Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 593, NWS Norman, OK

June 18, 2026Kay County, Noble County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 18, 2026, 2:01 PM CDT for Kay County, Noble County, Oklahoma. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 18, 2026, 2:01 PM CDT (19:01 UTC)
Expired
Jun 18, 2026, 2:45 PM CDT
In force
44 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Kay County, OK, Noble County, OK

The radar

The Vance AFB radar (KVNX), 85 km from the middle of the area, began a volume at 19:01 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

Norman, OK (KOUN), launched 12:00Z, 7.0 hours before the alert went out and 155 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 12:00Z on 2026-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2182 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 12:00Z on 2026-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 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
2182 J/kg
Mixed-layer CIN
-220 J/kg
Mixed-layer LCL
621 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 18, 1:17 PM CDT, 44 minutes earlier.

Area forecast discussion, Jun 18, 1:17 PM CDT, 44 minutes before
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In the hours before

Local storm report, Jun 18, 10:08 AM CDT, 3 hours 53 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
1008 AM CDT Thu Jun 18 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0947 AM     Hail             6 N Hunter              36.66N 97.68W
06/18/2026  E1.25 Inch       Grant              OK   Public

            Report from mPING: Half Dollar (1.25 in.).

&&
Local storm report, Jun 18, 10:27 AM CDT, 3 hours 34 minutes before
Preliminary Local Storm Report
National Weather Service Norman OK
1027 AM CDT Thu Jun 18 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0940 AM     Tstm Wnd Dmg     1 SSW Lamont            36.68N 97.56W
06/18/2026                   Grant              OK   Emergency Mngr

            powerlines down south of Lamont on US 60.

&&

21
Special weather statement, Jun 18, 11:01 AM CDT, 3 hours before
Special Weather Statement
National Weather Service Norman OK
1101 AM CDT Thu Jun 18 2026

OKZ007-181630-
Grant OK-
1101 AM CDT Thu Jun 18 2026

...A strong thunderstorm will impact portions of northeastern Grant
County through 1130 AM CDT...

At 1101 AM CDT, Doppler radar was tracking a strong thunderstorm 4
miles northeast of Medford, moving east at 30 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Medford, Deer Creek, and Renfrow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3676 9747 3678 9778 3700 9782 3700 9746
TIME...MOT...LOC 1601Z 273DEG 26KT 3685 9769

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

..speg.
Special weather statement, Jun 18, 11:34 AM CDT, 2 hours 27 minutes before
Special Weather Statement
National Weather Service Norman OK
1134 AM CDT Thu Jun 18 2026

OKZ007-008-181700-
Kay OK-Grant OK-
1134 AM CDT Thu Jun 18 2026

...Strong thunderstorms will impact portions of western Kay and
eastern Grant Counties through NOON CDT...

At 1134 AM CDT, Doppler radar was tracking strong thunderstorms 5
miles north of Nardin and 5 miles northwest of Lamont. Movement was
east at 40 mph.

HAZARD...Wind gusts of 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Blackwell, Tonkawa, Medford, Newkirk, Lamont, Braman, Deer Creek,
Renfrow, Chilocco, Nardin, Blackwell Lake, and Peckham.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3664 9729 3668 9766 3683 9779 3700 9757
      3700 9690
TIME...MOT...LOC 1634Z 269DEG 33KT 3689 9746 3674 9764

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

..speg.
Special weather statement, Jun 18, 12:07 PM CDT, 1 hour 54 minutes before
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Local storm report, Jun 18, 1:05 PM CDT, 56 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 5:51 AM CDTSpecial Weather StatementOUNGrant24 min
Jun 18, 5:54 AM CDTSevere Thunderstorm WarningOUNGrant51 min
Jun 18, 6:18 AM CDTSpecial Weather StatementOUNGrant27 min
Jun 18, 6:24 AM CDTSevere Thunderstorm WarningOUNGrant21 min
Jun 18, 6:43 AM CDTSevere Thunderstorm WarningOUNGrant, Kay47 min
Jun 18, 6:54 AM CDTSpecial Weather StatementOUNKay36 min
Jun 18, 7:27 AM CDTSevere Thunderstorm WarningOUNGrant, Kay, Noble48 min
Jun 18, 7:41 AM CDTSpecial Weather StatementOUNGrant34 min
Jun 18, 8:13 AM CDTSpecial Weather StatementOUNNoble32 min
Jun 18, 8:14 AM CDTSpecial Weather StatementOUNGrant31 min
Jun 18, 8:42 AM CDTSpecial Weather StatementOUNKay18 min
Jun 18, 8:44 AM CDTSpecial Weather StatementOUNGrant31 min
Jun 18, 9:10 AM CDTSevere Thunderstorm WarningOUNGarfield, Grant50 min
Jun 18, 9:14 AM CDTAreal Flood AdvisoryOUNGarfield, Grant, Kay, Noble2 hr
Jun 18, 9:59 AM CDTSevere Thunderstorm WarningOUNGarfield, Grant, Kay, Noble46 min
Jun 18, 10:04 AM CDTFlash Flood WarningOUNGarfield, Grant, Kay, Noble116 min
Jun 18, 10:43 AM CDTSevere Thunderstorm WarningOUNKay, Noble47 min
Jun 18, 11:01 AM CDTSpecial Weather StatementOUNGrant29 min
Jun 18, 11:34 AM CDTSpecial Weather StatementOUNKay26 min
Jun 18, 11:46 AM CDTAreal Flood AdvisoryOUNGrant3 hr
Jun 18, 12:05 PM CDTFlash Flood WarningOUNGrant3 hr
Jun 18, 12:07 PM CDTSpecial Weather StatementOUNGrant38 min
Jun 18, 12:10 PM CDTFlood WatchOUNCarter, Comanche, Cotton, Garvin, Jackson, Jefferson and 4 more21 hr
Jun 18, 12:22 PM CDTSevere Thunderstorm WarningOUNGrant38 min
Jun 18, 12:56 PM CDTSevere Thunderstorm WarningOUNGarfield, Grant, Kay, Noble49 min
Jun 18, 2:44 PM CDTSpecial Weather StatementOUNKay31 min
Jun 18, 3:06 PM CDTAreal Flood WarningOUNGrant3 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2026Every severe thunderstorm warning in 2026

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.