Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 11, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at Mar 27, 2021, 3:52 AM CDT for Jackson County, Alabama. It was in force for 38 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 27, 2021, 3:52 AM CDT (08:52 UTC)
- Expired
- Mar 27, 2021, 4:30 AM CDT
- In force
- 38 min
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Jackson County, AL
The radar
The Northeast Alabama radar (KHTX), 37 km from the middle of the area, began a volume at 08:55 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
Nashville Metro, TN (KBNA), launched 00:00Z, 8.9 hours before the alert went out and 164 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1974 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
808
WUUS54 KHUN 270852
SVRHUN
ALC071-270930-
/O.NEW.KHUN.SV.W.0011.210327T0852Z-210327T0930Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Huntsville AL
352 AM CDT Sat Mar 27 2021
The National Weather Service in Huntsville Alabama has issued a
* Severe Thunderstorm Warning for...
Northeastern Jackson County in northeastern Alabama...
* Until 430 AM CDT.
* At 352 AM CDT, a severe thunderstorm was located near Stevenson, or
12 miles northeast of Scottsboro, moving northeast at 40 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* Locations impacted include...
Bridgeport, Stevenson, Fabius, Higdon, Long Island and Russell Cave
National Monument.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3484 8561 3483 8563 3479 8564 3476 8565
3472 8580 3488 8596 3499 8580 3499 8567
3496 8560 3486 8559
TIME...MOT...LOC 0852Z 241DEG 37KT 3478 8585
HAIL...1.00IN
WIND...<50MPH
$$
GH2 follow-up statements
307
WWUS54 KHUN 270911
SVSHUN
Severe Weather Statement
National Weather Service Huntsville AL
411 AM CDT Sat Mar 27 2021
ALC071-270930-
/O.CON.KHUN.SV.W.0011.000000T0000Z-210327T0930Z/
Jackson AL-
411 AM CDT Sat Mar 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM CDT
FOR NORTHEASTERN JACKSON COUNTY...
At 411 AM CDT, a severe thunderstorm was located near Bridgeport,
moving northeast at 45 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
Locations impacted include...
Bridgeport, Stevenson, Fabius, Higdon and Long Island.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3484 8561 3483 8563 3480 8566 3478 8575
3486 8584 3499 8567 3496 8560 3486 8559
TIME...MOT...LOC 0911Z 241DEG 37KT 3488 8564
HAIL...1.00IN
WIND...<50MPH
$$
GH125
WWUS54 KHUN 270925
SVSHUN
Severe Weather Statement
National Weather Service Huntsville AL
425 AM CDT Sat Mar 27 2021
ALC071-270934-
/O.EXP.KHUN.SV.W.0011.000000T0000Z-210327T0930Z/
Jackson AL-
425 AM CDT Sat Mar 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN JACKSON COUNTY
WILL EXPIRE AT 430 AM CDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.
LAT...LON 3484 8561 3483 8563 3480 8566 3478 8575
3486 8584 3499 8567 3496 8560 3486 8559
TIME...MOT...LOC 0924Z 241DEG 37KT 3494 8551
$$
GHThe office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 1:28 AM CDT | Flash Flood Watch | HUN | Colbert, Franklin, Jackson, Lauderdale, Lawrence, Limestone and 2 more | 31 hr |
| Mar 27, 2:47 AM CDT | Special Weather Statement | HUN | Colbert | 28 min |
| Mar 27, 3:05 AM CDT | Special Weather Statement | HUN | Jackson | 40 min |
| Mar 27, 3:14 AM CDT | Special Weather Statement | HUN | Lauderdale | 46 min |
| Mar 27, 3:40 AM CDT | Special Weather Statement | HUN | Jackson | 35 min |
| Mar 27, 10:02 AM CDT | Special Weather Statement | HUN | Lauderdale | 28 min |
| Mar 27, 10:57 AM CDT | Special Weather Statement | HUN | Lauderdale | 18 min |
| Mar 27, 4:22 PM CDT | Special Weather Statement | HUN | Lawrence | 23 min |
| Mar 27, 4:28 PM CDT | Severe Thunderstorm Warning | HUN | Cullman | 47 min |
| Mar 27, 4:36 PM CDT | Severe Thunderstorm Warning | HUN | Lawrence | 24 min |
| Mar 27, 4:57 PM CDT | Severe Thunderstorm Warning | HUN | Lawrence, Morgan | 18 min |
| Mar 27, 5:14 PM CDT | Severe Thunderstorm Warning | HUN | Cullman, Madison, Marshall, Morgan | 46 min |
| Mar 27, 5:17 PM CDT | Special Weather Statement | HUN | Morgan | 28 min |
| Mar 27, 5:44 PM CDT | Special Weather Statement | HUN | Morgan | 46 min |
| Mar 27, 5:54 PM CDT | Severe Thunderstorm Warning | HUN | Jackson, Madison, Marshall | 36 min |
| Mar 27, 6:14 PM CDT | Special Weather Statement | HUN | Madison | 16 min |
| Mar 27, 6:24 PM CDT | Severe Thunderstorm Warning | HUN | Jackson | 31 min |
| Mar 27, 6:29 PM CDT | Severe Thunderstorm Warning | HUN | Madison | 16 min |
| Mar 27, 6:43 PM CDT | Severe Thunderstorm Warning | HUN | Jackson, Madison | 17 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.