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| Mesoscale Discussion 1422 | |
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Mesoscale Discussion 1422 NWS Storm Prediction Center Norman OK 0609 PM CDT Mon Jun 23 2025 Areas affected...portions of central and eastern Wisconsin Concerning...Severe Thunderstorm Watch 455... Valid 232309Z - 240045Z The severe weather threat for Severe Thunderstorm Watch 455 continues. SUMMARY...A well-organized bowing cluster of severe storms will continue to pose a risk for damaging wind gusts this evening. An isolated gust to 75 mph is also possible. DISCUSSION...Across central WI, a cluster of thunderstorms has shown continued intensification/organization early this evening within WW455. North of KMSN, single site radar imagery shows an accelerating bowing cluster with recent reports of damage. In addition to increasingly strong radar/satellite features, area observations show outflow temperatures 20-25 F cooler behind line, indicative of a well-formed and deep cold pool. These convective trends within a very buoyant/moderately sheared environment strongly suggest a continued threat for wind damage downstream across central and eastern WI over the next couple of hours. Additionally, an isolated significant gust to 75 mph is possible given the increased forward speed and strong downdraft potential at the apex of the bowing cluster. Given the continued potential for damaging gusts, WW455 will be expanded locally ahead of the bow. ..Lyons.. 06/23/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...GRB...MKX...ARX... LAT...LON 43269070 43339054 43599025 44188956 44398912 44398792 44298746 43968769 43328778 42958781 42688774 42768992 42919045 43269070 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN |
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