Alert archive / Oklahoma / Mesoscale Discussions in 2024

Mesoscale Discussion 99

February 2, 20249 counties in Oklahoma; 5 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Feb 2, 2024, 5:47 PM CST for 9 counties in Oklahoma; 5 counties in Texas. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued: Feb 2, 2024, 5:47 PM CST (23:47 UTC)
Expired: Feb 2, 2024, 7:45 PM CST
In force: 118 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch unlikely
Chance of a watch: 20%

Counties Beckham County, OK, Caddo County, OK, Comanche County, OK, Custer County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kiowa County, OK, Washita County, OK, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Hardeman County, TX, Wheeler County, TX

The radar

The Altus AFB radar (KFDR), 72 km from the middle of the area, began a volume at 23:48 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

Fort Worth, TX (KFWD), launched 12:00Z, 11.8 hours before the alert went out and 303 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: 739 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 136 m²/s²
0-3 km storm-relative helicity: 160 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
Feb 2, 3:42 PM CST	Mesoscale Discussion	SPC	Harmon, Jackson, Tillman	3 hr
Feb 2, 3:03 PM CST	Mesoscale Discussion	SPC	Atascosa, Bandera, Bexar, Blanco, Brown, Burnet and 43 more	2 hr
Feb 2, 5:32 PM CST	Severe Thunderstorm Watch	SPC	Archer, Atascosa, Bandera, Bastrop, Baylor, Bexar and 63 more	6 hr

Nearby

Mesoscale Discussions in Oklahoma, 2024 Mesoscale Discussions in Texas, 2024 Every mesoscale discussion in 2024

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.