Alert archive / Alabama / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 150, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at Jun 5, 2011, 1:18 PM CDT for Colbert County, Lauderdale County, Lawrence County, Alabama. It was in force for 27 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
- Jun 5, 2011, 1:18 PM CDT (18:18 UTC)
- Expired
- Jun 5, 2011, 1:45 PM CDT
- In force
- 27 min
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
Counties Colbert County, AL, Lauderdale County, AL, Lawrence County, AL
The radar
The Columbus AFB radar (KGWX), 113 km from the middle of the area, began a volume at 18:19 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 12:00Z, 6.3 hours before the alert went out and 182 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.
- Mixed-layer CAPE
- 2600 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 1253 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 Jun 5, 12:39 PM CDT, 39 minutes earlier.
Area forecast discussion, Jun 5, 12:39 PM CDT, 39 minutes before
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</html>Hazardous weather outlook, Jun 5, 11:36 AM CDT, 1 hour 42 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HUNTSVILLE AL 1136 AM CDT SUN JUN 5 2011 ALZ001>010-016-TNZ076-096-097-060000- LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- 1136 AM CDT SUN JUN 5 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS OF SOUTHERN MIDDLE TENNESSEE. .DAY ONE...THIS AFTERNOON AND TONIGHT... HEAT INDEX VALUES WILL RISE TO OR JUST ABOVE 105 DEGREES ACROSS PARTS OF NORTHWEST ALABAMA. THIS WILL ELEVATE THE THREAT FOR HEAT RELATED ILLNESSES. THOSE PERFORMING OUTDOOR ACTIVITIES SHOULD TAKE IT EASY... DRINK PLENTY OF WATER AND REMAIN AWARE OF THE DANGERS OF HEAT PRODUCED AILMENTS. A HEAT ADVISORY IS IN EFFECT FOR NORTHWEST ALABAMA THROUGH 7 PM THIS EVENING. ISOLATED THUNDERSTORMS ARE POSSIBLE AS WELL...ESPECIALLY ACROSS NORTHEAST ALABAMA AND SOUTHERN MIDDLE TENNESSEE ALONG THE CUMBERLAND PLATEAU. GUSTY OUTFLOW WINDS WILL BE THE PRIMARY THREAT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY... HOT AND HUMID CONDITIONS WILL CONTINUE THROUGH THE WEEK WITH AFTERNOON HIGH TEMPERATURES APPROACHING UPPER 90S AND HEAT INDEX VALUES HOVERING IN THE LOW 100S IN SOME LOCATIONS. DUE TO THE PROLONGED PERIOD OF HOT AND HUMID CONDITIONS ACROSS THE TENNESSEE VALLEY...AN INCREASED RISK FOR HEAT RELATED ILLNESSES WILL CONTINUE THIS WEEK. ISOLATED AFTERNOON THUNDERSTORMS WILL BE POSSIBLE LATE IN THE WEEK. GUSTY WINDS AND BRIEF HEAVY RAINFALL WILL BE THE PRIMARY THREATS. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS NOT ANTICIPATED AT THIS TIME. RSB
The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 11:18 AM CDT | Heat Advisory | HUN | Colbert, Franklin, Lauderdale, Lawrence | 3 hr |
| Jun 5, 1:30 PM CDT | Special Weather Statement | HUN | Franklin | 30 min |
| Jun 5, 1:44 PM CDT | Severe Thunderstorm Warning | HUN | Colbert | 34 min |
| Jun 5, 1:47 PM CDT | Severe Thunderstorm Warning | HUN | Lauderdale, Lawrence, Limestone | 43 min |
| Jun 5, 2:31 PM CDT | Special Weather Statement | HUN | Franklin | 29 min |
| Jun 5, 2:41 PM CDT | Special Weather Statement | HUN | Lawrence | 49 min |
| Jun 5, 3:05 PM CDT | Special Weather Statement | HUN | Franklin | 25 min |
| Jun 5, 3:12 PM CDT | Severe Thunderstorm Warning | HUN | Franklin | 33 min |
| Jun 5, 3:47 PM CDT | Special Weather Statement | HUN | Franklin | 28 min |
| Jun 5, 1:58 PM CDT | Severe Thunderstorm Warning | HUN | Lincoln, Moore | 47 min |
| Jun 5, 2:45 PM CDT | Special Weather Statement | HUN | Lincoln | 45 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2011Every severe thunderstorm warning in 2011
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.