Alert archive / Alabama / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 19, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at Apr 25, 2003, 4:08 PM CDT for DeKalb County, Alabama. It was in force for 37 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 25, 2003, 4:08 PM CDT (21:08 UTC)
- Expired
- Apr 25, 2003, 4:45 PM CDT
- In force
- 37 min
- Issued by
- NWS Huntsville, AL
- Area
- Counties, with a storm outline in the text
County DeKalb County, AL
The radar
The Northeast Alabama radar (KHTX), 58 km from the middle of the area, began a volume at 21:08 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 25, 12:45 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 9.1 hours before the alert went out and 168 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 651 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 264 m²/s²
- 0-3 km storm-relative helicity
- 299 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 25, 4:00 PM CDT, 8 minutes earlier.
Area forecast discussion, Apr 25, 4:00 PM CDT, 8 minutes before
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</html>Hazardous weather outlook, Apr 25, 3:36 PM CDT, 32 minutes before
ALZ001>010-016-260230- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HUNTSVILLE AL 336 PM CDT FRI APR 25 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA. .DAY ONE...(TODAY AND TONIGHT)... A FEW STRONG THUNDERSTORMS WILL BE POSSIBLE DURING THE LATE AFTERNOON AND EARLY EVENING...MAINLY TO THE EAST OF I-65. ISOLATED TORNADOES ARE THE MAIN THREAT...BUT LARGE HAIL AND DAMAGING WINDS WILL ALSO BE POSSIBLE. .DAYS TWO THROUGH SEVEN...(SATURDAY THROUGH THURSDAY)... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. DRIER WEATHER WILL RETURN TO THE TENNESSEE VALLEY OVER THE WEEKEND. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS NOT EXPECTED TONIGHT. SCHAUB
In the hours before
Special weather statement, Apr 25, 1:03 PM CDT, 3 hours 5 minutes before
ALZ009-010-251835- SIGNIFICANT WEATHER ALERT NATIONAL WEATHER SERVICE HUNTSVILLE AL 103 PM CDT FRI APR 25 2003 AN AREA OF STRONG THUNDERSTORMS WILL CONTINUE TO MOVE NORTHEAST THROUGH EASTERN JACKSON AND NORTHEAST DE KALB COUNTIES THROUGH 130 PM. AT 1 PM CDT...THE STORMS EXTENDED SOUTHEAST FROM NEAR STEVENSON....TO IDER. THE STORMS WILL LIKELY PRODUCE WIND GUSTS OF 30 TO 40 MPH...SMALL HAIL...OCCASIONAL CLOUD TO GROUND LIGHTNING AND VERY HEAVY RAIN. RAINFALL AMOUNTS WILL GENERALLY BE AROUND A QUARTER OF AN INCH. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION SERVICE PROVIDER FOR THE LATEST WEATHER INFORMATION. A TORNADO WATCH IS IN EFFECT FOR ALL OF NORTH ALABAMA UNTIL 6 PM CDT. TROUTMAN
Special weather statement, Apr 25, 3:06 PM CDT, 1 hour 2 minutes before
ALZ001>003-252030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 306 PM CDT FRI APR 25 2003 ...THE TORNADO WATCH HAS BEEN CANCELLED FOR LAUDERDALE... COLBERT AND FRANKLIN COUNTIES... THE THREAT FOR SEVERE WEATHER IN THESE COUNTIES HAS DIMINISHED. TROUTMAN
The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 3:52 PM CDT | Severe Thunderstorm Warning | HUN | Marshall | 23 min |
| Apr 25, 4:14 PM CDT | Severe Thunderstorm Warning | HUN | Marshall | 16 min |
| Apr 25, 4:41 PM CDT | Severe Thunderstorm Warning | HUN | DeKalb | 34 min |
| Apr 25, 4:51 PM CDT | Tornado Warning | HUN | DeKalb | 24 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2003Every severe thunderstorm warning in 2003
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.