Weather Forecast, Observations Archive NWS O-Hare Wednesday, February 01, 2023

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Wednesday Hi 26, mostly sunny, winds SW, 6 to 13 to 10 MPH, G14 to 20 to 14 MPH, 9a to 5p

Weather forecast for Wednesday, February 01, 2023.
Weather forecast for Wednesday, February 01, 2023.

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ARLINGTON HEIGHTS WEATHER
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Wednesday and Wednesday Night …

Weather Hazards expected …

Elevated Excessive Cold Risk.

Limited Ice Jam Flooding Risk (The highest threat of ice jams is on the Rock, Fox, and Kankakee rivers).

DISCUSSION…

Subzero wind chills are expected Wednesday morning. In addition, some localized river ice jam flooding is possible. Higher temperatures in the 20s today, but the wind chill high is forecast to only 15°F.

Daily low temperatures and daily high temperatures are on the way up. We’re gaining about 2 minutes of daylight every day in the progression toward vernal equinox, March 20, 2023.

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 O’HARE FORECAST … 

Forecast Beginning Wednesday, Feb. 01, 2023

Wednesday: Sunny, with a high near 27. Wind chill values as low as -7. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

Wednesday Night: Mostly clear, with a low around 17. South southwest wind around 10 mph.

Thursday: Increasing clouds, with a high near 29. West southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.

Thursday Night: Mostly clear, with a low around 2. Wind chill values as low as -16. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.

Friday: Mostly sunny, with a high near 12. North northwest wind 5 to 15 mph, with gusts as high as 20 mph.

Friday Night: Mostly cloudy, with a low around 5.

Saturday: Partly sunny, with a high near 35. Breezy.

Saturday Night: Mostly cloudy, with a low around 30. Breezy.

Sunday: Mostly sunny, with a high near 40.

Sunday Night: Partly cloudy, with a low around 26.

Monday: Partly sunny, with a high near 45.

Monday Night: A chance of rain. Cloudy, with a low around 39. Breezy.

Tuesday: Cloudy, with a high near 44.




Weather Forecast, Observations Archive NWS O-Hare

Weather Forecast, Night Sky Archive NWS O-Hare

NWS Wx Observations Header

National Weather Service O’Hare Weather Observations Wednesday, February 01, 2023 (SOURCE: NOAA National Weather Service Chicago)
National Weather Service O’Hare Weather Observations Wednesday, February 01, 2023 (SOURCE: NOAA National Weather Service Chicago).

KORD & KPWK Hourly Weather Observations










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SUNLIGHT DATA FOR SECURITY, TRAFFIC SAFETY, AND SPORTS
SunCalc.net data with solar azimuth and trajectory, times for dawn, sunrise, solar noon, sunset, dusk …

Arlingtoncardinal.com/Weather

 NIGHT SKY THIS MONTH … 

Backyard stargazers get a monthly guide to the northern hemisphere’s skywatching events with “Tonight’s Sky.” Check the night sky objects for this month and past months in the playlist from the Space Telescope Science Institute YouTube channel (Musical track The Far River written by Jonn Serrie, from the album And the Stars Go With You courtesy of New World Music Ltd).





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Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
518 AM CST Wed Feb 1 2023

.SHORT TERM… Issued at 325 AM CST Wed Feb 1 2023

Through Thursday…

Center of the high pressure system responsible for our bout of very cold air is centered across downstate Illinois early this morning. As this high pressure moves east into the Ohio Valley today, southwest winds and warm air advection will commence across our area. The southwest winds and warm advection will continue tonight and into Thursday morning. Snow cover will undoubtedly be a factor in how temps respond to the warm advection. The deepest snowpack in our CWA is across our northern tier of counties, but farther south down to I-80 and even a bit south from there National Operational Hydrologic Remote Sensing Center analysis confirms that what the snowpack lacks in depth it makes up for in density, and in many areas is coated with a layer of ice and sleet.

Given the deep/dense snowpack, undercut guidance temps a bit through Thursday across these areas as the high albedo snow pack should make it hard to fully realize the effects of the WAA, despite considerable sunshine. Mildest temps should be in the urban/dense suburban areas around Chicago where albedo is lower and south of the Kankakee/Vermilion River Valleys where snow cover is less and bare ground is closer.

Cold front will move across the area during the afternoon Thursday, likely resulting in highs being reach earlier in the day northern CWA with nearly steady or slowly falling temps during the afternoon.

– Izzi/NWS Chicago

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