Alert archive / Alabama / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 49, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at Apr 18, 2019, 7:55 PM CDT for Cullman County, Morgan County, Alabama. It was in force for 52 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 18, 2019, 7:55 PM CDT (00:55 UTC)
- Expired
- Apr 18, 2019, 8:47 PM CDT
- In force
- 52 min
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cullman County, AL, Morgan County, AL
The radar
The Northeast Alabama radar (KHTX), 100 km from the middle of the area, began a volume at 00:54 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 18, 7:22 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 0.9 hours before the alert went out and 124 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
- 12 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 1464 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 290 m²/s²
- 0-3 km storm-relative helicity
- 389 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 18, 7:12 PM CDT, 43 minutes earlier.
Area forecast discussion, Apr 18, 7:12 PM CDT, 43 minutes before
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</html>Hazardous weather outlook, Apr 18, 7:45 PM CDT, 10 minutes before
Hazardous Weather Outlook National Weather Service Huntsville AL 745 PM CDT Thu Apr 18 2019 ALZ001>010-016-TNZ076-096-097-191100- Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan- Marshall-Jackson-DeKalb-Cullman-Moore-Lincoln-Franklin TN- 745 PM CDT Thu Apr 18 2019 This Hazardous Weather Outlook is for north Alabama and portions of southern middle Tennessee. .DAY ONE...Tonight... A broken line or cluster of strong to severe thunderstorms will move northeast across the outlook area this evening. Damaging straight line winds will be the primary threat, with a lower end threat for large hail and a few tornadoes. Locally heavy rainfall may also result in minor flooding of roads and low lying areas. The threat for severe weather will diminish from west to east after midnight. .DAYS TWO THROUGH SEVEN...Friday through Wednesday... No hazardous weather is expected at this time. .SPOTTER CALL TO ACTION STATEMENT... Activation of storm spotters and emergency management personnel will be needed this evening. In addition, timely reports of any storm damage are greatly appreciated.
The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 7:34 PM CDT | Severe Thunderstorm Warning | HUN | Cullman, Lawrence, Morgan | 26 min |
| Apr 18, 7:50 PM CDT | Severe Thunderstorm Warning | HUN | Lawrence | 32 min |
| Apr 18, 8:28 PM CDT | Special Weather Statement | HUN | Limestone | 47 min |
| Apr 18, 8:39 PM CDT | Special Weather Statement | HUN | DeKalb | 51 min |
| Apr 18, 8:42 PM CDT | Severe Thunderstorm Warning | HUN | Limestone, Madison | 33 min |
| Apr 18, 8:54 PM CDT | Special Weather Statement | HUN | Madison | 51 min |
| Apr 18, 10:12 PM CDT | Special Weather Statement | HUN | Moore | 33 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2019Every severe thunderstorm warning in 2019
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.