Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 708, NWS Norman, OK

August 11, 2023Jackson County, Kiowa County, Tillman County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Aug 11, 2023, 7:27 PM CDT for Jackson County, Kiowa County, Tillman County, Oklahoma. It was in force for 33 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
Aug 11, 2023, 7:27 PM CDT (00:27 UTC)
Expired
Aug 11, 2023, 8:00 PM CDT
In force
33 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Jackson County, OK, Kiowa County, OK, Tillman County, OK

The radar

The Altus AFB radar (KFDR), 29 km from the middle of the area, began a volume at 00:28 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
Aug 11, 5:54 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 0.5 hours before the alert went out and 175 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 2023-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2282 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2023-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 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
2282 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
2559 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.8

Open this sounding in Storm Lab

The text

As transmitted.

859 
WUUS54 KOUN 120027
SVROUN
OKC065-075-141-120100-
/O.NEW.KOUN.SV.W.0708.230812T0027Z-230812T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
727 PM CDT Fri Aug 11 2023

The National Weather Service in Norman has issued a

* Severe Thunderstorm Warning for...
  Southeastern Jackson County in southwestern Oklahoma...
  South central Kiowa County in southwestern Oklahoma...
  Northwestern Tillman County in southwestern Oklahoma...

* Until 800 PM CDT.

* At 726 PM CDT, a severe thunderstorm was located near Humphreys,
  moving east at 15 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...
  Altus, Tipton, Manitou, Elmer, Headrick, Humphreys, and Hess. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3470 9900 3443 9898 3446 9940 3461 9940
TIME...MOT...LOC 0026Z 266DEG 14KT 3454 9928 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

30
1 follow-up statement
895 
WWUS54 KOUN 120047
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
747 PM CDT Fri Aug 11 2023

OKC075-120056-
/O.CAN.KOUN.SV.W.0708.000000T0000Z-230812T0100Z/
Kiowa OK-
747 PM CDT Fri Aug 11 2023

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL KIOWA COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3461 9935 3467 9910 3464 9910 3464 9908
      3444 9908 3446 9935
TIME...MOT...LOC 0046Z 266DEG 14KT 3455 9918 

$$

OKC065-141-120100-
/O.CON.KOUN.SV.W.0708.000000T0000Z-230812T0100Z/
Jackson OK-Tillman OK-
747 PM CDT Fri Aug 11 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR SOUTHEASTERN JACKSON AND NORTHWESTERN TILLMAN COUNTIES...

At 746 PM CDT, a severe thunderstorm was located near Humphreys,
moving east at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Tipton, Elmer, Headrick, Humphreys, and Hess. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3461 9935 3467 9910 3464 9910 3464 9908
      3444 9908 3446 9935
TIME...MOT...LOC 0046Z 266DEG 14KT 3455 9918 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

