This is a multi-part message in MIME format...

------------=_1532162509-1941-1936
Content-Type: text/plain

ACUS11 KWNS 210841
SWOMCD
SPC MCD 210841
MSZ000-ARZ000-LAZ000-MOZ000-OKZ000-211045-

Mesoscale Discussion 1114
NWS Storm Prediction Center Norman OK
0341 AM CDT Sat Jul 21 2018

Areas affected...Far northeast OK...AR...and northwest and central
MS

Concerning...Severe Thunderstorm Watch 298...

Valid 210841Z - 211045Z

The severe weather threat for Severe Thunderstorm Watch 298
continues.

SUMMARY...Severe-weather threat for strong/damaging wind gusts and
hail will persist into the early morning across WW 298.

DISCUSSION...Trends in mosaic radar imagery indicated the most
persistent clusters of storms since 08Z extended from far northeast
OK and northwest AR into central and eastern AR, with storms
tracking to the southeast at 40-45 kt within a corridor of
moderately strong instability. This activity remains located north
and northeast of a baroclinic zone which extended from north-central
OK through central AR, with a separate wind shift extending
generally west-east through north-central MS. Forcing for ascent
attendant to warm advection within the exit region of a 30-40 kt
westerly low-level jet extending from OK into AR will continue to
support additional storm development overnight into the early
morning across WW 298. Trends in VWP data per area WSR-88Ds in
southern KS and OK/AR indicated a midlevel impulse approaching AR,
with attendant forcing for ascent further aiding in storm
development.

Recent weakening trends in storm intensities across northeast OK and
adjacent far northwest AR suggest this portion of WW 298 could be
cleared early from the watch, and may indicate the presence of
subsidence advancing southeast in the wake of the aforementioned
midlevel impulse.

..Peters.. 07/21/2018

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

ATTN...WFO...MEG...JAN...LZK...SGF...SHV...TSA...

LAT...LON 36619482 35649162 35269059 34148947 32548931 32409016
32689090 32969202 33399299 34059337 34649354 34939398
34979438 35309480 35479504 35869520 36619482



------------=_1532162509-1941-1936
Content-Type: text/plain; charset="US-ASCII"
Content-Disposition: inline
Content-Transfer-Encoding: 7BIT

= = =
To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM. ------------=_1532162509-1941-1936--

--- SBBSecho 3.05-Linux
* Origin: Capitol City Online - capitolcityonline.net (1:2320/105)