Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 95, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at Dec 6, 2021, 9:34 AM CST for Cullman County, Marshall County, Morgan County, Alabama. It was in force for 26 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
- Dec 6, 2021, 9:34 AM CST (15:34 UTC)
- Expired
- Dec 6, 2021, 10:00 AM CST
- In force
- 26 min
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cullman County, AL, Marshall County, AL, Morgan County, AL
The radar
The Northeast Alabama radar (KHTX), 78 km from the middle of the area, began a volume at 15:34 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
Birmingham, AL (KBMX), launched 12:00Z, 3.6 hours before the alert went out and 130 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
- 219 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 484 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 223 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.3
The text
As transmitted.
335
WUUS54 KHUN 061534
SVRHUN
ALC043-095-103-061600-
/O.NEW.KHUN.SV.W.0095.211206T1534Z-211206T1600Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Huntsville AL
934 AM CST Mon Dec 6 2021
The National Weather Service in Huntsville Alabama has issued a
* Severe Thunderstorm Warning for...
Marshall County in northeastern Alabama...
Northeastern Cullman County in north central Alabama...
Southeastern Morgan County in north central Alabama...
* Until 1000 AM CST.
* At 933 AM CST, severe thunderstorms were located along a line
extending from near Morgan City to 11 miles west of Arab to 6 miles
northeast of Cullman, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Albertville, Cullman, Guntersville, Arab, Holly Pond, Morgan City,
Vinemont, Douglas, Baileyton and Eva.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3422 8691 3434 8676 3453 8669 3451 8654
3449 8652 3448 8647 3448 8643 3450 8640
3447 8613 3421 8622 3412 8633 3426 8644
3425 8652 3420 8655 3419 8655 3411 8661
TIME...MOT...LOC 1533Z 286DEG 31KT 3445 8665 3433 8669 3426 8678
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
KTW1 follow-up statement
874
WWUS54 KHUN 061553
SVSHUN
Severe Weather Statement
National Weather Service Huntsville AL
953 AM CST Mon Dec 6 2021
ALC103-061602-
/O.CAN.KHUN.SV.W.0095.000000T0000Z-211206T1600Z/
Morgan AL-
953 AM CST Mon Dec 6 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MORGAN COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 3415 8672 3431 8663 3431 8658 3437 8658
3448 8649 3448 8643 3450 8639 3447 8613
3421 8622 3412 8633 3426 8644 3425 8652
3420 8655 3419 8655 3411 8661
TIME...MOT...LOC 1552Z 286DEG 31KT 3441 8646 3429 8651 3422 8660
$$
ALC043-095-061600-
/O.CON.KHUN.SV.W.0095.000000T0000Z-211206T1600Z/
Marshall AL-Cullman AL-
953 AM CST Mon Dec 6 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM CST
FOR MARSHALL AND NORTHEASTERN CULLMAN COUNTIES...
At 952 AM CST, severe thunderstorms were located along a line
extending from 7 miles southeast of Morgan City to near Arab to near
Holly Pond, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Albertville, Guntersville, Arab, Holly Pond, Douglas, Baileyton,
Union Grove, High Point, Horton and Columbus City.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3415 8672 3431 8663 3431 8658 3437 8658
3448 8649 3448 8643 3450 8639 3447 8613
3421 8622 3412 8633 3426 8644 3425 8652
3420 8655 3419 8655 3411 8661
TIME...MOT...LOC 1552Z 286DEG 31KT 3441 8646 3429 8651 3422 8660
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
KTWThe office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 6, 6:01 AM CST | Severe Thunderstorm Warning | HUN | Colbert, Franklin | 29 min |
| Dec 6, 6:31 AM CST | Special Weather Statement | HUN | Colbert, Franklin, Lawrence | 29 min |
| Dec 6, 6:59 AM CST | Special Weather Statement | HUN | Franklin, Lawrence | 31 min |
| Dec 6, 7:02 AM CST | Severe Thunderstorm Warning | HUN | Colbert, Lauderdale, Limestone, Madison | 28 min |
| Dec 6, 7:05 AM CST | Severe Thunderstorm Warning | HUN | Franklin, Lawrence | 40 min |
| Dec 6, 8:07 AM CST | Special Weather Statement | HUN | Madison | 23 min |
| Dec 6, 8:34 AM CST | Special Weather Statement | HUN | Madison | 41 min |
| Dec 6, 8:50 AM CST | Special Weather Statement | HUN | Cullman, Morgan | 40 min |
| Dec 6, 9:06 AM CST | Severe Thunderstorm Warning | HUN | Cullman, Morgan | 24 min |
| Dec 6, 9:11 AM CST | Special Weather Statement | HUN | Madison | 34 min |
| Dec 6, 9:16 AM CST | Tornado Warning | HUN | Morgan | 14 min |
| Dec 6, 9:57 AM CST | Tornado Warning | HUN | Cullman, Marshall | 18 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.