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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 260810
FWFOHX

Fire Weather Planning Forecast for Middle Tennessee
National Weather Service Nashville TN
310 AM CDT Thu Apr 26 2018

.DISCUSSION...

Low pressure will cross the region with showers today. After today,
we will get into a dry pattern for the weekend and much of next week
as well. Temperatures will be seasonable through the weekend, then a
little warmer next week. With recent wet wx and showers today, there
are no fire wx concerns.


TNZ501-262215-
Highland Rim District - North-
Including the Counties of Cheatham, Davidson, Dickson, Houston,
Humphreys, Montgomery, Robertson, Rutherford, Stewart, Sumner,
Williamson, and Wilson
310 AM CDT Thu Apr 26 2018

Today Tonight Fri

Cloud Cover Cloudy PCldy PCldy
Temp (24H Trend) 63 (-6) 45 (-8) 71
RH % (24H Trend) 71 (+18) 89 (-4) 45
AM 20FT Wnd (MPH) E 3-7 W 4-8
PM 20FT Wnd (MPH) NE 4-8 N 4-8 W 7-11
Precip Chance (%) 80 70 20
Precip Type Showers Showers Showers
Precip Amount (IN) 0.26 0.02 0.01
Precip Dur (HR) 11 2 1
Precip Begin 6 AM Continuing 1 PM
Precip End Continuing 1 AM Continuing
Mixing Hgt (M-MSL) 1100 2400
Mixing Hgt (FT-MSL) 3700 8000
Transport Wnd (M/S) E 4 W 7
Transport Wnd (MPH) E 8 W 15
Dispersion Index 17 3 54
LAL 2 2 1
Haines Index 2 3 4
Maximum LVORI 0 10 10
RH Recovery Moderate

Remarks...None.

.FORECAST FOR DAYS 3 THROUGH 7...

.FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. West winds up to
5 mph.
.SATURDAY...Mostly sunny. Highs in the upper 60s. Minimum RH
39 percent. Northwest winds 5 to 10 mph.
.SATURDAY NIGHT...Clear. Lows around 40. North winds 5 to 10 mph.
.SUNDAY...Sunny. Highs in the mid 60s. Minimum RH 34 percent.
Northeast winds up to 5 mph.
.MONDAY...Clear. Lows in the lower 40s. Highs in the lower 70s.
Minimum RH 38 percent. South winds up to 5 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the upper
70s. Minimum RH 46 percent. South winds up to 10 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 50s. Highs in the
upper 70s. Minimum RH 54 percent. South winds 5 to 10 mph.

$$

TNZ502-262215-
Highland Rim District - South-
Including the Counties of Bedford, Giles, Hardin, Hickman, Lawrence,
Lewis, Lincoln, Marshall, Maury, Moore, Perry, and Wayne
310 AM CDT Thu Apr 26 2018

Today Tonight Fri

Cloud Cover Cloudy PCldy PCldy
Temp (24H Trend) 62 (-9) 46 (-8) 70
RH % (24H Trend) 77 (+29) 92 (-2) 47
AM 20FT Wnd (MPH) E 6-10 NW 3-7
PM 20FT Wnd (MPH) NE 4-8 N 4-8 NW 6-10
Precip Chance (%) 100 80 20
Precip Type Tstms None Showers
Precip Amount (IN) 0.56 0.04 0.01
Precip Dur (HR) 12 1 1
Precip Begin 6 AM Continuing 1 PM
Precip End Continuing 7 PM Continuing
Mixing Hgt (M-MSL) 1200 2300
Mixing Hgt (FT-MSL) 3800 7700
Transport Wnd (M/S) N 6 NW 7
Transport Wnd (MPH) N 14 NW 16
Dispersion Index 22 6 60
LAL 2 2 1
Haines Index 2 2 4
Maximum LVORI 0 10 10
RH Recovery Excellent

Remarks...None.

.FORECAST FOR DAYS 3 THROUGH 7...

.FRIDAY NIGHT...Mostly clear. Lows in the upper 40s. West winds up
to 5 mph.
.SATURDAY...Mostly sunny. Highs in the lower 70s. Minimum RH
39 percent. Northwest winds 5 to 10 mph.
.SATURDAY NIGHT...Clear. Lows in the lower 40s. North winds 5 to
10 mph.
.SUNDAY...Sunny. Highs in the upper 60s. Minimum RH 33 percent.
Northeast winds up to 5 mph.
.MONDAY...Clear. Lows in the lower 40s. Highs in the lower 70s.
Minimum RH 38 percent. South winds up to 5 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the upper
70s. Minimum RH 47 percent. South winds up to 10 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 50s. Highs in the
upper 70s. Minimum RH 53 percent. South winds 5 to 10 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
310 AM CDT Thu Apr 26 2018

Today Tonight Fri

Cloud Cover Cloudy MCldy PCldy
Temp (24H Trend) 62 (-3) 45 (-6) 68
RH % (24H Trend) 71 (+10) 94 (-2) 46
AM 20FT Wnd (MPH) SE 3-7 W 4-8
PM 20FT Wnd (MPH) E 3-7 N 3-7 W 7-11
Precip Chance (%) 80 80 20
Precip Type Showers Showers Showers
Precip Amount (IN) 0.24 0.04 0.01
Precip Dur (HR) 10 2 1
Precip Begin 6 AM Continuing 1 PM
Precip End Continuing 1 AM Continuing
Mixing Hgt (M-MSL) 1200 2200
Mixing Hgt (FT-MSL) 4100 7300
Transport Wnd (M/S) E 6 NW 7
Transport Wnd (MPH) E 13 NW 15
Dispersion Index 17 3 48
LAL 2 2 1
Haines Index 2 2 4
Maximum LVORI 1 10 10
RH Recovery Excellent

Remarks...None.

.FORECAST FOR DAYS 3 THROUGH 7...

.FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. West winds up to
5 mph.
.SATURDAY...Mostly sunny. Highs in the upper 60s. Minimum RH
41 percent. Northwest winds 5 to 10 mph.
.SATURDAY NIGHT...Clear. Patchy frost. Lows in the upper 30s. North
winds 5 to 10 mph.
.SUNDAY...Sunny. Highs in the mid 60s. Minimum RH 32 percent. North
winds up to 5 mph.
.MONDAY...Clear. Lows around 40. Highs in the upper 60s. Minimum RH
36 percent. South winds up to 5 mph.
.TUESDAY...Mostly clear. Lows around 50. Highs in the mid 70s.
Minimum RH 44 percent. South winds up to 10 mph.
.WEDNESDAY...Partly cloudy. Lows in the mid 50s. Highs in the upper
70s. Minimum RH 50 percent. South winds up to 10 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