % (24H Trend) 55 (-3) 86 (-4) 52
AM 20FT Wnd (mph) N 9-13 NE 4-8
PM 20FT Wnd (mph) NE 9-13 G20 N 8-12 NE 4-8
Precip Chance (%) 0 0 0
Precip Type None None None
Precip Amount (in) 0.00 0.00 0.00
Precip Dur (hr)
Precip Begin
Precip End
Mixing Hgt (m-msl) 1300 1500
Mixing Hgt (ft-msl) 4400 4800
Transport Wnd (m/s) NE 9 NE 5
Transport Wnd (mph) NE 21 NE 10
Vent Rate (m/s-m) 13113 8245
Category Day 4 3
Dispersion Index 52 8 25
LAL 1 1 1
Haines Index 4 4 4
Maximum LVORI 8 7 7
RH Recovery Moderate

Remarks...None.

.FORECAST FOR DAYS 3 THROUGH 7...

.SATURDAY NIGHT...Mostly clear. Lows in the lower 50s. Northeast
winds up to 5 mph.
.SUNDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
50 percent. Northeast winds up to 5 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. East winds up
to 5 mph.
.MONDAY...Mostly sunny. Highs in the mid 70s. Minimum RH 44 percent.
East winds up to 5 mph.
.TUESDAY...Mostly clear. Lows around 50. Highs in the mid 70s.
Minimum RH 45 percent. East winds up to 5 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs in the upper
70s. Minimum RH 45 percent. Northeast winds up to 5 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the upper
70s. Minimum RH 46 percent. Southwest winds up to 5 mph.

$$

TNZ077-079-097-182215-
Coffee-Franklin-Grundy-
Including the cities of Altamont, Coalmont, Cowan, Decherd,
Estill Springs, Manchester, Sewanee, Tullahoma, and Winchester
145 AM CDT Fri Sep 18 2020

Today Tonight Sat

Cloud Cover Pcldy Pcldy Pcldy
Temp (24H Trend) 74 (-7) 53 (-8) 73
RH % (24H Trend) 55 (-5) 89 (-5) 53
AM 20FT Wnd (mph) N 9-13 NE 3-7
PM 20FT Wnd (mph) N 9-13 G20 N 9-13 LGT/VAR
Precip Chance (%) 0 0 0
Precip Type None None None
Precip Amount (in) 0.00 0.00 0.00
Precip Dur (hr)
Precip Begin
Precip End
Mixing Hgt (m-msl) 1500 1300
Mixing Hgt (ft-msl) 4900 4200
Transport Wnd (m/s) NE 8 NE 3
Transport Wnd (mph) NE 18 NE 6
Vent Rate (m/s-m) 11875 3600
Category Day 4 2
Dispersion Index 49 9 12
LAL 1 1 1
Haines Index 4 3 3
Maximum LVORI 10 8 9
RH Recovery Moderate

Remarks...None.

.FORECAST FOR DAYS 3 THROUGH 7...

.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Northeast
winds up to 5 mph.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Minimum RH 48 percent.
Northeast winds up to 5 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
.MONDAY...Mostly sunny. Highs in the mid 70s. Minimum RH 39 percent.
East winds up to 5 mph.
.TUESDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. Minimum RH 40 percent. North winds up to 5 mph.
.WEDNESDAY...Mostly clear. Lows around 50. Highs in the upper 70s.
Minimum RH 41 percent. North winds up to 5 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the upper
70s. Minimum RH 42 percent. Southwest winds up to 5 mph.

$$

Digital Tabular Forecast
Hourly 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 1-2 Precip Days 1-3 Precip
   
Days 4-5 Forecast Precipitation Days 6-7 Forecast Precipitation
Days 4-5 Precip Days 6-7 Precip
   

Days 6-10

Temperature  Precipitation
6-10 day temperature 6-10 day precipitation
   

Days 8-14

TEMPERATURE  PRECIPITATION
8-14 day temperature 8-14 day precipitation
   

Week 3-4

TEMPERATURE

PRECIPITATION

Week 3-4 Temperature Week 3-4 precipitation

 

Products
HAZARDOUS WEATHER OUTLOOK FORECAST DISCUSSION SPECIAL WEATHER STATEMENT PUBLIC INFORMATION STATEMENT

The following links also pertain to fire weather:

Smoke Dispersion Index
Fire Terms and Definitions

Keetch-Byram Drought Index
National Interagency Fire Center
NOAA's Drought Information Center
Palmer Index
Storm Prediction Center's Fire Weather Forecasts
Tennessee Division of Forestry
USDA Forest Service
Wildland Fire Assessment System