Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 411, NWS Norman, OK

May 19, 20174 counties in Oklahoma; Clay County, Wichita County, Texas

NWS Norman, OK issued this severe thunderstorm warning at May 19, 2017, 3:36 PM CDT for 4 counties in Oklahoma; Clay County, Wichita County, Texas. It was in force for 54 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 19, 2017, 3:36 PM CDT (20:36 UTC)
Expired: May 19, 2017, 4:30 PM CDT
In force: 54 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 2.75 in
Wind: 60.0 mph

Counties Comanche County, OK, Cotton County, OK, Jefferson County, OK, Tillman County, OK, Clay County, TX, Wichita County, TX

The radar

The Altus AFB radar (KFDR), 54 km from the middle of the area, began a volume at 20:40 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.

Issued	Product	Office	Lasted
May 19, 3:26 PM CDT	Tornado Watch	SPC	11 hr

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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 19, 3:19 PM CDT, 17 minutes earlier.

Area forecast discussion, May 19, 3:19 PM CDT, 17 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 19, 12:05 PM CDT, 3 hours 31 minutes before

Hazardous Weather Outlook
National Weather Service Norman OK
1205 PM CDT Fri May 19 2017

OKZ004>048-050>052-TXZ083>090-201715-
Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield-
Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne-
Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-McClain-
Cleveland-Pottawatomie-Seminole-Hughes-Harmon-Greer-Kiowa-Jackson-
Tillman-Comanche-Stephens-Garvin-Murray-Pontotoc-Coal-Cotton-
Jefferson-Carter-Johnston-Atoka-Love-Marshall-Bryan-Hardeman-
Foard-Wilbarger-Wichita-Knox-Baylor-Archer-Clay-
1205 PM CDT Fri May 19 2017

This hazardous weather outlook is for portions of northern...
western...central...and southern Oklahoma...and western north
Texas.

.DAY ONE...This afternoon and Tonight...

.THUNDERSTORMS...
There is an enhanced risk of severe thunderstorms today and
tonight across portions of north Texas and southern Oklahoma.
There is a slight risk of severe thunderstorms across much of the
remainder of Oklahoma, except for northwest Oklahoma.

LOCATION...
The enhanced risk is southeast of a line from Seymour and
Burkburnett Texas to Duncan and Seminole Oklahoma.

Surrounding the enhanced risk, there is also a slight risk across
much of Oklahoma southeast of a line from Alva to Cheyenne to
Hollis Oklahoma, and also includes the remainder of western north
Texas.

TIMING...
Through Midnight tonight.

IMPACTS...
Hail up to the size of golf balls, winds to 80 mph will be
possible with the strongest storms, with the highest chances in
the enhanced risk area.

There is a low chance of tornadoes.

Heavy rainfall will be possible over much of the risk areas.

DISCUSSION...
Showers and thunderstorms will continue to develop and move across
the area this afternoon and tonight. Some of the storms could
become severe with large hail, damaging winds, and very heavy
rainfall. There will be a low chance of a tornado with these
storms.

Thunderstorms will continue overnight, although the risk of severe
weather will decrease late this evening.

.SPOTTER AND EMERGENCY MANAGEMENT STATEMENT...
Storm spotter groups and emergency management personnel across
Oklahoma and north Texas should prepare for severe weather
operations during the day into this evening.

.Flooding...
More widespread heavy rainfall will be possible through tonight.
This heavy rain could lead to flash flooding and river flooding in
some locations.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday...

.THUNDERSTORMS...
Isolated thunderstorms will be possible in southeastern Oklahoma
Saturday morning before moving out of the area.

There will be chances of thunderstorms again Sunday night through
Tuesday.

Get graphics and more details at weather.gov/norman...and follow
our weather forecast office on Twitter and Facebook.

