Alert archive / Tennessee / Ice Storm Warnings in 2021

Ice Storm Warning 1, NWS Nashville, TN

February 10, 20214 counties in Tennessee

NWS Nashville, TN issued this ice storm warning at Feb 10, 2021, 3:00 AM CST for 4 counties in Tennessee. It took effect at Feb 10, 2021, 6:00 PM CST. It was in force for 18 hr. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 10, 2021, 3:00 AM CST (09:00 UTC)
In effect from
Feb 10, 2021, 6:00 PM CST
Expired
Feb 11, 2021, 12:17 PM CST
In force
18 hr
Issued by
NWS Nashville, TN

Counties Houston County, TN, Montgomery County, TN, Robertson County, TN, Stewart County, TN

The radar

The Ft Campbell radar (KHPX), 35 km from the middle of the area, began a volume at 09:00 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Feb 11, 10:30 AM CSTICE STORM10 N Dover, TNSECONDARY ROADS ALONG WITH BRIDGES AND OVERPASSES ARE ICY IN THE NORTHERN PART OF THE COUNTY. ABOUT 0.2 TENTH OF ICE ACCUMULATION ESTIMATED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 9.0 hours before the alert went out and 84 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2021-02-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2021-02-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
933 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

433 
WWUS44 KOHX 100900
WSWOHX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Nashville TN
300 AM CST Wed Feb 10 2021

TNZ005-006-023-102100-
/O.UPG.KOHX.WS.A.0001.210211T0300Z-210212T0000Z/
/O.NEW.KOHX.IS.W.0001.210211T0000Z-210212T0000Z/
Stewart-Montgomery-Houston-
Including the cities of Dover, Clarksville, Erin, 
and Tennessee Ridge
300 AM CST Wed Feb 10 2021

...ICE STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM CST
THURSDAY...

* WHAT...Significant icing expected from freezing rain. Total ice
  accumulations from two to three tenths of an inch.

* WHERE...Stewart, Montgomery and Houston Counties.

* WHEN...From 6 PM this evening to 6 PM CST Thursday.

* IMPACTS...Power outages and tree damage may occur due to the
  ice. Travel will be hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Prepare for possible power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

TNZ007-102100-
/O.NEW.KOHX.IS.W.0001.210211T0000Z-210212T0000Z/
Robertson-
Including the city of Springfield
300 AM CST Wed Feb 10 2021

...ICE STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM CST
THURSDAY...

* WHAT...Significant icing expected. Total ice accumulations of
  around one quarter of an inch.

* WHERE...Robertson County.

* WHEN...From 6 PM this evening to 6 PM CST Thursday.

* IMPACTS...Power outages and tree damage may occur. Travel will
  be hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Prepare for possible power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

TNZ008>010-024>031-056-057-059-102100-
/O.NEW.KOHX.WW.Y.0006.210211T0000Z-210212T0000Z/
Sumner-Macon-Clay-Humphreys-Dickson-Cheatham-Davidson-Wilson-
Trousdale-Smith-Jackson-Perry-Hickman-Williamson-
Including the cities of Hendersonville, Gallatin, Goodlettsville,
Lafayette, Celina, Waverly, New Johnsonville, McEwen, Dickson, 
Ashland City, Kingston Springs, Nashville, Lebanon, Mount Juliet,
Hartsville, Carthage, South Carthage, Gordonsville, Gainesboro, 
Linden, Lobelville, Centerville, Franklin, and Brentwood
300 AM CST Wed Feb 10 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 PM CST THURSDAY...

* WHAT...Freezing rain expected. Total ice accumulations of up to 
  two tenths of an inch.

* WHERE...Portions of Middle Tennessee generally along a line from
  Waverly to Nashville to Lafayette. 

* WHEN...From 6 PM this evening to 6 PM CST Thursday.

* IMPACTS...Difficult travel conditions are possible, mainly bridges
  and overpasses. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
5 follow-up statements
141 
WWUS44 KOHX 101940
WSWOHX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Nashville TN
140 PM CST Wed Feb 10 2021

TNZ005>007-023-110345-
/O.CON.KOHX.IS.W.0001.210211T0000Z-210212T0000Z/
Stewart-Montgomery-Robertson-Houston-
Including the cities of Dover, Clarksville, Springfield, Erin, 
and Tennessee Ridge
140 PM CST Wed Feb 10 2021

...ICE STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
6 PM CST THURSDAY...

* WHAT...Significant icing expected from freezing rain. Total 
  ice accumulations from two to three tenths of an inch.

* WHERE...Stewart, Montgomery and Houston Counties.

* WHEN...From 6 PM this evening to 6 PM CST Thursday.

* IMPACTS...Power outages and tree damage may occur due to the 
  ice. Travel will be hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Prepare for possible power outages.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

TNZ011-110345-
/O.EXB.KOHX.WW.Y.0006.210211T0300Z-210212T0000Z/
Pickett-
Including the city of Byrdstown
140 PM CST Wed Feb 10 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO
6 PM CST THURSDAY...

