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ACUS11 KWNS 141645SWOMCDSPC MCD 141645WIZ000-ILZ000-IAZ000-MNZ000-141845-Mesoscale Discussion 1280NWS Storm Prediction Center Norman OK1145 AM CDT Wed Jul 14 2021Areas affected...eastern Iowa...southern WisconsinConcerning...Severe Thunderstorm Watch 377...Valid 141645Z - 141845ZThe severe weather threat for Severe Thunderstorm Watch 377continues.SUMMARY...The threat for isolated strong gusts or marginal hailcontinues mainly from northeast Iowa into southwest Wisconsin. It isunclear if another watch will be needed in the short term.DISCUSSION...A north-south oriented band of storms continueseastward across the watch and is now crossing the MS River. Thisactivity is associated with the leading warm advection ahead of themidlevel wave, with veered low-level winds across central IA feedinginstability eastward.Objective analysis shows less instability ahead of the systemcompared to farther west, but continued theta-e advection and areasof filtered sunshine may aid destabilization enough for some of thisactivity to become severe. While an additional watch is notanticipated in the near term downstream of this ongoing line, trendswill continue to be monitored for strengthening...Jewell.. 07/14/2021...Please see www.spc.noaa.gov for graphic product...ATTN...WFO...GRB...LOT...MKX...DVN...ARX...LAT...LON 44009182 44398875 44278832 43928802 43328783 4290876942578772 42338785 42088848 41949035 42009112 4212913942599134 43139136 43649174 43899184 44009182