Alert archive / Alabama / Tornado Warnings in 2021
Tornado Warning 2, NWS Huntsville, AL
NWS Huntsville, AL issued this tornado warning at Mar 17, 2021, 6:44 PM CDT for Cullman County, Alabama. It was in force for 31 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
- Mar 17, 2021, 6:44 PM CDT (23:44 UTC)
- Expired
- Mar 17, 2021, 7:15 PM CDT
- In force
- 31 min
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
County Cullman County, AL
The radar
The Birmingham radar (KBMX), 108 km from the middle of the area, began a volume at 23:44 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 17, 11:36 AM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 11.7 hours before the alert went out and 107 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
- 658 J/kg
- Mixed-layer CIN
- -112 J/kg
- Mixed-layer LCL
- 759 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 169 m²/s²
- 0-3 km storm-relative helicity
- 301 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted.
772
WFUS54 KHUN 172344
TORHUN
ALC043-180015-
/O.NEW.KHUN.TO.W.0002.210317T2344Z-210318T0015Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Huntsville AL
644 PM CDT Wed Mar 17 2021
The National Weather Service in Huntsville Alabama has issued a
* Tornado Warning for...
Northwestern Cullman County in north central Alabama...
* Until 715 PM CDT.
* At 643 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Good Hope, or 8 miles southwest of Cullman, moving
northeast at 35 mph.
HAZARD...Tornado and quarter size hail.
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.
* Locations impacted include...
Cullman, Good Hope, Dodge City, Baldwin, Vinemont, Phelan, Logan,
Crane Hill and Smith Lake.
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 3408 8708 3431 8684 3421 8665 3400 8698
TIME...MOT...LOC 2343Z 223DEG 32KT 3410 8695
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
70/DD2 follow-up statements
372
WWUS54 KHUN 180000
SVSHUN
Severe Weather Statement
National Weather Service Huntsville AL
700 PM CDT Wed Mar 17 2021
ALC043-180015-
/O.CON.KHUN.TO.W.0002.000000T0000Z-210318T0015Z/
Cullman AL-
700 PM CDT Wed Mar 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR NORTH
CENTRAL CULLMAN COUNTY...
At 700 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Cullman, moving northeast at 35 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Cullman, Good Hope, Baldwin, Vinemont and Phelan.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3417 8695 3431 8684 3421 8665 3410 8686
TIME...MOT...LOC 0000Z 223DEG 31KT 3421 8683
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
70/DD559
WWUS54 KHUN 180011
SVSHUN
Severe Weather Statement
National Weather Service Huntsville AL
711 PM CDT Wed Mar 17 2021
ALC043-180021-
/O.EXP.KHUN.TO.W.0002.000000T0000Z-210318T0015Z/
Cullman AL-
711 PM CDT Wed Mar 17 2021
...THE TORNADO WARNING FOR NORTH CENTRAL CULLMAN COUNTY WILL EXPIRE
AT 715 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
A Tornado Watch remains in effect until midnight CDT for north
central, northeastern and northwestern Alabama.
LAT...LON 3417 8695 3431 8684 3421 8665 3410 8686
TIME...MOT...LOC 0011Z 223DEG 32KT 3426 8677
$$
70/DDThe office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 1:24 AM CDT | Dense Fog Advisory | HUN | Cullman, DeKalb, Jackson, Marshall | 7 hr |
| Mar 17, 7:25 AM CDT | Special Weather Statement | HUN | Morgan | 50 min |
| Mar 17, 7:57 AM CDT | Special Weather Statement | HUN | Madison | 48 min |
| Mar 17, 7:59 AM CDT | Special Weather Statement | HUN | Colbert | 46 min |
| Mar 17, 9:52 AM CDT | Special Weather Statement | HUN | Jackson | 23 min |
| Mar 17, 3:40 PM CDT | Tornado Warning | HUN | Colbert, Franklin | 35 min |
| Mar 17, 4:07 PM CDT | Severe Thunderstorm Warning | HUN | Colbert, Franklin, Lauderdale | 26 min |
| Mar 17, 4:17 PM CDT | Flash Flood Watch | HUN | Colbert, Cullman, DeKalb, Franklin, Jackson, Lauderdale and 5 more | 8 hr |
| Mar 17, 4:44 PM CDT | Flash Flood Warning | HUN | Cullman, Morgan | 5 hr |
| Mar 17, 5:24 PM CDT | Areal Flood Warning | HUN | Colbert, Franklin, Lauderdale | 9 hr |
| Mar 17, 5:49 PM CDT | Areal Flood Warning | HUN | Cullman | 8 hr |
| Mar 17, 6:05 PM CDT | Severe Thunderstorm Warning | HUN | Marshall | 22 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.