SPC MD 1087

MD 1087 CONCERNING SEVERE THUNDERSTORM WATCH 283…284… FOR PORTIONS OF NORTHEAST KANSAS INTO WESTERN MISSOURI

MD 1087 Image


Mesoscale Discussion 1087
NWS Storm Prediction Center Norman OK
0243 PM CDT Thu Jul 19 2018

Areas affected...Portions of northeast Kansas into western Missouri

Concerning...Severe Thunderstorm Watch 283...284...

Valid 191943Z - 192115Z

The severe weather threat for Severe Thunderstorm Watch 283, 284
continues.

SUMMARY...A corridor of damaging winds will remain possible near
I-70 from Topeka eastward this afternoon. These storms are expected
to reach western portions of the KC metro around 4pm.

DISCUSSION...A cluster of severe thunderstorms, capable of damaging
winds at times approaching 75+ mph, is progressing east around 45
mph along the I-70 corridor this afternoon. Ahead of this cluster,
visible satellite illustrates towering cumulus, suggesting a
sufficiently unstable downstream environment. This is supported by
the 18Z TOP sounding, which sampled steep low/mid-level lapse rates
and ample northwesterly 700-500mb flow. Furthermore, dry air beneath
500mb will enhance evaporative cooling within downdrafts already
augmented by the aforementioned strong flow. All of these factors
will likely maintain a threat of severe wind gusts (some possibly
75+ mph) reaching the KC metro (especially western portions) around
4pm.

..Picca.. 07/19/2018

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

ATTN...WFO...EAX...TOP...ICT...

LAT...LON   39559684 39629493 39439459 38969444 38359454 38289513
            38539656 38899710 39239712 39559684 

Read more

from SPC Mesoscale Discussions http://bit.ly/2uOZLx1

Leave a Reply