Alert archive / Alabama / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 1, NWS Huntsville, AL

March 9, 2006Colbert County, Franklin County, Lauderdale County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at Mar 9, 2006, 3:00 PM CST for Colbert County, Franklin County, Lauderdale County, Alabama. It was in force for 60 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: Mar 9, 2006, 3:00 PM CST (21:00 UTC)
Expired: Mar 9, 2006, 4:00 PM CST
In force: 60 min
Issued by: NWS Huntsville, AL
Area: Counties, with a storm outline in the text

Counties Colbert County, AL, Franklin County, AL, Lauderdale County, AL

The radar

The Columbus AFB radar (KGWX), 101 km from the middle of the area, began a volume at 21:00 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 9, 2:40 PM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.0 hours before the alert went out and 190 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 564 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 297 m²/s²
0-3 km storm-relative helicity: 314 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 Mar 9, 12:31 PM CST, 2 hours 29 minutes earlier.

Area forecast discussion, Mar 9, 12:31 PM CST, 2 hours 29 minutes before

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Hazardous weather outlook, Mar 9, 2:55 PM CST, 5 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
255 PM CST THU MAR 9 2006

ALZ001>010-016-TNZ076-096-097-100330-
COLBERT-CULLMAN-DE KALB-FRANKLIN AL-FRANKLIN TN-JACKSON-LAUDERDALE-
LAWRENCE-LIMESTONE-LINCOLN-MADISON-MARSHALL-MOORE-MORGAN-
255 PM CST THU MAR 9 2006

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

.DAY ONE...THROUGH TONIGHT...

A LINE OF STRONG TO SEVERE THUNDERSTORMS WILL APPROACH NORTHWEST
ALABAMA AROUND 3 PM. THIS LINE OF STORMS IS EXPECTED TO AFFECT
NORTHWEST ALABAMA BETWEEN 3 AND 5 PM. IN THE HUNTSVILLE AREA THE
STORMS ARE EXPECTED BETWEEN 4 AND 6 PM...AND THESE STORMS ARE
EXPECTED TO SPREAD EAST INTO NORTHEAST ALABAMA BETWEEN 5 AND 8
PM. THE SEVERE WEATHER THREAT WILL END BEFORE MIDNIGHT ACROSS THE
AREA.

THE MAIN THREAT WITH ANY STORMS WILL BE DAMAGING WINDS IN EXCESS OF
60 MPH. ISOLATED TORNADOES WILL ALSO BE POSSIBLE...ESPECIALLY WEST OF
INTERSTATE 65. IN ADDITION...THESE STORMS MAY CONTAIN HEAVY DOWNPOURS
AND HAIL UP TO THE SIZE OF PENNIES.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW.

AN UNSETTLED WEATHER PATTERN WILL KEEP THE CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE FORECAST FROM FRIDAY NIGHT THROUGH TUESDAY. A
COLD FRONT SHOULD MOVE ACROSS THE REGION NEXT TUESDAY...ENDING
THE RAIN CHANCES AND USHERING IN COOLER TEMPERATURES FOR THE MIDDLE
OF NEXT WEEK.

.SPOTTER CALL TO ACTION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL
MAY BE NECESSARY LATER TODAY.

KTW

In the hours before

Special weather statement, Mar 9, 9:37 AM CST, 5 hours 23 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
Mar 9, 4:17 AM CST	Wind Advisory	HUN	Colbert, Cullman, DeKalb, Franklin, Jackson, Lauderdale and 5 more	15 hr
Mar 9, 3:50 PM CST	Severe Thunderstorm Warning	HUN	Colbert, Franklin, Lauderdale, Lawrence	55 min
Mar 9, 4:33 PM CST	Severe Thunderstorm Warning	HUN	Cullman, Limestone, Morgan	57 min
Mar 9, 4:40 PM CST	Severe Thunderstorm Warning	HUN	Lawrence	30 min
Mar 9, 5:02 PM CST	Severe Thunderstorm Warning	HUN	Madison, Marshall	43 min
Mar 9, 5:23 PM CST	Severe Thunderstorm Warning	HUN	Cullman, Morgan	31 min
Mar 9, 5:39 PM CST	Severe Thunderstorm Warning	HUN	DeKalb, Jackson	66 min
Mar 9, 5:46 PM CST	Severe Thunderstorm Warning	HUN	Madison, Marshall	44 min
Mar 9, 5:03 PM CST	Severe Thunderstorm Warning	HUN	Lincoln	57 min
Mar 9, 5:31 PM CST	Severe Thunderstorm Warning	HUN	Moore	39 min
Mar 9, 5:53 PM CST	Severe Thunderstorm Warning	HUN	Franklin	52 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.