Alert archive / Tennessee / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 46, NWS Morristown, TN

June 1, 2015McMinn County, Monroe County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jun 1, 2015, 10:33 PM EDT for McMinn County, Monroe County, Tennessee. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 1, 2015, 10:33 PM EDT (02:33 UTC)
Expired: Jun 1, 2015, 11:00 PM EDT
In force: 27 min
Issued by: NWS Morristown, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties McMinn County, TN, Monroe County, TN

The radar

The Knoxville radar (KMRX), 124 km from the middle of the area, began a volume at 02:33 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, 2.6 hours before the alert went out and 330 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: 659 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 1123 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 41 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Morristown, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 1, 8:40 PM EDT, 1 hour 53 minutes earlier.

Area forecast discussion, Jun 1, 8:40 PM EDT, 1 hour 53 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 1, 9:20 PM EDT, 1 hour 13 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 1, 5:16 PM EDT, 5 hours 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
516 PM EDT MON JUN 1 2015

TNZ013-014-037-012200-
CAMPBELL TN-CLAIBORNE TN-UNION TN-
516 PM EDT MON JUN 1 2015

SIGNIFICANT WEATHER ADVISORY FOR CAMPBELL...CLAIBORNE...AND UNION
COUNTIES UNTIL 600 PM EDT...

AT 515 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 9
MILES SOUTHEAST OF LA FOLLETTE...MOVING EAST AT 25 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
NEW TAZEWELL...TAZEWELL...HARROGATE...SHARPS CHAPEL...LONE
MOUNTAIN...SPRINGDALE...NORRIS LAKE...ROSE HILL...SANDLICK AND BIG
RIDGE S.P..

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING
CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER
INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3636 8353 3637 8356 3636 8357 3637 8359
      3634 8364 3633 8366 3634 8367 3632 8368
      3625 8400 3630 8404 3627 8404 3628 8405
      3635 8408 3657 8361
TIME...MOT...LOC 2115Z 248DEG 21KT 3632 8397

AMP.23

Special weather statement, Jun 1, 6:27 PM EDT, 4 hours 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
627 PM EDT MON JUN 1 2015

TNZ035-036-067>069-012315-
ROANE TN-KNOX TN-LOUDON TN-ANDERSON TN-MORGAN TN-
627 PM EDT MON JUN 1 2015

SIGNIFICANT WEATHER ADVISORY FOR ROANE...KNOX...LOUDON...ANDERSON...
AND MORGAN COUNTIES UNTIL 715 PM EDT...

AT 627 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
MIDTOWN...OR NEAR ROCKWOOD...MOVING EAST AT 25 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
OAK RIDGE...LENOIR CITY...KINGSTON...ROCKWOOD...FARRAGUT...OLIVER
SPRINGS...MIDTOWN...FAIRVIEW...HARRIMAN...OAKDALE...COALFIELD...
DEARMOND...BRADBURY AND PINE ORCHARD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING
CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER
INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3575 8464 3589 8471 3591 8468 3595 8470
      3596 8469 3614 8426 3587 8411
TIME...MOT...LOC 2227Z 249DEG 21KT 3588 8460

AMP.23

Special weather statement, Jun 1, 6:47 PM EDT, 3 hours 46 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
647 PM EDT MON JUN 1 2015

NCZ060-061-012315-
CHEROKEE NC-CLAY NC-
647 PM EDT MON JUN 1 2015

SIGNIFICANT WEATHER ADVISORY FOR CHEROKEE...AND CLAY COUNTIES UNTIL
715 PM EDT...

AT 647 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
MURPHY...MOVING EAST AT 30 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
MURPHY...HOT HOUSE...MARBLE AND CULBERSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3499 8423 3506 8427 3507 8425 3523 8391
      3507 8383 3506 8384 3499 8413
TIME...MOT...LOC 2247Z 247DEG 24KT 3504 8413

AMP.23

Special weather statement, Jun 1, 7:30 PM EDT, 3 hours 3 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, Jun 1, 9:46 PM EDT, 47 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, Jun 1, 10:29 PM EDT, 4 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 Morristown, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 1, 9:46 PM EDT	Special Weather Statement	MRX	Bradley, McMinn	44 min
Jun 1, 10:08 PM EDT	Areal Flood Advisory	MRX	Bradley, Hamilton, McMinn, Meigs	3 hr
Jun 1, 10:29 PM EDT	Special Weather Statement	MRX	McMinn	46 min
Jun 1, 11:00 PM EDT	Special Weather Statement	MRX	Monroe	45 min
Jun 2, 12:36 PM EDT	Special Weather Statement	MRX	Hawkins	39 min
Jun 2, 1:33 PM EDT	Special Weather Statement	MRX	Hawkins	42 min
Jun 2, 1:53 PM EDT	Severe Thunderstorm Warning	MRX	Hawkins, Sullivan	37 min
Jun 2, 2:49 PM EDT	Severe Thunderstorm Warning	MRX	Bradley, Hamilton, McMinn, Meigs	41 min
Jun 2, 2:51 PM EDT	Special Weather Statement	MRX	Sullivan	39 min
Jun 2, 3:00 PM EDT	Areal Flood Advisory	MRX	Sullivan	2 hr
Jun 2, 3:59 PM EDT	Special Weather Statement	MRX	Bradley	46 min
Jun 2, 4:23 PM EDT	Areal Flood Advisory	MRX	Bradley, Hamilton	3 hr
Jun 2, 4:26 PM EDT	Special Weather Statement	MRX	Sevier	49 min
Jun 2, 4:51 PM EDT	Severe Thunderstorm Warning	MRX	Blount, Jefferson, Knox, Sevier	39 min
Jun 2, 5:01 PM EDT	Areal Flood Advisory	MRX	Blount, Sevier	3 hr
Jun 2, 5:22 PM EDT	Severe Thunderstorm Warning	MRX	Blount, Sevier	53 min
Jun 2, 5:53 PM EDT	Severe Thunderstorm Warning	MRX	Cocke, Greene, Hamblen, Hawkins, Jefferson	34 min
Jun 2, 6:13 PM EDT	Flash Flood Warning	MRX	Blount, Sevier	3 hr
Jun 2, 6:14 PM EDT	Special Weather Statement	MRX	Cocke	31 min
Jun 2, 6:34 PM EDT	Special Weather Statement	MRX	Blount	41 min
Jun 2, 7:24 PM EDT	Special Weather Statement	MRX	Knox	51 min
Jun 2, 2:29 PM EDT	Special Weather Statement	MRX	Scott	46 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2015 Every severe thunderstorm warning in 2015

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.