|Mesoscale Discussion 1176|
< Previous MD Next MD >
Mesoscale Discussion 1176
NWS Storm Prediction Center Norman OK
0632 PM CDT Wed Jun 28 2017
Areas affected...Northern IL
Concerning...Severe potential...Watch likely
Valid 282332Z - 290030Z
Probability of Watch Issuance...80 percent
SUMMARY...Tornado watch will likely be need soon for northern IL.
DISCUSSION...Maturing MCS is organizing over northeast IA/southwest
WI. Latest radar data suggests an expanding cold pool will aid
east-southeast propagation of an elongating corridor of severe
thunderstorms such that convection should spread south of WW377.
Shear profiles remain supportive of storm rotation and isolated
tornadoes can not be ruled out, though the primary storm mode may be
clustering rather than discrete supercells.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 42468941 42478792 42058763 41838812 41908961 42468941
Top/All Mesoscale Discussions/Forecast Products/Home