Alert archive / Alabama / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 101, NWS Huntsville, AL

May 27, 2008Franklin County, Lawrence County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at May 27, 2008, 2:11 PM CDT for Franklin County, Lawrence County, Alabama. It was in force for 49 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 27, 2008, 2:11 PM CDT (19:11 UTC)
Expired: May 27, 2008, 3:00 PM CDT
In force: 49 min
Issued by: NWS Huntsville, AL
Area: Storm-based polygon

Counties Franklin County, AL, Lawrence County, AL

The radar

The Columbus AFB radar (KGWX), 95 km from the middle of the area, began a volume at 19:14 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 12:00Z, 7.2 hours before the alert went out and 162 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: 308 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 733 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 8 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 27, 12:02 PM CDT, 2 hours 9 minutes earlier.

Area forecast discussion, May 27, 12:02 PM CDT, 2 hours 9 minutes before

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Hazardous weather outlook, May 27, 12:45 PM CDT, 1 hour 26 minutes before

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In the hours before

Local storm report, May 27, 10:09 AM CDT, 4 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1009 AM CDT TUE MAY 27 2008

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

0715 AM     TSTM WND DMG     CHALYBEATE SPRINGS      34.57N 87.23W
05/27/2008                   LAWRENCE           AL   EMERGENCY MNGR

            TREE BLOWN DOWN ONTO A MOBILE HOME AND A CAR IN THE
            CHALYBEATE SPRINGS COMMUNITY ON COUNTY ROAD 217. PEA SIZE
            HAIL ALSO REPORTED.

0725 AM     TSTM WND DMG     CHALYBEATE SPRINGS      34.57N 87.23W
05/27/2008                   LAWRENCE           AL   EMERGENCY MNGR

            TREE FELL ON FRONT PORCH OF HOUSE AND FRONT PORCH PULLED
            OUT FROM DOUBLE WIDE TRAILER ON COUNTY ROAD 301.

&&

KWEBER

Local storm report, May 27, 10:43 AM CDT, 3 hours 28 minutes before

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Local storm report, May 27, 11:45 AM CDT, 2 hours 26 minutes before

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Local storm report, May 27, 11:45 AM CDT, 2 hours 26 minutes before

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Special weather statement, May 27, 1:10 PM CDT, 1 hour 1 minute before

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Special weather statement, May 27, 1:45 PM CDT, 26 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 27, 7:32 AM CDT	Severe Thunderstorm Warning	HUN	Lawrence, Morgan	28 min
May 27, 7:42 AM CDT	Flash Flood Warning	HUN	Lauderdale, Lawrence, Limestone	3 hr
May 27, 8:39 AM CDT	Flash Flood Warning	HUN	Colbert, Lauderdale, Lawrence	3 hr
May 27, 9:43 AM CDT	Flash Flood Warning	HUN	Colbert	2 hr
May 27, 10:41 AM CDT	Flash Flood Warning	HUN	Lauderdale, Lawrence, Limestone	3 hr
May 27, 11:42 AM CDT	Flash Flood Warning	HUN	Colbert, Lauderdale, Lawrence	2 hr
May 27, 1:36 PM CDT	Flash Flood Warning	HUN	Colbert, Franklin, Lauderdale, Lawrence	6 hr
May 27, 1:53 PM CDT	Flash Flood Warning	HUN	Cullman	2 hr
May 27, 1:59 PM CDT	Severe Thunderstorm Warning	HUN	Colbert, Lawrence	46 min
May 27, 2:40 PM CDT	Severe Thunderstorm Warning	HUN	Colbert, Lawrence	50 min
May 27, 2:59 PM CDT	Severe Thunderstorm Warning	HUN	Franklin, Lawrence	31 min
May 27, 3:18 PM CDT	Severe Thunderstorm Warning	HUN	Marshall	42 min
May 27, 4:29 PM CDT	Severe Thunderstorm Warning	HUN	Jackson, Marshall	17 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.