Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 12, NWS Amarillo, TX

May 8, 2013Cimarron County, Oklahoma

NWS Amarillo, TX issued this severe thunderstorm warning at May 8, 2013, 3:03 PM CDT for Cimarron County, Oklahoma. It was in force for 42 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
May 8, 2013, 3:03 PM CDT (20:03 UTC)
Expired
May 8, 2013, 3:45 PM CDT
In force
42 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon

County Cimarron County, OK

The radar

The Amarillo radar (KAMA), 183 km from the middle of the area, began a volume at 20:05 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 8, 2:25 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 8.1 hours before the alert went out and 184 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-pSkew-T log-p diagram, Amarillo Airport, TX at 12:00Z on 2013-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 286 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 12:00Z on 2013-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 185 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
286 J/kg
Mixed-layer CIN
-246 J/kg
Mixed-layer LCL
1664 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
185 m²/s²
0-3 km storm-relative helicity
201 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 Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 8, 12:37 PM CDT, 2 hours 26 minutes earlier.

Area forecast discussion, May 8, 12:37 PM CDT, 2 hours 26 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, May 8, 2:33 PM CDT, 30 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AMARILLO TX
233 PM CDT WED MAY 8 2013

OKZ001>003-TXZ001>020-091100-
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
233 PM CDT WED MAY 8 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA
PANHANDLES.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS THE OKLAHOMA
PANHANDLE AND NORTHERN AND EASTERN TEXAS PANHANDLE. THE PRIMARY
HAZARDS WITH ANY STORMS WILL BE LARGE HAIL TO PING PONG BALL SIZED
AND STRONG WINDS TO 60 MPH.

ELEVATED FIRE WEATHER CONDITIONS WILL CONTINUE OVER THE WESTERN AND
CENTRAL PANHANDLES THROUGH 9 PM THIS EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THUNDERSTORMS ARE POSSIBLE ACROSS MUCH OF THE PANHANDLES THURSDAY
THROUGH FRIDAY NIGHT. A FEW SHORT LIVED STRONG OR SEVERE STORMS WILL
BE POSSIBLE THURSDAY AFTERNOON IN THE SOUTHERN PANHANDLES. THE
PRIMARY HAZARDS WITH ANY OF THESE STORMS WILL BE LARGE HAIL AND
STRONG WINDS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND THIS EVENING.

AREA FIRE MANAGERS AND EMERGENCY OFFICIALS SHOULD BE ALERT FOR
ELEVATED OR CRITICAL FIRE WEATHER CONDITIONS THROUGH THIS EVENING.

JOHNSON

In the hours before

Special weather statement, May 8, 2:40 PM CDT, 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
240 PM CDT WED MAY 8 2013

OKZ001-082030-
CIMARRON OK-
240 PM CDT WED MAY 8 2013

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN CIMARRON COUNTY UNTIL 330
PM CDT...

AT 237 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
A THUNDERSTORM WAS RAPIDLY DEVELOPING 5 MILES WEST OF WHEELESS...OR
22 MILES NORTHEAST OF CLAYTON...MOVING NORTHEAST AT 20 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  WHEELESS...           KENTON...             FELT...
  BLACK MESA PARK...

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 3700 10265 3652 10261 3651 10301 3700 10301
      3700 10300 3701 10278
TIME...MOT...LOC 1939Z 241DEG 14KT 3674 10297

JC

The office that day

Everything else NWS Amarillo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 8, 4:17 PM CDTSpecial Weather StatementAMACollingsworth28 min
May 8, 4:30 PM CDTSevere Thunderstorm WarningAMACollingsworth45 min
May 8, 4:36 PM CDTSpecial Weather StatementAMAWheeler24 min
May 8, 4:39 PM CDTSevere Thunderstorm WarningAMAWheeler66 min
May 8, 5:06 PM CDTSpecial Weather StatementAMAHemphill24 min
May 8, 5:17 PM CDTSevere Thunderstorm WarningAMACollingsworth, Donley, Gray, Wheeler58 min
May 8, 5:36 PM CDTAreal Flood AdvisoryAMACollingsworth3 hr
May 8, 5:57 PM CDTSpecial Weather StatementAMAWheeler33 min
May 8, 6:29 PM CDTSpecial Weather StatementAMAHemphill46 min
May 8, 6:40 PM CDTSpecial Weather StatementAMAWheeler50 min
May 8, 2:40 PM CDTSpecial Weather StatementAMACimarron50 min
May 8, 3:46 PM CDTSevere Thunderstorm WarningAMACimarron44 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2013Every severe thunderstorm warning in 2013

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.