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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, December 1, 2021

SPC Dec 1, 2021 1730 UTC Day 2 Convective Outlook

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1116 AM CST Wed Dec 01 2021 Valid 021200Z - 031200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A couple of weak thunderstorms are possible near the Rio Grande River and higher terrain of southwest Texas, but the risk of thunderstorms appears negligible elsewhere Thursday through Thursday night. ...Synopsis... Northwesterly mid/upper flow will persist across much of the U.S. on Thursday. A somewhat flat upper ridge will migrate east/southeast from the southern Rockies to the lower MS Valley as a shortwave trough develops over the southern High Plains late in the period. Surface high pressure over the southeastern states and developing lee troughing over the High Plains will allow for southerly low-level flow transporting Gulf moisture north and west across parts of TX. As the upper shortwave trough approaches the Rio Grande, weak destabilization amid this warm advection regime should support a few thunderstorms across southwest TX, though severe potential will remain low. Dry and stable conditions will envelop much of the rest of the CONUS, negating thunderstorm potential. ..Leitman.. 12/01/2021 Read more LIVE: