Mesoscale Discussion 2037

Issued

Dec 15, 2021, 7:14 PM CST (01:14 UTC)

Expired

Dec 15, 2021, 8:45 PM CST

In force

91 min

Issued by

the Storm Prediction Center

Concerning

Severe thunderstorm watch 566

The Pleasant Hill radar (KEAX), 96 km from the middle of the area, began a volume at 01:17 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.

088 
ACUS11 KWNS 160114
SWOMCD
SPC MCD 160114 
ILZ000-MOZ000-KSZ000-OKZ000-160245-

Mesoscale Discussion 2037
NWS Storm Prediction Center Norman OK
0714 PM CST Wed Dec 15 2021

Areas affected...extreme southeast Kansas into portions of western
into central Missouri

Concerning...Severe Thunderstorm Watch 566...

Valid 160114Z - 160245Z

The severe weather threat for Severe Thunderstorm Watch 566
continues.

SUMMARY...A threat for damaging/severe gusts continues across Severe
Thunderstorm Watch 566 and is expected to continue for at least a
few more hours.

DISCUSSION...KEAX and MRMS mosaic radar data shows a broken squall
line of linear segments and transient supercell structures
continuing across extreme southeast KS into north-central MO.
Multiple severe gusts and wind damage reports have been received in
the past 1-2 hours, especially across far east KS. However,
deep-layer ascent in tandem with the surface low continue to rapidly
propagate northward, away from MO. Furthermore, the convective line
is gradually tracking eastward ahead of the axis of buoyancy/minimum
MLCINH, which may explain the gradual weakening convective/lightning
trends in the last hour. However, an impressive kinematic
environment remains ahead of the line and additional damaging/severe
gusts are still possible over the next few hours, and a 65+ kt gust
cannot be completely ruled out.

..Squitieri/Hart.. 12/16/2021

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...LSX...DVN...SGF...EAX...TSA...TOP...ICT...

LAT...LON   37239604 38309475 39599394 40469331 40559215 40219166
            39849116 39489109 38889140 38089194 37449256 37079316
            36919385 36999507 37239604

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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.