Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 113, NWS Tulsa, OK

April 28, 20205 counties in Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 28, 2020, 5:19 PM CDT for 5 counties in Oklahoma. It was in force for 56 min. 4 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: Apr 28, 2020, 5:19 PM CDT (22:19 UTC)
Expired: Apr 28, 2020, 6:15 PM CDT
In force: 56 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Craig County, OK, Nowata County, OK, Ottawa County, OK, Rogers County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 55 km from the middle of the area, began a volume at 22:22 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
Apr 28, 5:20 PM CDT	TSTM WND DMG	Lenapah, OK	* 1 INJ * WOMEN WAS INJURED BY FLYING GLASS AFTER LARGE TREE FELL ON CAR.
Apr 28, 5:30 PM CDT	HAIL 0.75	5 N Ochelata, OK
Apr 28, 5:39 PM CDT	TSTM WND GST 60	Ramona, OK	SOCIAL MEDIA POST SHOWS VIDEO OF STORM WITH THE POST DESCRIBING WIND GUSTS UP TO 60MPH.
Apr 28, 5:41 PM CDT	HAIL 0.75	4 W Nowata, OK

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
Apr 28, 3:18 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 10.3 hours before the alert went out and 147 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: 55 J/kg
Mixed-layer CIN: -231 J/kg
Mixed-layer LCL: 1021 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 369 m²/s²
0-3 km storm-relative helicity: 342 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

As transmitted.

975 
WUUS54 KTSA 282219
SVRTSA
OKC035-105-115-131-147-282315-
/O.NEW.KTSA.SV.W.0113.200428T2219Z-200428T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
519 PM CDT Tue Apr 28 2020

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  Craig County in northeastern Oklahoma...
  Northern Rogers County in northeastern Oklahoma...
  Northwestern Ottawa County in northeastern Oklahoma...
  Southern Washington County in northeastern Oklahoma...
  Nowata County in northeastern Oklahoma...

* Until 615 PM CDT.

* At 519 PM CDT, severe thunderstorms were located along a line
  extending from 5 miles east of South Coffeyville to Ochelata,
  moving southeast at 30 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 in or near the path include...
  Bartlesville...                   Nowata...
  Chelsea...                        Oologah...
  South Coffeyville...              Welch...
  Ramona...                         Ochelata...
  Delaware...                       Foyil...
  Bluejacket...                     Lenapah...
  Talala...                         New Alluwe...
  Watova...                         White Oak...
  Hollow...                         Centrailia...
  Pyramid Corners...                Bushyhead...

A Tornado Watch remains in effect until 1100 PM CDT for northeastern
Oklahoma.

LAT...LON 3680 9501 3651 9534 3651 9544 3642 9544
      3637 9549 3652 9600 3667 9600 3700 9564
      3700 9489
TIME...MOT...LOC 2219Z 295DEG 27KT 3701 9552 3659 9598 

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 2:10 PM CDT	River Flood Warning	TSA	LeFlore	18 hr
Apr 28, 2:27 PM CDT	River Flood Advisory	TSA	Cherokee	18 hr
Apr 28, 3:56 PM CDT	Special Weather Statement	TSA	Osage	19 min
Apr 28, 4:07 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	53 min
Apr 28, 4:31 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Washington	59 min
Apr 28, 4:39 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	51 min
Apr 28, 4:54 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Osage, Rogers, Washington	66 min
Apr 28, 4:57 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Washington	63 min
Apr 28, 5:04 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	41 min
Apr 28, 5:07 PM CDT	Tornado Warning	TSA	Nowata	38 min
Apr 28, 5:23 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	52 min
Apr 28, 5:36 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Rogers, Tulsa, Washington	39 min
Apr 28, 5:44 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa, Rogers	61 min
Apr 28, 5:45 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	30 min
Apr 28, 5:51 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee	39 min
Apr 28, 5:53 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Rogers, Tulsa, Washington	52 min
Apr 28, 6:01 PM CDT	Tornado Warning	TSA	Osage, Tulsa	29 min
Apr 28, 6:02 PM CDT	Tornado Warning	TSA	Mayes, Rogers	28 min
Apr 28, 6:10 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Rogers, Tulsa, Washington	50 min
Apr 28, 6:15 PM CDT	Special Weather Statement	TSA	Okmulgee	30 min
Apr 28, 6:16 PM CDT	Tornado Warning	TSA	Creek, Tulsa	29 min
Apr 28, 6:18 PM CDT	Tornado Warning	TSA	Delaware, Mayes, Rogers	42 min
Apr 28, 6:23 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Mayes, Okmulgee, Rogers, Tulsa, Wagoner	52 min
Apr 28, 6:31 PM CDT	Tornado Warning	TSA	Mayes	29 min
Apr 28, 6:33 PM CDT	Areal Flood Advisory	TSA	Creek, Mayes, Osage, Rogers, Tulsa, Wagoner	117 min
Apr 28, 6:37 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Craig, Delaware, Mayes, Ottawa, Rogers and 1 more	53 min
Apr 28, 6:42 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Creek, Mayes, Muskogee, Okfuskee, Okmulgee and 3 more	63 min
Apr 28, 6:56 PM CDT	Flash Flood Warning	TSA	Tulsa	3 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2020 Every severe thunderstorm warning in 2020

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.