Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 356, NWS Norman, OK

June 26, 20215 counties in Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 26, 2021, 3:52 AM CDT for 5 counties in Oklahoma. It was in force for 38 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: Jun 26, 2021, 3:52 AM CDT (08:52 UTC)
Expired: Jun 26, 2021, 4:30 AM CDT
In force: 38 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Cleveland County, OK, Lincoln County, OK, Logan County, OK, Oklahoma County, OK, Pottawatomie County, OK

The radar

The Norman radar (KTLX), 21 km from the middle of the area, began a volume at 08:55 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
Jun 25, 11:59 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 8.9 hours before the alert went out and 299 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: 426 J/kg
Mixed-layer CIN: -119 J/kg
Mixed-layer LCL: 1809 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

As transmitted.

890 
WUUS54 KOUN 260852
SVROUN
OKC027-081-083-109-125-260930-
/O.NEW.KOUN.SV.W.0356.210626T0852Z-210626T0930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
352 AM CDT Sat Jun 26 2021

The National Weather Service in Norman has issued a

* Severe Thunderstorm Warning for...
  Western Lincoln County in central Oklahoma...
  Oklahoma County in central Oklahoma...
  Northern Cleveland County in central Oklahoma...
  Southern Logan County in central Oklahoma...
  Northwestern Pottawatomie County in central Oklahoma...

* Until 430 AM CDT.

* At 352 AM CDT, severe thunderstorms were located along a line
  extending from near Guthrie to near Edmond to near Oklahoma City,
  moving east at 35 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Oklahoma City, northeastern Norman, Edmond, Moore, Midwest City,
  Del City, Guthrie, Bethany, Choctaw, Warr Acres, The Village,
  Harrah, McLoud, Spencer, Nichols Hills, Jones, Nicoma Park, Luther,
  Cashion and Wellston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3526 9713 3533 9766 3534 9767 3590 9767
      3591 9699 3562 9694
TIME...MOT...LOC 0852Z 274DEG 31KT 3585 9747 3565 9745 3542 9763 

HAIL...<.75IN
WIND...70MPH
 
$$

Mahale

2 follow-up statements

957 
WWUS54 KOUN 260913
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
413 AM CDT Sat Jun 26 2021

OKC027-081-083-109-125-260930-
/O.CON.KOUN.SV.W.0356.000000T0000Z-210626T0930Z/
Lincoln OK-Oklahoma OK-Cleveland OK-Logan OK-Pottawatomie OK-
413 AM CDT Sat Jun 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM CDT
FOR WESTERN LINCOLN...OKLAHOMA...NORTHERN CLEVELAND...SOUTHEASTERN
LOGAN AND NORTHWESTERN POTTAWATOMIE COUNTIES...

At 413 AM CDT, severe thunderstorms were located along a line
extending from 3 miles east of Meridian to near Luther to near
Oklahoma City, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Oklahoma City, northeastern Norman, Edmond, Moore, Midwest City, Del
City, Guthrie, Bethany, Choctaw, Warr Acres, The Village, Harrah,
McLoud, Spencer, Nichols Hills, Jones, Nicoma Park, Luther, Wellston
and Valley Brook.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3526 9713 3533 9766 3534 9767 3553 9767
      3563 9748 3590 9739 3591 9699 3562 9694
TIME...MOT...LOC 0913Z 274DEG 34KT 3583 9719 3563 9717 3534 9740 

HAIL...<.75IN
WIND...60MPH
 
$$

Mahale

099 
WWUS54 KOUN 260927
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
427 AM CDT Sat Jun 26 2021

OKC027-081-083-109-125-260936-
/O.EXP.KOUN.SV.W.0356.000000T0000Z-210626T0930Z/
Lincoln OK-Oklahoma OK-Cleveland OK-Logan OK-Pottawatomie OK-
427 AM CDT Sat Jun 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN LINCOLN...OKLAHOMA...
NORTHERN CLEVELAND...SOUTHEASTERN LOGAN AND NORTHWESTERN POTTAWATOMIE
COUNTIES WILL EXPIRE AT 430 AM CDT...
             
The storms which prompted the warning have weakened below severe
limits, therefore the warning will be allowed to expire.  However
gusty winds and heavy rain are still possible with these
thunderstorms.

LAT...LON 3526 9713 3533 9766 3534 9767 3553 9767
      3563 9748 3590 9739 3591 9699 3562 9694
TIME...MOT...LOC 0926Z 274DEG 31KT 3582 9705 3562 9703 3533 9726 

