ACUS11 KWNS 272307 SWOMCD SPC MCD 272307 WIZ000-280030- Mesoscale Discussion 0881 NWS Storm Prediction Center Norman OK 0607 PM CDT Wed May 27 2026 Areas affected...portions of central Wisconsin Concerning...Severe potential...Watch unlikely Valid 272307Z - 280030Z Probability of Watch Issuance...20 percent SUMMARY...The severe risk associated with an ongoing multicell cluster across central Wisconsin should gradually decrease over the next 1-2 hours. Isolated large hail and damaging wind gusts remain possible in the meantime, however. DISCUSSION...A multicell cluster with a embedded supercell structures continues to track southward along and west of the I-39 corridor in central Wisconsin having produced several reports of hail up to 2" in diameter and damaging wind gusts in the Wausau, Wisconsin, vicinity over the past 1-2 hours. Expectation is for this cluster to persist for another hour or two as it propagates southward along an east-west oriented cold front and to the west of a weak, north-south oriented lake breeze. Latest objective analysis indicates that available buoyancy generally decreases with southward extent. Coupled with the gradual onset of nocturnal low-level cooling/stabilization, this should yield a gradual weakening of this cluster with time. Modestly steep mid-level lapse rates and around 30 kts of effective shear amid moderately strong northwesterly flow aloft (as sampled by the GRB VWP) will continue to promote a risk for large hail with the strongest updrafts in the meantime, however. Steep low-level lapse rates west of the lake breeze boundary will also support a continued threat for isolated damaging wind gusts. ..Chalmers/Guyer.. 05/27/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...GRB...MKX...ARX...MPX... LAT...LON 43228974 43479027 43929079 44389109 44699122 44859120 44969112 44859060 44799038 44718998 44558952 44438942 43948939 43578936 43268937 43188967 43228974 MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN