🌗 🌑 🌓 🌕 Last Quarter Moon, sky cover overnight Mon. to Tue., 95% to 49 to 67%, winds NW, 21 to 17 MPH, G32 to 24 to 25 MPH, Low 32, 6a to 7a
IMPORTANT NOTE ON NWS DATA
No Watches or Warnings overnight Monday to Tuesday.
Updates at Arlingtoncardinal.com/NWSChicago
Accumulating lake effect snow looks to remain east of the forecast area overnight Monday to Tuesday. Snow flurries predicted to peak at around 4:00 p.m. Monday did not develop. Peak snow flurry activity was actually about 8:50 a.m. to 9:15 a.m. Monday in Arlington Heights. There was no accumulation, but the snow flurry activity was the first significant snow flurry even of the 2022-23 Winter Season.
O’HARE FORECAST …
Forecast Beginning Monday Night, Oct. 17, 2022
O’HARE FORECAST …
Monday Night Isolated snow showers before 1am. Mostly cloudy, with a low around 32. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Tuesday Cloudy, with a high near 45. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Tuesday Night Partly cloudy, with a low around 31. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Sunny, with a high near 48. West wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night Partly cloudy, with a low around 33. West southwest wind 5 to 10 mph.
Thursday Mostly sunny, with a high near 54.
Thursday Night Mostly cloudy, with a low around 37.
Friday Mostly sunny, with a high near 64.
Friday Night Mostly clear, with a low around 48.
Saturday Mostly sunny, with a high near 70.
Saturday Night Partly cloudy, with a low around 52.
Sunday Partly sunny, with a high near 72.
Sunday Night A chance of showers. Mostly cloudy, with a low around 56.
Monday A chance of showers. Mostly cloudy, with a high near 68.
O’Hare forecast archive and hourly weather observations archive are available HERE on the CARDINAL NEWS Magazine.
NIGHT SKY THIS MONTH …
Check the night sky objects for this month and past months in the playlist from the Space Telescope Science Institute YouTube channel Backyard stargazers get a monthly guide to the northern hemisphere’s skywatching events with “Tonight’s Sky” (Musical track The Far River written by Jonn Serrie, from the album And the Stars Go With You courtesy of New World Music Ltd. Musical track The Far River written by Jonn Serrie, from the album And the Stars Go With You courtesy of New World Music Ltd).
Telephoto lens, ISO 100, f/11, Shutter Speed 1/100 to 1/125 for the Moon.
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Telephoto lens, ISO 1600, f/11, Shutter Speed 2.5″ for the skyline. The skyline exposure was toned down, and brightness and contrast was adjusted in Photoshop.
Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
1004 PM CDT Mon Oct 17 2022
Issued at 1004 PM CDT Mon Oct 17 2022
Cancelled the Winter Weather Advisory for Porter and Jasper counties in northwest Indiana overnight, as best focus for any travel impacts from accumulating lake effect snow looks to remain east of the forecast area. Otherwise, forecast is generally on track with light snow showers and flurries generally decreasing in coverage late this evening west and southwest of Lake Michigan.
Regional radar coverage since mid-afternoon has depicted the primary lake convergent axis along the eastern shore of Lake Michigan, with associated heavier lake effect precipitation focused mainly across far southwest lower Michigan and north central Indiana. High-res CAM guidance indicates this trend will continue over the next several hours, with the probability of travel impacts associated with any accumulating snow over Porter and Jasper counties continuing to diminish. Based on this, and being past the evening heavier travel period, have elected to cancel the winter weather advisory for those counties. Less organized rain/snow showers will likely affect northwest Indiana into the overnight hours, though with no significant accumulations expected.
Elsewhere, scattered snow showers which were associated with an earlier mid-level short wave have diminished/dissipated across northern IL and parts of the IL/IN state line region. A few flurries may linger at times into the overnight hours. Blustery northwest winds will persist with gusts of 25 to 30 mph at times, and up to 40 mph along the immediate Indiana lakeshore. With strong northerly winds persisting, have made no changes to current Lakeshore Flood Advisory which continues through Tuesday.
Updated products available.