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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, June 26, 2022

SPC Jun 26, 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 Jun 25 2022 Valid 260100Z - 261200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR NORTHEAST MISSOURI INTO CENTRAL AND NORTHERN ILLINOIS... ...SUMMARY... Damaging winds and marginally severe hail will be possible through this evening over parts of northern and central Illinois into northeast Missouri. ...Mid MS Valley... Water-vapor imagery shows a flattened mid-level high centered over AR with the primary belt of westerlies confined to the Upper Midwest in association with a disturbance over southern Canada. A cold front over the mid MS Valley will continue to move east/southeast through tonight. The boundary will aid in focusing storm development this evening over western IL where a warm/moist airmass resides. The Lincoln, IL 00z raob was moderately unstable (1500 J/kg MLCAPE) with a vertical wind profile supporting storm organization. Isolated severe gusts and marginally severe hail will be possible with the stronger storms through mid evening before this threat wanes towards midnight. ...Southwest MO into OK and TX Panhandle... The trailing portion of the front will slowly sag southward this evening. Storms so far have preferentially developed to the north of the boundary and this trend will likely continue. Steep low-level lapse rates (reference 00z Amarillo, TX, Norman, OK, and Springfield, MO raobs) will support a localized risk for severe gusts with the stronger downdrafts. The continued threat for marginally severe hail will likely remain limited through the remainder of the evening as this activity gradually weakens with the loss of heating. ..Smith.. 06/26/2022 Read more CHECK UPDATE ZOOM GRAPHIC
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