Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Huntsville, AL

June 9, 2021DeKalb County, Alabama

NWS Huntsville, AL issued this special weather statement at Jun 9, 2021, 11:09 AM CDT for DeKalb County, Alabama. It was in force for 51 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: Jun 9, 2021, 11:09 AM CDT (16:09 UTC)
Expired: Jun 9, 2021, 12:00 PM CDT
In force: 51 min
Issued by: NWS Huntsville, AL

County DeKalb County, AL

The radar

The Northeast Alabama radar (KHTX), 70 km from the middle of the area, began a volume at 16:10 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 4.2 hours before the alert went out and 160 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 93 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 868 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -30 m²/s²
0-3 km storm-relative helicity: -17 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jun 9, 10:01 AM CDT, 1 hour 8 minutes earlier.

Area forecast discussion, Jun 9, 10:01 AM CDT, 1 hour 8 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, Jun 9, 10:15 AM CDT, 54 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>

In the hours before

Special weather statement, Jun 9, 5:27 AM CDT, 5 hours 42 minutes before

Special Weather Statement
National Weather Service Huntsville AL
527 AM CDT Wed Jun 9 2021

ALZ005-006-TNZ096-091115-
Madison AL-Limestone AL-Lincoln TN-
527 AM CDT Wed Jun 9 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MADISON...EASTERN
LIMESTONE AND SOUTHERN LINCOLN COUNTIES UNTIL 615 AM CDT...

At 527 AM CDT, Doppler radar was tracking a strong thunderstorm over
Athens, moving northeast at 35 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Northern Huntsville, Madison, Athens, Fayetteville, Moores Mill,
Meridianville, Hazel Green, Ardmore, Harvest and Tanner.

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
storm has passed.

Very heavy rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3508 8632 3503 8632 3493 8631 3494 8632
      3493 8632 3491 8631 3489 8634 3485 8635
      3465 8694 3483 8707 3499 8689 3499 8684
      3504 8684 3522 8664
TIME...MOT...LOC 1027Z 237DEG 30KT 3479 8693

AMP

Special weather statement, Jun 9, 6:11 AM CDT, 4 hours 58 minutes before

Special Weather Statement
National Weather Service Huntsville AL
611 AM CDT Wed Jun 9 2021

ALZ006-009-TNZ076-096-097-091200-
Madison AL-Jackson AL-Franklin TN-Moore TN-Lincoln TN-
611 AM CDT Wed Jun 9 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN JACKSON...
NORTHEASTERN MADISON...SOUTHEASTERN MOORE...SOUTHERN LINCOLN AND
FRANKLIN COUNTIES UNTIL 700 AM CDT...

At 610 AM CDT, Doppler radar was tracking a strong thunderstorm near
Hazel Green, or 9 miles north of Meridianville, moving northeast at
35 mph.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include...
Northern Huntsville, Winchester, Fayetteville, Moores Mill,
Meridianville, Hazel Green, Decherd, Estill Springs, Cowan and
Huntland.

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
storm has passed.

Very heavy rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3535 8610 3494 8591 3482 8665 3510 8675
      3536 8611
TIME...MOT...LOC 1110Z 243DEG 30KT 3499 8654

AMP

Special weather statement, Jun 9, 6:47 AM CDT, 4 hours 22 minutes before

Special Weather Statement
National Weather Service Huntsville AL
647 AM CDT Wed Jun 9 2021

TNZ076-097-091215-
Franklin TN-Moore TN-
647 AM CDT Wed Jun 9 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN MOORE AND NORTHERN
FRANKLIN COUNTIES UNTIL 715 AM CDT...

At 647 AM CDT, Doppler radar was tracking a strong thunderstorm near
Estill Springs, or 8 miles northwest of Winchester, moving northeast
at 35 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Winchester, Decherd, Estill Springs, Tims Ford Lake, Sewanee, Woods
Reservoir, Harmony, Arnold AFB and Alto.

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
storm has passed.

Very heavy rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3539 8628 3538 8625 3537 8627 3534 8624
      3535 8622 3533 8620 3536 8617 3535 8616
      3536 8616 3534 8603 3531 8600 3532 8598
      3529 8592 3523 8588 3513 8626 3536 8636
      3536 8633 3541 8626
TIME...MOT...LOC 1147Z 243DEG 30KT 3530 8618

AMP

Special weather statement, Jun 9, 8:24 AM CDT, 2 hours 45 minutes before

Special Weather Statement
National Weather Service Huntsville AL
824 AM CDT Wed Jun 9 2021

ALZ006-008>010-TNZ097-091415-
Marshall AL-Madison AL-DeKalb AL-Jackson AL-Franklin TN-
824 AM CDT Wed Jun 9 2021

...SIGNIFICANT WEATHER ADVISORY FOR JACKSON...NORTHEASTERN
MARSHALL...EASTERN MADISON...NORTHEASTERN DEKALB AND SOUTHEASTERN
FRANKLIN COUNTIES UNTIL 915 AM CDT...

At 824 AM CDT, Doppler radar was tracking a strong thunderstorm near
Scottsboro, moving northeast at 40 mph.

Winds in excess of 35 mph will be possible with this storm.

Locations impacted include...
Scottsboro, Bridgeport, Henagar, Stevenson, Hollywood, Grant,
Skyline, Section, Woodville and Ider.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Gusty winds will be capable of knocking down small tree limbs along
with other small unsecured items. Seek safe shelter until this storm
has passed.

&&

LAT...LON 3440 8618 3478 8637 3500 8606 3500 8586
      3499 8586 3499 8561 3477 8556
TIME...MOT...LOC 1324Z 234DEG 33KT 3464 8612

Special weather statement, Jun 9, 11:09 AM 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
Jun 8, 7:10 PM CDT	Special Weather Statement	HUN	Madison	35 min
Jun 8, 8:27 PM CDT	Special Weather Statement	HUN	Jackson	33 min
Jun 9, 2:18 AM CDT	Special Weather Statement	HUN	Colbert, Franklin	42 min
Jun 9, 5:27 AM CDT	Special Weather Statement	HUN	Limestone	48 min
Jun 9, 8:24 AM CDT	Special Weather Statement	HUN	Jackson	51 min
Jun 9, 9:12 AM CDT	Flash Flood Watch	HUN	Colbert, Cullman, Franklin, Lauderdale, Lawrence, Marshall and 1 more	10 hr
Jun 9, 11:25 AM CDT	Flash Flood Warning	HUN	DeKalb, Marshall	2 hr
Jun 9, 11:57 AM CDT	Special Weather Statement	HUN	DeKalb	48 min
Jun 9, 12:23 PM CDT	Special Weather Statement	HUN	Lawrence, Morgan	52 min
Jun 9, 12:28 PM CDT	Areal Flood Warning	HUN	Colbert, Franklin, Lauderdale, Lawrence	3 hr
Jun 9, 5:14 PM CDT	Special Weather Statement	HUN	DeKalb	46 min
Jun 9, 6:11 AM CDT	Special Weather Statement	HUN	Franklin, Lincoln	49 min
Jun 9, 6:47 AM CDT	Special Weather Statement	HUN	Franklin	28 min

Nearby

Special Weather Statements in Alabama, 2021 Every 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.