Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 145, NWS Norman, OK

May 3, 2021Carter County, Johnston County, Murray County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 3, 2021, 5:53 PM CDT for Carter County, Johnston County, Murray County, Oklahoma. It was in force for 67 min. 1 report 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 3, 2021, 5:53 PM CDT (22:53 UTC)
Expired: May 3, 2021, 7:00 PM CDT
In force: 67 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Carter County, OK, Johnston County, OK, Murray County, OK

The radar

The Norman radar (KTLX), 117 km from the middle of the area, began a volume at 22:55 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.

What was reported inside it

Time	Report	Where	Remark
May 3, 6:56 PM CDT	HAIL 1	5 Ne Gene Autry, OK	PICTURES OF QUARTER SIZED HAIL. TIME IS ESTIMATED.

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 3, 3:48 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 10.9 hours before the alert went out and 108 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: 993 J/kg
Mixed-layer CIN: -487 J/kg
Mixed-layer LCL: 923 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: -30 m²/s²
0-3 km storm-relative helicity: 18 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

655 
WUUS54 KOUN 032253
SVROUN
OKC019-069-099-040000-
/O.NEW.KOUN.SV.W.0145.210503T2253Z-210504T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
553 PM CDT Mon May 3 2021

The National Weather Service in Norman has issued a

* Severe Thunderstorm Warning for...
  Northwestern Johnston County in southeastern Oklahoma...
  East central Carter County in southern Oklahoma...
  Southeastern Murray County in southern Oklahoma...

* Until 700 PM CDT.

* At 553 PM CDT, a severe thunderstorm was located near Springer,
  moving east at 20 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Tishomingo, Springer, Ravia, Mill Creek, Dougherty, Gene Autry and
  Reagan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms.

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

&&

LAT...LON 3423 9717 3437 9715 3447 9681 3439 9667
      3423 9670
TIME...MOT...LOC 2253Z 248DEG 17KT 3429 9709 

HAIL...1.50IN
WIND...60MPH
 
$$

Mahale

1 follow-up statement

094 
WWUS54 KOUN 032320
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
620 PM CDT Mon May 3 2021

OKC019-069-099-040000-
/O.CON.KOUN.SV.W.0145.000000T0000Z-210504T0000Z/
Johnston OK-Carter OK-Murray OK-
620 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR NORTHWESTERN JOHNSTON...EAST CENTRAL CARTER AND SOUTHEASTERN
MURRAY COUNTIES...

At 620 PM CDT, a severe thunderstorm was located over Gene Autry,
moving northeast at 35 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...
Tishomingo, Springer, Ravia, Mill Creek, Dougherty, Gene Autry and
Reagan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms.

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

&&

LAT...LON 3423 9717 3437 9715 3447 9681 3439 9667
      3423 9670
TIME...MOT...LOC 2320Z 243DEG 30KT 3428 9703 

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

Mahale

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 4:56 PM CDT	Special Weather Statement	OUN	Harper	49 min
May 3, 5:05 PM CDT	Special Weather Statement	OUN	Carter	25 min
May 3, 5:09 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Johnston, Love, Murray	51 min
May 3, 5:24 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Johnston, Murray	51 min
May 3, 5:49 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Murray	26 min
May 3, 5:50 PM CDT	Special Weather Statement	OUN	Harper	25 min
May 3, 6:00 PM CDT	Areal Flood Advisory	OUN	Carter, Garvin, Johnston, Love, Murray, Pontotoc	5 hr
May 3, 6:02 PM CDT	Severe Thunderstorm Warning	OUN	Johnston, Murray, Pontotoc	58 min
May 3, 6:09 PM CDT	Special Weather Statement	OUN	Love	36 min
May 3, 6:12 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, McClain, Murray	33 min
May 3, 6:19 PM CDT	Severe Thunderstorm Warning	OUN	Love	26 min
May 3, 6:25 PM CDT	Special Weather Statement	OUN	Hughes	35 min
May 3, 6:33 PM CDT	Severe Thunderstorm Warning	OUN	Coal, Johnston, Pontotoc	42 min
May 3, 6:35 PM CDT	Severe Thunderstorm Warning	OUN	Coal, Hughes, Pontotoc	40 min
May 3, 6:38 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Johnston, Murray	37 min
May 3, 6:39 PM CDT	Special Weather Statement	OUN	Johnston	36 min
May 3, 6:44 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Love, Marshall	8 min
May 3, 6:50 PM CDT	Flash Flood Warning	OUN	Carter, Murray	3 hr
May 3, 6:56 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Johnston, Murray, Pontotoc	49 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.