Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 83, NWS Huntsville, AL
NWS Huntsville, AL issued this severe thunderstorm warning at Aug 21, 2021, 7:07 PM CDT for Colbert County, Franklin 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, 7:07 PM CDT (00:07 UTC)
- Expired
- Aug 21, 2021, 7:30 PM CDT
- In force
- 23 min
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Colbert County, AL, Franklin County, AL
The radar
The Columbus AFB radar (KGWX), 82 km from the middle of the area, began a volume at 00:08 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 00:00Z, 0.1 hours before the alert went out and 181 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
- 2308 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 1181 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
947
WUUS54 KHUN 220007
SVRHUN
ALC033-059-220030-
/O.NEW.KHUN.SV.W.0083.210822T0007Z-210822T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Huntsville AL
707 PM CDT Sat Aug 21 2021
The National Weather Service in Huntsville Alabama has issued a
* Severe Thunderstorm Warning for...
Southwestern Colbert County in northwestern Alabama...
Central Franklin County in northwestern Alabama...
* Until 730 PM CDT.
* At 706 PM CDT, a severe thunderstorm was located 7 miles south of
Cherokee, or 11 miles east of Tishomingo State Park, moving
southeast at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Russellville, Cherokee, Belgreen, Hodges, Mt Hester, Cedar Creek
Reservoir, Srygley Church, Maud, Rockwood and Pleasant Site.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3464 8813 3466 8813 3476 8796 3447 8766
3432 8793
TIME...MOT...LOC 0006Z 326DEG 16KT 3465 8800
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
JMS1 follow-up statement
938 WWUS54 KHUN 220021 SVSHUN Severe Weather Statement National Weather Service Huntsville AL 721 PM CDT Sat Aug 21 2021 ALC033-059-220030- /O.CON.KHUN.SV.W.0083.000000T0000Z-210822T0030Z/ Colbert AL-Franklin AL- 721 PM CDT Sat Aug 21 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR SOUTHWESTERN COLBERT AND CENTRAL FRANKLIN COUNTIES... At 721 PM CDT, a severe thunderstorm was located 9 miles northwest of Belgreen, or 13 miles east of Tishomingo State Park, moving southeast at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Russellville, Cherokee, Belgreen, Hodges, Mynot, Cedar Creek Reservoir, Srygley Church, Dempsey, Crooked Oak and Isbell. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Continuous cloud to ground lightning is occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. && LAT...LON 3468 8809 3475 8797 3447 8766 3432 8793 TIME...MOT...LOC 0021Z 326DEG 16KT 3459 8795 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ JMS
The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 7:42 PM CDT | Special Weather Statement | HUN | Franklin | 33 min |
| Aug 21, 10:10 PM CDT | Areal Flood Warning | HUN | Jackson | 3 hr |
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.