Alert archive / Alabama / Special Weather Statements in 2021
Special Weather Statement, NWS Huntsville, AL
NWS Huntsville, AL issued this special weather statement at Apr 7, 2021, 11:55 PM CDT for Franklin County, Lawrence County, Limestone County, Alabama. It was in force for 50 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
- Apr 7, 2021, 11:55 PM CDT (04:55 UTC)
- Expired
- Apr 8, 2021, 12:45 AM CDT
- In force
- 50 min
- Issued by
- NWS Huntsville, AL
Counties Franklin County, AL, Lawrence County, AL, Limestone County, AL
The radar
The Columbus AFB radar (KGWX), 118 km from the middle of the area, began a volume at 04:57 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, 4.9 hours before the alert went out and 173 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
- 2034 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Apr 7, 10:57 PM CDT, 58 minutes earlier.
Area forecast discussion, Apr 7, 10:57 PM CDT, 58 minutes before
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</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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Please try again in a few minutes.
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</html>Hazardous weather outlook, Apr 7, 9:35 PM CDT, 2 hours 20 minutes before
Hazardous Weather Outlook National Weather Service Huntsville AL 935 PM CDT Wed Apr 7 2021 ALZ001>010-016-TNZ076-096-097-081745- Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan- Marshall-Jackson-DeKalb-Cullman-Moore-Lincoln-Franklin TN- 935 PM CDT Wed Apr 7 2021 This Hazardous Weather Outlook is for north central Alabama, northeast Alabama, northwest Alabama and southern middle Tennessee. .DAY ONE...Tonight. A line of thunderstorms will move across the area overnight. Some of the storms could become strong in intensity with wind gusts between 40-50 mph being the main threat. Heavy downpours could lead to brief minor street flooding and significant ponding of water. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Additional isolated to scattered thunderstorms will be possible at times during Friday and Saturday. Some of the storms in this time frame could become strong, with gusty outflow winds the main threat. .SPOTTER INFORMATION STATEMENT... Activation of storm spotters and emergency management personnel is not anticipated at this time.
In the hours before
Special weather statement, Apr 7, 10:20 PM CDT, 1 hour 35 minutes before
Special Weather Statement
National Weather Service Huntsville AL
1020 PM CDT Wed Apr 7 2021
ALZ001>003-080415-
Lauderdale AL-Franklin AL-Colbert AL-
1020 PM CDT Wed Apr 7 2021
...SIGNIFICANT WEATHER ADVISORY FOR LAUDERDALE...COLBERT AND
NORTHWESTERN FRANKLIN COUNTIES UNTIL 1115 PM CDT...
At 1019 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Hinkle to near Thrashers to near Wheeler
to Pratts Friendship. Movement was northeast at 60 mph.
Winds in excess of 40 mph will be possible with these storms.
Locations impacted include...
Florence, Muscle Shoals, Sheffield, Tuscumbia, Red Bay, Killen,
Cherokee, Littleville, Leighton and St. Florian.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Very heavy rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike several miles away from a thunderstorm. Seek a
safe shelter inside a building or vehicle.
&&
LAT...LON 3500 8749 3457 8754 3446 8816 3489 8810
3492 8816 3501 8820
TIME...MOT...LOC 0319Z 238DEG 51KT 3483 8859 3471 8853 3457 8850 3445
8859
05/MASpecial weather statement, Apr 7, 11:14 PM CDT, 41 minutes before
Special Weather Statement National Weather Service Huntsville AL 1114 PM CDT Wed Apr 7 2021 ALZ001>004-080500- Lawrence AL-Lauderdale AL-Franklin AL-Colbert AL- 1114 PM CDT Wed Apr 7 2021 ...SIGNIFICANT WEATHER ADVISORY FOR LAUDERDALE...COLBERT...NORTHERN FRANKLIN AND WEST CENTRAL LAWRENCE COUNTIES UNTIL MIDNIGHT CDT... At 1114 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from 7 miles southeast of Walnut Grove to 9 miles northwest of Belgreen. Movement was east at 25 mph. Winds in excess of 40 mph will be possible with these storms. Locations impacted include... Florence, Muscle Shoals, Russellville, Sheffield, Tuscumbia, Killen, Cherokee, Littleville, Leighton and St. Florian. PRECAUTIONARY/PREPAREDNESS ACTIONS... Very heavy rainfall is also occurring with these storms, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with these storms. Lightning can strike several miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3500 8806 3500 8744 3453 8745 3448 8805 TIME...MOT...LOC 0414Z 266DEG 21KT 3497 8795 3458 8796 RSB
Special weather statement, Apr 7, 11:55 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Huntsville AL
1155 PM CDT Wed Apr 7 2021
ALZ001>005-007-080545-
Lawrence AL-Lauderdale AL-Morgan AL-Franklin AL-Limestone AL-
Colbert AL-
1155 PM CDT Wed Apr 7 2021
...SIGNIFICANT WEATHER ADVISORY FOR EASTERN LAUDERDALE...WESTERN
LIMESTONE...SOUTHEASTERN COLBERT...EASTERN FRANKLIN...NORTHWESTERN
MORGAN AND LAWRENCE COUNTIES UNTIL 1245 AM CDT...
At 1154 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Lexington to 6 miles north of Town Creek
to near Leighton to 7 miles northwest of Hackleburg. Movement was
east at 40 mph.
Wind gusts up to 50 mph will be possible with these storms.
Locations impacted include...
Decatur, Athens, Russellville, Moulton, Trinity, Rogersville, Phil
Campbell, Town Creek, Littleville and Lexington.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Strong gusty winds will be capable of knocking down small tree limbs
along with other small unsecured items. Seek safe shelter until this
line of storms has passed.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike several miles away from a thunderstorm. Seek a
safe shelter inside a building or vehicle.
&&
LAT...LON 3432 8800 3476 8749 3500 8749 3499 8690
3482 8690 3430 8717
TIME...MOT...LOC 0454Z 259DEG 34KT 3494 8742 3477 8741 3465 8757 3436
8790
RSBThe office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 10:20 PM CDT | Special Weather Statement | HUN | Colbert, Lauderdale | 55 min |
| Apr 7, 11:14 PM CDT | Special Weather Statement | HUN | Colbert, Lauderdale | 46 min |
| Apr 8, 12:17 AM CDT | Special Weather Statement | HUN | Franklin | 28 min |
| Apr 8, 12:46 AM CDT | Special Weather Statement | HUN | Lawrence | 44 min |
| Apr 8, 1:12 AM CDT | Special Weather Statement | HUN | Madison | 48 min |
| Apr 8, 3:52 AM CDT | Special Weather Statement | HUN | Colbert | 38 min |
| Apr 8, 4:35 AM CDT | Severe Thunderstorm Warning | HUN | Franklin | 25 min |
| Apr 8, 5:00 AM CDT | Special Weather Statement | HUN | Colbert | 30 min |
| Apr 8, 9:22 AM CDT | Special Weather Statement | HUN | Madison | 38 min |
| Apr 8, 9:44 AM CDT | Areal Flood Warning | HUN | Madison | 3 hr |
| Apr 8, 3:56 PM CDT | Areal Flood Warning | HUN | Madison | 3 hr |
| Apr 8, 9:28 AM CDT | Special Weather Statement | HUN | Franklin | 32 min |
| Apr 8, 9:37 AM CDT | Tornado Warning | HUN | Franklin | 8 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.