Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 310, NWS Norman, OK

May 29, 20125 counties in Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 29, 2012, 7:27 PM CDT for 5 counties in Oklahoma. It was in force for 63 min. 10 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 29, 2012, 7:27 PM CDT (00:27 UTC)
Expired: May 29, 2012, 8:30 PM CDT
In force: 63 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

Counties Canadian County, OK, Cleveland County, OK, Grady County, OK, McClain County, OK, Oklahoma County, OK

The radar

The Norman radar (KTLX), 39 km from the middle of the area, began a volume at 00:26 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.

What was reported inside it

Time	Report	Where	Remark
May 29, 7:43 PM CDT	HAIL 1.25	7 Ne Chickasha, OK
May 29, 7:50 PM CDT	HAIL 2.75	3 W Newcastle, OK
May 29, 7:54 PM CDT	HAIL 1.75	Bridge Creek, OK	THE HAIL WAS REPORTED VIA TWITTER.
May 29, 7:59 PM CDT	HAIL 1	1 Sw Newcastle, OK
May 29, 8:13 PM CDT	TSTM WND GST 63	Will Rogers Airport, OK
May 29, 8:15 PM CDT	HAIL 1.75	6 Sw Oklahoma City, OK	THE HAIL WAS REPORTED AT 119TH AND PENN
May 29, 8:15 PM CDT	HAIL 2	6 Sw Oklahoma City, OK	REPORTED AT SW 89TH AND PENN AVENUE
May 29, 8:19 PM CDT	HAIL 3	Will Rogers Airport, OK	MEASURED BY NWS CERTIFIED WEATHER OBSERVER
May 29, 8:23 PM CDT	HAIL 1.75	3 Sw Oklahoma City, OK	RERORTED AT NW 16TH AND I-44
May 29, 8:32 PM CDT	HAIL 2.75	5 Sw Oklahoma City, OK	REPORTED AT SW 74TH AND MAY AVENUE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 29, 3:55 PM CDT	Severe Thunderstorm Watch	SPC	12 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 0.5 hours before the alert went out and 26 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: 2199 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 1607 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: 192 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 6.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

964 
WUUS54 KOUN 300027
SVROUN
OKC011-017-047-073-083-093-119-300130-
/O.NEW.KOUN.SV.W.0309.120530T0027Z-120530T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
727 PM CDT TUE MAY 29 2012

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN BLAINE COUNTY IN NORTHWEST OKLAHOMA...
  NORTHEASTERN CANADIAN COUNTY IN CENTRAL OKLAHOMA...
  GARFIELD COUNTY IN NORTHERN OKLAHOMA...
  KINGFISHER COUNTY IN CENTRAL OKLAHOMA...
  LOGAN COUNTY IN CENTRAL OKLAHOMA...
  MAJOR COUNTY IN NORTHWEST OKLAHOMA...
  EXTREME WEST CENTRAL PAYNE COUNTY IN CENTRAL OKLAHOMA...

* UNTIL 830 PM CDT

* AT 723 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED 
  A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL 
  UP TO BASEBALL SIZE AND DAMAGING WINDS IN EXCESS OF 65 MPH. THIS 
  STORM WAS LOCATED NEAR KINGFISHER...MOVING SOUTHEAST AT 20 MPH. 
  ANOTHER SEVERE THUNDERSTORM WAS LOCATED 5 MILES NORTH OF LACEY 
  WITH A THIRD SEVERE STORM LOCATED 5 MILES SOUTHWEST OF RINGWOOD.

* LOCATIONS IMPACTED INCLUDE...
  KINGFISHER...PIEDMONT...FAIRVIEW...HENNESSEY...CRESCENT...
  WAUKOMIS...OKEENE...OKARCHE...CASHION...LAHOMA...RINGWOOD...
  DRUMMOND...DOVER...MARSHALL...MULHALL...ORLANDO...AMES...MENO...
  CIMARRON CITY AND LOYAL. 

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 168 AND 175.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH NO WARNING.  GET 
TO A STORM SHELTER OR STURDY BUILDING IF A TORNADO APPROACHES.

&&

LAT...LON 3619 9746 3617 9745 3617 9742 3610 9727
      3572 9762 3572 9768 3566 9767 3551 9782
      3633 9856 3647 9827 3646 9816
TIME...MOT...LOC 0023Z 313DEG 17KT 3590 9796 

$$

MAXWELL

1 follow-up statement

766 
WWUS54 KOUN 300100
SVSOUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
800 PM CDT TUE MAY 29 2012

OKC017-027-051-087-109-300130-
/O.CON.KOUN.SV.W.0310.000000T0000Z-120530T0130Z/
MCCLAIN OK-OKLAHOMA OK-GRADY OK-CANADIAN OK-CLEVELAND OK-
800 PM CDT TUE MAY 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM 
CDT FOR EXTREME NORTHWESTERN MCCLAIN...EXTREME SOUTHWESTERN 
OKLAHOMA...NORTHEASTERN GRADY...EXTREME SOUTHEASTERN CANADIAN AND 
EXTREME NORTHWESTERN CLEVELAND COUNTIES...

