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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.


Wednesday, April 19, 2023

SPC Apr 19, 2023 0100 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 0100Z Day 1 Outlook Day 1 Convective Outlook CORR 1 NWS Storm Prediction Center Norman OK 1048 PM CDT Tue Apr 18 2023 Valid 190100Z - 191200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF SOUTH DAKOTA...NEBRASKA...WESTERN/CENTRAL IOWA...AND SOUTHWEST MINNESOTA... CORRECTED FOR VALID TIME ERROR ...SUMMARY... Isolated severe thunderstorms are possible the remainder of the evening into the overnight hours across parts of South Dakota, Nebraska, southwest Minnesota and western/central Iowa. ...01z Update... The Marginal risk (Level 1 of 5) has been removed along much of the dryline from KS into western OK/northwest TX. Isolated thunderstorms will continue near the NE/KS border, shifting east/northeast through the remainder of the evening, but additional thunderstorm development is unexpected further south. Thunderstorms over eastern WY into western SD/NE will percolate eastward, and some additional development is expected overnight with this activity, as well as an increase in coverage with the south-central NE cluster. As this convection shifts east/northeast overnight toward eastern SD, southwest MN and western/central IA, sporadic strong gusts and hail will be possible. ..Leitman.. 04/19/2023 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)