Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 85, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at Oct 6, 2021, 3:55 PM CDT for 4 counties in Alabama. It was in force for 50 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
- Oct 6, 2021, 3:55 PM CDT (20:55 UTC)
- Expired
- Oct 6, 2021, 4:45 PM CDT
- In force
- 50 min
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Cullman County, AL, Madison County, AL, Marshall County, AL, Morgan County, AL
The radar
The Northeast Alabama radar (KHTX), 76 km from the middle of the area, began a volume at 20:58 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 |
|---|---|---|---|
| Oct 6, 3:57 PM CDT | TSTM WND DMG | Eva, AL | A FEW TREES WERE DOWNED IN THE EVA COMMUNITY REPORTED VIA SOCIAL MEDIA. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 6, 2:53 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 8.9 hours before the alert went out and 138 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
- 683 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 559 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
533
WUUS54 KHUN 062055
SVRHUN
ALC043-089-095-103-062145-
/O.NEW.KHUN.SV.W.0085.211006T2055Z-211006T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Huntsville AL
355 PM CDT Wed Oct 6 2021
The National Weather Service in Huntsville Alabama has issued a
* Severe Thunderstorm Warning for...
West central Marshall County in northeastern Alabama...
Southern Madison County in north central Alabama...
North central Cullman County in north central Alabama...
Southeastern Morgan County in north central Alabama...
* Until 445 PM CDT.
* At 354 PM CDT, a severe thunderstorm was located 10 miles west of
Arab, moving north at 35 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...
Southern Huntsville, Madison, Redstone Arsenal, Owens Cross Roads,
Triana, Marshall Space Flight Center, Morgan City, Baileyton, Eva
and Valhermoso Springs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for the warned
area. Tornadoes can develop quickly from severe thunderstorms.
Although a tornado is not immediately likely, if one is spotted, act
quickly and move to a place of safety inside a sturdy structure such
as a basement or small interior room.
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3420 8663 3431 8680 3472 8672 3462 8634
TIME...MOT...LOC 2054Z 192DEG 32KT 3432 8668
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
303 follow-up statements
125
WWUS54 KHUN 062102
SVSHUN
Severe Weather Statement
National Weather Service Huntsville AL
402 PM CDT Wed Oct 6 2021
ALC043-062111-
/O.CAN.KHUN.SV.W.0085.000000T0000Z-211006T2145Z/
Cullman AL-
402 PM CDT Wed Oct 6 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CULLMAN COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for north central
and northeastern Alabama...and Middle Tennessee.
LAT...LON 3431 8680 3472 8672 3462 8634 3430 8656
TIME...MOT...LOC 2101Z 192DEG 32KT 3439 8666
$$
ALC089-095-103-062145-
/O.CON.KHUN.SV.W.0085.000000T0000Z-211006T2145Z/
Marshall AL-Madison AL-Morgan AL-
402 PM CDT Wed Oct 6 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR WEST CENTRAL MARSHALL...SOUTHERN MADISON AND SOUTHEASTERN MORGAN
COUNTIES...
At 401 PM CDT, a severe thunderstorm was located 7 miles southwest of
Morgan City, or 10 miles northwest of Arab, moving north at 35 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...
Southern Huntsville, Madison, Redstone Arsenal, Owens Cross Roads,
Triana, Marshall Space Flight Center, Morgan City, Eva, Valhermoso
Springs and Hulaco.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for north central
and northeastern Alabama...and Middle Tennessee.
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3431 8680 3472 8672 3462 8634 3430 8656
TIME...MOT...LOC 2101Z 192DEG 32KT 3439 8666
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
30718
WWUS54 KHUN 062129
SVSHUN
Severe Weather Statement
National Weather Service Huntsville AL
429 PM CDT Wed Oct 6 2021
ALC089-095-103-062145-
/O.CON.KHUN.SV.W.0085.000000T0000Z-211006T2145Z/
Marshall AL-Madison AL-Morgan AL-
429 PM CDT Wed Oct 6 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR WEST CENTRAL MARSHALL...SOUTHERN MADISON AND EAST CENTRAL MORGAN
COUNTIES...
At 429 PM CDT, a severe thunderstorm was located near Redstone
Arsenal, moving north at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Southern Huntsville, Redstone Arsenal, Owens Cross Roads, Morgan
City, Laceys Spring, Farley, Whitesburg and Hampton Cove.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for north central
and northeastern Alabama...and Middle Tennessee.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3455 8672 3470 8664 3462 8634 3438 8651
TIME...MOT...LOC 2129Z 192DEG 32KT 3464 8660
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
30076
WWUS54 KHUN 062137
SVSHUN
Severe Weather Statement
National Weather Service Huntsville AL
437 PM CDT Wed Oct 6 2021
ALC089-095-103-062147-
/O.EXP.KHUN.SV.W.0085.000000T0000Z-211006T2145Z/
Marshall AL-Madison AL-Morgan AL-
437 PM CDT Wed Oct 6 2021
...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL MARSHALL...
SOUTHERN MADISON AND EAST CENTRAL MORGAN COUNTIES WILL EXPIRE AT 445
PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However heavy rain
is still possible with this thunderstorm.
A Tornado Watch remains in effect until 1000 PM CDT for north central
and northeastern Alabama...and Middle Tennessee.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Huntsville Alabama.
LAT...LON 3455 8672 3470 8664 3462 8634 3438 8651
TIME...MOT...LOC 2137Z 192DEG 32KT 3470 8658
$$
30The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 5, 9:56 PM CDT | Areal Flood Warning | HUN | Colbert, Lauderdale, Lawrence | 6 hr |
| Oct 5, 10:35 PM CDT | Special Weather Statement | HUN | Franklin | 55 min |
| Oct 6, 6:14 AM CDT | River Flood Warning | HUN | Lawrence | 40 hr |
| Oct 6, 7:41 AM CDT | Special Weather Statement | HUN | Marshall | 49 min |
| Oct 6, 2:11 PM CDT | Special Weather Statement | HUN | Cullman | 49 min |
| Oct 6, 4:07 PM CDT | Special Weather Statement | HUN | Jackson | 38 min |
| Oct 6, 4:35 PM CDT | Special Weather Statement | HUN | Cullman | 25 min |
| Oct 6, 4:37 PM CDT | River Flood Warning | HUN | Jackson, Madison, Marshall | 71 hr |
| Oct 6, 4:45 PM CDT | Special Weather Statement | HUN | Madison, Marshall | 45 min |
| Oct 6, 4:54 PM CDT | Severe Thunderstorm Warning | HUN | Jackson, Madison | 36 min |
| Oct 6, 5:14 PM CDT | Flash Flood Warning | HUN | Madison, Marshall | 8 hr |
| Oct 6, 6:12 PM CDT | Special Weather Statement | HUN | Colbert | 33 min |
| Oct 6, 6:25 PM CDT | Severe Thunderstorm Warning | HUN | Colbert, Lauderdale | 35 min |
| Oct 6, 6:54 PM CDT | Flash Flood Warning | HUN | Jackson | 6 hr |
| Oct 6, 6:58 PM CDT | Severe Thunderstorm Warning | HUN | Colbert, Lauderdale | 16 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.