The much broadcast and published lake enhanced cold front or ‘pneumonia front’ is racing south across Lake Michigan early Tuesday afternoon. Temperatures ahead of the front are warming into the mid to upper 70s and low 80s this afternoon. The forecast for the cold front arrival time remains unchanged from the morning update with the expectation that it reaches far northeast Illinois between 4-5pm, Chicago between 5-6pm, and northwest Indiana and the outer Illinois suburbs 6-7pm.
Arlington Heights and surround communities will probably begin to notice the drop about 6:00 p.m., but temperatures could drop ahead of schedule.
A slightly earlier arrival of the cold front is possible. Take a jacket or a hoodie to prepared for a 15-20+ degree drop and gusty winds to 20-30 mph in the immediate wake of the cold frontal passage.
The air temperature is forecast to drop to 60°F by 7:00 p.m. at O’Hare International Airport.
Lows tonight dip into the lower-mid 40s north of I-88 and upper 40s to near 50 south.
Weather Radar in northeast Illinois was clear.
See also Arlingtoncardinal.com/clouds
WEATHER HAZARD …
Weather hazards expected…
Limited Non Thunderstorm Wind Risk.
A lake enhanced cold front may bring a brief period of northerly wind gusts up to 35 to 40 mph to parts of northeast Illinois this evening, especially near Lake Michigan. In addition to the gusty winds, expect rapidly falling temperatures behind the front.
O’HARE FORECAST …
Tuesday Afternoon: Mostly sunny, with a high near 81. West northwest wind around 10 mph, with gusts as high as 15 mph.
Tuesday Night: Partly cloudy, with a low around 47. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday: Mostly sunny, with a high near 62. East northeast wind around 10 mph, with gusts as high as 15 mph.
Wednesday Night: Partly cloudy, with a low around 46. Northeast wind 5 to 10 mph becoming southeast after midnight.
Thursday: Mostly sunny, with a high near 75. South southeast wind around 10 mph.
Thursday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 58.
Friday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 73. Chance of precipitation is 60%.
Friday Night: Partly cloudy, with a low around 51.
Saturday: Sunny, with a high near 70.
Saturday Night: Mostly clear, with a low around 54.
Sunday: Sunny, with a high near 77.
Sunday Night: Mostly clear, with a low around 51.
Monday: Mostly sunny, with a high near 69.
LAKE TEMPS …
SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
910 AM CDT Tue May 16 2023
LAKE MICHIGAN WATER TEMPERATURES…
WINTHROP HARBOR BUOY….51.
MICHIGAN CITY BUOY……53.
SOUTH MID LAKE BUOY…..44.
NORTH MID LAKE BUOY…..39.
M IS FOR MISSING DATA THAT IS NORMALLY AVAILABLE.
THE MICHIGAN CITY WATER TEMPERATURE SENSOR IS LOCATED AT A WATER
INTAKE ONE MILE OFFSHORE AND 60 FEET BELOW WATER SURFACE. IT IS READ
EVERY DAY OF THE YEAR.
Chicago Weather Forecast for your MAC/PC/TABLET includes surrounding suburbs.
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