Alert archive / Tennessee / High Wind Warnings in 2018

High Wind Warning 7, NWS Morristown, TN

December 30, 2018Blount County, Cocke County, Sevier County, Tennessee

NWS Morristown, TN issued this high wind warning at Dec 30, 2018, 10:06 PM EST for Blount County, Cocke County, Sevier County, Tennessee. It took effect at Dec 31, 2018, 7:00 AM EST. It was in force for 16 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 30, 2018, 10:06 PM EST (03:06 UTC)
In effect from
Dec 31, 2018, 7:00 AM EST
Expired
Dec 31, 2018, 10:51 PM EST
In force
16 hr
Issued by
NWS Morristown, TN

Counties Blount County, TN, Cocke County, TN, Sevier County, TN

The radar

The Knoxville radar (KMRX), 42 km from the middle of the area, began a volume at 03:10 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 3.1 hours before the alert went out and 279 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 2018-12-31Temperature 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 2018-12-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.1939587897117136Sfc1 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
1471 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

763 
WWUS74 KMRX 310306
NPWMRX

URGENT - WEATHER MESSAGE
National Weather Service Morristown TN
1006 PM EST Sun Dec 30 2018

...Windy Monday across the Smoky Mountains...

.A storm system will move across the Southern Appalachians Monday
producing high winds over the higher elevations of the East
Tennessee mountains. 

TNZ041-072-074-311200-
/O.UPG.KMRX.HW.A.0004.181231T1200Z-190101T0000Z/
/O.NEW.KMRX.HW.W.0007.181231T1200Z-190101T0500Z/
Cocke Smoky Mountains-Blount Smoky Mountains-
Sevier Smoky Mountains-
Including the cities of Cosby, Cades Cove, and Gatlinburg
1006 PM EST Sun Dec 30 2018

...HIGH WIND WARNING IN EFFECT FROM 7 AM MONDAY TO MIDNIGHT EST
MONDAY NIGHT...

The National Weather Service in Morristown has issued a High Wind
Warning, which is in effect from 7 AM Monday to midnight EST
Monday night. This is an upgrade to the High Wind Watch.

* WINDS...South 25 to 40 mph with gusts up to 60 mph.

* TIMING...Monday from daybreak through midnight.

* IMPACTS...Strong winds may blow down limbs, trees, and power
  lines. Scattered power outages are expected. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph and/or
gusts of 58 mph or stronger can be expected at times.  Winds of
these magnitudes can cause property damage and power outages. 
Motorists should use caution...especially those in high profile
vehicles.

&&

$$

TNZ018-043-045-047-311200-
/O.NEW.KMRX.WI.Y.0026.181231T1200Z-190101T0500Z/
Johnson-Southeast Greene-Unicoi-Southeast Carter-
Including the cities of Mountain City, Cedar Creek, Erwin, 
and Roan Mountain
1006 PM EST Sun Dec 30 2018

...WIND ADVISORY IN EFFECT FROM 7 AM MONDAY TO MIDNIGHT EST
MONDAY NIGHT...

The National Weather Service in Morristown has issued a Wind
Advisory, which is in effect from 7 AM Monday to midnight EST
Monday night.

* WINDS...South 15 to 30 mph with gusts up to 40 mph.

* TIMING...Monday morning through midnight.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 26 to 39 mph and/or gusts of
40 to 57 mph are expected or occurring. Winds this strong can
make driving difficult...especially for high profile vehicles.
Use extra caution.

&&

$$

TNZ087-311200-
/O.NEW.KMRX.WI.Y.0026.181231T1200Z-190101T0500Z/
Southeast Monroe-
Including the city of Coker Creek
1006 PM EST Sun Dec 30 2018

...WIND ADVISORY IN EFFECT FROM 7 AM MONDAY TO MIDNIGHT EST
MONDAY NIGHT...

The National Weather Service in Morristown has issued a Wind
Advisory, which is in effect from 7 AM Monday to midnight EST
Monday night.

* WINDS...South 15 to 30 mph with gusts up to 50 mph.

* TIMING...Monday morning through midnight.

* IMPACTS...Strong winds may blow down limbs, trees, and power 
  lines. Scattered power outages are expected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 26 to 39 mph and/or gusts of
40 to 57 mph are expected or occurring. Winds this strong can
make driving difficult...especially for high profile vehicles.
Use extra caution.

&&

$$
3 follow-up statements
205 
WWUS74 KMRX 310812
NPWMRX

URGENT - WEATHER MESSAGE
National Weather Service Morristown TN
312 AM EST Mon Dec 31 2018

...Windy Today Across The Smoky Mountains...

.A storm system will move across the Southern Appalachians today 
producing high winds over the higher elevations of the East 
Tennessee mountains.

TNZ041-072-074-311700-
/O.CON.KMRX.HW.W.0007.181231T1200Z-190101T0500Z/
Cocke Smoky Mountains-Blount Smoky Mountains-
Sevier Smoky Mountains-
Including the cities of Cosby, Cades Cove, and Gatlinburg
312 AM EST Mon Dec 31 2018

...HIGH WIND WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO
MIDNIGHT EST TONIGHT...

* WINDS...South 25 to 40 mph with gusts up to 60 mph.

* TIMING...Today through midnight tonight.

