Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 79, NWS Tulsa, OK

May 3, 2021Pawnee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 3, 2021, 11:26 PM CDT for Pawnee County, Oklahoma. It was in force for 49 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, 11:26 PM CDT (04:26 UTC)
Expired: May 4, 2021, 12:15 AM CDT
In force: 49 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 1.75 in
Wind: 50.0 mph

County Pawnee County, OK

The radar

The Vance AFB radar (KVNX), 119 km from the middle of the area, began a volume at 04:29 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, 11:46 PM CDT	HAIL 1.5	1 W Pawnee, OK	SOCIAL MEDIA PICTURE SHOWS A PICTURE OF A HAIL STONE ESTIMATED TO BE THE SIZE OF A PING PONG BALL. TIME AND LOCATION ESTIMATED FROM RADAR.

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

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 4.4 hours before the alert went out and 278 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: 1558 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 972 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 150 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

As transmitted.

663 
WUUS54 KTSA 040426
SVRTSA
OKC117-040515-
/O.NEW.KTSA.SV.W.0079.210504T0426Z-210504T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
1126 PM CDT Mon May 3 2021

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  Western Pawnee County in northeastern Oklahoma...

* Until 1215 AM CDT.

* At 1125 PM CDT, a severe thunderstorm was located 4 miles east of
  Glencoe, moving north at 35 mph.

  HAZARD...Golf ball size hail.

  SOURCE...Radar indicated.

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

* Locations in or near the path include...
  Pawnee...                         Ralston...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!

&&

LAT...LON 3646 9697 3646 9693 3647 9691 3647 9688
      3656 9680 3657 9677 3655 9674 3650 9672
      3649 9671 3616 9674 3616 9682 3625 9682
      3625 9692 3633 9693 3633 9699 3651 9702
TIME...MOT...LOC 0425Z 181DEG 31KT 3621 9685 

HAIL...1.75IN
WIND...<50MPH
 
$$

1 follow-up statement

477 
WWUS54 KTSA 040443
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1143 PM CDT Mon May 3 2021

OKC117-040515-
/O.CON.KTSA.SV.W.0079.000000T0000Z-210504T0515Z/
Pawnee OK-
1143 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT
FOR WESTERN PAWNEE COUNTY...

At 1143 PM CDT, a severe thunderstorm was located over Pawnee, moving
north at 25 mph.

HAZARD...Half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations in or near the path include...
Pawnee...                         Ralston...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.

&&

LAT...LON 3624 9673 3627 9692 3633 9693 3633 9695
      3646 9694 3646 9693 3647 9691 3647 9688
      3656 9680 3657 9677 3655 9674 3650 9672
      3649 9671
TIME...MOT...LOC 0443Z 188DEG 23KT 3633 9683 

HAIL...1.25IN
WIND...<50MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 7:04 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	41 min
May 3, 7:15 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	45 min
May 3, 7:19 PM CDT	Special Weather Statement	TSA	McIntosh	26 min
May 3, 7:27 PM CDT	Tornado Warning	TSA	Pittsburg	33 min
May 3, 7:37 PM CDT	Special Weather Statement	TSA	Muskogee	23 min
May 3, 7:39 PM CDT	Flash Flood Warning	TSA	Pittsburg	3 hr
May 3, 7:42 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg	48 min
May 3, 7:45 PM CDT	Tornado Warning	TSA	Pittsburg	27 min
May 3, 7:49 PM CDT	River Flood Advisory	TSA	Cherokee	12 hr
May 3, 8:01 PM CDT	Special Weather Statement	TSA	Muskogee	29 min
May 3, 8:05 PM CDT	Tornado Warning	TSA	Latimer	25 min
May 3, 8:07 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	34 min
May 3, 8:12 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	36 min
May 3, 8:18 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, Pittsburg	42 min
May 3, 8:28 PM CDT	Special Weather Statement	TSA	Sequoyah	32 min
May 3, 8:44 PM CDT	Special Weather Statement	TSA	Okfuskee	31 min
May 3, 8:47 PM CDT	Special Weather Statement	TSA	Pushmataha	28 min
May 3, 8:52 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Sequoyah	53 min
May 3, 8:53 PM CDT	Special Weather Statement	TSA	Adair, Cherokee	37 min
May 3, 8:55 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg, Pushmataha	32 min
May 3, 9:02 PM CDT	Special Weather Statement	TSA	Creek	28 min
May 3, 9:02 PM CDT	Tornado Warning	TSA	Pushmataha	28 min
May 3, 9:04 PM CDT	Special Weather Statement	TSA	Choctaw	26 min
May 3, 9:18 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, LeFlore, Sequoyah	57 min
May 3, 9:33 PM CDT	Flash Flood Warning	TSA	Haskell, Latimer, LeFlore, Pittsburg	3 hr
May 3, 9:38 PM CDT	Tornado Warning	TSA	Sequoyah	37 min
May 3, 9:42 PM CDT	Areal Flood Advisory	TSA	Creek, Tulsa	3 hr
May 3, 9:57 PM CDT	Special Weather Statement	TSA	LeFlore	33 min
May 3, 9:59 PM CDT	Special Weather Statement	TSA	LeFlore	31 min
May 3, 10:12 PM CDT	Flash Flood Warning	TSA	LeFlore, Sequoyah	3 hr
May 3, 10:15 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	45 min
May 3, 10:19 PM CDT	Flash Flood Warning	TSA	Adair	3 hr
May 3, 10:21 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	39 min
May 4, 1:41 AM CDT	Special Weather Statement	TSA	Okmulgee	34 min
May 4, 2:27 AM CDT	Special Weather Statement	TSA	Pittsburg	33 min
May 4, 2:28 AM CDT	Special Weather Statement	TSA	McIntosh	32 min
May 4, 2:50 AM CDT	Special Weather Statement	TSA	McIntosh, Pittsburg	25 min
May 4, 8:08 AM CDT	River Flood Warning	TSA	Cherokee	29 hr
May 4, 8:15 AM CDT	River Flood Warning	TSA	Adair, Delaware	13 hr
May 4, 8:15 AM CDT	River Flood Advisory	TSA	Adair, Cherokee, Delaware	24 hr

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.