* WHAT...Freezing rain expected. Total ice accumulations of a 
  light glaze.

* WHERE...Pickett County.

* WHEN...From 9 PM this evening to 6 PM CST Thursday.

* IMPACTS...Difficult travel conditions are possible, mainly
  bridges and overpasses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

TNZ008>010-024>031-056-057-059-110345-
/O.EXT.KOHX.WW.Y.0006.210211T0300Z-210212T0000Z/
Sumner-Macon-Clay-Humphreys-Dickson-Cheatham-Davidson-Wilson-
Trousdale-Smith-Jackson-Perry-Hickman-Williamson-
Including the cities of Hendersonville, Gallatin, Goodlettsville,
Lafayette, Celina, Waverly, New Johnsonville, McEwen, Dickson, 
Ashland City, Kingston Springs, Nashville, Lebanon, Mount Juliet,
Hartsville, Carthage, South Carthage, Gordonsville, Gainesboro, 
Linden, Lobelville, Centerville, Franklin, and Brentwood
140 PM CST Wed Feb 10 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 9 PM THIS EVENING
TO 6 PM CST THURSDAY...

* WHAT...Freezing rain expected. Total ice accumulations of up 
  to two tenths of an inch.

* WHERE...Portions of Middle Tennessee generally along a line 
  from Waverly to Nashville to Lafayette.

* WHEN...From 9 PM this evening to 6 PM CST Thursday.

* IMPACTS...Difficult travel conditions are possible, mainly 
  bridges and overpasses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
252 
WWUS44 KOHX 110419
WSWOHX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Nashville TN
1019 PM CST Wed Feb 10 2021

TNZ005>007-023-111100-
/O.CON.KOHX.IS.W.0001.000000T0000Z-210212T0000Z/
Stewart-Montgomery-Robertson-Houston-
Including the cities of Dover, Clarksville, Springfield, Erin, 
and Tennessee Ridge
1019 PM CST Wed Feb 10 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THURSDAY...

* WHAT...Significant icing expected from freezing rain. Total 
  ice accumulations from two to three tenths of an inch.

* WHERE...Stewart, Montgomery and Houston Counties.

* WHEN...From 6 PM this evening to 6 PM CST Thursday.

* IMPACTS...Power outages and tree damage may occur due to the 
  ice. Travel will be hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Prepare for possible power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

TNZ008>011-024>031-056-057-059-111100-
/O.CON.KOHX.WW.Y.0006.000000T0000Z-210212T0000Z/
Sumner-Macon-Clay-Pickett-Humphreys-Dickson-Cheatham-Davidson-
Wilson-Trousdale-Smith-Jackson-Perry-Hickman-Williamson-
Including the cities of Hendersonville, Gallatin, Goodlettsville,
Lafayette, Celina, Byrdstown, Waverly, New Johnsonville, McEwen, 
Dickson, Ashland City, Kingston Springs, Nashville, Lebanon, 
Mount Juliet, Hartsville, Carthage, South Carthage, Gordonsville,
Gainesboro, Linden, Lobelville, Centerville, Franklin, 
and Brentwood
1019 PM CST Wed Feb 10 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
THURSDAY...

* WHAT...Freezing rain expected. Total ice accumulations of up 
  to two tenths of an inch.

* WHERE...Portions of Middle Tennessee generally along a line 
  from Waverly to Nashville to Lafayette.

* WHEN...From 9 PM this evening to 6 PM CST Thursday.

* IMPACTS...Difficult travel conditions are possible, mainly 
  bridges and overpasses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

21
636 
WWUS44 KOHX 110846
WSWOHX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Nashville TN
246 AM CST Thu Feb 11 2021

TNZ005>007-023-111815-
/O.CON.KOHX.IS.W.0001.000000T0000Z-210212T0000Z/
Stewart-Montgomery-Robertson-Houston-
Including the cities of Dover, Clarksville, Springfield, Erin, 
and Tennessee Ridge
246 AM CST Thu Feb 11 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Significant icing expected from freezing rain. Total 
  ice accumulations from two to three tenths of an inch.

* WHERE...Stewart, Montgomery and Houston Counties.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Power outages and tree damage may occur due to the 
  ice. Travel will be hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Prepare for possible power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

TNZ033-034-111815-
/O.EXA.KOHX.WW.Y.0006.000000T0000Z-210212T0000Z/
Overton-Fentress-
Including the cities of Livingston, Jamestown, and Allardt
246 AM CST Thu Feb 11 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Freezing rain. Ice accumulations up to two tenths of an 
  inch possible.

