Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 413, NWS Norman, OK

May 19, 2017Lincoln County, Pottawatomie County, Seminole County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 19, 2017, 4:19 PM CDT for Lincoln County, Pottawatomie County, Seminole County, Oklahoma. It was in force for 23 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: May 19, 2017, 4:19 PM CDT (21:19 UTC)
Expired: May 19, 2017, 4:42 PM CDT
In force: 23 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Lincoln County, OK, Pottawatomie County, OK, Seminole County, OK

The radar

The Norman radar (KTLX), 63 km from the middle of the area, began a volume at 21:18 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 9.3 hours before the alert went out and 77 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: 525 J/kg
Mixed-layer CIN: -227 J/kg
Mixed-layer LCL: 813 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 295 m²/s²
0-3 km storm-relative helicity: 318 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

As transmitted.

764 
WUUS54 KOUN 192119
SVROUN
OKC081-125-133-192200-
/O.NEW.KOUN.SV.W.0413.170519T2119Z-170519T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
419 PM CDT FRI MAY 19 2017

The National Weather Service in Norman has issued a

* Severe Thunderstorm Warning for...
  Northern Seminole County in east central Oklahoma...
  Southeastern Lincoln County in central Oklahoma...
  Northeastern Pottawatomie County in central Oklahoma...

* Until 500 PM CDT

* At 419 PM CDT, a severe thunderstorm was located over Earlsboro,
  moving northeast at 55 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Shawnee, Seminole, Tecumseh, Prague, Earlsboro, Johnson,
  Brooksville, Little, Centerview and Harjo.

This includes Interstate 40 between mile markers 191 and 209.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3517 9673 3520 9696 3570 9663 3570 9662
      3540 9662 3540 9660 3541 9658 3539 9654
      3541 9654 3544 9657 3545 9655 3546 9654
      3543 9651 3543 9649 3546 9648 3545 9644
      3545 9645
TIME...MOT...LOC 2119Z 217DEG 49KT 3528 9679 

HAIL...1.00IN
WIND...60MPH
 
$$

30

1 follow-up statement

312 
WWUS54 KOUN 192142
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
442 PM CDT FRI MAY 19 2017

OKC081-125-133-192152-
/O.CAN.KOUN.SV.W.0413.000000T0000Z-170519T2200Z/
Seminole OK-Lincoln OK-Pottawatomie OK-
442 PM CDT FRI MAY 19 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN SEMINOLE...
SOUTHEASTERN LINCOLN AND NORTHEASTERN POTTAWATOMIE COUNTIES IS
CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.

LAT...LON 3517 9673 3520 9696 3570 9663 3570 9662
      3540 9662 3540 9660 3541 9658 3539 9654
      3541 9654 3544 9657 3545 9655 3546 9654
      3543 9651 3543 9649 3546 9648 3545 9644
      3545 9645
TIME...MOT...LOC 2140Z 217DEG 49KT 3553 9656 

$$

30

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, 1 hour earlier.

Area forecast discussion, May 19, 3:19 PM CDT, 1 hour before

Area Forecast Discussion
National Weather Service Norman OK
319 PM CDT Fri May 19 2017

.DISCUSSION...
Strong to severe thunderstorms continue to develop across mainly
western north Texas this afternoon. Other widely scattered
showers and a few storms are developing mainly north of a cold
front in northwest Oklahoma. Anvil debris and other light
showers are keeping parts of central and southern Oklahoma
relatively cool this afternoon.

Part of an outflow boundary that pushed well into north Texas has
been lifting slowly northward this afternoon. This boundary may
lift slowly into far southern Oklahoma later this afternoon,
however, western north Texas convection may keep this boundary
just south of the Red River.

Overall the risk of strong to severe storms will continue into
the evening, perhaps overnight, before a cold front sweeps across
southern Oklahoma by early Saturday morning.

Will continue the current Flood Watch through early Saturday
morning. It does appear that western north Texas and southern
Oklahoma will have the best opportunity for widespread showers
and thunderstorms through late this evening/early Saturday
morning.

Overall most of the weekend will be dry with below average
temperatures.

Another trough will approach the southern Plains around Monday of
next week. This will bring another opportunity for showers and
thunderstorms, especially across southern Oklahoma and western
north Texas.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  55  70  49  76 /  60  10   0   0
Hobart OK         51  72  48  78 /  40   0   0   0
Wichita Falls TX  57  74  51  81 /  80  10   0   0
Gage OK           46  67  46  77 /  20   0   0  10
Ponca City OK     53  67  45  75 /  50  10   0   0
Durant OK         65  75  53  80 /  90  50  10   0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch through Saturday morning for OKZ006>008-011>013-
     017>020-023>032-037>048-050>052.

TX...Flood Watch through Saturday morning for TXZ085-086-088>090.

&&

Hazardous weather outlook, May 19, 12:05 PM CDT, 4 hours 14 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, 3:48 PM CDT, 31 minutes before

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

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

0329 PM     HAIL             2 S PAULS VALLEY        34.71N 97.22W
05/19/2017  E1.00 INCH       GARVIN             OK   AMATEUR RADIO

&&

MAD

Local storm report, May 19, 3:50 PM CDT, 29 minutes before

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

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

0344 PM     HAIL             1 SE BURKBURNETT        34.08N 98.56W
05/19/2017  E1.75 INCH       WICHITA            TX   TRAINED SPOTTER

&&

MAD

Special weather statement, May 19, 3:56 PM CDT, 23 minutes before

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

OKZ041-045-046-192130-
Carter OK-Murray OK-Jefferson OK-
356 PM CDT FRI MAY 19 2017

...SIGNIFICANT WEATHER ADVISORY FOR western Carter...southwestern
Murray and northeastern Jefferson Counties Until 430 PM CDT...

AT 354 PM CDT, strong thunderstorms were along a line extending from
near Milo to 3 miles southeast of Ringling, moving northeast at 50
MPH.

HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 50 MPH...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3410 9769 3429 9759 3429 9756 3433 9756
      3451 9747 3451 9742 3441 9709 3408 9751
TIME...MOT...LOC 2054Z 217DEG 42KT 3435 9738 3414 9754

30

Local storm report, May 19, 4:06 PM CDT, 13 minutes before

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

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

0401 PM     HAIL             HEALDTON                34.23N 97.49W
05/19/2017  E1.50 INCH       CARTER             OK   EMERGENCY MNGR

&&

MAD

Local storm report, May 19, 4:10 PM CDT, 9 minutes before

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

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

0343 PM     HAIL             2 NE BURKBURNETT        34.11N 98.54W
05/19/2017  E1.50 INCH       WICHITA            TX   TRAINED SPOTTER

&&

MAD

Local storm report, May 19, 4:13 PM CDT, 6 minutes before

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

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

0345 PM     HAIL             BURKBURNETT             34.08N 98.56W
05/19/2017  E2.50 INCH       WICHITA            TX   PUBLIC

            PUBLIC REPORTED TENNIS BALL SIZED HAIL. PICTURE ON
            FACEBOOK.

&&

KURTZ

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, 3:36 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Jefferson, Tillman	54 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

Nearby

Severe Thunderstorm Warnings in Oklahoma, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.