Alert archive / Tennessee / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 250, NWS Morristown, TN

August 6, 2005Anderson County, Campbell County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Aug 6, 2005, 7:23 PM EDT for Anderson County, Campbell County, Tennessee. It was in force for 67 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 6, 2005, 7:23 PM EDT (23:23 UTC)
Expired: Aug 6, 2005, 8:30 PM EDT
In force: 67 min
Issued by: NWS Morristown, TN
Area: Counties, with a storm outline in the text

Counties Anderson County, TN, Campbell County, TN

The radar

The Knoxville radar (KMRX), 70 km from the middle of the area, began a volume at 23:26 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 12:00Z, 11.4 hours before the alert went out and 218 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: 583 J/kg
Mixed-layer CIN: -153 J/kg
Mixed-layer LCL: 1363 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 11 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 Aug 6, 7:15 PM EDT, 8 minutes earlier.

Area forecast discussion, Aug 6, 7:15 PM EDT, 8 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
715 PM EDT SAT AUG 6 2005

.DISCUSSION...SCATTERED CONVECTION CONTINUES OVER THE MRX CWA THIS
EVENING.  AREAL COVERAGE SHOULD DECREASE THROUGH SUNSET...BUT THE
AIR MASS SHOULD REMAIN AT LEAST MARGINALLY UNSTABLE AND WITH AN AREA
OF LOW PRESSURE TO OUR SOUTH....NUMEROUS OUTFLOW BOUNDARY IN PLACE
FROM EARLIER CONVECTION AND THE REMNANTS OF A FRONTAL BOUNDARY TO
OUR NORTH...EXPECTED A FEW ISOLATED CELL REMAINING INTO THE
OVERNIGHT HOURS.  ALL HANDLED WELL IN THE CURRENT FORECAST...WILL
UPDATE LATER TO REMOVE EVENING WORDING.

&&
.PRELIMINARY POINT TEMPS/POPS...
CHATTANOOGA AIRPORT, TN             70  85  69  86 /  40  60  60  40
KNOXVILLE MCGHEE TYSON AIRPORT, TN  67  83  67  83 /  30  60  30  40
OAK RIDGE, TN                       68  84  68  84 /  30  60  30  40
TRI CITIES AIRPORT, TN              64  82  64  82 /  30  60  60  40

&&
.MRX WATCHES/WARNINGS/ADVISORIES...
NC......NONE.
TN......NONE.
VA......NONE.

&&

MJB

Hazardous weather outlook, Aug 6, 4:00 AM EDT, 15 hours 23 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MORRISTOWN TN
400 AM EDT SAT AUG 6 2005

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-005-
006-008-070800-
ANDERSON-BLEDSOE-BLOUNT SMOKY MTN-BRADLEY-CAMPBELL-CHEROKEE-
CLAIBORNE-CLAY-COCKE SMOKY MTN-EAST POLK-GRAINGER-HAMBLEN-HAMILTON-
HANCOCK-HAWKINS-JEFFERSON-JOHNSON-KNOX-LEE-LOUDON-MARION-MCMINN-
MEIGS-MORGAN-NORTH SEVIER-NORTHWEST CARTER-NORTHWEST COCKE-
NORTHWEST GREENE-NORTHWEST MONROE-NW BLOUNT-RHEA-ROANE-RUSSELL-
SCOTT TN-SCOTT VA-SEQUATCHIE-SEVIER SMOKY MTN-SOUTHEAST CARTER-
SOUTHEAST GREENE-SOUTHEAST MONROE-SULLIVAN-UNICOI-UNION-
WASHINGTON TN-WASHINGTON VA-WEST POLK-WISE-
400 AM EDT (300 AM CDT) SAT AUG 6 2005

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

.DAY ONE (TODAY AND TONIGHT)...

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP...MAINLY
THIS AFTERNOON AND EVENING.  THE BEST CHANCES WILL BE ACROSS
NORTHEAST PARTS OF THE CUMBERLAND PLATEAU INTO SOUTHWEST VIRGINIA...
ASSOCIATED WITH A WEAK COLD FRONT.  MOUNTAINOUS AREAS ALONG THE
TENNESSEE AND NORTH CAROLINA STATE LINE WILL ALSO BE FAVORED
LOCATIONS FOR INITIAL DEVELOPMENT.

MOST STORMS WILL MOVE SLOWLY WEST OR NORTHWEST AT 10 MPH OR LESS
...AND MAY PRODUCE LOCALLY HEAVY RAINS IN EXCESS OF TWO INCHES.
ALSO...ISOLATED STRONG STORMS COULD PRODUCE DAMAGING WINDS OF 50 MPH
OR GREATER.

