Alert archive / Alabama / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 67, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at Apr 20, 2006, 11:16 AM CDT for Franklin County, Alabama. It was in force for 19 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 20, 2006, 11:16 AM CDT (16:16 UTC)
- Expired
- Apr 20, 2006, 11:35 AM CDT
- In force
- 19 min
- Issued by
- NWS Huntsville, AL
- Area
- Counties, with a storm outline in the text
County Franklin County, AL
The radar
The Columbus AFB radar (KGWX), 75 km from the middle of the area, began a volume at 16:18 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, 4.3 hours before the alert went out and 171 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
- 488 J/kg
- Mixed-layer CIN
- -279 J/kg
- Mixed-layer LCL
- 1148 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -119 m²/s²
- 0-3 km storm-relative helicity
- -98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 20, 10:45 AM CDT, 31 minutes earlier.
Area forecast discussion, Apr 20, 10:45 AM CDT, 31 minutes before
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</html>Hazardous weather outlook, Apr 20, 5:00 AM CDT, 6 hours 16 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HUNTSVILLE AL 500 AM CDT THU APR 20 2006 ALZ001>010-016-TNZ076-096-097-201800- COLBERT-CULLMAN-DE KALB-FRANKLIN AL-FRANKLIN TN-JACKSON-LAUDERDALE- LAWRENCE-LIMESTONE-LINCOLN-MADISON-MARSHALL-MOORE-MORGAN- 500 AM CDT THU APR 20 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS OF SOUTHERN MIDDLE TENNESSEE. .DAY ONE...TODAY AND TONIGHT... AN UNSTABLE AIR MASS REMAINS IN PLACE OVER THE AREA. UPPER LEVEL ENERGY STREAMING UP FROM THE SOUTHWEST TODAY AND TONIGHT WILL CAUSE THUNDERSTORMS TO DEVELOP AT TIMES. THE COOL OUTFLOWS FROM INDIVIDUAL THUNDERSTORMS AND ORGANIZED LINES OF THUNDERSTORMS WILL BE CAPABLE OF GENERATING MORE THUNDERSTORMS. A FEW OF THE THUNDERSTORMS TODAY AND TONIGHT WILL BECOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS POSSIBLE. LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE DUE TO THE SLOW MOVEMENT OF THE THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... A COLD FRONT WILL MOVE IN FROM THE WEST ON FRIDAY ALONG WITH A STRONG UPPER TROUGH. THAT COMBINATION WILL RESULT IN MORE THUNDERSTORM COVERAGE OVER THE AREA...AND A SLIGHT RISK OF SEVERE THUNDERSTORMS WITH DAMAGING WINDS AND ISOLATED TORNADOES THE MAIN THREATS. THE ACTIVITY COULD EXTEND WELL INTO THE EVENING...THEN DIMINISH OVERNIGHT AND EARLY SATURDAY AS THE FRONT MOVES THROUGH. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL MAY BE NECESSARY AT TIMES THROUGH FRIDAY. SCHAUB
In the hours before
Special weather statement, Apr 20, 7:59 AM CDT, 3 hours 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 759 AM CDT THU APR 20 2006 ALZ002-201345- COLBERT- 759 AM CDT THU APR 20 2006 ...SIGNIFICANT WEATHER ALERT FOR SOUTHWEST COLBERT COUNTY UNTIL 845 AM CDT... AT 753 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR BURTON...OR 13 MILES NORTHWEST OF RED BAY... MOVING EAST AT 30 MPH. DIME SIZE HAIL AND WINDS UP TO 50 MPH ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... MAUD. ALLSBORO. MYNOT. MT HESTER. SRYGLEY CHURCH. RED ROCK. THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A WARNING IS ISSUED. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. 10
Special weather statement, Apr 20, 8:45 AM CDT, 2 hours 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 845 AM CDT THU APR 20 2006 ALZ002-201430- COLBERT- 845 AM CDT THU APR 20 2006 ...SIGNIFICANT WEATHER ALERT FOR COLBERT COUNTY UNTIL 930 AM CDT... AT 841 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7 MILES SOUTH OF CHEROKEE...OR 16 MILES SOUTHEAST OF IUKA...MOVING EAST AT 25 MPH. ONE HALF INCH DIAMETER HAIL...WINDS UP TO 40 MPH...AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... RED ROCK. BARTON. CHEROKEE. PRIDE LANDING. TUSCUMBIA. MUSCLE SHOALS. THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A WARNING IS ISSUED. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. 10
Special weather statement, Apr 20, 9:09 AM CDT, 2 hours 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 909 AM CDT THU APR 20 2006 ALZ001-201530- LAUDERDALE- 909 AM CDT THU APR 20 2006 ...SIGNIFICANT WEATHER ALERT FOR LAUDERDALE COUNTY UNTIL 1030 AM CDT... AT 907 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR CHEROKEE...OR 14 MILES EAST OF IUKA...MOVING NORTHEAST AT 30 MPH. ONE HALF INCH DIAMETER HAIL AND WINDS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... OAKLAND. THREET. UNDERWOOD-PETERSVILLE. ST. FLORIAN. KILLEN. GREEN HILL. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. SS
Special weather statement, Apr 20, 9:09 AM CDT, 2 hours 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 909 AM CDT THU APR 20 2006 ALZ001-201530- LAUDERDALE- 909 AM CDT THU APR 20 2006 ...SIGNIFICANT WEATHER ALERT FOR LAUDERDALE COUNTY UNTIL 1030 AM CDT... AT 907 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR CHEROKEE...OR 14 MILES EAST OF IUKA...MOVING NORTHEAST AT 30 MPH. ONE HALF INCH DIAMETER HAIL AND WINDS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... OAKLAND. THREET. UNDERWOOD-PETERSVILLE. ST. FLORIAN. KILLEN. GREEN HILL. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION.
