TUESDAY NIGHT: Cloudy, windy and chilly with showers likely, mainly this evening. Winds: West 15-25 mph gusting to 40 mph. Low: 41.
Stubborn cloud cover is expected to hang on much of the day on Wednesday, with a slight chance of seeing a few peeks of sun later in day across the far south/southwest suburbs, but that’s hardly a sure thing.
Surface map
Low pressure over the Great Lakes will continue to funnel in cool air and a brisk west to northwest wind.
Wednesday day planner
A chilly late October day is on tap with temperatures holding in the 40s for most of the day. The last time a daytime high was 50 degrees or colder was back on April 10th when the high peaked at a chilly 43 degrees.
Wednesday peak wind gusts
Winds will remain elevated throughout the day adding to the early season chill.
Wednesday wind chills
Early morning wind chills are likely to dip into the middle 30s for much of the area. Bundle up as you head to work or school. Even by mid-afternoon, blustery winds will make it “feel” like the low 40s for many locations except for the far southwest suburbs where a few peeks of sun are most likely to occur.
Current Conditions
Next Few Hours
Extended Outlook
Current Upper Northwest Steering winds responsible for the chilly temperatures retreats northeast into Canada allowing milder air to return to the Chicagoland area over the coming weekend.
Chicago forecast high temperatures and departure From normal
Early Autumn chill slowly breaks down giving way to milder, more seasonable air this weekend and into next week.
6-10 day temperature outlook: October 27 through 31
Milder than normal overall temperatures predicted for the final days of October across the Great Lakes and Upper Midwest.
Tropical Storm Melissa forms in the Caribbean
Tropical Storm Melissa is a slow-moving storm with heavy rains expected to overspread Hispaniola during the next couple of days.
Goes-19 satellite/radar depiction of the storm:
Potential track of Melissa based off the ECMWF Model
Central pressure reaches 992 mb which would be enough for at least a Category 1 hurricane.
Melissa official National Hurricane Center track
Very slow moving system which is likely to produce torrential rain. Melissa will bring heavy rainfall to Haiti and the Dominican Republic, with totals of 5 to 10 inches expected through Friday.
Melissa tropical storm force winds
Tropical Storm force winds may reach parts of Jamaica by Thursday.
Tropical Storm Melissa rainfall projections
Heaviest totals predicted to fall over portions of the Dominican Republic
Key Tropical Storm Melissa Messages from the National Hurricane Center:
- Melissa is expected to bring heavy rainfall and the risk of
significant flash flooding and the danger of landslides to portions
of Haiti and the Dominican Republic through the weekend. - Hurricane conditions are possible in the southwestern peninsula
of Haiti where a Hurricane Watch is in effect. A Tropical Storm
Watch is in effect for Jamaica. Preparations to protect life and
property should be completed by Thursday. - There is significant uncertainty in the track and intensity
forecast of Melissa. Interests elsewhere in Hispaniola and Cuba
should continue to monitor the latest forecasts.
Climate and Environment news: WGN Weather Center blog
Bill Snyder
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