* IMPACTS...Strong winds may blow down limbs, trees, and power 
  lines. Scattered power outages are expected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph and/or
gusts of 58 mph or stronger can be expected at times.  Winds of
these magnitudes can cause property damage and power outages.
Motorists should use caution...especially those in high profile
vehicles.

&&

$$

TNZ018-043-045-047-311700-
/O.CON.KMRX.WI.Y.0026.181231T1200Z-190101T0500Z/
Johnson-Southeast Greene-Unicoi-Southeast Carter-
Including the cities of Mountain City, Cedar Creek, Erwin, 
and Roan Mountain
312 AM EST Mon Dec 31 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO
MIDNIGHT EST TONIGHT...

* WINDS...South 15 to 30 mph with gusts up to 40 mph.

* TIMING...Today through midnight tonight.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 26 to 39 mph and/or gusts of
40 to 57 mph are expected or occurring. Winds this strong can
make driving difficult...especially for high profile vehicles.
Use extra caution.

&&

$$

TNZ087-311700-
/O.CON.KMRX.WI.Y.0026.181231T1200Z-190101T0500Z/
Southeast Monroe-
Including the city of Coker Creek
312 AM EST Mon Dec 31 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO
MIDNIGHT EST TONIGHT...

* WINDS...South 15 to 30 mph with gusts up to 50 mph.

* TIMING...Today through midnight tonight.

* IMPACTS...Strong winds may blow down limbs, trees, and power 
  lines. Scattered power outages are expected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 26 to 39 mph and/or gusts of
40 to 57 mph are expected or occurring. Winds this strong can
make driving difficult...especially for high profile vehicles.
Use extra caution.

&&

$$
041 
WWUS74 KMRX 311950
NPWMRX

URGENT - WEATHER MESSAGE
National Weather Service Morristown TN
250 PM EST Mon Dec 31 2018

...Windy Today Across The Smoky Mountains...

.A storm system will move across the Southern Appalachians today
producing high winds over the higher elevations of the East
Tennessee mountains.

TNZ041-072-074-010400-
/O.CON.KMRX.HW.W.0007.000000T0000Z-190101T0500Z/
Cocke Smoky Mountains-Blount Smoky Mountains-
Sevier Smoky Mountains-
Including the cities of Cosby, Cades Cove, and Gatlinburg
250 PM EST Mon Dec 31 2018

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

* WINDS...South 25 to 35 mph with gusts up to 60 mph.

* TIMING...Today through midnight tonight.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph and/or
gusts of 58 mph or stronger can be expected at times.  Winds of
these magnitudes can cause property damage and power outages.
Motorists should use caution...especially those in high profile
vehicles.

&&

$$

TNZ018-043-045-047-010400-
/O.CON.KMRX.WI.Y.0026.000000T0000Z-190101T0500Z/
Johnson-Southeast Greene-Unicoi-Southeast Carter-
Including the cities of Mountain City, Cedar Creek, Erwin, 
and Roan Mountain
250 PM EST Mon Dec 31 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WINDS...South 15 to 25 mph with gusts up to 45 mph.

* TIMING...Today through midnight tonight.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 26 to 39 mph and/or gusts of
40 to 57 mph are expected or occurring. Winds this strong can
make driving difficult...especially for high profile vehicles.
Use extra caution.

&&

$$

TNZ087-010400-
/O.CON.KMRX.WI.Y.0026.000000T0000Z-190101T0500Z/
Southeast Monroe-
Including the city of Coker Creek
250 PM EST Mon Dec 31 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WINDS...South 15 to 25 mph with gusts up to 50 mph.

* TIMING...Today through midnight tonight.

* IMPACTS...Strong winds may blow down limbs, trees, and power 
  lines. Scattered power outages are expected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 26 to 39 mph and/or gusts of
40 to 57 mph are expected or occurring. Winds this strong can
make driving difficult...especially for high profile vehicles.
Use extra caution.

&&

$$
279 
WWUS74 KMRX 010351
NPWMRX

URGENT - WEATHER MESSAGE
National Weather Service Morristown TN
1051 PM EST Mon Dec 31 2018

TNZ041-072-074-010500-
/O.CAN.KMRX.HW.W.0007.000000T0000Z-190101T0500Z/
Cocke Smoky Mountains-Blount Smoky Mountains-
Sevier Smoky Mountains-
Including the cities of Cosby, Cades Cove, and Gatlinburg
1051 PM EST Mon Dec 31 2018

...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in Morristown has cancelled the High
Wind Warning.

The damaging wind threat has subsided therefore the warning is no
longer needed.

$$

TNZ018-043-045-047-087-010500-
/O.CAN.KMRX.WI.Y.0026.000000T0000Z-190101T0500Z/
Johnson-Southeast Greene-Unicoi-Southeast Carter-Southeast Monroe-
Including the cities of Mountain City, Cedar Creek, Erwin, 
Roan Mountain, and Coker Creek
1051 PM EST Mon Dec 31 2018

...WIND ADVISORY IS CANCELLED...

The National Weather Service in Morristown has cancelled the Wind
Advisory.

The damaging wind threat has subsided therefore the warning is no
longer needed.

$$

CDG

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 30, 10:06 PM ESTWind AdvisoryMRXCarter, Greene, Johnson, Monroe, Unicoi25 hr
Dec 31, 5:22 PM ESTSpecial Weather StatementMRXBledsoe, Marion, Sequatchie53 min

Nearby

High Wind Warnings in Tennessee, 2018Every high wind warning in 2018

Sources

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