|Mesoscale Discussion 1179|
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Mesoscale Discussion 1179
NWS Storm Prediction Center Norman OK
0839 PM CDT Wed Jun 28 2017
Areas affected...Southern IA...Northern MO
Concerning...Tornado Watch 375...
Valid 290139Z - 290315Z
The severe weather threat for Tornado Watch 375 continues.
SUMMARY...Severe threat remains bimodal across Tornado Watch 375
with the southern-most threat now concentrated along the IA/MO
DISCUSSION...East-west MCS has evolved along the IA/MO border over
the last few hours and this activity is only slowly sagging south
across the southern-most portion of WW375. Short-range models
suggest a veered LLJ will feed this activity and decoupling may
actually encourage new development along the western flank of this
MCS. If a sufficient cold pool can evolve the MCS may sag into
Livingston/Linn/Macon Counties MO. These counties may be added to
Tornado Watch 375 but the greatest severe risk is actually large
hail and heavy rain.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 40689541 40849406 40529190 39879223 39999424 40069568
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