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Archives for the SPC Convective Outlook are updated daily (approximately) with a live map at the beginning of each article. Follow the link at the end of the article to check for current updates on the NOAA/NWS Storm Prediction Center website. Also, see Archives for Chicago's hourly weather data on CARDINAL NEWS Magazine.


Sunday, May 15, 2022

SPC May 15, 2022 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0756 PM CDT Sat May 14 2022 Valid 150100Z - 151200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR SOUTHWEST KS INTO NORTHWEST OK THIS EVENING...AND FOR NORTHERN KS/SOUTHERN NE OVERNIGHT... ...SUMMARY... Widely scattered severe thunderstorms remain possible this evening from western Kansas into northwest Oklahoma, with other strong storms possible overnight across parts of northern Kansas and southern Nebraska. Large hail and locally damaging wind gusts are the main threats. ...KS into northwest OK this evening... A few supercells are ongoing this evening from western Kansas into northwest Oklahoma this evening, within an environment of moderate buoyancy/deep-layer shear. Steep midlevel lapse rates will support a hail risk with the remaining cells through much of the evening, though a gradual decreasing trend is expected after sunset, with the onset of nocturnal cooling/stabilization. ...Northern KS into south-central/southeast NE overnight... As a midlevel shortwave trough approaches from the west late tonight, elevated convection is expected to develop near and north of a frontal boundary, from northern KS into southern parts of NE. Moderate buoyancy and increasing deep-layer shear will support the potential for a few organized clusters and/or elevated supercells, with a primary threat of large hail. ...Lower MS Valley into the Great Lakes... Isolated strong storms may continue for another 1-2 hours from the lower MS Valley into the Great Lakes, but a weakening trend is expected as these primarily diurnal storms generally weaken with time this evening. ..Dean.. 05/15/2022 Read more CHECK UPDATE ZOOM GRAPHIC
SUNRISE AND SUNSET TIMES IN UTC (if you're not logged in to Google)
CHICAGO UTC-6 during CST (Central Standard Time, e.g., winter)
CHICAGO UTC-5 during CDT (Daylight Savings Time, e.g., summer)