Alert archive / Tennessee / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 143, NWS Morristown, TN

August 31, 2013Anderson County, Knox County, Union County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Aug 31, 2013, 9:18 PM EDT for Anderson County, Knox County, Union County, Tennessee. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 31, 2013, 9:18 PM EDT (01:18 UTC)
Expired
Aug 31, 2013, 9:45 PM EDT
In force
27 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon

Counties Anderson County, TN, Knox County, TN, Union County, TN

The radar

The Knoxville radar (KMRX), 53 km from the middle of the area, began a volume at 01:21 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 forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Morristown, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 31, 7:40 PM EDT, 1 hour 38 minutes earlier.

Area forecast discussion, Aug 31, 7:40 PM EDT, 1 hour 38 minutes before
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Hazardous weather outlook, Aug 31, 10:30 AM EDT, 10 hours 48 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MORRISTOWN TN
1030 AM EDT SAT AUG 31 2013

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-011000-
CHEROKEE-CLAY-SCOTT TN-CAMPBELL-CLAIBORNE-HANCOCK-HAWKINS-
SULLIVAN-JOHNSON-MORGAN-ANDERSON-UNION-GRAINGER-HAMBLEN-
NORTHWEST COCKE-COCKE SMOKY MOUNTAINS-NORTHWEST GREENE-
SOUTHEAST GREENE-WASHINGTON TN-UNICOI-NORTHWEST CARTER-
SOUTHEAST CARTER-ROANE-LOUDON-KNOX-JEFFERSON-NW BLOUNT-
BLOUNT SMOKY MOUNTAINS-NORTH SEVIER-SEVIER SMOKY MOUNTAINS-
SEQUATCHIE-BLEDSOE-RHEA-MEIGS-MCMINN-NORTHWEST MONROE-
SOUTHEAST MONROE-MARION-HAMILTON-BRADLEY-WEST POLK-EAST POLK-LEE-
WISE-SCOTT-RUSSELL-WASHINGTON-
1030 AM EDT (930 AM CDT) SAT AUG 31 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST TENNESSEE...SOUTHWEST
VIRGINIA...AND EXTREME SOUTHWEST NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT...

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS
AFTERNOON...WITH A FEW STORMS POSSIBLY BECOMING STRONG TO SEVERE.
THE MAIN THREATS WILL BE STRONG GUSTY WINDS...LOCALLY HEAVY
RAINFALL...AND CLOUD TO GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

AN UPPER LEVEL DISTURBANCE WILL CONTINUE TO PRODUCE SCATTERED
SHOWERS AND THUNDERSTORMS ON SUNDAY...WITH A COLD FRONT MOVING
THROUGH THE REGION ON LABOR DAY TRIGGERING ADDITIONAL
THUNDERSTORMS. SOME STORMS ON BOTH SUNDAY AND MONDAY WILL POSSIBLY
BECOME STRONG TO SEVERE...WITH THE MAIN THREATS BEING STRONG GUSTY
WINDS...LOCALLY HEAVY RAINFALL...AND CLOUD TO GROUND LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED ON SUNDAY AND MONDAY.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 9:45 PM EDTSevere Thunderstorm WarningMRXBlount, Grainger, Jefferson, Knox, Sevier, Union45 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2013Every severe thunderstorm warning in 2013

Sources

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