Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 164, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jul 15, 2021, 4:40 PM CDT for Covington County, Alabama. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 15, 2021, 4:40 PM CDT (21:40 UTC)
- Expired
- Jul 15, 2021, 5:30 PM CDT
- In force
- 50 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
County Covington County, AL
The radar
The Eglin Afb radar (KEVX), 86 km from the middle of the area, began a volume at 21:44 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 nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.7 hours before the alert went out and 230 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
- 977 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 911 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
554
WUUS54 KMOB 152140
SVRMOB
ALC039-152230-
/O.NEW.KMOB.SV.W.0164.210715T2140Z-210715T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
440 PM CDT Thu Jul 15 2021
The National Weather Service in Mobile has issued a
* Severe Thunderstorm Warning for...
Southern Covington County in south central Alabama...
* Until 530 PM CDT.
* At 440 PM CDT, a severe thunderstorm was located 12 miles northwest
of Laurel Hill, or 18 miles west of Florala, moving northeast at 20
mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Andalusia and River Falls.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3099 8655 3099 8659 3105 8670 3107 8670
3141 8658 3127 8628
TIME...MOT...LOC 2140Z 208DEG 18KT 3107 8663
HAIL...0.88IN
WIND...60MPH
$$2 follow-up statements
095
WWUS54 KMOB 152203
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
503 PM CDT Thu Jul 15 2021
ALC039-152230-
/O.CON.KMOB.SV.W.0164.000000T0000Z-210715T2230Z/
Covington AL-
503 PM CDT Thu Jul 15 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR SOUTHERN COVINGTON COUNTY...
At 503 PM CDT, a severe thunderstorm was located 8 miles northwest
of Lockhart, or 9 miles northwest of Florala, moving northwest at 5
mph. This is a second developing severe thunderstorm moving into the
eastern edge of the warned area.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Andalusia and River Falls.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3099 8655 3099 8659 3105 8670 3107 8670
3141 8658 3127 8628
TIME...MOT...LOC 2203Z 128DEG 6KT 3111 8643
HAIL...0.88IN
WIND...60MPH
$$309
WWUS54 KMOB 152227
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
527 PM CDT Thu Jul 15 2021
ALC039-152237-
/O.EXP.KMOB.SV.W.0164.000000T0000Z-210715T2230Z/
Covington AL-
527 PM CDT Thu Jul 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN COVINGTON COUNTY WILL
EXPIRE AT 530 PM CDT...
The storm which prompted the warning has weakened below severe
limits. Therefore, the warning will be allowed to expire.
LAT...LON 3099 8655 3099 8659 3105 8670 3107 8670
3141 8658 3127 8628
TIME...MOT...LOC 2227Z 208DEG 18KT 3120 8637
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 4:33 PM CDT | Special Weather Statement | MOB | Covington | 42 min |
| Jul 15, 4:48 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh, Covington, Escambia | 42 min |
| Jul 15, 5:11 PM CDT | Special Weather Statement | MOB | Covington | 49 min |
| Jul 15, 5:41 PM CDT | Special Weather Statement | MOB | Butler, Conecuh, Covington, Crenshaw | 94 min |
| Jul 15, 6:42 PM CDT | Special Weather Statement | MOB | Clarke, Conecuh, Monroe | 93 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.