In the hours before

Local storm report, May 19, 2:26 PM CDT, 1 hour 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
226 PM CDT FRI MAY 19 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0224 PM     HAIL             5 WSW JOY               33.55N 98.30W
05/19/2017  E1.00 INCH       CLAY               TX   TRAINED SPOTTER

&&

MAD

Local storm report, May 19, 2:35 PM CDT, 1 hour 1 minute 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>

Local storm report, May 19, 2:50 PM CDT, 46 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, May 19, 2:53 PM CDT, 43 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>

Local storm report, May 19, 3:28 PM CDT, 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>

Special weather statement, May 19, 3:28 PM CDT, 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
328 PM CDT FRI MAY 19 2017

OKZ028>030-040-192100-
Pottawatomie OK-Garvin OK-Cleveland OK-McClain OK-
328 PM CDT FRI MAY 19 2017

...SIGNIFICANT WEATHER ADVISORY FOR southwestern Pottawatomie...
northeastern Garvin...southeastern Cleveland and southeastern McClain
Counties Until 400 PM CDT...

AT 326 PM CDT, a strong thunderstorm was located near Pauls Valley,
moving northeast at 45 MPH.

HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 40 MPH...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 3494 9689 3496 9692 3496 9693 3489 9693
      3465 9714 3469 9749 3500 9723 3500 9684
TIME...MOT...LOC 2026Z 219DEG 38KT 3476 9721

