Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 28, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Mar 27, 2021, 5:39 PM CDT for Lamar County, Alabama. It was in force for 36 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
- Mar 27, 2021, 5:39 PM CDT (22:39 UTC)
- Expired
- Mar 27, 2021, 6:15 PM CDT
- In force
- 36 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Lamar County, AL
The radar
The Columbus AFB radar (KGWX), 40 km from the middle of the area, began a volume at 22:40 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 |
|---|---|---|---|
| Mar 27, 6:08 PM CDT | HAIL 1 | Kennedy, AL | HAIL UP TO THE SIZE OF QUARTERS IN THE TOWN OF KENNEDY. |
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, 10.7 hours before the alert went out and 129 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
- 1085 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 610 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 164 m²/s²
- 0-3 km storm-relative helicity
- 219 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.2
The text
As transmitted.
454
WUUS54 KBMX 272239
SVRBMX
ALC075-272315-
/O.NEW.KBMX.SV.W.0028.210327T2239Z-210327T2315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
539 PM CDT Sat Mar 27 2021
The National Weather Service in Birmingham has issued a
* Severe Thunderstorm Warning for...
Southern Lamar County in west central Alabama...
* Until 615 PM CDT.
* At 539 PM CDT, a severe thunderstorm was located near Millport,
moving northeast at 55 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Millport, Kennedy, Cody and Melborne.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3370 8795 3353 8795 3354 8827 3355 8826
TIME...MOT...LOC 2239Z 242DEG 46KT 3351 8813
HAIL...1.00IN
WIND...60MPH
$$1 follow-up statement
688
WWUS54 KBMX 272257
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
557 PM CDT Sat Mar 27 2021
ALC075-272315-
/O.CON.KBMX.SV.W.0028.000000T0000Z-210327T2315Z/
Lamar AL-
557 PM CDT Sat Mar 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR SOUTHEASTERN LAMAR COUNTY...
At 556 PM CDT, a severe thunderstorm was located near Kennedy, or
near Millport, moving northeast at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Millport and Kennedy.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3366 8795 3353 8795 3354 8812 3359 8807
TIME...MOT...LOC 2256Z 244DEG 36KT 3353 8802
HAIL...1.00IN
WIND...60MPH
$$The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 3:51 PM CDT | Special Weather Statement | BMX | Walker | 24 min |
| Mar 27, 4:10 PM CDT | Special Weather Statement | BMX | Jefferson | 50 min |
| Mar 27, 4:25 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson, Walker | 50 min |
| Mar 27, 4:37 PM CDT | Special Weather Statement | BMX | Lamar | 53 min |
| Mar 27, 5:06 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 39 min |
| Mar 27, 5:10 PM CDT | Severe Thunderstorm Warning | BMX | Pickens | 65 min |
| Mar 27, 5:44 PM CDT | Special Weather Statement | BMX | St. Clair | 61 min |
| Mar 27, 5:59 PM CDT | Severe Thunderstorm Warning | BMX | Fayette, Pickens | 46 min |
| Mar 27, 6:06 PM CDT | Special Weather Statement | BMX | Jefferson | 24 min |
| Mar 27, 6:40 PM CDT | Special Weather Statement | BMX | Etowah | 65 min |
| Mar 27, 6:46 PM CDT | Special Weather Statement | BMX | Fayette | 29 min |
| Mar 27, 6:56 PM CDT | Special Weather Statement | BMX | Walker | 64 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.