30

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 7:07 PM CDTSpecial Weather StatementOUNEllis23 min
Aug 11, 7:08 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNBlaine, Custer, Dewey, Washita52 min
Aug 11, 7:32 PM CDTSpecial Weather StatementOUNEllis28 min
Aug 11, 7:44 PM CDTSpecial Weather StatementOUNJackson31 min
Aug 11, 7:56 PM CDTSevere Thunderstorm WarningOUNHarmon, Jackson49 min
Aug 11, 7:59 PM CDTSevere Thunderstorm WarningOUNBlaine, Caddo, Canadian, Custer, Dewey, Washita46 min
Aug 11, 8:37 PM CDTSpecial Weather StatementOUNJackson38 min
Aug 11, 8:39 PM CDTSevere Thunderstorm WarningOUNBlaine, Canadian, Garfield, Kingfisher, Major51 min
Aug 11, 8:45 PM CDTSevere Thunderstorm WarningOUNJackson, Kiowa, Tillman45 min
Aug 11, 8:55 PM CDTSevere Thunderstorm WarningOUNJackson35 min
Aug 11, 9:06 PM CDTSpecial Weather StatementOUNComanche24 min
Aug 11, 9:13 PM CDTSpecial Weather StatementOUNKiowa32 min
Aug 11, 9:17 PM CDTAreal Flood AdvisoryOUNJackson3 hr
Aug 11, 9:20 PM CDTSevere Thunderstorm WarningOUNKiowa, Washita40 min
Aug 11, 9:22 PM CDTSevere Thunderstorm WarningOUNGarfield, Kingfisher, Logan, Noble53 min
Aug 11, 9:26 PM CDTSevere Thunderstorm WarningOUNHarmon, Jackson, Kiowa, Tillman49 min
Aug 11, 9:30 PM CDTSpecial Weather StatementOUNWashita30 min
Aug 11, 9:41 PM CDTSevere Thunderstorm WarningOUNBlaine, Caddo, Custer, Washita34 min
Aug 11, 10:02 PM CDTSevere Thunderstorm WarningOUNGarfield, Noble43 min
Aug 11, 10:10 PM CDTSpecial Weather StatementOUNComanche, Tillman35 min
Aug 11, 10:29 PM CDTSpecial Weather StatementOUNCanadian31 min
Aug 11, 10:35 PM CDTSevere Thunderstorm WarningOUNJackson, Tillman40 min
Aug 11, 10:41 PM CDTSevere Thunderstorm WarningOUNNoble34 min
Aug 11, 10:49 PM CDTSevere Thunderstorm WarningOUNCanadian, Cleveland14 min
Aug 11, 11:02 PM CDTSpecial Weather StatementOUNKay28 min
Aug 11, 11:10 PM CDTSevere Thunderstorm WarningOUNJackson, Tillman35 min
Aug 11, 11:19 PM CDTSpecial Weather StatementOUNCanadian26 min
Aug 11, 11:40 PM CDTSpecial Weather StatementOUNCleveland35 min
Aug 12, 12:08 AM CDTSpecial Weather StatementOUNOklahoma22 min
Aug 12, 1:23 AM CDTSpecial Weather StatementOUNCotton37 min
Aug 12, 4:06 AM CDTSpecial Weather StatementOUNCleveland24 min
Aug 12, 8:30 AM CDTSpecial Weather StatementOUNPottawatomie30 min
Aug 12, 8:46 AM CDTSpecial Weather StatementOUNCleveland29 min
Aug 12, 8:50 AM CDTSpecial Weather StatementOUNGarvin25 min
Aug 12, 9:15 AM CDTSpecial Weather StatementOUNGarvin, Pottawatomie30 min
Aug 12, 9:48 AM CDTSpecial Weather StatementOUNGarvin, Pottawatomie42 min
Aug 12, 11:40 AM CDTSpecial Weather StatementOUNCleveland, Pottawatomie35 min
Aug 12, 12:19 PM CDTSpecial Weather StatementOUNMcClain, Pottawatomie41 min
Aug 12, 1:17 PM CDTSpecial Weather StatementOUNMcClain, Pottawatomie28 min
Aug 12, 1:19 PM CDTAreal Flood AdvisoryOUNCleveland, Pottawatomie3 hr
Aug 12, 2:19 PM CDTFlash Flood WarningOUNCleveland, Pottawatomie4 hr
Aug 12, 2:29 PM CDTExcessive Heat WarningOUNAtoka, Bryan, Carter, Cleveland, Coal, Garvin and 12 more31 hr
Aug 12, 2:29 PM CDTHeat AdvisoryOUNCaddo, Canadian, Cleveland, Comanche, Cotton, Garfield and 18 more31 hr
Aug 12, 2:35 PM CDTRed Flag WarningOUNComanche, Cotton, Jackson, Jefferson, Stephens, Tillman30 hr
Aug 12, 3:15 PM CDTSpecial Weather StatementOUNJackson30 min
Aug 12, 3:15 PM CDTSpecial Weather StatementOUNCaddo30 min
Aug 12, 3:20 PM CDTSevere Thunderstorm WarningOUNCaddo40 min
Aug 12, 3:20 PM CDTSevere Thunderstorm WarningOUNJackson40 min
Aug 12, 3:24 PM CDTSpecial Weather StatementOUNPottawatomie36 min
Aug 12, 3:34 PM CDTSevere Thunderstorm WarningOUNCaddo41 min
Aug 12, 3:37 PM CDTSpecial Weather StatementOUNAlfalfa23 min
Aug 12, 3:54 PM CDTSevere Thunderstorm WarningOUNGreer, Harmon, Jackson, Kiowa, Tillman36 min
Aug 12, 3:58 PM CDTSpecial Weather StatementOUNStephens32 min
Aug 12, 4:06 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNCaddo, Comanche, Grady, Stephens39 min
Aug 12, 4:16 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNCaddo, Grady44 min
Aug 12, 4:20 PM CDTSpecial Weather StatementOUNPottawatomie25 min
Aug 12, 4:28 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNComanche, Greer, Harmon, Jackson, Kiowa, Tillman47 min
Aug 12, 4:42 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNCaddo, Comanche, Grady, Kiowa, Stephens48 min
Aug 12, 5:13 PM CDTSevere Thunderstorm WarningOUNComanche, Harmon, Jackson, Kiowa, Tillman47 min
Aug 12, 5:24 PM CDTSevere Thunderstorm WarningOUNCaddo, Comanche, Grady, Kiowa, Stephens51 min
Aug 12, 5:26 PM CDTSpecial Weather StatementOUNGreer34 min
Aug 12, 6:03 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNTillman27 min
Aug 12, 6:13 PM CDTSevere Thunderstorm WarningOUNCaddo, Comanche, Grady, Stephens47 min
Aug 12, 6:19 PM CDTSevere Thunderstorm WarningOUNCuster, Kiowa, Washita41 min
Aug 12, 6:21 PM CDTAreal Flood AdvisoryOUNCaddo, Comanche, Grady, Stephens3 hr
Aug 12, 6:28 PM CDTSevere Thunderstorm WarningOUNComanche, Tillman32 min
Aug 12, 6:44 PM CDTAreal Flood WarningOUNCleveland, McClain, Pottawatomie3 hr
Aug 12, 6:56 PM CDTSevere Thunderstorm WarningOUNCuster, Washita34 min
Aug 12, 6:58 PM CDTSevere Thunderstorm WarningOUNCaddo, Comanche, Garvin, Grady, McClain, Stephens32 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2023Every severe thunderstorm warning in 2023

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.