Accurate snow accumulation forecast on grassy surfaces is a difficult forecast today. Snow is not likely to accumulate on pavement.
Significant precipitation for Chicagoland is connected to an approaching mid-upper level low and associated TROWAL (short for TROugh of Warm air ALoft). Some brief snow showers passed through Arlington Heights about 6:30 a.m., but there was no accumulation. Air temperature was well above freezing overnight at about 38°F, and the low this morning was about 35°F. Temperatures of 35°F to 36°F are expected to hold all the way through until the precipitation period ends at about midnight Sunday/Monday. If snow accumulates at all in Arlington Heights, it will be very wet and slushy, and accumulate to about 1 to 1.3 inch by 6:00 p.m. Sunday (on grass, not pavement). At 7:17 am., WGN is reporting the possibility of several inches of snow on grassy surfaces in some areas in northern Chicagoland.
At 7:40 a.m. there is mixed rain and snow. Heavier snow showers will begin in Arlington Heights by about 8:30 a.m.
There won’t be much, if any, snow south and east of I-55.
Rain will mix with/change to wet snow this morning with localized accumulations of a couple/few inches possible on grassy/elevated surfaces pic.twitter.com/zPy4t5bFDQ
— NWS Chicago (@NWSChicago) April 14, 2019
Late-season storm to bring heavy, wet snow to portions of the Chicago area https://t.co/wEuvpNtu9p
— Skilling (@Skilling) April 14, 2019
O’HARE FORECAST …
Today: Rain and snow. Some thunder is also possible. High near 37. Breezy, with a north northeast wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight: Rain and snow likely, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 31. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday: Mostly sunny, with a high near 49. West northwest wind 5 to 10 mph becoming south southwest in the afternoon.
Monday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 43. South southeast wind around 5 mph, with gusts as high as 10 mph.
Tuesday: Mostly cloudy, with a high near 65. South southwest wind 5 to 10 mph.
Tuesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Cloudy, with a low around 51. Chance of precipitation is 30%.
Wednesday: A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 67.
Wednesday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 55.
Thursday: Showers and thunderstorms likely, mainly before 1pm. Cloudy, with a high near 67.
Thursday Night: A chance of showers. Mostly cloudy, with a low around 47.
Friday: A chance of showers. Mostly cloudy, with a high near 57.
Friday Night: A chance of showers. Mostly cloudy, with a low around 40.
Saturday: A slight chance of showers. Partly sunny, with a high near 57.
LAKE TEMPS …
SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
903 AM CDT Sat Apr 13 2019
LAKE MICHIGAN WATER TEMPERATURES…
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.
^^ MOBILE? USE VOICE MIC ^^
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