Alert archive / Alabama / Special Weather Statements in 2011
Special Weather Statement, NWS Huntsville, AL
NWS Huntsville, AL issued this special weather statement at Aug 5, 2011, 5:03 PM CDT for Jackson 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 outline as issued.
The facts
- Issued
- Aug 5, 2011, 5:03 PM CDT (22:03 UTC)
- Expired
- Aug 5, 2011, 5:30 PM CDT
- In force
- 27 min
- Issued by
- NWS Huntsville, AL
County Jackson County, AL
The radar
The Northeast Alabama radar (KHTX), 22 km from the middle of the area, began a volume at 22:06 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, 10.1 hours before the alert went out and 155 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
- 2607 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 671 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
Hazardous weather outlook, Aug 4, 5:10 PM CDT, 23 hours 53 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE HUNTSVILLE AL 510 PM CDT THU AUG 4 2011 ALZ001>010-016-TNZ076-096-097-051000- LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- 510 PM CDT THU AUG 4 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS OF SOUTHERN MIDDLE TENNESSEE. .DAY ONE...THIS AFTERNOON AND TONIGHT... SCATTERED THUNDERSTORMS ARE LIKELY...MAINLY OVER NORTHWEST ALABAMA...WITH GUSTY WINDS...HAIL...FREQUENT CLOUD TO GROUND LIGHTNING STRIKES. TORRENTIAL RAINFALL IS ALSO POSSIBLE IN THESE STORMS. A FEW OF THE STORMS COULD BECOME SEVERE...WITH DAMAGING WINDS POSSIBLE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... THERE IS A CHANCE OF MAINLY AFTERNOON AND EVENING THUNDERSTORMS THROUGH WEDNESDAY. A FEW STRONG STORMS WILL BE POSSIBLE EACH DAY... WITH GUSTY WINDS...LIGHTNING...AND LOCALLY HEAVY RAINFALL THE PRIMARY HAZARDS. HEAT INDEX VALUES MAY REACH DANGEROUS LEVELS THROUGH THE UPCOMING WEEKEND...WITH AFTERNOON HEAT INDICES POSSIBLY WARRANTING HEAT ADVISORIES THROUGH THE PERIOD. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS POSSIBLE THIS AFTERNOON AND EVENING...AND STORM REPORTS ARE ALWAYS GREATLY APPRECIATED. DD/JLL/CA
The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 12:54 AM CDT | Dense Fog Advisory | HUN | DeKalb, Jackson, Marshall | 7 hr |
| Aug 5, 4:43 AM CDT | Heat Advisory | HUN | Colbert, Lauderdale | 11 hr |
| Aug 5, 3:09 PM CDT | Special Weather Statement | HUN | Lauderdale | 36 min |
| Aug 5, 5:25 PM CDT | Special Weather Statement | HUN | Jackson | 35 min |
| Aug 5, 5:45 PM CDT | Special Weather Statement | HUN | DeKalb | 30 min |
| Aug 5, 2:43 PM CDT | Special Weather Statement | HUN | Franklin | 32 min |
Nearby
Special Weather Statements in Alabama, 2011Every special weather statement 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.