Local storm report, Apr 20, 10:27 AM CDT, 49 minutes before
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</html>Special weather statement, Apr 20, 10:31 AM CDT, 45 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 19, 7:38 PM CDT | Severe Thunderstorm Warning | HUN | DeKalb | 25 min |
| Apr 19, 7:44 PM CDT | Severe Thunderstorm Warning | HUN | Jackson | 22 min |
| Apr 19, 7:44 PM CDT | Severe Thunderstorm Warning | HUN | Cullman | 46 min |
| Apr 19, 7:55 PM CDT | Severe Thunderstorm Warning | HUN | Cullman | 50 min |
| Apr 19, 8:22 PM CDT | Flash Flood Warning | HUN | Cullman | 3 hr |
| Apr 19, 8:27 PM CDT | Severe Thunderstorm Warning | HUN | Cullman | 48 min |
| Apr 19, 9:13 PM CDT | Severe Thunderstorm Warning | HUN | Cullman | 47 min |
| Apr 19, 11:13 PM CDT | Flash Flood Warning | HUN | Cullman | 6 hr |
| Apr 19, 11:52 PM CDT | Severe Thunderstorm Warning | HUN | Morgan | 38 min |
| Apr 20, 12:28 AM CDT | Severe Thunderstorm Warning | HUN | Morgan | 47 min |
| Apr 20, 8:04 AM CDT | Severe Thunderstorm Warning | HUN | Colbert | 41 min |
| Apr 20, 9:44 AM CDT | Severe Thunderstorm Warning | HUN | Lauderdale | 31 min |
| Apr 20, 10:07 AM CDT | Severe Thunderstorm Warning | HUN | Limestone | 38 min |
| Apr 20, 2:40 PM CDT | Severe Thunderstorm Warning | HUN | Cullman | 50 min |
| Apr 20, 3:16 PM CDT | Severe Thunderstorm Warning | HUN | Marshall | 44 min |
| Apr 20, 3:28 PM CDT | Severe Thunderstorm Warning | HUN | Cullman | 33 min |
| Apr 20, 4:12 PM CDT | Severe Thunderstorm Warning | HUN | DeKalb | 33 min |
| Apr 20, 4:35 PM CDT | Severe Thunderstorm Warning | HUN | Marshall | 25 min |
| Apr 20, 5:33 PM CDT | Flash Flood Warning | HUN | Cullman | 3 hr |
| Apr 20, 5:36 PM CDT | Severe Thunderstorm Warning | HUN | Cullman | 39 min |
| Apr 20, 5:38 PM CDT | Severe Thunderstorm Warning | HUN | DeKalb, Marshall | 52 min |
| Apr 20, 6:10 PM CDT | Severe Thunderstorm Warning | HUN | Cullman, Morgan | 50 min |
| Apr 20, 6:14 PM CDT | Tornado Warning | HUN | Cullman, Morgan | 46 min |
| Apr 20, 6:27 PM CDT | Tornado Warning | HUN | Marshall | 33 min |
| Apr 20, 6:42 PM CDT | Severe Thunderstorm Warning | HUN | Morgan | 33 min |
| Apr 20, 6:58 PM CDT | Severe Thunderstorm Warning | HUN | Madison | 47 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2006Every 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.