Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 111, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at May 6, 2021, 5:46 PM CDT for Lamar County, Marion County, Winston County, Alabama. It was in force for 59 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 6, 2021, 5:46 PM CDT (22:46 UTC)
- Expired
- May 6, 2021, 6:45 PM CDT
- In force
- 59 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Lamar County, AL, Marion County, AL, Winston County, AL
The radar
The Columbus AFB radar (KGWX), 57 km from the middle of the area, began a volume at 22:49 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 6, 6:18 PM CDT | TSTM WND DMG | Hamilton, AL | TREES AND LINES DOWN IN AND AROUND HAMILTON. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 10.8 hours before the alert went out and 134 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
- 1285 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- -107 m²/s²
- 0-3 km storm-relative helicity
- -60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
795
WUUS54 KBMX 062246
SVRBMX
ALC075-093-133-062345-
/O.NEW.KBMX.SV.W.0111.210506T2246Z-210506T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
546 PM CDT Thu May 6 2021
The National Weather Service in Birmingham has issued a
* Severe Thunderstorm Warning for...
Marion County in northwestern Alabama...
Winston County in northwestern Alabama...
Northern Lamar County in west central Alabama...
* Until 645 PM CDT.
* At 546 PM CDT, severe thunderstorms were located along a line
extending from near Belgreen to near Red Bay to near Mantachie,
moving southeast at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Hamilton, Winfield, Haleyville, Sulligent, Lynn, Guin, Hackleburg,
Double Springs, Brilliant, Glen Allen, Detroit, Beaverton, Gu-
Win, Houston Recreational Area, Brushy Lake, Ashridge, Brinn, Lake
Buttahatchee, Moreland and Weston.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3432 8817 3430 8711 3428 8711 3400 8752
3400 8764 3391 8765 3392 8795 3388 8795
3385 8823
TIME...MOT...LOC 2246Z 324DEG 34KT 3453 8786 3439 8815 3431 8855
HAIL...<.75IN
WIND...60MPH
$$
61The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 5:37 PM CDT | Special Weather Statement | BMX | Marion | 53 min |
| May 6, 6:27 PM CDT | Severe Thunderstorm Warning | BMX | Fayette, Lamar, Walker, Winston | 63 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.