Alert archive / Tennessee / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 106, NWS Huntsville, AL

May 6, 2012Lincoln County, Moore County, Tennessee

NWS Huntsville, AL issued this severe thunderstorm warning at May 6, 2012, 6:50 PM CDT for Lincoln County, Moore County, Tennessee. It was in force for 13 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
May 6, 2012, 6:50 PM CDT (23:50 UTC)
Expired
May 6, 2012, 7:03 PM CDT
In force
13 min
Issued by
NWS Huntsville, AL
Area
Storm-based polygon

Counties Lincoln County, TN, Moore County, TN

The radar

The Northeast Alabama radar (KHTX), 47 km from the middle of the area, began a volume at 23:50 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, 11.8 hours before the alert went out and 103 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 12:00Z on 2012-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 81 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2012-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939Sfc1 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
81 J/kg
Mixed-layer CIN
-176 J/kg
Mixed-layer LCL
1612 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
51 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 Huntsville, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 6, 6:35 PM CDT, 15 minutes earlier.

Area forecast discussion, May 6, 6:35 PM CDT, 15 minutes before
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Hazardous weather outlook, May 6, 12:44 PM CDT, 6 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1244 PM CDT SUN MAY 6 2012

ALZ001>010-016-TNZ076-096-097-071000-
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN-
MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN-
1244 PM CDT SUN MAY 6 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS
OF SOUTHERN MIDDLE TENNESSEE.

.DAY ONE...THROUGH TONIGHT...

REDEVELOPMENT OF ISOLATED TO SCATTERED THUNDERSTORMS IS EXPECTED
ACROSS SOUTHERN MIDDLE TENNESSEE AND FAR NORTHERN ALABAMA BY LATE
THIS AFTERNOON INTO TONIGHT. THESE STORMS COULD BE STRONG TO
SEVERE...PRODUCING HAIL TO UP TO QUARTER SIZE...FREQUENT
LIGHTNING...GUSTY WINDS AND LOCALLY HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

MULTIPLE PERIODS OF THUNDERSTORMS ARE POSSIBLE MONDAY THROUGH
TUESDAY. THE MOST FAVORABLE TIME PERIOD FOR THUNDERSTORMS WILL BE
LATE MONDAY AFTERNOON AND MONDAY EVENING...AND AGAIN WITH A COLD
FRONT TUESDAY. ONCE AGAIN...SOME STORMS MAY BE STRONG TO
SEVERE...WITH LARGE HAIL...FREQUENT LIGHTNING...GUSTY WINDS AND
LOCALLY HEAVY RAINFALL.

.SPOTTER CALL TO ACTION STATEMENT...

AREA WIDE ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT
PERSONNEL IS NOT ANTICIPATED...BUT A FEW SPOTTER GROUPS MAY BE NEEDED
TO RELAY REPORTS OF LOCAL SEVERE WEATHER TO THE NATIONAL WEATHER
SERVICE.

KULA

In the hours before

Special weather statement, May 6, 6:19 PM CDT, 31 minutes before
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Special weather statement, May 6, 6:27 PM CDT, 23 minutes before
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Special weather statement, May 6, 6:29 PM CDT, 21 minutes before
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Special weather statement, May 6, 6:32 PM CDT, 18 minutes before
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Special weather statement, May 6, 6:35 PM CDT, 15 minutes before
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Special weather statement, May 6, 6:39 PM CDT, 11 minutes before
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The office that day

Everything else NWS Huntsville, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 5, 7:16 PM CDTSpecial Weather StatementHUNMorgan29 min
May 6, 12:42 AM CDTSpecial Weather StatementHUNMadison33 min
May 6, 3:43 AM CDTSpecial Weather StatementHUNMarshall47 min
May 6, 4:03 AM CDTSpecial Weather StatementHUNMarshall42 min
May 6, 4:31 AM CDTSpecial Weather StatementHUNMarshall44 min
May 6, 4:59 AM CDTSpecial Weather StatementHUNMarshall46 min
May 6, 5:58 AM CDTSpecial Weather StatementHUNMarshall47 min
May 6, 6:01 AM CDTSpecial Weather StatementHUNMadison29 min
May 6, 6:07 AM CDTSpecial Weather StatementHUNMadison23 min
May 6, 6:20 AM CDTSpecial Weather StatementHUNMorgan25 min
May 6, 6:41 AM CDTSpecial Weather StatementHUNCullman49 min
May 6, 6:45 AM CDTFlash Flood WarningHUNMarshall84 min
May 6, 7:31 AM CDTSpecial Weather StatementHUNMorgan59 min
May 6, 3:25 PM CDTSpecial Weather StatementHUNDeKalb50 min
May 6, 4:05 PM CDTSpecial Weather StatementHUNDeKalb40 min
May 6, 4:12 PM CDTSpecial Weather StatementHUNJackson48 min
May 6, 4:40 PM CDTSpecial Weather StatementHUNLawrence50 min
May 6, 4:45 PM CDTSpecial Weather StatementHUNDeKalb45 min
May 6, 4:57 PM CDTSpecial Weather StatementHUNDeKalb48 min
May 6, 5:00 PM CDTSpecial Weather StatementHUNFranklin45 min
May 6, 5:20 PM CDTSpecial Weather StatementHUNJackson40 min
May 6, 5:31 PM CDTSpecial Weather StatementHUNDeKalb44 min
May 6, 5:41 PM CDTSpecial Weather StatementHUNFranklin49 min
May 6, 5:52 PM CDTSpecial Weather StatementHUNMarshall38 min
May 6, 6:08 PM CDTSevere Thunderstorm WarningHUNFranklin22 min
May 6, 6:25 PM CDTSevere Thunderstorm WarningHUNFranklin23 min
May 6, 6:29 PM CDTSpecial Weather StatementHUNMarshall46 min
May 6, 6:32 PM CDTSpecial Weather StatementHUNJackson28 min
May 6, 6:35 PM CDTSpecial Weather StatementHUNMarshall40 min
May 5, 7:01 PM CDTSpecial Weather StatementHUNMoore29 min
May 5, 7:29 PM CDTSpecial Weather StatementHUNFranklin, Moore31 min
May 5, 7:59 PM CDTSpecial Weather StatementHUNFranklin31 min
May 5, 8:38 PM CDTSpecial Weather StatementHUNMoore37 min
May 6, 4:16 AM CDTSpecial Weather StatementHUNLincoln44 min
May 6, 5:28 AM CDTSpecial Weather StatementHUNLincoln32 min
May 6, 6:19 PM CDTSpecial Weather StatementHUNFranklin41 min
May 6, 6:27 PM CDTSpecial Weather StatementHUNMoore48 min
May 6, 6:39 PM CDTSpecial Weather StatementHUNFranklin51 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2012Every severe thunderstorm warning in 2012

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.