Alert archive / Alabama / Special Weather Statements in 2021
Special Weather Statement, NWS Huntsville, AL
NWS Huntsville, AL issued this special weather statement at Oct 6, 2021, 9:02 PM CDT for Madison County, Alabama. It was in force for 43 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
- Oct 6, 2021, 9:02 PM CDT (02:02 UTC)
- Expired
- Oct 6, 2021, 9:45 PM CDT
- In force
- 43 min
- Issued by
- NWS Huntsville, AL
- Hail
- 0.25 in
- Wind
- 30
County Madison County, AL
The radar
The Northeast Alabama radar (KHTX), 42 km from the middle of the area, began a volume at 02:05 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
Birmingham, AL (KBMX), launched 00:00Z, 2.0 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
- 1415 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 923 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.8
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Huntsville, AL wrote its last area forecast discussion before this special weather statement went out at Oct 6, 8:57 PM CDT, 5 minutes earlier.
Area forecast discussion, Oct 6, 8:57 PM CDT, 5 minutes before
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</html>Hazardous weather outlook, Oct 6, 2:57 PM CDT, 6 hours 5 minutes before
Hazardous Weather Outlook National Weather Service Huntsville AL 257 PM CDT Wed Oct 6 2021 ALZ001>010-016-TNZ076-096-097-071100- Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan- Marshall-Jackson-DeKalb-Cullman-Moore-Lincoln-Franklin TN- 257 PM CDT Wed Oct 6 2021 This Hazardous Weather Outlook is for north Alabama and portions of southern middle Tennessee. .DAY ONE...Tonight... Heavy rain and thunderstorms remain possible well into the evening hours, as an upper disturbance remains in place west of the area. A few of these storms may be strong to severe, with the potential for damaging wind gusts, small hail and brief tornadoes, mainly for locations along and east of the Interstate 65 corridor. The threat for localized flash flooding also remains in place and a Flash Flood Watch remains in effect through 1 AM CDT tonight. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday... Lingering thunderstorms remain possible for areas along and east of Interstate 65 Thursday before the thunderstorm threat diminishes Thursday evening. .SPOTTER CALL TO ACTION STATEMENT... Activation of storm spotters and emergency management personnel is possible late this afternoon and this evening.
In the hours before
Local storm report, Oct 6, 8:06 PM CDT, 56 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
806 PM CDT WED OCT 6 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0735 PM FLASH FLOOD 1 ESE OWENS CROSSROADS 34.57N 86.44W
10/06/2021 MADISON AL PUBLIC
FLOODING IN THE BRISTOL CREEK SUBDIVISION IN
OWENS CROSSROADS.
&&
MASpecial weather statement, Oct 6, 8:13 PM CDT, 49 minutes before
Special Weather Statement
National Weather Service Huntsville AL
813 PM CDT Wed Oct 6 2021
ALZ006>008-070200-
Marshall AL-Madison AL-Morgan AL-
813 PM CDT Wed Oct 6 2021
...A strong thunderstorm will impact portions of central Marshall,
southeastern Madison and southeastern Morgan Counties through 900 PM
CDT...
At 812 PM CDT, Doppler radar was tracking a strong thunderstorm 8
miles northeast of Arab, moving northeast at 15 mph.
HAZARD...Winds in excess of 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Southern Huntsville, Guntersville, Arab, Owens Cross Roads, Grant,
Union Grove, Eddy, Columbus City, Ryan Crossroads and Hampton Cove.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm and a Flash
Flood Warning is in effect. Do not drive your vehicle through
flooded roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
A Tornado Watch remains in effect until 1000 PM CDT for north central
and northeastern Alabama.
&&
LAT...LON 3429 8648 3430 8650 3434 8661 3466 8648
3454 8615 3425 8636
TIME...MOT...LOC 0112Z 210DEG 11KT 3442 8642
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
30Local storm report, Oct 6, 8:34 PM CDT, 28 minutes before
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</html>Local storm report, Oct 6, 8:42 PM CDT, 20 minutes before
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</html>Local storm report, Oct 6, 8:43 PM CDT, 19 minutes before
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</html>Special weather statement, Oct 6, 9:02 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 6, 7:36 PM CDT | Special Weather Statement | HUN | Marshall | 39 min |
| Oct 6, 8:13 PM CDT | Special Weather Statement | HUN | Marshall | 47 min |
| Oct 6, 8:36 PM CDT | Flash Flood Warning | HUN | Cullman | 4 hr |
| Oct 6, 10:50 PM CDT | Flash Flood Warning | HUN | Jackson, Marshall | 2 hr |
| Oct 7, 12:50 AM CDT | Areal Flood Warning | HUN | Cullman, Jackson, Madison, Marshall | 8 hr |
| Oct 7, 8:57 AM CDT | Areal Flood Warning | HUN | Cullman | 111 min |
Nearby
Special Weather Statements in Alabama, 2021Every special weather statement 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.