Alert archive / Oklahoma / Mesoscale Discussions in 2026
Mesoscale Discussion 1321
The Storm Prediction Center issued this mesoscale discussion at Jun 25, 2026, 6:15 PM CDT for 9 counties in Oklahoma; Hemphill County, Lipscomb County, Wheeler County, Texas. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- Jun 25, 2026, 6:15 PM CDT (23:15 UTC)
- Expired
- Jun 25, 2026, 7:45 PM CDT
- In force
- 90 min
- Issued by
- the Storm Prediction Center
- Concerning
- Tornado and severe thunderstorm watches 392...393
Counties Beckham County, OK, Blaine County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Major County, OK, Roger Mills County, OK, Washita County, OK, Woodward County, OK, Hemphill County, TX, Lipscomb County, TX, Wheeler County, TX
The radar
The Vance AFB radar (KVNX), 159 km from the middle of the area, began a volume at 23:19 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 11.3 hours before the alert went out and 210 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.
- Mixed-layer CAPE
- 1280 J/kg
- Mixed-layer CIN
- -135 J/kg
- Mixed-layer LCL
- 1096 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.0
The text
As transmitted.
592
ACUS11 KWNS 252315
SWOMCD
SPC MCD 252315
OKZ000-TXZ000-260045-
Mesoscale Discussion 1321
NWS Storm Prediction Center Norman OK
0615 PM CDT Thu Jun 25 2026
Areas affected...portions of the eastern Texas Panhandle into
western Oklahoma
Concerning...Tornado and Severe Thunderstorm Watches 392...393...
Valid 252315Z - 260045Z
The severe weather threat for Tornado and Severe Thunderstorm
Watches 392, 393 continues.
SUMMARY...The threat for damaging wind gusts is increasing across
portions of western Oklahoma.
DISCUSSION...Several previously discrete supercells have begun to
cluster/grow upscale across the northeastern Texas Panhandle and far
northwestern Oklahoma over the past 30-60 minutes. With dewpoint
depressions of 20-25+ F favoring continued cold pool development and
consolidation, expectation is for this activity to continue to
consolidate into a forward-propagating cluster as it progresses
east-southeastward into western Oklahoma. Moderate to strong
instability (2000-3000+ J/kg MLCAPE) and around 40 kts of effective
shear will favor a continued severe threat and an attendant increase
in the threat for a swath of damaging wind gusts (some 75+ mph).
Occasional large hail and perhaps a brief tornado will also remain
possible with any stronger embedded cores/supercell structures.
..Chalmers.. 06/25/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...OUN...AMA...
LAT...LON 36260049 36490019 36609974 36639954 36639891 36499846
36229822 35949816 35559822 35269853 35149896 35139947
35190004 35360044 35440063 35700081 35970077 36260049
MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 INSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 12:38 PM CDT | Mesoscale Discussion | SPC | Craig, Kay, Nowata, Osage, Ottawa, Washington | 3 hr |
| Jun 25, 1:56 PM CDT | Mesoscale Discussion | SPC | Beaver, Cimarron, Ellis, Harper, Texas, Woods and 1 more | 3 hr |
| Jun 25, 3:03 PM CDT | Tornado Watch | SPC | Adair, Alfalfa, Beaver, Blaine, Cherokee, Craig and 25 more | 8 hr |
| Jun 25, 3:35 PM CDT | Severe Thunderstorm Watch | SPC | Beckham, Caddo, Cimarron, Custer, Greer, Harmon and 4 more | 7 hr |
| Jun 25, 5:05 PM CDT | Mesoscale Discussion | SPC | Adair, Cherokee, Delaware, Mayes, Muskogee, Sequoyah and 1 more | 85 min |
| Jun 25, 5:22 PM CDT | Mesoscale Discussion | SPC | Woodward | 68 min |
| Jun 25, 5:46 PM CDT | Severe Thunderstorm Watch | SPC | LeFlore, Sequoyah | 2 hr |
| Jun 24, 10:57 PM CDT | Mesoscale Discussion | SPC | Armstrong, Bailey, Carson, Castro, Deaf Smith, Hale and 9 more | 63 min |
Nearby
Mesoscale Discussions in Oklahoma, 2026Mesoscale Discussions in Texas, 2026Every mesoscale discussion 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.