Alert archive / Tennessee / Special Weather Statements in 2012

Special Weather Statement, NWS Huntsville, AL

July 10, 2012Franklin County, Tennessee

NWS Huntsville, AL issued this special weather statement at Jul 10, 2012, 10:56 AM CDT for Franklin County, Tennessee. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 10, 2012, 10:56 AM CDT (15:56 UTC)
Expired
Jul 10, 2012, 11:30 AM CDT
In force
34 min
Issued by
NWS Huntsville, AL

County Franklin County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 3.9 hours before the alert went out and 123 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 2012-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 586 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 2012-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 square meters per square second.1939Sfc1 km3 km6 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
586 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
564 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 10, 10:46 AM CDT, 10 minutes earlier.

Area forecast discussion, Jul 10, 10:46 AM CDT, 10 minutes before
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Hazardous weather outlook, Jul 10, 4:02 AM CDT, 6 hours 54 minutes before
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In the hours before

Special weather statement, Jul 10, 10:28 AM CDT, 28 minutes before
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Special weather statement, Jul 10, 10:56 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 10:28 AM CDTSpecial Weather StatementHUNDeKalb32 min
Jul 10, 12:04 PM CDTSpecial Weather StatementHUNDeKalb26 min
Jul 10, 12:41 PM CDTSpecial Weather StatementHUNJackson34 min
Jul 10, 1:08 PM CDTSpecial Weather StatementHUNJackson37 min
Jul 10, 2:09 PM CDTSpecial Weather StatementHUNJackson36 min
Jul 10, 2:50 PM CDTSpecial Weather StatementHUNMarshall40 min
Jul 10, 2:57 PM CDTSpecial Weather StatementHUNDeKalb33 min
Jul 10, 3:31 PM CDTSpecial Weather StatementHUNJackson44 min
Jul 10, 3:34 PM CDTSpecial Weather StatementHUNLimestone41 min
Jul 10, 4:05 PM CDTSpecial Weather StatementHUNMarshall25 min
Jul 10, 4:53 PM CDTSpecial Weather StatementHUNMorgan37 min
Jul 10, 5:06 PM CDTSpecial Weather StatementHUNLawrence39 min
Jul 10, 5:09 PM CDTSpecial Weather StatementHUNMorgan36 min
Jul 10, 5:25 PM CDTSpecial Weather StatementHUNLawrence35 min
Jul 10, 5:51 PM CDTSpecial Weather StatementHUNLauderdale24 min
Jul 10, 6:11 PM CDTSpecial Weather StatementHUNCullman34 min
Jul 10, 6:44 PM CDTSpecial Weather StatementHUNLawrence31 min
Jul 10, 1:14 PM CDTSpecial Weather StatementHUNFranklin31 min
Jul 10, 1:37 PM CDTSpecial Weather StatementHUNFranklin, Moore38 min
Jul 10, 2:23 PM CDTSpecial Weather StatementHUNFranklin37 min

Nearby

Special Weather Statements in Tennessee, 2012Every special weather statement 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.