Alert archive / Oklahoma / Mesoscale Discussions in 2024

Mesoscale Discussion 964

May 25, 20246 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 25, 2024, 10:40 PM CDT for 6 counties in Oklahoma. It was in force for 65 min.

The area

The outline as issued.

The facts

Issued: May 25, 2024, 10:40 PM CDT (03:40 UTC)
Expired: May 25, 2024, 11:45 PM CDT
In force: 65 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 308...311

Counties Craig County, OK, Nowata County, OK, Osage County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 55 km from the middle of the area, began a volume at 03:38 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

Norman, OK (KOUN), launched 00:00Z, 3.7 hours before the alert went out and 190 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: 3919 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 575 m above ground
0-6 km bulk shear: 75 kt
0-1 km storm-relative helicity: 326 m²/s²
0-3 km storm-relative helicity: 262 m²/s²
Significant tornado parameter: 6.8
Supercell composite: 21.2

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 25, 8:19 PM CDT	Mesoscale Discussion	SPC	Adair, Alfalfa, Cherokee, Craig, Creek, Delaware and 14 more	86 min
May 25, 9:04 PM CDT	Tornado Watch	SPC	Adair, Cherokee, Choctaw, Craig, Delaware, Haskell and 15 more	8 hr
May 26, 1:03 AM CDT	Mesoscale Discussion	SPC	Adair	117 min
May 26, 1:36 PM CDT	Mesoscale Discussion	SPC	Craig, Ottawa	2 hr
May 26, 3:28 PM CDT	Tornado Watch	SPC	Delaware, Ottawa	5 hr

Nearby

Mesoscale Discussions in Oklahoma, 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.