Alert archive / Texas / Mesoscale Discussions in 2025

Mesoscale Discussion 928

May 22, 20254 counties in Oklahoma; 5 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 22, 2025, 12:26 PM CDT for 4 counties in Oklahoma; 5 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 22, 2025, 12:26 PM CDT (17:26 UTC)
Expired: May 22, 2025, 2:30 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 311

Counties Carter County, OK, Jefferson County, OK, Love County, OK, Marshall County, OK, Collin County, TX, Cooke County, TX, Denton County, TX, Grayson County, TX, Montague County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 143 km from the middle of the area, began a volume at 17:28 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 312May 22, 3:05 PM CDT

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 5.4 hours before the alert went out and 152 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 12 J/kg
Mixed-layer CIN: -556 J/kg
Mixed-layer LCL: 1705 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 132 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 21, 7:57 PM CDT	Mesoscale Discussion	SPC	Ottawa	2 hr
May 22, 9:37 AM CDT	Mesoscale Discussion	SPC	Atoka, Bryan, Carter, Cleveland, Coal, Garvin and 11 more	2 hr
May 22, 10:55 AM CDT	Severe Thunderstorm Watch	SPC	Atoka, Bryan, Carter, Choctaw, Coal, Hughes and 12 more	5 hr
May 22, 3:04 PM CDT	Severe Thunderstorm Watch	SPC	Carter, Comanche, Cotton, Greer, Harmon, Jackson and 5 more	10 hr
May 22, 5:00 PM CDT	Mesoscale Discussion	SPC	Carter, Cotton, Jefferson, Love, Tillman	2 hr
May 22, 1:44 PM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Haskell, Knox, Wichita, Wilbarger	2 hr
May 22, 2:24 PM CDT	Mesoscale Discussion	SPC	Crosby, Dickens, Floyd, Foard, Garza, Kent and 2 more	2 hr
May 22, 4:38 PM CDT	Mesoscale Discussion	SPC	Bosque, Comanche, Erath, Hamilton, Hood, Jack and 5 more	97 min
May 22, 5:51 PM CDT	Mesoscale Discussion	SPC	Bastrop, Blanco, Burnet, Caldwell, Comal, Gillespie and 7 more	114 min

Nearby

Mesoscale Discussions in Texas, 2025 Mesoscale Discussions in Oklahoma, 2025 Every mesoscale discussion in 2025

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.