Alert archive / Alabama / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 63, NWS Huntsville, AL

May 3, 2008Cullman County, Morgan County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at May 3, 2008, 5:25 AM CDT for Cullman County, Morgan County, Alabama. It was in force for 23 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 3, 2008, 5:25 AM CDT (10:25 UTC)
Expired: May 3, 2008, 5:48 AM CDT
In force: 23 min
Issued by: NWS Huntsville, AL
Area: Storm-based polygon

Counties Cullman County, AL, Morgan County, AL

The radar

The Northeast Alabama radar (KHTX), 100 km from the middle of the area, began a volume at 10:26 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

Birmingham, AL (KBMX), launched 00:00Z, 10.4 hours before the alert went out and 124 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: 28 J/kg
Mixed-layer CIN: -185 J/kg
Mixed-layer LCL: 1506 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 3, 3:50 AM CDT, 1 hour 35 minutes earlier.

Area forecast discussion, May 3, 3:50 AM CDT, 1 hour 35 minutes before

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Hazardous weather outlook, May 3, 4:58 AM CDT, 27 minutes before

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In the hours before

Special weather statement, May 3, 2:22 AM CDT, 3 hours 3 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
May 2, 7:36 PM CDT	Tornado Warning	HUN	Lauderdale	27 min
May 2, 8:27 PM CDT	Severe Thunderstorm Warning	HUN	Colbert, Lauderdale	48 min
May 2, 8:50 PM CDT	Tornado Warning	HUN	Colbert, Lauderdale	25 min
May 2, 9:14 PM CDT	Tornado Warning	HUN	Lauderdale	16 min
May 3, 2:48 AM CDT	Severe Thunderstorm Warning	HUN	Colbert, Lauderdale	42 min
May 3, 5:13 AM CDT	Severe Thunderstorm Warning	HUN	Jackson, Madison	32 min

Nearby

Severe Thunderstorm Warnings in Alabama, 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.