Alert archive / Tennessee / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 126, NWS Morristown, TN

June 10, 20084 counties in Tennessee; Washington County, Virginia

NWS Morristown, TN issued this severe thunderstorm warning at Jun 10, 2008, 7:14 PM EDT for 4 counties in Tennessee; Washington County, Virginia. It was in force for 61 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: Jun 10, 2008, 7:14 PM EDT (23:14 UTC)
Expired: Jun 10, 2008, 8:15 PM EDT
In force: 61 min
Issued by: NWS Morristown, TN
Area: Storm-based polygon

Counties Carter County, TN, Johnson County, TN, Sullivan County, TN, Washington County, TN, Washington County, VA

The radar

The Knoxville radar (KMRX), 117 km from the middle of the area, began a volume at 23:15 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.2 hours before the alert went out and 206 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 556 J/kg
Mixed-layer CIN: -190 J/kg
Mixed-layer LCL: 1718 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jun 10, 3:20 PM EDT, 3 hours 54 minutes earlier.

Area forecast discussion, Jun 10, 3:20 PM EDT, 3 hours 54 minutes before

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Hazardous weather outlook, Jun 10, 5:00 AM EDT, 14 hours 14 minutes before

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In the hours before

Local storm report, Jun 10, 3:06 PM EDT, 4 hours 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
306 PM EDT TUE JUN 10 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0500 PM     TSTM WND DMG     5 SSW GREENEVILLE       36.10N 82.85W
06/09/2008                   GREENE             TN   LAW ENFORCEMENT

            TREES AND POWER LINES DOWN.

&&

Local storm report, Jun 10, 3:11 PM EDT, 4 hours 3 minutes before

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Special weather statement, Jun 10, 5:42 PM EDT, 1 hour 32 minutes before

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Special weather statement, Jun 10, 5:53 PM EDT, 1 hour 21 minutes before

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Local storm report, Jun 10, 7:11 PM EDT, 3 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 9:43 PM EDT	Severe Thunderstorm Warning	MRX	Bledsoe, Rhea	32 min
Jun 10, 12:08 AM EDT	Severe Thunderstorm Warning	MRX	Loudon, McMinn, Monroe, Roane	37 min
Jun 10, 12:18 AM EDT	Severe Thunderstorm Warning	MRX	Morgan	27 min
Jun 10, 12:41 AM EDT	Severe Thunderstorm Warning	MRX	Bradley, McMinn, Polk	34 min
Jun 10, 12:55 AM EDT	Severe Thunderstorm Warning	MRX	Anderson, Campbell	35 min
Jun 10, 1:17 AM EDT	Severe Thunderstorm Warning	MRX	Loudon, McMinn, Meigs, Monroe	28 min
Jun 10, 2:37 AM EDT	Areal Flood Advisory	MRX	Anderson, Bledsoe, Loudon, Morgan, Rhea, Roane	3 hr
Jun 10, 6:42 PM EDT	Severe Thunderstorm Warning	MRX	Sullivan	33 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2008 Severe Thunderstorm Warnings in Virginia, 2008 Every severe thunderstorm warning in 2008

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.