Tuesday Hi 37, mostly sunny, winds NW to NE to SE, 9 to 10 to 3 MPH, G15 to 14 MPH until 12p
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ARLINGTON HEIGHTS WEATHER
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Tuesday and Tuesday Evening …
No Weather Hazards expected …
A cold air mass by March standards is spread across the region to start this “pi day” (3/14). The 850 mb temperatures of -12C as observed on Monday evening’s regional soundings are in the bottom tenth percentile for mid March and that`s reflected in temperatures around ten degrees below normal to start Tuesday.
DISCUSSION…
This evening`s setup of 1029 mb high pressure over the area under a clear sky will foster quick radiational cooling. Lows of 15F to 20F are expected for most north of I-80 locations out of the metro.
Lows in the low 20s Tuesday/Wednesday near Arlington Heights.
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O’HARE FORECAST …
Forecast Beginning Tuesday, Mar. 14, 2023
Tuesday: Sunny, with a high near 37. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night: Clear, with a low around 21. Northeast wind around 5 mph becoming south after midnight.
Wednesday: Mostly sunny, with a high near 51. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 41. South southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Thursday: Rain, mainly after 1pm. High near 48. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Thursday Night: Rain. Low around 37. Breezy. Chance of precipitation is 100%.
Friday: A chance of rain and snow, mainly before 1pm. Mostly cloudy, with a high near 38. Breezy. Chance of precipitation is 30%.
Friday Night: Mostly cloudy, with a low around 22. Breezy.
Saturday: Mostly cloudy, with a high near 30. Blustery.
Saturday Night: Mostly cloudy, with a low around 22.
Sunday: Sunny, with a high near 37.
Sunday Night: Mostly clear, with a low around 26.
Monday: Sunny, with a high near 44.
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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 …
NIGHT SKY THIS MONTH …
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Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
603 AM CDT Tue Mar 14 2023
.SHORT TERM… Issued at 211 AM CDT Tue Mar 14 2023
Through Wednesday…
A cold air mass by March standards is spread across the region to start this “pi day” (3/14). The 850 mb temperatures of -12C as observed on last evening`s regional soundings are in the bottom tenth percentile for mid March and that`s reflected in temperatures around ten degrees below normal to start today. The closed upper low responsible for dragging this modified continental polar air mass southward is departing the region, taking its stratocumulus with it. The exception will be lake effect clouds in northwest Indiana with spotty flurries possible this morning. These clouds will depart in the afternoon hours.
This evening`s setup of 1029 mb high pressure over the area under a clear sky will foster quick radiational cooling. Lows of 15F to 20F are expected for most north of I-80 locations out of the metro.
Return flow gradually envelops the area Wednesday. While high clouds may thicken in the afternoon, there should be a fair amount of sun at least in the morning. The residual snow cover in the far northern CWA should melt on Wednesday, but will likely be enough to keep those northern locations sub 50F. Near 50F is expected elsewhere.
MTF/NWS Chicago
