Alert archive / Tennessee / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 180, NWS Nashville, TN

August 6, 2008Fentress County, Overton County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Aug 6, 2008, 11:29 PM CDT for Fentress County, Overton County, Tennessee. It was in force for 31 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, 2008, 11:29 PM CDT (04:29 UTC)
Expired: Aug 7, 2008, 12:00 AM CDT
In force: 31 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Fentress County, TN, Overton County, TN

The radar

The Nashville radar (KOHX), 131 km from the middle of the area, began a volume at 04:28 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, 4.5 hours before the alert went out and 136 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: 826 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 1877 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 Nashville, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 6, 11:25 PM CDT, 4 minutes earlier.

Area forecast discussion, Aug 6, 11:25 PM CDT, 4 minutes before

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Hazardous weather outlook, Aug 6, 5:25 AM CDT, 18 hours 4 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
525 AM CDT WED AUG 6 2008

TNZ005>011-022>034-056>066-075-077>080-093>095-071030-
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-BENTON-
HOUSTON-HUMPHREYS-DICKSON-CHEATHAM-DAVIDSON-WILSON-TROUSDALE-
SMITH-JACKSON-PUTNAM-OVERTON-FENTRESS-PERRY-HICKMAN-LEWIS-
WILLIAMSON-MAURY-MARSHALL-RUTHERFORD-CANNON-DEKALB-WHITE-
CUMBERLAND-BEDFORD-COFFEE-WARREN-GRUNDY-VAN BUREN-WAYNE-LAWRENCE-
GILES-
525 AM CDT WED AUG 6 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE WEATHER TODAY AND TONIGHT AS A
FEW STORM COMPLEXES MOVE SOUTHEAST INTO MIDDLE TENNESSEE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THERE IS AGAIN A SLIGHT RISK OF SEVERE WEATHER ACROSS MIDDLE TENNESSEE
THURSDAY AS A COLD FRONT MOVES SOUTH ACROSS THE MID STATE.

.SPOTTER INFORMATION STATEMENT...

DUE TO THE BRIEF AND ISOLATED NATURE OF POSSIBLE SEVERE WEATHER...
SPOTTER ACTIVATION IS NOT ANTICIPATED.

17/MAG

In the hours before

Local storm report, Aug 6, 10:11 PM CDT, 1 hour 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1011 PM CDT WED AUG 06 2008

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

0950 PM     TSTM WND DMG     4 NE HARTSVILLE         36.43N 86.11W
08/06/2008                   TROUSDALE          TN   TRAINED SPOTTER

            LARGE LIMBS DOWN 4 MILES NORTHEAST OF HARTSVILLE AT HWY
            10 NEAR HWY 25

&&

LDAVIS

Local storm report, Aug 6, 10:17 PM CDT, 1 hour 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1017 PM CDT WED AUG 06 2008

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

1010 PM     TSTM WND DMG     3 NE LAFAYETTE          36.56N 85.99W
08/06/2008                   MACON              TN   LAW ENFORCEMENT

            TREE DOWN 3 MILES NORTHEAST OF LAFAYETTE

&&

LDAVIS

Local storm report, Aug 6, 10:31 PM CDT, 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1031 PM CDT WED AUG 06 2008

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

0942 PM     TSTM WND DMG     2 S HARTSVILLE          36.36N 86.16W
08/06/2008                   TROUSDALE          TN   EMERGENCY MNGR

            NUMEROUS TREES DOWN ON HWY 141. HWY 141 IS BLOCKED.

&&

LDAVIS

Local storm report, Aug 6, 10:57 PM CDT, 32 minutes before

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Local storm report, Aug 6, 11:01 PM CDT, 28 minutes before

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Local storm report, Aug 6, 11:29 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 8:04 PM CDT	Severe Thunderstorm Warning	OHX	Robertson	26 min
Aug 6, 8:33 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Robertson, Sumner	25 min
Aug 6, 9:35 PM CDT	Severe Thunderstorm Warning	OHX	Trousdale, Wilson	25 min
Aug 6, 9:51 PM CDT	Severe Thunderstorm Warning	OHX	Smith	24 min
Aug 6, 9:58 PM CDT	Severe Thunderstorm Warning	OHX	Fentress, Pickett	32 min
Aug 6, 9:59 PM CDT	Severe Thunderstorm Warning	OHX	Macon, Smith, Trousdale	31 min
Aug 6, 10:16 PM CDT	Severe Thunderstorm Warning	OHX	Jackson	44 min
Aug 6, 10:33 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Putnam	27 min
Aug 6, 10:48 PM CDT	Severe Thunderstorm Warning	OHX	Jackson, Overton, Putnam	42 min
Aug 6, 11:36 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland	39 min
Aug 7, 10:08 AM CDT	Areal Flood Advisory	OHX	Giles, Lawrence, Wayne	3 hr

Nearby

Severe Thunderstorm Warnings in Tennessee, 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.