Alert archive / Alabama / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 29, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at Apr 3, 2007, 11:46 PM CDT for Marshall County, Alabama. It was in force for 30 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 3, 2007, 11:46 PM CDT (04:46 UTC)
- Expired
- Apr 4, 2007, 12:16 AM CDT
- In force
- 30 min
- Issued by
- NWS Huntsville, AL
- Area
- Counties, with a storm outline in the text
County Marshall County, AL
The radar
The Northeast Alabama radar (KHTX), 66 km from the middle of the area, began a volume at 04:48 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 |
|---|---|---|---|
| Apr 3, 8:03 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 4.8 hours before the alert went out and 139 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
- 1952 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 863 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 169 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 7.0
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 3, 8:50 PM CDT, 2 hours 56 minutes earlier.
Area forecast discussion, Apr 3, 8:50 PM CDT, 2 hours 56 minutes before
AREA FORECAST DISCUSSION...UPDATE NATIONAL WEATHER SERVICE HUNTSVILLE AL 850 PM CDT TUE APR 3 2007 .UPDATE... UPDATED ZONES TO INCLUDE TORNADO WATCH 117 IN EFFECT UNTIL 2 AM CDT. ISOLATED SHOWERS AND THUNDERSTORMS HAVE DEVELOPED ACROSS THE TENNESSEE VALLEY OVER THE LAST COUPLE OF HOURS AHEAD OF THE MAIN LINE THAT IS MOVING THROUGH WESTERN TN. THESE THUNDERSTORMS THAT HAVE DEVELOPED ARE MORE PULSE TYPE STORMS...DEVELOPING QUICKLY AND BECOMING STRONG...AND THEN DISSIPATING. THE MAIN THREAT CONTINUES TO BE THE LINE OF THUNDERSTORMS THAT IS ALONG AND AHEAD OF THE COLD FRONT. THIS LINE IS MOVING SE TOWARDS THE AREA...AND WILL BEGIN TO AFFECT NW AL WITHIN THE NEXT COUPLE OF HOURS. AIRMASS ACROSS THE TN VALLEY REMAINS UNSTABLE WITH DEWPOINTS IN THE LOWER 60S AND TEMPS STILL IN THE UPPER 70S IN SOME LOCATIONS. MAIN THREATS WILL CONTINUE TO BE LARGE HAIL AND DAMAGING WINDS. STRONG SHEAR WAS NOTED ON THE 00Z BNA SOUNDING AND WHILE SHEAR IS NOT QUITE AS IMPRESSIVE FURTHER SOUTH...AN ISOLATED TORNADO CANNOT BE RULED OUT. WILL ADDRESS THE REST OF THE FORECAST LATER TONIGHT AFTER THE SEVERE THREAT HAS DIMINISHED. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && 24
Hazardous weather outlook, Apr 3, 11:30 PM CDT, 16 minutes before
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Special weather statement, Apr 3, 7:50 PM CDT, 3 hours 56 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 750 PM CDT TUE APR 3 2007 ALZ005-040115- LIMESTONE- 750 PM CDT TUE APR 3 2007 ...SIGNIFICANT WEATHER ALERT FOR NORTHERN LIMESTONE COUNTY UNTIL 815 PM CDT... AT 750 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6 MILES NORTHEAST OF ATHENS...MOVING EAST AT 35 MPH. ONE HALF INCH DIAMETER HAIL...FREQUENT CLOUD TO GROUND LIGHTNING... AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... HOLLAND GIN. BETHEL. ELKMONT. ANOTHER STORM WAS LOCATED 6 MILES NORTHWEST OF ATHENS...ALSO MOVING EAST AT 35 MPH...BUT THIS STORM WAS SHOWING INDICATIONS OF WEAKENING. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. JE
Special weather statement, Apr 3, 8:21 PM CDT, 3 hours 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 821 PM CDT TUE APR 3 2007 ALZ005-006-040145- LIMESTONE-MADISON- 821 PM CDT TUE APR 3 2007 ...SIGNIFICANT WEATHER ALERT FOR EXTREME NORTHEASTERN LIMESTONE AND NORTHERN MADISON COUNTIES UNTIL 845 PM CDT... AT 821 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM JUST WEST OF HARVEST...OR 11 MILES NORTHEAST OF ATHENS...MOVING EAST AT 35 MPH. ONE HALF INCH DIAMETER HAIL...WINDS UP TO 30 MPH...FREQUENT LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... HARVEST. TONEY. GLADSTONE. A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA UNTIL 2 AM CDT. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. JE
