Alert archive / Tennessee / Special Weather Statements in 2012

Special Weather Statement, NWS Huntsville, AL

August 10, 2012Moore County, Tennessee

NWS Huntsville, AL issued this special weather statement at Aug 10, 2012, 1:49 PM CDT for Moore County, Tennessee. It was in force for 41 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 10, 2012, 1:49 PM CDT (18:49 UTC)
Expired: Aug 10, 2012, 2:30 PM CDT
In force: 41 min
Issued by: NWS Huntsville, AL

County Moore County, TN

The radar

The Northeast Alabama radar (KHTX), 58 km from the middle of the area, began a volume at 18:52 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

Nashville Metro, TN (KBNA), launched 12:00Z, 6.8 hours before the alert went out and 93 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: 1560 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 621 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 71 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

<!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 Aug 10, 12:31 PM CDT, 1 hour 18 minutes earlier.

Area forecast discussion, Aug 10, 12:31 PM CDT, 1 hour 18 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, Aug 10, 12:42 PM CDT, 1 hour 7 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, Aug 10, 1:49 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
149 PM CDT FRI AUG 10 2012

TNZ076-096-101930-
MOORE TN-LINCOLN TN-
149 PM CDT FRI AUG 10 2012

...SIGNIFICANT WEATHER ADVISORY FOR MOORE AND NORTHERN LINCOLN
COUNTIES UNTIL 230 PM CDT...

AT 148 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A STRONG THUNDERSTORM 11 MILES NORTHWEST OF FAYETTEVILLE...
MOVING EAST AT 25 MPH.

HAIL UP TO THE SIZE OF PEAS...WIND GUSTS UP TO 40 MPH...AND HEAVY
RAINFALL WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
LYNCHBURG AND PETERSBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO
AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR
ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL
WEATHER SERVICE.

&&

LAT...LON 3514 8633 3518 8683 3526 8683 3525 8675
      3531 8668 3533 8660 3536 8660 3537 8659
      3535 8654 3536 8649 3533 8646 3532 8642
      3535 8641 3536 8633 3538 8631
TIME...MOT...LOC 1848Z 275DEG 23KT 3527 8670

SL

The office that day

Everything else NWS Huntsville, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 10, 3:11 PM CDT	Special Weather Statement	HUN	Limestone	34 min
Aug 10, 3:24 PM CDT	Special Weather Statement	HUN	Jackson	36 min
Aug 10, 3:59 PM CDT	Severe Thunderstorm Warning	HUN	Jackson	31 min
Aug 10, 4:04 PM CDT	Special Weather Statement	HUN	Lauderdale	41 min
Aug 10, 4:24 PM CDT	Special Weather Statement	HUN	Madison	36 min
Aug 10, 4:39 PM CDT	Special Weather Statement	HUN	Jackson	51 min
Aug 10, 4:44 PM CDT	Special Weather Statement	HUN	Lawrence	31 min
Aug 10, 5:02 PM CDT	Special Weather Statement	HUN	Madison	28 min
Aug 10, 5:23 PM CDT	Special Weather Statement	HUN	DeKalb	52 min
Aug 10, 5:29 PM CDT	Flash Flood Warning	HUN	Limestone, Madison	3 hr
Aug 10, 5:37 PM CDT	Special Weather Statement	HUN	Franklin	53 min
Aug 10, 5:45 PM CDT	Special Weather Statement	HUN	Limestone	45 min
Aug 10, 5:47 PM CDT	Special Weather Statement	HUN	Lawrence	28 min
Aug 10, 5:58 PM CDT	Special Weather Statement	HUN	Madison	47 min
Aug 10, 6:10 PM CDT	Special Weather Statement	HUN	DeKalb	50 min
Aug 10, 6:13 PM CDT	Flash Flood Warning	HUN	Lawrence	3 hr
Aug 10, 6:55 PM CDT	Special Weather Statement	HUN	DeKalb	20 min
Aug 10, 2:05 PM CDT	Special Weather Statement	HUN	Lincoln	40 min
Aug 10, 2:40 PM CDT	Special Weather Statement	HUN	Moore	35 min
Aug 10, 3:30 PM CDT	Special Weather Statement	HUN	Lincoln	45 min

Nearby

Special Weather Statements in Tennessee, 2012 Every special weather statement in 2012

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.