.DAYS TWO THROUGH SEVEN (SUNDAY THROUGH FRIDAY)...

THERE WILL GENERALLY BE ISOLATED TO SCATTERED SHOWERS AND
THUNDERSTORMS EACH DAY...ESPECIALLY IN THE AFTERNOON AND EVENING
HOURS.  HOWEVER...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

PLEASE STAY TUNED TO NOAA WEATHER RADIO OR VISIT OUR WEBSITE AT
WWW.SRH.NOAA.GOV/MRX.

TG

In the hours before

Local storm report, Aug 6, 5:40 PM EDT, 1 hour 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
540 PM EDT SAT AUG 06 2005

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

0530 PM     TSTM WND DMG     LEBANON                 36.90N 82.08W
08/06/2005                   RUSSELL            VA   LAW ENFORCEMENT

            NUMEROUS TREES AND POWER LINES DOWN
            COUNTYWIDE...ESPECIALLY IN AND AROUND CLEVELAND. REPORTED
            BY DISPATCH.

&&

GRC

Local storm report, Aug 6, 6:03 PM EDT, 1 hour 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
603 PM EDT SAT AUG 06 2005

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

0525 PM     TSTM WND DMG     GREENEVILLE             36.17N 82.82W
08/06/2005                   GREENE             TN   LAW ENFORCEMENT

            ROOF TORN OFF A HOUSE IN GREENEVILLE. ALSO...NUMEROUS
            TREES DOWNED COUNTYWIDE BY THIS SECOND STORM.

&&

GRC

Local storm report, Aug 6, 6:14 PM EDT, 1 hour 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
614 PM EDT SAT AUG 06 2005

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

0600 PM     TSTM WND DMG     2 W BYBEE               36.04N 83.22W
08/06/2005                   COCKE              TN   LAW ENFORCEMENT

            SEVERAL TREES AND POWER LINES DOWN IN AND AROUND RANKIN.
            REPORTED BY DISPATCH.

&&

GRC

Local storm report, Aug 6, 6:36 PM EDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
636 PM EDT SAT AUG 06 2005

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

0610 PM     TSTM WND DMG     4 SE CLINTON            36.05N 84.08W
08/06/2005                   ANDERSON           TN   LAW ENFORCEMENT

            SEVERAL TREES DOWN IN AND AROUND CLAXTON. REPORTED BY
            DISPATCH.

&&

GRC

Local storm report, Aug 6, 6:52 PM EDT, 31 minutes before

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Local storm report, Aug 6, 7:13 PM EDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
713 PM EDT SAT AUG 06 2005

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

0600 PM     TSTM WND DMG     WHITE PINE              36.10N 83.30W
08/06/2005                   JEFFERSON          TN   LAW ENFORCEMENT

            ONE TREE DOWN IN WHITE PINE. REPORTED BY DISPATCH.

&&

GRC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 5, 8:24 PM EDT	Severe Thunderstorm Warning	MRX	Roane	51 min
Aug 5, 9:03 PM EDT	Severe Thunderstorm Warning	MRX	Blount	27 min
Aug 5, 9:08 PM EDT	Severe Thunderstorm Warning	MRX	Meigs	34 min
Aug 5, 9:47 PM EDT	Severe Thunderstorm Warning	MRX	Knox	29 min
Aug 5, 9:53 PM EDT	Severe Thunderstorm Warning	MRX	Loudon	52 min
Aug 6, 2:36 PM EDT	Severe Thunderstorm Warning	MRX	Blount	27 min
Aug 6, 4:21 PM EDT	Severe Thunderstorm Warning	MRX	Greene	39 min
Aug 6, 4:25 PM EDT	Severe Thunderstorm Warning	MRX	Hawkins	65 min
Aug 6, 4:32 PM EDT	Flash Flood Warning	MRX	Sevier	118 min
Aug 6, 5:07 PM EDT	Severe Thunderstorm Warning	MRX	Greene	38 min
Aug 6, 5:31 PM EDT	Severe Thunderstorm Warning	MRX	Hamblen	44 min
Aug 6, 5:44 PM EDT	Severe Thunderstorm Warning	MRX	Cocke, Jefferson	31 min
Aug 6, 5:50 PM EDT	Severe Thunderstorm Warning	MRX	Anderson	55 min
Aug 6, 3:17 PM EDT	Severe Thunderstorm Warning	MRX	Washington	58 min
Aug 6, 5:16 PM EDT	Severe Thunderstorm Warning	MRX	Russell	29 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2005 Every severe thunderstorm warning in 2005

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.