Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 573, NWS Norman, OK

November 10, 2021Payne County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Nov 10, 2021, 6:18 PM CST for Payne County, Oklahoma. It was in force for 27 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
Nov 10, 2021, 6:18 PM CST (00:18 UTC)
Expired
Nov 10, 2021, 6:45 PM CST
In force
27 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Damage threat
Considerable
Hail
1.0 in
Wind
70.0 mph

County Payne County, OK

The radar

The Norman radar (KTLX), 91 km from the middle of the area, began a volume at 00:19 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.

IssuedProductOfficeLasted
Nov 10, 3:26 PM CSTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 0.3 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2021-11-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 964 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2021-11-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 186 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
964 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
884 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
186 m²/s²
0-3 km storm-relative helicity
206 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.4

Open this sounding in Storm Lab

The text

As transmitted.

001 
WUUS54 KOUN 110018
SVROUN
OKC119-110045-
/O.NEW.KOUN.SV.W.0573.211111T0018Z-211111T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
618 PM CST Wed Nov 10 2021

The National Weather Service in Norman has issued a

* Severe Thunderstorm Warning for...
  Southeastern Payne County in central Oklahoma...

* Until 645 PM CST.

* At 617 PM CST, a severe thunderstorm was located 4 miles south of
  Yale, moving east at 30 mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Broadcast media reported wind gust of 67 MPH north of 
           Cushion.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* Locations impacted include...
  Cushing, Yale, Ripley and Quay. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3598 9695 3616 9679 3616 9662 3598 9662
TIME...MOT...LOC 0017Z 261DEG 27KT 3604 9671 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH

$$

Bunker

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 10, 6:15 PM CSTSpecial Weather StatementOUNGarvin30 min
Nov 10, 6:20 PM CSTSevere Thunderstorm WarningOUNCarter, Garvin, Stephens40 min
Nov 10, 6:24 PM CSTSevere Thunderstorm WarningOUNLincoln, Logan, Oklahoma, Payne, Pottawatomie51 min
Nov 10, 6:36 PM CSTSpecial Weather StatementOUNCleveland, McClain24 min
Nov 10, 6:40 PM CSTTornado WarningOUNCarter, Garvin, Stephens27 min
Nov 10, 6:42 PM CSTSevere Thunderstorm WarningOUNJefferson21 min
Nov 10, 7:10 PM CSTSevere Thunderstorm WarningOUNCleveland, Lincoln, Oklahoma, Pottawatomie, Seminole50 min
Nov 10, 7:11 PM CSTSpecial Weather StatementOUNCarter34 min
Nov 10, 7:13 PM CSTSpecial Weather StatementOUNGarvin32 min
Nov 10, 7:17 PM CSTSpecial Weather StatementOUNBryan13 min
Nov 10, 7:18 PM CSTSpecial Weather StatementOUNPontotoc27 min
Nov 10, 7:31 PM CSTSpecial Weather StatementOUNBryan29 min
Nov 10, 7:33 PM CSTSpecial Weather StatementOUNBryan27 min
Nov 10, 7:41 PM CSTSevere Thunderstorm WarningOUNBryan19 min
Nov 10, 7:46 PM CSTTornado WarningOUNCarter, Murray27 min
Nov 10, 8:16 PM CSTSpecial Weather StatementOUNCarter29 min
Nov 10, 8:28 PM CSTSpecial Weather StatementOUNCoal32 min
Nov 10, 8:50 PM CSTSpecial Weather StatementOUNAtoka25 min
Nov 10, 8:56 PM CSTSpecial Weather StatementOUNAtoka34 min
Nov 10, 9:13 PM CSTSpecial Weather StatementOUNAtoka32 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2021Every 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.