The chilly weather which lurched into the Chicago area from Canada earlier this week is going nowhere the next few days. NW winds aloft are to keep a supply of cool air coming, promising to make the 11th weekend here since meteorological autumn began Sept. 1 the coolest yet. Hopes for 60s on Sunday (Veterans Day) will be delayed a day (until Monday) as a result of anticipated clouds and scattered showers, expected to fall into initially dry air Sunday and evaporate. The cooling effect of evaporation is evident to us every time we step out of a bathtub or swimming pool and feel the chill which is produced as evaporation absorbs heat from our skin.
The season’s first official snowflakes are on the books in Chicago. Flurries were first observed at O’Hare beginning 10:51 p.m. Wednesday. They continued sporadically for an hour and 49 minutes, finally ending at 12:40 a.m. The city’s first flakes typically arrive October 30.
--By Tom Skilling, WGN-TV Chief Meteorologist