30

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 18, 7:05 PM CDT	Areal Flood Advisory	OUN	Comanche, Cotton, Jefferson, Stephens, Tillman	3 hr
May 18, 7:13 PM CDT	Tornado Warning	OUN	Alfalfa, Woods	32 min
May 18, 7:15 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Major, Woods	45 min
May 18, 7:16 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Oklahoma	29 min
May 18, 7:18 PM CDT	Special Weather Statement	OUN	Garfield	27 min
May 18, 7:24 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain, Oklahoma	51 min
May 18, 7:27 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	33 min
May 18, 7:34 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Cotton, Garvin, Grady, Jefferson, Murray and 2 more	41 min
May 18, 7:40 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant	65 min
May 18, 7:43 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Lincoln, Oklahoma, Pottawatomie	47 min
May 18, 7:49 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain	26 min
May 18, 7:55 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant, Major	50 min
May 18, 8:00 PM CDT	Areal Flood Advisory	OUN	Cleveland, McClain, Pottawatomie	3 hr
May 18, 8:12 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Grady, Jefferson, Love, Murray and 2 more	48 min
May 18, 8:16 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain	44 min
May 18, 8:19 PM CDT	Flash Flood Warning	OUN	Cotton, Jefferson, Stephens	3 hr
May 18, 8:24 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie	51 min
May 18, 8:33 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	42 min
May 18, 8:37 PM CDT	Severe Thunderstorm Warning	OUN	Cotton, Tillman	53 min
May 18, 8:45 PM CDT	Special Weather Statement	OUN	Grant	30 min
May 18, 8:45 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Oklahoma, Pottawatomie	30 min
May 18, 8:53 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Coal, Garvin, Hughes, Johnston, Murray and 1 more	52 min
May 18, 8:56 PM CDT	Special Weather Statement	OUN	Alfalfa	49 min
May 18, 8:58 PM CDT	Special Weather Statement	OUN	Lincoln, Pottawatomie, Seminole	47 min
May 18, 9:08 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Jefferson	52 min
May 18, 9:11 PM CDT	Areal Flood Advisory	OUN	Carter, Murray	3 hr
May 18, 9:14 PM CDT	Severe Thunderstorm Warning	OUN	Hughes, Seminole	46 min
May 18, 9:17 PM CDT	Severe Thunderstorm Warning	OUN	Cotton, Jefferson, Stephens	43 min
May 18, 9:33 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Hughes, Pontotoc	27 min
May 18, 9:39 PM CDT	Special Weather Statement	OUN	Grant	36 min
May 18, 9:40 PM CDT	Tornado Warning	OUN	Jefferson	20 min
May 18, 9:48 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Coal, Johnston, Marshall, Murray, Pontotoc	42 min
May 18, 9:51 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Jefferson, Love	39 min
May 18, 9:55 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Hughes	35 min
May 18, 9:59 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Stephens	46 min
May 18, 10:14 PM CDT	Areal Flood Advisory	OUN	Carter, Coal, Hughes, Johnston, Murray, Pontotoc	3 hr
May 18, 10:21 PM CDT	Special Weather Statement	OUN	Grant	24 min
May 18, 10:26 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Johnston, Murray	49 min
May 18, 10:40 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Love	50 min
May 18, 10:50 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Johnston, Pontotoc	40 min
May 18, 10:54 PM CDT	Tornado Warning	OUN	Carter, Love	36 min
May 18, 11:06 PM CDT	Tornado Warning	OUN	Coal, Johnston, Pontotoc	11 min
May 18, 11:20 PM CDT	Tornado Warning	OUN	Love, Marshall	25 min
May 18, 11:26 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Johnston	49 min
May 18, 11:32 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Johnston, Marshall	43 min
May 18, 11:41 PM CDT	Tornado Warning	OUN	Johnston, Marshall	34 min
May 19, 12:04 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Johnston	23 min
May 19, 12:35 AM CDT	Special Weather Statement	OUN	Canadian	25 min
May 19, 1:05 AM CDT	Special Weather Statement	OUN	Canadian	25 min
May 19, 1:13 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Logan, Oklahoma	47 min
May 19, 1:55 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Kingfisher, Lincoln, Logan and 2 more	50 min
May 19, 2:16 AM CDT	River Flood Warning	OUN	Pottawatomie, Seminole	23 hr
May 19, 2:26 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Canadian, Kingfisher, Lincoln, Logan, Oklahoma and 1 more	49 min
May 19, 2:32 AM CDT	Areal Flood Advisory	OUN	Logan, Oklahoma	118 min
May 19, 3:15 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Logan, Payne	45 min
May 19, 3:37 AM CDT	Areal Flood Advisory	OUN	Lincoln, Logan, Payne	113 min
May 19, 6:44 AM CDT	Special Weather Statement	OUN	Tillman	31 min
May 19, 6:57 AM CDT	Special Weather Statement	OUN	Tillman	33 min
May 19, 8:04 AM CDT	Special Weather Statement	OUN	Caddo	41 min
May 19, 8:31 AM CDT	Special Weather Statement	OUN	Canadian, Kingfisher	44 min
May 19, 8:51 AM CDT	Special Weather Statement	OUN	Jefferson	39 min
May 19, 9:22 AM CDT	Special Weather Statement	OUN	Comanche, Cotton, Tillman	38 min
May 19, 9:27 AM CDT	Special Weather Statement	OUN	Garfield, Kingfisher, Major	48 min
May 19, 9:30 AM CDT	Special Weather Statement	OUN	Carter, Garvin, Jefferson, Murray, Pontotoc	45 min
May 19, 9:45 AM CDT	Special Weather Statement	OUN	Cleveland, Oklahoma	30 min
May 19, 10:03 AM CDT	Special Weather Statement	OUN	Alfalfa, Garfield, Grant	42 min
May 19, 10:07 AM CDT	River Flood Warning	OUN	Major, Woods, Woodward	15 hr
May 19, 11:15 AM CDT	Special Weather Statement	OUN	Hughes	45 min
May 19, 11:19 AM CDT	Special Weather Statement	OUN	Cleveland, Oklahoma	26 min
May 19, 12:05 PM CDT	Special Weather Statement	OUN	Cotton	25 min
May 19, 12:44 PM CDT	Special Weather Statement	OUN	Garvin	46 min
May 19, 2:07 PM CDT	Special Weather Statement	OUN	Cotton, Jefferson	38 min
May 19, 2:53 PM CDT	Special Weather Statement	OUN	Cotton	67 min
May 19, 3:00 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson, Love	45 min
May 19, 3:03 PM CDT	Severe Thunderstorm Warning	OUN	Tillman	42 min
May 19, 3:28 PM CDT	Special Weather Statement	OUN	Garvin	32 min
May 19, 3:39 PM CDT	Special Weather Statement	OUN	Cleveland	36 min
May 19, 3:56 PM CDT	Special Weather Statement	OUN	Carter	34 min
May 19, 4:03 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Murray	42 min
May 19, 4:19 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie, Seminole	23 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2017 Severe Thunderstorm Warnings in Texas, 2017 Every severe thunderstorm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.