MD 0709 CONCERNING SEVERE THUNDERSTORM WATCH 217… FOR SOUTHEAST NEBRASKA…SOUTHWEST IOWA…AND NORTHWEST MISSOURI
Mesoscale Discussion 0709
NWS Storm Prediction Center Norman OK
0325 PM CDT Sun May 24 2020
Areas affected...Southeast Nebraska...Southwest Iowa...and Northwest
Missouri
Concerning...Severe Thunderstorm Watch 217...
Valid 242025Z - 242200Z
The severe weather threat for Severe Thunderstorm Watch 217
continues.
SUMMARY...The damaging wind and large hail threat continues across
watch 217.
DISCUSSION...A cluster of storms has developed north of an MCV
located west of Topeka at 20Z. The widespread storm coverage and
subsequent storm interference has limited the intensity of this
convection thus far. The exception is the far eastern cell in this
line which has produced golf ball to baseball sized hail. This will
continue to be the area with the greatest threat for very large hail
given the unimpeded storm inflow. Despite the lack of more intense
storms farther west, these storms still pose a severe threat as the
downstream airmass features 1500 to 2500 J/kg MLCAPE and effective
shear remains around 40 knots per EAX VWP. In addition, surface flow
remains backed ahead of this convection and thus a tornado or two
cannot be ruled out.
..Bentley.. 05/24/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...DMX...EAX...FSD...OAX...TOP...
LAT...LON 40279645 40989666 41669634 42139574 42259526 42179350
41309341 40249359 39829393 39629432 39819478 39949568
40279645
from SPC Mesoscale Discussions https://bit.ly/2zhDHBO
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