Special weather statement, Apr 3, 8:45 PM CDT, 3 hours 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 845 PM CDT TUE APR 3 2007 ALZ006-040215- MADISON- 845 PM CDT TUE APR 3 2007 ...SIGNIFICANT WEATHER ALERT FOR NORTHERN MADISON COUNTY UNTIL 915 PM CDT... AT 845 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM JUST WEST OF HAZEL GREEN...OR 7 MILES NORTHWEST OF MERIDIANVILLE...MOVING EAST AT 25 MPH. DIME SIZE HAIL...WINDS UP TO 30 MPH...FREQUENT LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... GLADSTONE. HAZEL GREEN. FISK. NEW MARKET. PLEVNA. A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA UNTIL 2 AM CDT. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. JE
Special weather statement, Apr 3, 10:30 PM CDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 1030 PM CDT TUE APR 3 2007 ALZ002-004-005-040400- COLBERT-LAWRENCE-LIMESTONE- 1030 PM CDT TUE APR 3 2007 ...SIGNIFICANT WEATHER ALERT FOR COLBERT...LAUDERDALE...NORTHERN LAWRENCE AND LIMESTONE COUNTIES UNTIL 1100 PM CDT... AT 1030 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM ARDMORE TO 7 MILES SOUTHWEST OF CHEROKEE...OR ALONG A LINE EXTENDING FROM 15 MILES NORTHEAST OF ATHENS TO 9 MILES SOUTHEAST OF IUKA...MOVING SOUTHEAST AT 25 MPH. ONE HALF INCH DIAMETER HAIL...WINDS UP TO 50 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THESE STORMS. * LOCATIONS IN OR NEAR THE PATH INCLUDE... BARTON. RED ROCK. RED BANK. SRYGLEY CHURCH. WHITEOAK. TANNER. A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA UNTIL 2 AM CDT. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. JE
Special weather statement, Apr 3, 11:06 PM CDT, 40 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 1106 PM CDT TUE APR 3 2007 ALZ007-040430- MORGAN- 1106 PM CDT TUE APR 3 2007 ...SIGNIFICANT WEATHER ALERT FOR MORGAN COUNTY UNTIL 1130 PM CDT... AT 1106 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM TRIANA TO 6 MILES SOUTH OF TRINITY...MOVING EAST AT 35 MPH. ONE HALF INCH DIAMETER HAIL...WINDS UP TO 50 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THESE STORMS. * LOCATIONS IN OR NEAR THE PATH INCLUDE... DECATUR. NEEL. PRICEVILLE. MASSEY. HARTSELLE. FLORETTE. A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. JE
Special weather statement, Apr 3, 11:40 PM CDT, 6 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 3, 9:48 PM CDT | Severe Thunderstorm Warning | HUN | Lauderdale | 42 min |
| Apr 3, 10:34 PM CDT | Tornado Warning | HUN | Madison | 26 min |
| Apr 3, 10:42 PM CDT | Severe Thunderstorm Warning | HUN | Colbert, Franklin, Lawrence | 48 min |
| Apr 3, 10:56 PM CDT | Severe Thunderstorm Warning | HUN | Limestone | 21 min |
| Apr 3, 10:58 PM CDT | Severe Thunderstorm Warning | HUN | Jackson, Madison | 47 min |
| Apr 3, 11:14 PM CDT | Tornado Warning | HUN | Jackson | 24 min |
| Apr 3, 11:29 PM CDT | Severe Thunderstorm Warning | HUN | Franklin, Lawrence | 31 min |
| Apr 3, 11:38 PM CDT | Severe Thunderstorm Warning | HUN | Cullman | 37 min |
| Apr 3, 11:43 PM CDT | Severe Thunderstorm Warning | HUN | DeKalb | 32 min |
| Apr 4, 12:16 AM CDT | Severe Thunderstorm Warning | HUN | Cullman | 14 min |
| Apr 3, 10:05 PM CDT | Severe Thunderstorm Warning | HUN | Lincoln, Moore | 40 min |
| Apr 3, 10:21 PM CDT | Severe Thunderstorm Warning | HUN | Franklin | 39 min |
| Apr 3, 10:43 PM CDT | Severe Thunderstorm Warning | HUN | Lincoln | 20 min |
| Apr 3, 11:00 PM CDT | Severe Thunderstorm Warning | HUN | Franklin | 19 min |
| Apr 4, 2:34 PM CDT | Freeze Warning | HUN | Franklin, Lincoln, Moore | 17 hr |
Nearby
Severe Thunderstorm Warnings in Alabama, 2007Every severe thunderstorm warning in 2007
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.