MD 1318 CONCERNING SEVERE THUNDERSTORM WATCH 407… FOR NORTHEAST OK…EXTREME SOUTHEAST KS…FAR SOUTHWEST MO…FAR NORTHWEST AR
Mesoscale Discussion 1318
NWS Storm Prediction Center Norman OK
0112 AM CDT Wed Jun 28 2023
Areas affected...Northeast OK...Extreme Southeast KS...Far Southwest
MO...Far Northwest AR
Concerning...Severe Thunderstorm Watch 407...
Valid 280612Z - 280745Z
The severe weather threat for Severe Thunderstorm Watch 407
continues.
SUMMARY...Damaging gusts are expected to persist as the ongoing
convective system continues east-southeastward across northeast OK
and into far southwest MO and northwest AR.
DISCUSSION...A well-organized mesoscale convective system continues
to progress east-southeastward across northeast OK and extreme
southeast KS at 40 to 45 kt. Severe gusts have been measured
throughout the life of this MCS, including a 55 kt gust at Newkirk
in northern Kay County OK. Low-level stability will persist
throughout the downstream air mass, but strong ascent attendant to
the deep cold pool, combined with ample low-level moisture and steep
mid-level lapse rates, is expected to sustain the system for the
next few hours. Stronger buoyancy exists ahead of the southern
portion of the line, and a trend towards more southeastward motion
is anticipated. Current storm motion takes the MCS to the edge of
Severe Thunderstorm Watch 407 around 0730Z, and another watch will
likely be needed downstream across portions of far southwest MO and
northwest AR to cover the anticipated severe threat later tonight.
..Mosier/Thompson.. 06/28/2023
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...SGF...TSA...ICT...
LAT...LON 37189627 37279527 36899395 36429330 35489409 36199671
37189627
