MD 1358 CONCERNING SEVERE POTENTIAL…WATCH UNLIKELY FOR SOUTHWEST LOWER MI…NORTHERN IN
Mesoscale Discussion 1358 NWS Storm Prediction Center Norman OK 1001 PM CDT Wed Jul 19 2017 Areas affected...Southwest Lower MI...Northern IN Concerning...Severe potential...Watch unlikely Valid 200301Z - 200500Z Probability of Watch Issuance...20 percent SUMMARY...Strong thunderstorms are possible across portions of northern IN and southwest lower MI. Isolated damaging winds are the primary threat. DISCUSSION...Long-lived MCS continues its southeast movement across southern WI and northern IL. This complex of storms has cycled and matured, and now appears to be waning with warming cloud tops and weaker wind gusts along the leading squall line. Regional radar data suggests an MCV has evolved within trailing precip shield over southern WI and this feature is moving southeast toward southern Lake MI. While the MCS appears to be weakening somewhat, it remains organized and a well defined squall line is expected to progress across southern Lake MI into northern IN over the next 1-2 hours. Unless severe wind gusts become more common with an upward cycling of this complex a new ww is not anticipated. ..Darrow/Guyer.. 07/20/2017 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...IWX...IND...LOT... LAT...LON 42128665 41738520 40238567 40458735 42128665
from SPC Mesoscale Discussions http://bit.ly/2vl7IcT
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