Persistent low-level southwest winds will provide steady warming of the lower troposphere, with 850-925 mb temperatures peaking Wednesday into Thursday. ![]() This places the Corn Belt and Great Lakes regions under the highest upper level height anomalies that both the ECMWF and GFS ensembles advertise as 150-200m above normal at 500 mb. Mid-range guidance solutions continue advertising a pronounced Rex block generally centered over the Mississippi Valley region during midweek. * Next chance for showers is next weekend but low confidence in evolution of that weather system * Dry and seasonably very warm midweek with highs probable to at least near 80F area-wide Wednesday and Thursday Thankfully, guidance continues to show the shortwave and clouds being progressive which should allow for a period of sun to poke through during the later afternoon and early evening hours on Monday. While precipitation chances continue to look unlikely, sufficient moisture in the upper-levels is expected to persist leading to partly to mostly cloudy skies. However, the shortwave trough currently moving across the north- central Plains is expected to swing through on Monday. Our dry and mild stretch of weather continues with temperatures on Monday once again expected to top out in the mid to upper 60s. ![]() Area Discussion for - Chicago, IL (on/off) Help NOTE: mouseover dotted underlined text for definitionĪrea Forecast Discussion National Weather Service Chicago/Romeoville, IL 1226 AM CDT Mon Apr 10 2023
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