Alert archive / Alabama / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 211, NWS Huntsville, AL

July 28, 2006Lawrence County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at Jul 28, 2006, 12:51 PM CDT for Lawrence 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 counties it named.

The facts

Issued: Jul 28, 2006, 12:51 PM CDT (17:51 UTC)
Expired: Jul 28, 2006, 1:30 PM CDT
In force: 39 min
Issued by: NWS Huntsville, AL
Area: Counties, with a storm outline in the text

County Lawrence County, AL

The radar

The Columbus AFB radar (KGWX), 117 km from the middle of the area, began a volume at 17:51 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, 5.9 hours before the alert went out and 157 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: 967 J/kg
Mixed-layer CIN: -101 J/kg
Mixed-layer LCL: 1079 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 2 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 Jul 28, 10:46 AM CDT, 2 hours 5 minutes earlier.

Area forecast discussion, Jul 28, 10:46 AM CDT, 2 hours 5 minutes before

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Hazardous weather outlook, Jul 28, 11:51 AM CDT, 1 hour before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1151 AM CDT FRI JUL 28 2006

ALZ001>010-016-TNZ076-096-097-290200-
COLBERT-CULLMAN-DE KALB-FRANKLIN AL-FRANKLIN TN-JACKSON-LAUDERDALE-
LAWRENCE-LIMESTONE-LINCOLN-MADISON-MARSHALL-MOORE-MORGAN-
1151 AM CDT FRI JUL 28 2006

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

.DAY ONE...TODAY AND TONIGHT...

AN UPPER LEVEL DISTURBANCE MOVING EAST THROUGH THE MID SOUTH WILL
INTERACT WITH TROPICAL MOISTURE AND INSTABILITY ACROSS THE REGION TO
PRODUCE NUMEROUS THUNDERSTORMS AND SHOWERS THIS AFTERNOON.  THE
STRONGER STORMS WILL BE CAPABLE OF FREQUENT LIGHTNING...HEAVY
DOWNPOURS...AND GUSTY WINDS.  THE THREAT FOR THUNDERSTORMS WILL
DIMINISH AFTER 7 PM.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW.

SCATTERED MAINLY AFTERNOON AND EARLY EVENING THUNDERSTORMS WILL BE
POSSIBLE THROUGH THE PERIOD.

.SPOTTER CALL TO ACTION STATEMENT...

FORMAL ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT
PERSONNEL IS UNLIKELY AT THIS TIME.  HOWEVER...A FEW OF THE STRONGER
STORMS MAY REQUIRE A FEW STORM STORM REPORTS TO BE RELAYED.

KULA

In the hours before

Special weather statement, Jul 28, 12:04 PM CDT, 47 minutes before

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Special weather statement, Jul 28, 12:28 PM CDT, 23 minutes before

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Special weather statement, Jul 28, 12:33 PM CDT, 18 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
Jul 28, 12:24 PM CDT	Severe Thunderstorm Warning	HUN	Franklin	36 min
Jul 28, 12:40 PM CDT	Severe Thunderstorm Warning	HUN	Madison	50 min
Jul 28, 1:07 PM CDT	Severe Thunderstorm Warning	HUN	Colbert	38 min
Jul 28, 1:40 PM CDT	Severe Thunderstorm Warning	HUN	Jackson	50 min
Jul 28, 2:07 PM CDT	Severe Thunderstorm Warning	HUN	Madison	38 min
Jul 28, 2:47 PM CDT	Severe Thunderstorm Warning	HUN	Marshall	28 min
Jul 28, 3:45 PM CDT	Severe Thunderstorm Warning	HUN	Franklin	33 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2006 Every severe thunderstorm warning in 2006

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.