AT 754 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO 
GOLF BALL SIZE AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM 
WAS LOCATED NEAR BRIDGE CREEK...MOVING NORTHEAST AT 35 MPH.  
GOLFBALL SIZE HAIL WAS REPORTED WITH THIS STORM AT BRIDG CREEK 
AROUND 755 PM 

LOCATIONS IMPACTED INCLUDE...
NORMAN...MOORE...NEWCASTLE...TUTTLE...BLANCHARD...AMBER...
MIDDLEBERG...TABLER AND BRIDGE CREEK. 

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 35 BETWEEN MILE MARKERS 107 AND 121.
 INTERSTATE 240 BETWEEN MILE MARKERS 1 AND 4.
 INTERSTATE 44 BETWEEN MILE MARKERS 85 AND 119.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE INSIDE A STURDY BUILDING UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3522 9739 3500 9785 3528 9797 3544 9760
      3546 9754
TIME...MOT...LOC 0054Z 236DEG 29KT 3524 9768 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 7:00 PM CDT	Severe Thunderstorm Warning	OUN	Tillman	60 min
May 29, 7:05 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Major, Woods	25 min
May 29, 7:14 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Tillman	40 min
May 29, 7:20 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Noble, Payne	40 min
May 29, 7:27 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Canadian, Garfield, Kingfisher, Logan, Major and 1 more	63 min
May 29, 7:31 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant, Kay, Noble, Woods	25 min
May 29, 8:05 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Kingfisher, Lincoln, Logan, McClain and 1 more	55 min
May 29, 8:26 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Canadian, Garfield, Kingfisher, Logan, Major and 1 more	64 min
May 29, 8:27 PM CDT	Tornado Warning	OUN	Canadian, Oklahoma	33 min
May 29, 8:50 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Canadian, Cleveland, Grady, Kingfisher, Lincoln and 4 more	40 min
May 29, 9:27 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Cleveland, Grady, Kingfisher and 2 more	63 min
May 29, 9:30 PM CDT	Special Weather Statement	OUN	Lincoln, Seminole	60 min
May 29, 9:44 PM CDT	Severe Thunderstorm Warning	OUN	Hughes, Pottawatomie, Seminole	61 min
May 29, 10:12 PM CDT	Areal Flood Advisory	OUN	Canadian, Cleveland, Grady, McClain, Oklahoma	3 hr
May 29, 10:16 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Garvin, Grady, McClain, Oklahoma	59 min
May 29, 10:29 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Cleveland, Grady, Kingfisher	61 min
May 29, 10:42 PM CDT	Severe Thunderstorm Warning	OUN	Coal, Hughes	33 min
May 29, 10:56 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Garvin, McClain, Murray, Pontotoc, Pottawatomie and 1 more	47 min
May 29, 10:58 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Garvin, Grady, Stephens	47 min
May 29, 11:29 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Grady	31 min
May 29, 11:32 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Johnston, Murray, Pontotoc	58 min
May 29, 11:46 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Comanche, Garvin, Grady, Jefferson, Murray and 1 more	44 min
May 30, 12:07 AM CDT	Special Weather Statement	OUN	Bryan, Johnston, Love, Marshall	23 min
May 30, 12:21 AM CDT	Special Weather Statement	OUN	Lincoln, Pottawatomie, Seminole	39 min
May 30, 12:28 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Comanche, Cotton, Grady, Jefferson, Love and 1 more	62 min
May 30, 12:41 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Bryan, Marshall	64 min
May 30, 1:07 AM CDT	Special Weather Statement	OUN	Coal, Hughes, Seminole	68 min
May 30, 1:14 AM CDT	Special Weather Statement	OUN	Marshall	31 min
May 30, 1:26 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Love, Marshall	64 min
May 30, 1:31 AM CDT	Special Weather Statement	OUN	Stephens	29 min
May 30, 1:35 AM CDT	Severe Thunderstorm Warning	OUN	Jefferson, Stephens	40 min
May 30, 2:23 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Jefferson, Love, Stephens	67 min
May 30, 5:04 AM CDT	Special Weather Statement	OUN	Oklahoma	11 min
May 30, 5:13 AM CDT	Areal Flood Advisory	OUN	Oklahoma	2 hr
May 30, 5:33 AM CDT	Severe Thunderstorm Warning	OUN	Oklahoma	57 min
May 30, 5:37 AM CDT	Special Weather Statement	OUN	Johnston	53 min
May 30, 5:46 AM CDT	Flash Flood Warning	OUN	Oklahoma	3 hr
May 30, 6:16 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Oklahoma	44 min
May 30, 6:48 AM CDT	Areal Flood Advisory	OUN	Canadian, Oklahoma	3 hr
May 30, 7:01 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Oklahoma	59 min
May 30, 7:01 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Love, Marshall	59 min
May 30, 7:45 AM CDT	Special Weather Statement	OUN	McClain, Murray	45 min
May 30, 5:35 PM CDT	Special Weather Statement	OUN	Washita	25 min
May 30, 6:06 PM CDT	Special Weather Statement	OUN	Caddo, Washita	24 min
May 30, 6:26 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Custer, Grady, Washita	64 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2012 Every severe thunderstorm warning in 2012

Sources

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