SPC MD 779



MD 0779 CONCERNING TORNADO WATCH 234… FOR FAR SOUTHEAST KS…NORTHEAST INTO CENTRAL OK

MD 0779 Image

Mesoscale Discussion 0779
NWS Storm Prediction Center Norman OK
0756 PM CDT Fri May 24 2019

Areas affected...far southeast KS...northeast into central OK

Concerning...Tornado Watch 234...

Valid 250056Z - 250200Z

The severe weather threat for Tornado Watch 234 continues.

SUMMARY...Severe gusts 60-70mph will likely focus where the squall
line is oriented north-south and more favorably aligned with the
mean flow.

DISCUSSION...Radar mosaic shows a line echo wave pattern (lewp) to
the west of the I-44 corridor in OK and extending northeastward
through southeast KS.  The 00z Norman, OK raob showed a lowest 100mb
mean mixing ratio around 15 g/kg with steep lapse rates (8 degrees
C/km) located above a capping inversion (2100 J/kg MLCAPE).  The
veering and strengthening wind profile with height sampled by the
Norman, OK raob will support storm organization with the mean flow
around 215 degrees/35kt.  Expecting the segments of the squall line
more orthogonal with the mean wind to be the mesoscale areas where
an enhanced risk for wind damage and 60-70mph gusts during the next
1-2 hours.  The two separate areas include the greater OKC metro and
portions of Osage County, OK into adjacent portions of southeast KS
where the severe part of the LEWP structure is likely to move.

..Smith.. 05/25/2019

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

ATTN...WFO...SGF...TSA...ICT...OUN...

LAT...LON   34699850 35389844 36259724 37589606 37569519 36929498
            36289559 34869750 34499830 34699850 

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