Alert archive / Alabama / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 51, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at Apr 6, 2005, 7:05 PM CDT for Colbert County, Alabama. It was in force for 25 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
- Apr 6, 2005, 7:05 PM CDT (00:05 UTC)
- Expired
- Apr 6, 2005, 7:30 PM CDT
- In force
- 25 min
- Issued by
- NWS Huntsville, AL
- Area
- Counties, with a storm outline in the text
County Colbert County, AL
The radar
The Columbus AFB radar (KGWX), 101 km from the middle of the area, began a volume at 00:06 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
Birmingham, AL (KBMX), launched 00:00Z, 0.1 hours before the alert went out and 194 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
- 31 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 831 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 341 m²/s²
- 0-3 km storm-relative helicity
- 365 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
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 Apr 6, 5:27 PM CDT, 1 hour 38 minutes earlier.
Area forecast discussion, Apr 6, 5:27 PM CDT, 1 hour 38 minutes before
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</html>Hazardous weather outlook, Apr 6, 12:45 PM CDT, 6 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HUNTSVILLE AL 1245 PM CDT WED APR 6 2005 ALZ001>010-016-TNZ076-096-097-070230- COLBERT-CULLMAN-DE KALB-FRANKLIN AL-FRANKLIN TN-JACKSON-LAUDERDALE- LAWRENCE-LIMESTONE-LINCOLN-MADISON-MARSHALL-MOORE-MORGAN- 1245 PM CDT WED APR 6 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PARTS OF SOUTHERN MIDDLE TENNESSEE... .DAY ONE...(THROUGH TONIGHT)... PERIODS OF THUNDERSTORMS WILL CONTINUE THROUGH THE DAY...AS A CLOSED UPPER LOW MOVES SLOWLY EASTWARD THROUGH THE LOWER MISSISSIPPI VALLEY TODAY AND INTO THE TENNESSEE VALLEY TONIGHT. PARTS OF NORTHWEST ALABAMA RECEIVED OVER AN INCH OF RAINFALL WITH THUNDERSTORMS EARLY IN THE DAY. A FLOOD WATCH IS IN EFFECT FOR THAT AREA UNTIL MIDNIGHT. THE THREAT FOR SEVERE WEATHER REMAINS RELATIVELY LOW ACROSS THE TENNESSEE VALLEY DUE TO EXTENSIVE CLOUD COVER AND RAIN. ONE OR MORE LINES OF THUNDERSTORMS WILL MOVE ACROSS THE AREA LATER THIS AFTERNOON AND DURING THE EVENING. ISOLATED DAMAGING WINDS WILL BE POSSIBLE WITH THESE STORMS. .DAYS TWO THROUGH SEVEN...(THURSDAY THROUGH TUESDAY)... THE UPPER LOW WILL MOVE ACROSS THE AREA ON THURSDAY WITH SHOWERS LIKELY AND ISOLATED THUNDERSTORMS...MAINLY DURING THE AFTERNOON. WITH FREEZING LEVELS ALOFT EXPECTED TO BE RELATIVELY LOW...ANY THUNDERSTORM THAT DOES DEVELOP ON THURSDAY WILL BE CAPABLE OF PRODUCING PEA SIZE HAIL. THE UPPER LOW WILL BEGIN TO PUSH EAST OF THE AREA THURSDAY NIGHT WITH A RETURN TO DRY AND SEASONABLE WEATHER FOR THE UPCOMING WEEKEND. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY PERSONNEL IS POSSIBLE LATER THIS AFTERNOON. PERSONS ARE URGED TO KEEP AWARE OF THE LATEST WEATHER INFORMATION TODAY AND TONIGHT. 24
In the hours before
Special weather statement, Apr 6, 1:40 PM CDT, 5 hours 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 140 PM CDT WED APR 6 2005 ALZ001-002-061930- COLBERT-LAUDERDALE- 140 PM CDT WED APR 6 2005 ...SIGNIFICANT WEATHER ALERT FOR GUSTY WINDS IN NORTHWEST ALABAMA... AN AREA OF MODERATE RAIN...WITH EMBEDDED THUNDERSTORMS...WILL MOVE ACROSS LAUDERDALE AND COLBERT COUNTIES THROUGH 2:30 PM. WIND GUSTS ASSOCIATED WITH THUNDERSTORMS COULD REACH 40 MPH. STAY TUNED FOR LATER STATEMENTS FROM THE NATIONAL WEATHER SERVICE IN HUNTSVILLE. 24
Special weather statement, Apr 6, 6:30 PM CDT, 35 minutes before
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</html>Special weather statement, Apr 6, 6:53 PM CDT, 12 minutes before
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</html>The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 1:52 PM CDT | Severe Thunderstorm Warning | HUN | Madison, Marshall | 23 min |
| Apr 7, 2:16 PM CDT | Severe Thunderstorm Warning | HUN | Marshall | 30 min |
| Apr 7, 2:33 PM CDT | Severe Thunderstorm Warning | HUN | Jackson | 27 min |
| Apr 7, 3:00 PM CDT | Severe Thunderstorm Warning | HUN | Jackson | 49 min |
| Apr 7, 3:12 PM CDT | Severe Thunderstorm Warning | HUN | Marshall, Morgan | 48 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2005Every severe thunderstorm warning in 2005
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.