Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 276, NWS Norman, OK

June 6, 2021Blaine County, Major County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 6, 2021, 3:31 PM CDT for Blaine County, Major County, Oklahoma. It was in force for 29 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
Jun 6, 2021, 3:31 PM CDT (20:31 UTC)
Expired
Jun 6, 2021, 4:00 PM CDT
In force
29 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Blaine County, OK, Major County, OK

The radar

The Vance AFB radar (KVNX), 68 km from the middle of the area, began a volume at 20:33 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 nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 8.5 hours before the alert went out and 230 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, Dodge City, at 12:00Z on 2021-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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, Dodge City, at 12:00Z on 2021-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.1939Sfc1 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
3 J/kg
Mixed-layer CIN
-306 J/kg
Mixed-layer LCL
911 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

219 
WUUS54 KOUN 062031
SVROUN
OKC011-093-062100-
/O.NEW.KOUN.SV.W.0276.210606T2031Z-210606T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
331 PM CDT Sun Jun 6 2021

The National Weather Service in Norman has issued a

* Severe Thunderstorm Warning for...
  Northern Blaine County in northwestern Oklahoma...
  Southeastern Major County in northwestern Oklahoma...

* Until 400 PM CDT.

* At 330 PM CDT, a severe thunderstorm was located near Okeene,
  moving northeast at 25 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...
  Fairview, Okeene, Canton, Longdale, Ames, Isabella, southeastern
  Canton Lake, Homestead and Southard.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3625 9816 3617 9820 3616 9821 3614 9821
      3610 9823 3597 9824 3598 9852 3609 9861
      3633 9840
TIME...MOT...LOC 2030Z 219DEG 22KT 3614 9831 

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

JP

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 1:46 PM CDTSpecial Weather StatementOUNCaddo44 min
Jun 6, 2:49 PM CDTSpecial Weather StatementOUNCaddo26 min
Jun 6, 3:13 PM CDTSpecial Weather StatementOUNCleveland47 min
Jun 6, 3:14 PM CDTSpecial Weather StatementOUNMajor31 min
Jun 6, 3:19 PM CDTSpecial Weather StatementOUNBlaine41 min
Jun 6, 3:20 PM CDTSpecial Weather StatementOUNPottawatomie25 min
Jun 6, 3:39 PM CDTSevere Thunderstorm WarningOUNBlaine, Caddo, Canadian51 min
Jun 6, 3:45 PM CDTSpecial Weather StatementOUNOklahoma45 min
Jun 6, 3:55 PM CDTSevere Thunderstorm WarningOUNBlaine, Garfield, Kingfisher, Major50 min
Jun 6, 3:57 PM CDTSpecial Weather StatementOUNBlaine48 min
Jun 6, 3:59 PM CDTSpecial Weather StatementOUNCanadian31 min
Jun 6, 4:05 PM CDTAreal Flood AdvisoryOUNBlaine3 hr
Jun 6, 4:08 PM CDTSevere Thunderstorm WarningOUNCanadian, Kingfisher35 min
Jun 6, 4:12 PM CDTSpecial Weather StatementOUNPontotoc48 min
Jun 6, 4:14 PM CDTSpecial Weather StatementOUNCarter, Murray61 min
Jun 6, 4:19 PM CDTAreal Flood AdvisoryOUNOklahoma3 hr
Jun 6, 4:32 PM CDTFlash Flood WarningOUNOklahoma3 hr
Jun 6, 4:37 PM CDTSpecial Weather StatementOUNKingfisher38 min
Jun 6, 4:38 PM CDTSpecial Weather StatementOUNMarshall37 min
Jun 6, 4:41 PM CDTAreal Flood AdvisoryOUNCarter, Love, Murray3 hr
Jun 6, 5:14 PM CDTSpecial Weather StatementOUNKingfisher31 min
Jun 6, 5:14 PM CDTSpecial Weather StatementOUNJohnston31 min
Jun 6, 5:15 PM CDTSpecial Weather StatementOUNOklahoma45 min
Jun 6, 5:27 PM CDTSpecial Weather StatementOUNJohnston63 min
Jun 6, 5:38 PM CDTSpecial Weather StatementOUNCoal67 min
Jun 6, 5:45 PM CDTSpecial Weather StatementOUNLincoln30 min
Jun 6, 5:48 PM CDTSpecial Weather StatementOUNLincoln57 min
Jun 6, 5:55 PM CDTAreal Flood AdvisoryOUNAtoka, Bryan, Coal, Johnston, Marshall3 hr
Jun 6, 6:13 PM CDTFlash Flood WarningOUNAtoka, Johnston3 hr
Jun 6, 6:29 PM CDTSpecial Weather StatementOUNAtoka61 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.