Alert archive / Oklahoma / Mesoscale Discussions in 2025

Mesoscale Discussion 613

April 29, 20259 counties in Oklahoma; 8 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 29, 2025, 9:09 PM CDT for 9 counties in Oklahoma; 8 counties in Texas. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued: Apr 29, 2025, 9:09 PM CDT (02:09 UTC)
Expired: Apr 29, 2025, 10:45 PM CDT
In force: 96 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 194

Counties Carter County, OK, Cotton County, OK, Garvin County, OK, Jefferson County, OK, Johnston County, OK, Love County, OK, Marshall County, OK, Murray County, OK, Stephens County, OK, Archer County, TX, Clay County, TX, Cooke County, TX, Denton County, TX, Jack County, TX, Montague County, TX, Wise County, TX, Young County, TX

The radar

The Altus AFB radar (KFDR), 112 km from the middle of the area, began a volume at 02:09 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 196Apr 30, 12:55 AM CDT

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.2 hours before the alert went out and 127 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: 1605 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1204 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.6

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
Apr 29, 11:42 PM CDT	Mesoscale Discussion	SPC	Carter, Cotton, Jefferson, Love, Tillman	2 hr
Apr 30, 12:39 AM CDT	Mesoscale Discussion	SPC	Atoka, Bryan, Carter, Choctaw, Coal, Cotton and 9 more	96 min
Apr 30, 12:54 AM CDT	Severe Thunderstorm Watch	SPC	Atoka, Bryan, Carter, Choctaw, Coal, Comanche and 17 more	9 hr
Apr 30, 4:24 AM CDT	Mesoscale Discussion	SPC	Atoka, Bryan, Carter, Choctaw, Coal, Comanche and 17 more	2 hr
Apr 30, 9:07 AM CDT	Mesoscale Discussion	SPC	Bryan, Choctaw, McCurtain, Marshall, Pushmataha	113 min
Apr 30, 9:50 AM CDT	Tornado Watch	SPC	Adair, Choctaw, Haskell, Latimer, LeFlore, McCurtain and 5 more	7 hr
Apr 30, 11:21 AM CDT	Mesoscale Discussion	SPC	Adair, Cherokee, McIntosh, Muskogee, Sequoyah	84 min
Apr 29, 8:42 PM CDT	Mesoscale Discussion	SPC	Borden, Coke, Cottle, Crosby, Dawson, Dickens and 18 more	2 hr
Apr 29, 10:49 PM CDT	Severe Thunderstorm Watch	SPC	Andrews, Borden, Callahan, Cochran, Cottle, Crosby and 29 more	7 hr
Apr 30, 12:17 PM CDT	Mesoscale Discussion	SPC	Anderson, Bell, Bosque, Brazos, Cherokee, Coryell and 22 more	118 min
Apr 30, 1:06 PM CDT	Tornado Watch	SPC	Anderson, Angelina, Bell, Brazos, Burleson, Cherokee and 23 more	7 hr
Apr 30, 2:32 PM CDT	Mesoscale Discussion	SPC	Armstrong, Bailey, Briscoe, Castro, Childress, Cochran and 20 more	58 min
Apr 30, 5:31 PM CDT	Mesoscale Discussion	SPC	Atascosa, Bexar, Caldwell, Frio, Gonzales, Guadalupe and 4 more	89 min

Nearby

Mesoscale Discussions in Oklahoma, 2025 Mesoscale Discussions in Texas, 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.