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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.


Friday, April 15, 2022

SPC Apr 15, 2022 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0351 AM CDT Fri Apr 15 2022 Valid 181200Z - 231200Z ...DISCUSSION... Medium-range models suggest that seasonably cool/dry conditions will prevail across most areas east of the Rockies by early next Monday. It appears that this will include much of the Atlantic Seaboard, except, perhaps parts of the coastal Southeast, before an amplifying mid-level wave digs southeast of the Upper Midwest/Great Lakes and reinforces these conditions in the wake of associated cyclogenesis from the northern Mid Atlantic coast into southeastern Canada. However, mid/upper flow is forecast to remain generally progressive across much of North America, and it does appear that a return flow of moisture may commence across the lower Rio Grande Valley into at least portions of the southern Great Plains by the middle of next week. It is possible that this could contribute to some potential for strong thunderstorm development as early as Wednesday, but this may remain fairly isolated as forcing for ascent with the primary mid-level wave crossing the Rockies remains confined to higher latitudes. In general, it appears that severe weather probabilities will remain relatively low (particularly for the time of year), at least into late next week or next weekend, when models continue to indicate that amplified large-scale mid-level troughing may develop inland of the Pacific coast through much of the Intermountain West and Rockies. If this occurs, it should support deepening surface troughing to the lee of the Rockies and destabilization associated with an increasingly moist southerly return flow. 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)