Alert archive / Alabama / Tornado Warnings in 2021
Tornado Warning 9, NWS Huntsville, AL
NWS Huntsville, AL issued this tornado warning at Aug 21, 2021, 6:24 PM CDT for Colbert County, Alabama. It was in force for 23 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
- Aug 21, 2021, 6:24 PM CDT (23:24 UTC)
- Expired
- Aug 21, 2021, 6:47 PM CDT
- In force
- 23 min
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Colbert County, AL
The radar
The Columbus AFB radar (KGWX), 94 km from the middle of the area, began a volume at 23:25 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
Little Rock, AR (KLZK), launched 12:00Z, 11.4 hours before the alert went out and 171 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
- 1244 J/kg
- Mixed-layer CIN
- -93 J/kg
- Mixed-layer LCL
- 1032 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
185
WFUS54 KHUN 212324
TORHUN
ALC033-220000-
/O.NEW.KHUN.TO.W.0009.210821T2324Z-210822T0000Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Huntsville AL
624 PM CDT Sat Aug 21 2021
The National Weather Service in Huntsville Alabama has issued a
* Tornado Warning for...
Southwestern Colbert County in northwestern Alabama...
* Until 700 PM CDT.
* At 624 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Iuka, moving southeast at 20 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This tornadic thunderstorm will remain over mainly rural areas of
southwestern Colbert County, including the following locations...
Malone, Mynot, Mt Hester, Margerum, Maud and Allsboro.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3472 8812 3485 8810 3486 8808 3467 8789
3459 8813 3460 8814
TIME...MOT...LOC 2324Z 326DEG 17KT 3477 8814
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
JMS1 follow-up statement
011
WWUS54 KHUN 212347
SVSHUN
Severe Weather Statement
National Weather Service Huntsville AL
647 PM CDT Sat Aug 21 2021
ALC033-212356-
/O.CAN.KHUN.TO.W.0009.000000T0000Z-210822T0000Z/
Colbert AL-
647 PM CDT Sat Aug 21 2021
...THE TORNADO WARNING FOR SOUTHWESTERN COLBERT COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled. However gusty winds and
heavy rain are still possible with this thunderstorm.
Remember, a Severe Thunderstorm Warning still remains in effect for
Colbert County.
LAT...LON 3472 8812 3485 8810 3486 8808 3467 8789
3459 8813 3460 8814
TIME...MOT...LOC 2341Z 326DEG 17KT 3468 8807
$$
JMSThe office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 11:38 AM CDT | Special Weather Statement | HUN | Limestone | 52 min |
| Aug 21, 12:19 PM CDT | Special Weather Statement | HUN | Lawrence, Limestone, Madison | 41 min |
| Aug 21, 12:43 PM CDT | Special Weather Statement | HUN | Franklin | 47 min |
| Aug 21, 1:04 PM CDT | Special Weather Statement | HUN | Lawrence, Madison, Morgan | 41 min |
| Aug 21, 1:52 PM CDT | Special Weather Statement | HUN | Cullman, Morgan | 38 min |
| Aug 21, 2:25 PM CDT | Special Weather Statement | HUN | Cullman | 50 min |
| Aug 21, 2:31 PM CDT | Special Weather Statement | HUN | Lawrence | 44 min |
| Aug 21, 3:09 PM CDT | Special Weather Statement | HUN | Cullman | 51 min |
| Aug 21, 3:15 PM CDT | Severe Thunderstorm Warning | HUN | Cullman | 30 min |
| Aug 21, 6:16 PM CDT | Severe Thunderstorm Warning | HUN | Colbert | 44 min |
| Aug 21, 6:58 PM CDT | Special Weather Statement | HUN | Franklin | 47 min |
Nearby
Tornado Warnings in Alabama, 2021Every tornado warning in 2021Tornadoes 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.