SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook CORR 1 NWS Storm Prediction Center Norman OK 0758 PM CDT Fri Aug 19 2022 Valid 200100Z - 201200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM SOUTHEASTERN MINNESOTA AND SOUTHWESTERN WISCONSIN SOUTH TO NORTHERN MISSOURI... CORRECTED TO ADD LESS THAN 2% LABEL TO TORNADO GRAPHIC ...SUMMARY... A couple of instances of large hail and/or strong gusts remain possible through mid evening acros portions of the Middle Mississippi Valley. ...Discussion... Thunderstorms continue to swirl around an upper low drifting southward across southwestern Minnesota toward northwestern Iowa this evening. The strongest storms are ongoing over eastern Iowa and into adjacent southwestern Wisconsin/northwestern Illinois, near an axis of moderate instability (1500 to 2500 J/kg mixed-layer CAPE) just ahead of the surface cold front. As the boundary layer continues to gradually cool diurnally, storm intensity will gradually decrease. In the mean time however, a few stronger storms will continue to pose risk for marginal hail and/or strong wind gusts. ..Goss.. 08/20/2022
