Alert archive / Oklahoma / Mesoscale Discussions in 2023

Mesoscale Discussion 10

January 2, 2023McDonald County, Missouri; 14 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Jan 2, 2023, 5:45 PM CST for McDonald County, Missouri; 14 counties in Oklahoma. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued: Jan 2, 2023, 5:45 PM CST (23:45 UTC)
Expired: Jan 2, 2023, 7:15 PM CST
In force: 90 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 2

Counties McDonald County, MO, Adair County, OK, Cherokee County, OK, Craig County, OK, Delaware County, OK, Haskell County, OK, Latimer County, OK, LeFlore County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Ottawa County, OK, Pittsburg County, OK, Sequoyah County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 70 km from the middle of the area, began a volume at 23:50 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

Springfield, MO (KSGF), launched 12:00Z, 11.8 hours before the alert went out and 172 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: 709 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 138 m²/s²
0-3 km storm-relative helicity: 140 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
Jan 2, 2:02 PM CST	Mesoscale Discussion	SPC	Barry, McDonald, Newton	118 min
Jan 2, 11:34 AM CST	Mesoscale Discussion	SPC	McCurtain	2 hr
Jan 2, 1:22 PM CST	Tornado Watch	SPC	McCurtain	8 hr
Jan 2, 3:34 PM CST	Tornado Watch	SPC	Adair, Atoka, Bryan, Cherokee, Choctaw, Coal and 32 more	6 hr
Jan 2, 4:45 PM CST	Mesoscale Discussion	SPC	Choctaw	90 min

Nearby

Mesoscale Discussions in Oklahoma, 2023 Mesoscale Discussions in Missouri, 2023 Every mesoscale discussion in 2023

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.