$$

Mahale

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 7:18 PM CDT	Special Weather Statement	OUN	Ellis, Woodward	42 min
Jun 25, 7:59 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	46 min
Jun 25, 8:08 PM CDT	Special Weather Statement	OUN	Dewey, Woodward	52 min
Jun 25, 8:28 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Dewey, Ellis, Roger Mills, Washita	47 min
Jun 25, 8:52 PM CDT	Special Weather Statement	OUN	Alfalfa, Blaine, Dewey, Major, Woodward	38 min
Jun 25, 9:07 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey, Major, Woodward	38 min
Jun 25, 9:43 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey, Kingfisher, Major	33 min
Jun 25, 10:06 PM CDT	Special Weather Statement	OUN	Grant	39 min
Jun 25, 10:41 PM CDT	Special Weather Statement	OUN	Blaine, Garfield, Kingfisher, Logan, Noble	49 min
Jun 25, 10:42 PM CDT	Special Weather Statement	OUN	Woodward	48 min
Jun 25, 11:21 PM CDT	Special Weather Statement	OUN	Woodward	24 min
Jun 25, 11:25 PM CDT	Special Weather Statement	OUN	Ellis, Harper, Woodward	50 min
Jun 25, 11:44 PM CDT	Areal Flood Advisory	OUN	Dewey, Ellis, Woodward	6 hr
Jun 25, 11:46 PM CDT	Special Weather Statement	OUN	Roger Mills	44 min
Jun 26, 12:13 AM CDT	Flash Flood Warning	OUN	Dewey, Ellis, Woodward	4 hr
Jun 26, 12:26 AM CDT	Special Weather Statement	OUN	Beckham, Custer, Dewey	49 min
Jun 26, 12:47 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer, Harmon, Roger Mills	43 min
Jun 26, 1:06 AM CDT	Areal Flood Advisory	OUN	Blaine, Dewey, Major, Woodward	4 hr
Jun 26, 1:12 AM CDT	Special Weather Statement	OUN	Blaine, Custer, Dewey, Washita	48 min
Jun 26, 1:19 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Greer, Kiowa, Washita	41 min
Jun 26, 1:49 AM CDT	Areal Flood Advisory	OUN	Dewey, Ellis	3 hr
Jun 26, 1:55 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Custer, Kiowa, Washita	50 min
Jun 26, 2:40 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Grady, Kingfisher	50 min
Jun 26, 3:14 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Logan, Oklahoma	46 min
Jun 26, 3:39 AM CDT	Areal Flood Advisory	OUN	Blaine, Garfield, Kingfisher, Logan, Major, Noble and 1 more	3 hr
Jun 26, 4:29 AM CDT	Special Weather Statement	OUN	Cleveland, Lincoln, Pottawatomie	46 min
Jun 26, 4:44 AM CDT	Areal Flood Advisory	OUN	Canadian, Cleveland, McClain, Oklahoma	6 hr
Jun 26, 7:32 AM CDT	Flash Flood Warning	OUN	Caddo, Comanche, Grady	4 hr
Jun 26, 2:04 PM CDT	River Flood Warning	OUN	Cleveland, McClain	46 hr
Jun 26, 2:05 PM CDT	River Flood Warning	OUN	Lincoln, Oklahoma, Pottawatomie	39 hr
Jun 26, 2:05 PM CDT	River Flood Advisory	OUN	Cleveland, McClain, Pottawatomie	31 hr
Jun 26, 2:06 PM CDT	River Flood Warning	OUN	Pottawatomie, Seminole	19 hr
Jun 26, 2:13 PM CDT	River Flood Watch	OUN	Garvin	13 hr
Jun 26, 3:36 PM CDT	Special Weather Statement	OUN	Comanche	24 min
Jun 26, 3:53 PM CDT	Special Weather Statement	OUN	Jackson	37 min
Jun 26, 4:00 PM CDT	Special Weather Statement	OUN	Comanche	30 min
Jun 26, 4:17 PM CDT	Special Weather Statement	OUN	Jackson	28 min
Jun 26, 4:27 PM CDT	Special Weather Statement	OUN	Comanche	48 min
Jun 26, 4:32 PM CDT	Areal Flood Advisory	OUN	Comanche	3 hr
Jun 26, 4:48 PM CDT	Special Weather Statement	OUN	Tillman	42 min
Jun 26, 4:48 PM CDT	Special Weather Statement	OUN	Jackson	42 min
Jun 26, 4:55 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Kiowa, Tillman	50 min
Jun 26, 4:55 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Grady	39 min
Jun 26, 5:13 PM CDT	Special Weather Statement	OUN	Kiowa	32 min
Jun 26, 5:20 PM CDT	Special Weather Statement	OUN	Ellis	25 min
Jun 26, 5:37 PM CDT	Special Weather Statement	OUN	Tillman	38 min
Jun 26, 5:48 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Kiowa, Tillman	42 min
Jun 26, 5:55 PM CDT	Special Weather Statement	OUN	Custer	35 min
Jun 26, 6:13 PM CDT	Areal Flood Advisory	OUN	Caddo	3 hr
Jun 26, 6:19 PM CDT	Areal Flood Advisory	OUN	Blaine, Caddo, Custer	3 hr
Jun 26, 6:20 PM CDT	Severe Thunderstorm Warning	OUN	Blaine	40 min
Jun 26, 6:31 PM CDT	Special Weather Statement	OUN	Tillman	29 min
Jun 26, 6:43 PM CDT	Areal Flood Advisory	OUN	Comanche, Cotton, Tillman	3 hr
Jun 26, 6:45 PM CDT	Severe Thunderstorm Warning	OUN	Blaine	45 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2021 Every severe thunderstorm warning in 2021

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.