Alert archive / Alabama / Special Weather Statements in 2014

Special Weather Statement, NWS Huntsville, AL

October 7, 2014Limestone County, Alabama

NWS Huntsville, AL issued this special weather statement at Oct 7, 2014, 2:21 AM CDT for Limestone County, Alabama. It was in force for 39 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: Oct 7, 2014, 2:21 AM CDT (07:21 UTC)
Expired: Oct 7, 2014, 3:00 AM CDT
In force: 39 min
Issued by: NWS Huntsville, AL

County Limestone County, AL

The radar

The Northeast Alabama radar (KHTX), 100 km from the middle of the area, began a volume at 07:21 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, 7.4 hours before the alert went out and 159 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: 1087 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 1150 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 187 m²/s²
0-3 km storm-relative helicity: 273 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 4.9

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 Oct 7, 12:24 AM CDT, 1 hour 57 minutes earlier.

Area forecast discussion, Oct 7, 12:24 AM CDT, 1 hour 57 minutes before

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Hazardous weather outlook, Oct 6, 8:10 PM CDT, 6 hours 11 minutes before

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In the hours before

Local storm report, Oct 6, 8:56 PM CDT, 5 hours 25 minutes before

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Special weather statement, Oct 6, 10:59 PM CDT, 3 hours 22 minutes before

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Special weather statement, Oct 7, 1:30 AM CDT, 51 minutes before

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Special weather statement, Oct 7, 2:18 AM CDT, 3 minutes before

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Special weather statement, Oct 7, 2:21 AM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 6, 7:02 PM CDT	Severe Thunderstorm Warning	HUN	Franklin	28 min
Oct 6, 7:07 PM CDT	Special Weather Statement	HUN	Lawrence	38 min
Oct 6, 7:29 PM CDT	Special Weather Statement	HUN	Lawrence	46 min
Oct 6, 8:17 PM CDT	Special Weather Statement	HUN	Cullman	43 min
Oct 6, 10:59 PM CDT	Special Weather Statement	HUN	Jackson	46 min
Oct 7, 1:30 AM CDT	Special Weather Statement	HUN	Lauderdale	45 min
Oct 7, 2:18 AM CDT	Special Weather Statement	HUN	Madison	42 min
Oct 7, 2:54 AM CDT	Special Weather Statement	HUN	Madison	36 min
Oct 7, 3:02 AM CDT	Special Weather Statement	HUN	Limestone	28 min
Oct 7, 3:32 AM CDT	Special Weather Statement	HUN	Jackson	28 min
Oct 7, 2:24 AM CDT	Special Weather Statement	HUN	Franklin	51 min
Oct 7, 2:45 AM CDT	Special Weather Statement	HUN	Franklin	15 min
Oct 7, 3:27 AM CDT	Special Weather Statement	HUN	Franklin	33 min

Nearby

Special Weather Statements in Alabama, 2014 Every special weather statement in 2014

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.