Alert archive / Oklahoma / Mesoscale Discussions in 2025

Mesoscale Discussion 129

March 4, 20255 counties in Arkansas; 11 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Mar 4, 2025, 6:22 AM CST for 5 counties in Arkansas; 11 counties in Oklahoma. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Mar 4, 2025, 6:22 AM CST (12:22 UTC)
Expired: Mar 4, 2025, 8:45 AM CST
In force: 2 hr
Issued by: the Storm Prediction Center
Concerning: Tornado watch 18

Counties Benton County, AR, Crawford County, AR, Scott County, AR, Sebastian County, AR, Washington County, AR, Adair County, OK, Cherokee County, OK, Haskell County, OK, Latimer County, OK, LeFlore County, OK, McIntosh County, OK, Muskogee County, OK, Pittsburg County, OK, Pushmataha County, OK, Sequoyah County, OK, Wagoner County, OK

The radar

The Western Arkansas radar (KSRX), 53 km from the middle of the area, began a volume at 12:21 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 19Mar 4, 6:45 AM CST

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 0.4 hours before the alert went out and 200 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 904 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 451 m²/s²
0-3 km storm-relative helicity: 457 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
Mar 4, 4:13 AM CST	Tornado Watch	SPC	Howard, Little River, Miller, Polk, Scott, Sevier	6 hr
Mar 4, 6:43 AM CST	Severe Thunderstorm Watch	SPC	Benton, Boone, Carroll, Crawford, Franklin, Johnson and 5 more	3 hr
Mar 4, 7:49 AM CST	Mesoscale Discussion	SPC	Columbia, Hempstead, Lafayette, Little River, Miller, Nevada and 2 more	116 min
Mar 4, 8:13 AM CST	Tornado Watch	SPC	Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 16 more	7 hr
Mar 4, 8:56 AM CST	Mesoscale Discussion	SPC	Benton, Boone, Carroll, Crawford, Franklin, Johnson and 7 more	94 min
Mar 4, 10:17 AM CST	Mesoscale Discussion	SPC	Arkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 9 more	88 min
Mar 4, 11:49 AM CST	Mesoscale Discussion	SPC	Chicot	116 min
Mar 3, 7:55 PM CST	Mesoscale Discussion	SPC	Alfalfa, Beckham, Blaine, Caddo, Canadian, Carter and 31 more	95 min
Mar 3, 9:33 PM CST	Tornado Watch	SPC	Alfalfa, Beckham, Blaine, Caddo, Canadian, Carter and 38 more	7 hr
Mar 3, 11:31 PM CST	Mesoscale Discussion	SPC	Alfalfa, Blaine, Caddo, Canadian, Cleveland, Comanche and 20 more	119 min
Mar 4, 2:38 AM CST	Mesoscale Discussion	SPC	Carter, Garvin, Jefferson, Johnston, Love, Marshall and 2 more	2 hr
Mar 4, 5:13 AM CST	Mesoscale Discussion	SPC	Atoka, Bryan, Coal, Hughes, Johnston, Marshall and 3 more	2 hr

Nearby

Mesoscale Discussions in Oklahoma, 2025 Mesoscale Discussions in Arkansas, 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.