Alert archive / Alabama / Special Weather Statements in 2021
Special Weather Statement, NWS Huntsville, AL
NWS Huntsville, AL issued this special weather statement at Jul 27, 2021, 6:22 PM CDT for Cullman 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
- Jul 27, 2021, 6:22 PM CDT (23:22 UTC)
- Expired
- Jul 27, 2021, 7:00 PM CDT
- In force
- 38 min
- Issued by
- NWS Huntsville, AL
County Cullman County, AL
The radar
The Birmingham radar (KBMX), 110 km from the middle of the area, began a volume at 23:24 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 12:00Z, 11.4 hours before the alert went out and 109 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
- 1546 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 923 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- -17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</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>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</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 Jul 27, 6:20 PM CDT, 2 minutes earlier.
Area forecast discussion, Jul 27, 6:20 PM CDT, 2 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</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>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Jul 27, 2:33 PM CDT, 3 hours 49 minutes before
Hazardous Weather Outlook National Weather Service Huntsville AL 233 PM CDT Tue Jul 27 2021 ALZ001>010-016-TNZ076-096-097-281145- Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan- Marshall-Jackson-DeKalb-Cullman-Moore-Lincoln-Franklin TN- 233 PM CDT Tue Jul 27 2021 This Hazardous Weather Outlook is for north Alabama and portions of southern middle Tennessee. .DAY ONE...Tonight... Isolated to scattered thunderstorms will remain possible this afternoon before dissipating early this evening. Expect storm coverage to be more widespread east of the I-65 corridor. A few of the strongest storms could produce wind gusts around 55 MPH, as well as frequent lightning and locally heavy downpours. Storms are expected to dissipate during the early evening hours. A dangerous combination of heat and humidity will result in heat index readings in the 105-107 degree range across portions of northwest Alabama this afternoon. A Heat Advisory is in effect for this region through 7 PM CDT today. .DAYS TWO THROUGH SEVEN...Wednesday through Monday... A short-lived heat wave is expected across the Tennessee Valley later this week, with dangerously high heat indices in the 105-110 degree range for a portions of northern Alabama and southern middle Tennessee possible on Thursday and Friday. Isolated thunderstorms will be possible across our southern Middle Tennessee counties late Friday afternoon and Friday night, as a cold front approaches the region from the north. The front will stall across the region this weekend, resulting in several rounds of thunderstorms from Saturday night through Monday. Conditions appear favorable for strong to severe thunderstorms, especially on Sunday and Sunday night. .SPOTTER CALL TO ACTION STATEMENT... Activation of storm spotters and emergency management personnel is not anticipated at this time. 20
In the hours before
Special weather statement, Jul 27, 2:51 PM CDT, 3 hours 31 minutes before
Special Weather Statement National Weather Service Huntsville AL 251 PM CDT Tue Jul 27 2021 ALZ008>010-272015- Marshall AL-DeKalb AL-Jackson AL- 251 PM CDT Tue Jul 27 2021 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL JACKSON... NORTHEASTERN MARSHALL AND WEST CENTRAL DEKALB COUNTIES UNTIL 315 PM CDT... At 251 PM CDT, Doppler radar was tracking a strong thunderstorm near Section, or 7 miles south of Scottsboro, moving south at 10 mph. Winds in excess of 40 mph will be possible with this storm. Locations impacted include... Scottsboro, Fyffe, Section and Langston. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike several miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3464 8618 3465 8597 3442 8590 3441 8622 TIME...MOT...LOC 1951Z 357DEG 7KT 3458 8608 RSB
Special weather statement, Jul 27, 3:54 PM CDT, 2 hours 28 minutes before
Special Weather Statement
National Weather Service Huntsville AL
354 PM CDT Tue Jul 27 2021
ALZ009-010-272145-
DeKalb AL-Jackson AL-
354 PM CDT Tue Jul 27 2021
...SIGNIFICANT WEATHER ADVISORY FOR EASTERN JACKSON AND NORTHEASTERN
DEKALB COUNTIES UNTIL 445 PM CDT...
At 354 PM CDT, Doppler radar was tracking a strong thunderstorm near
Ider, or 8 miles southwest of Trenton, moving south at 20 mph.
Wind gusts up to 50 mph will be possible with this storm.
Locations impacted include...
Fort Payne, Henagar, Sylvania, Ider, Valley Head, Hammondville,
Mentone, Sulpher Springs and Desoto State Park.
LAT...LON 3450 8555 3450 8556 3449 8556 3448 8558
3447 8558 3450 8581 3484 8565 3483 8558
3453 8551
TIME...MOT...LOC 2054Z 011DEG 16KT 3477 8558
05/MASpecial weather statement, Jul 27, 4:12 PM CDT, 2 hours 10 minutes before
Special Weather Statement
National Weather Service Huntsville AL
412 PM CDT Tue Jul 27 2021
ALZ010-272200-
DeKalb AL-
412 PM CDT Tue Jul 27 2021
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN DEKALB COUNTY UNTIL
500 PM CDT...
At 411 PM CDT, Doppler radar was tracking a strong thunderstorm near
Little River Canyon National Preserve, moving north at 5 mph.
Pea size hail and wind gusts up to 50 mph will be possible with this
storm.
Locations impacted include...
Fort Payne, Rainsville, Pine Ridge, Lebanon, Dog Town, Collbran,
Adamsburg, Desoto State Park and Little River Canyon NP.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Very heavy rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike several miles away from a thunderstorm. Seek a
safe shelter inside a building or vehicle.
&&
LAT...LON 3448 8558 3447 8557 3444 8558 3441 8561
3437 8563 3436 8566 3434 8568 3426 8578
3447 8589 3453 8557 3449 8557
TIME...MOT...LOC 2111Z 167DEG 6KT 3436 8570
05/MASpecial weather statement, Jul 27, 5:01 PM CDT, 1 hour 21 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</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>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jul 27, 5:40 PM CDT, 42 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</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>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jul 27, 6:22 PM CDT, 0 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</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>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 4:32 AM CDT | Heat Advisory | HUN | Colbert, Franklin, Lauderdale, Lawrence | 14 hr |
| Jul 27, 2:51 PM CDT | Special Weather Statement | HUN | DeKalb | 24 min |
| Jul 27, 3:54 PM CDT | Special Weather Statement | HUN | DeKalb | 51 min |
| Jul 27, 4:12 PM CDT | Special Weather Statement | HUN | DeKalb | 48 min |
| Jul 27, 5:01 PM CDT | Special Weather Statement | HUN | DeKalb | 44 min |
| Jul 27, 5:40 PM CDT | Special Weather Statement | HUN | Cullman | 50 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.