* WHERE...Overton and Fentress Counties.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Difficult travel conditions are possible, mainly 
  bridges and overpasses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

TNZ008>011-024>031-056-057-059-111815-
/O.CON.KOHX.WW.Y.0006.000000T0000Z-210212T0000Z/
Sumner-Macon-Clay-Pickett-Humphreys-Dickson-Cheatham-Davidson-
Wilson-Trousdale-Smith-Jackson-Perry-Hickman-Williamson-
Including the cities of Hendersonville, Gallatin, Goodlettsville,
Lafayette, Celina, Byrdstown, Waverly, New Johnsonville, McEwen, 
Dickson, Ashland City, Kingston Springs, Nashville, Lebanon, 
Mount Juliet, Hartsville, Carthage, South Carthage, Gordonsville,
Gainesboro, Linden, Lobelville, Centerville, Franklin, 
and Brentwood
246 AM CST Thu Feb 11 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Freezing rain expected. Total ice accumulations up to 
  two tenths of an inch.

* WHERE...Portions of Middle Tennessee generally along a line 
  from Waverly to Nashville to Lafayette.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Difficult travel conditions are possible, mainly 
  bridges and overpasses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
395 
WWUS44 KOHX 111814
WSWOHX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Nashville TN
1214 PM CST Thu Feb 11 2021

TNZ024-025-056-057-111915-
/O.CAN.KOHX.WW.Y.0006.000000T0000Z-210212T0000Z/
Humphreys-Dickson-Perry-Hickman-
Including the cities of Waverly, New Johnsonville, McEwen, 
Dickson, Linden, Lobelville, and Centerville
1214 PM CST Thu Feb 11 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

The winter weather advisory for Humphreys, Dickson, Perry,
and Hickman Counties has been cancelled as chance of significant 
accumulating precipitation has ended across these counties through
remainder of afternoon hours.

$$

TNZ005>007-023-120000-
/O.CON.KOHX.IS.W.0001.000000T0000Z-210212T0000Z/
Stewart-Montgomery-Robertson-Houston-
Including the cities of Dover, Clarksville, Springfield, Erin, 
and Tennessee Ridge
1214 PM CST Thu Feb 11 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Significant icing expected from freezing rain. Total 
  ice accumulations from two to three tenths of an inch.

* WHERE...Stewart, Montgomery and Houston Counties.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Power outages and tree damage may occur due to the 
  ice. Travel will be hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Prepare for possible power outages.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

TNZ008>011-026>031-033-034-059-120000-
/O.CON.KOHX.WW.Y.0006.000000T0000Z-210212T0000Z/
Sumner-Macon-Clay-Pickett-Cheatham-Davidson-Wilson-Trousdale-
Smith-Jackson-Overton-Fentress-Williamson-
Including the cities of Hendersonville, Gallatin, Goodlettsville,
Lafayette, Celina, Byrdstown, Ashland City, Kingston Springs, 
Nashville, Lebanon, Mount Juliet, Hartsville, Carthage, 
South Carthage, Gordonsville, Gainesboro, Livingston, Jamestown, 
Allardt, Franklin, and Brentwood
1214 PM CST Thu Feb 11 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Freezing rain expected. Total ice accumulations up to 
  two tenths of an inch.

* WHERE...Portions of Middle Tennessee generally along a line from
  just west of Nashville to Lafayette.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Difficult travel conditions are possible, mainly 
  bridges and overpasses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
JB Wright
415 
WWUS44 KOHX 111817
WSWOHX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Nashville TN
1217 PM CST Thu Feb 11 2021

TNZ005>007-023-111930-
/O.CAN.KOHX.IS.W.0001.000000T0000Z-210212T0000Z/
Stewart-Montgomery-Robertson-Houston-
Including the cities of Dover, Clarksville, Springfield, Erin, 
and Tennessee Ridge
1217 PM CST Thu Feb 11 2021

...ICE STORM WARNING IS CANCELLED...

The ice storm warning for Stewart, Montgomery, Robertson, and 
Houston Counties has been cancelled as chance of significant 
accumulating precipitation has ended across these counties through
remainder of afternoon hours.

$$

TNZ008>011-026>031-033-034-059-120000-
/O.CON.KOHX.WW.Y.0006.000000T0000Z-210212T0000Z/
Sumner-Macon-Clay-Pickett-Cheatham-Davidson-Wilson-Trousdale-
Smith-Jackson-Overton-Fentress-Williamson-
Including the cities of Hendersonville, Gallatin, Goodlettsville,
Lafayette, Celina, Byrdstown, Ashland City, Kingston Springs, 
Nashville, Lebanon, Mount Juliet, Hartsville, Carthage, 
South Carthage, Gordonsville, Gainesboro, Livingston, Jamestown, 
Allardt, Franklin, and Brentwood
1217 PM CST Thu Feb 11 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Freezing rain expected. Total ice accumulations up to 
  two tenths of an inch.

* WHERE...Portions of Middle Tennessee generally along a line 
  from just west of Nashville to Lafayette.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Difficult travel conditions are possible, mainly 
  bridges and overpasses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
JB Wright

The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 10, 3:00 AM CSTWinter Weather AdvisoryOHXCheatham, Clay, Davidson, Dickson, Fentress, Hickman and 11 more36 hr

Nearby

Ice Storm Warnings in Tennessee, 2021Every ice storm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.