Alert archive / Alabama / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 25, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at Mar 1, 2017, 3:05 PM CST for Cullman 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
- Mar 1, 2017, 3:05 PM CST (21:05 UTC)
- Expired
- Mar 1, 2017, 3:30 PM CST
- In force
- 25 min
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Cullman County, AL
The radar
The Birmingham radar (KBMX), 107 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 |
|---|---|---|---|
| Mar 1, 11:48 AM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 9.1 hours before the alert went out and 106 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
- 246 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 549 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 290 m²/s²
- 0-3 km storm-relative helicity
- 372 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.3
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 Mar 1, 2:53 PM CST, 12 minutes earlier.
Area forecast discussion, Mar 1, 2:53 PM CST, 12 minutes before
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</html>Hazardous weather outlook, Mar 1, 2:57 PM CST, 8 minutes before
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Local storm report, Mar 1, 2:31 PM CST, 34 minutes before
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</html>Local storm report, Mar 1, 2:42 PM CST, 23 minutes before
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</html>Local storm report, Mar 1, 3:00 PM CST, 5 minutes before
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</html>Local storm report, Mar 1, 3:05 PM CST, 0 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 |
|---|---|---|---|---|
| Mar 1, 10:28 AM CST | Special Weather Statement | HUN | Lauderdale | 32 min |
| Mar 1, 10:58 AM CST | Severe Thunderstorm Warning | HUN | Lauderdale | 32 min |
| Mar 1, 11:31 AM CST | Special Weather Statement | HUN | Colbert, Lauderdale | 29 min |
| Mar 1, 11:44 AM CST | Severe Thunderstorm Warning | HUN | Lauderdale, Limestone | 31 min |
| Mar 1, 11:58 AM CST | Severe Thunderstorm Warning | HUN | Colbert, Lauderdale, Lawrence, Limestone | 32 min |
| Mar 1, 12:10 PM CST | Tornado Warning | HUN | Lauderdale, Limestone | 35 min |
| Mar 1, 12:32 PM CST | Severe Thunderstorm Warning | HUN | Colbert, Lawrence | 28 min |
| Mar 1, 12:38 PM CST | Special Weather Statement | HUN | Limestone | 37 min |
| Mar 1, 12:44 PM CST | Severe Thunderstorm Warning | HUN | Limestone, Madison | 31 min |
| Mar 1, 12:53 PM CST | Severe Thunderstorm Warning | HUN | Lawrence, Limestone, Morgan | 37 min |
| Mar 1, 1:10 PM CST | Severe Thunderstorm Warning | HUN | Jackson, Madison | 35 min |
| Mar 1, 1:19 PM CST | Severe Thunderstorm Warning | HUN | Madison | 26 min |
| Mar 1, 1:19 PM CST | Severe Thunderstorm Warning | HUN | Franklin, Lawrence | 26 min |
| Mar 1, 1:39 PM CST | Severe Thunderstorm Warning | HUN | Cullman, Morgan | 36 min |
| Mar 1, 1:43 PM CST | Severe Thunderstorm Warning | HUN | Jackson | 32 min |
| Mar 1, 2:10 PM CST | Severe Thunderstorm Warning | HUN | Marshall, Morgan | 35 min |
| Mar 1, 2:15 PM CST | Areal Flood Warning | HUN | Morgan | 2 hr |
| Mar 1, 2:19 PM CST | Severe Thunderstorm Warning | HUN | DeKalb, Jackson | 26 min |
| Mar 1, 2:36 PM CST | Special Weather Statement | HUN | Cullman | 24 min |
| Mar 1, 2:40 PM CST | Severe Thunderstorm Warning | HUN | DeKalb, Jackson, Marshall | 50 min |
| Mar 1, 2:54 PM CST | Severe Thunderstorm Warning | HUN | Cullman, Marshall | 36 min |
| Mar 1, 11:49 AM CST | Special Weather Statement | HUN | Lincoln | 26 min |
| Mar 1, 12:00 PM CST | Severe Thunderstorm Warning | HUN | Franklin, Lincoln, Moore | 30 min |
| Mar 1, 12:27 PM CST | Special Weather Statement | HUN | Lincoln | 33 min |
| Mar 1, 12:30 PM CST | Special Weather Statement | HUN | Franklin | 30 min |
| Mar 1, 12:52 PM CST | Severe Thunderstorm Warning | HUN | Franklin, Moore | 23 min |
| Mar 1, 1:41 PM CST | Severe Thunderstorm Warning | HUN | Franklin | 19 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2017Every severe thunderstorm warning in 2017
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.