🌕 🌗 🌑 🌓 Full Moon, sky cover overnight Tue. to Wed. 34% to 94%, winds NE to E, 11 to 7 to 8 MPH, Low 33, 4a to 7a
IMPORTANT NOTE ON NWS DATA
NIGHT FORECASTS …
NOTE: Keep in mind lunar rise and set times don’t always correspond with night weather and early morning lows because on some days during the month the moon is visible in the sky predominantly during the daytime hours.
Overnight Tuesday/Wednesday …
No Weather Hazards expected
No wind gust forecast overnight. Prepare for snow/rain mix late Thursday and Friday
A little cooler morning low Wednesday compared to Tuesday.
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O’HARE FORECAST …
Forecast Beginning Tuesday Night, Mar. 07, 2023 …
Tuesday Night: Increasing clouds, with a low around 32. East wind 5 to 10 mph.
Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 42. East wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night: Increasing clouds, with a low around 33. East wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday: Mostly cloudy, with a high near 41. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night: Rain likely before 9pm, then snow, possibly mixed with rain. Low around 33. Breezy. Chance of precipitation is 90%.
Friday: Snow likely, possibly mixed with rain, mainly before noon. Mostly cloudy, with a high near 36. Chance of precipitation is 60%.
Friday Night: Mostly cloudy, with a low around 27.
Saturday: Mostly cloudy, with a high near 36.
Saturday Night: Mostly cloudy, with a low around 28.
Sunday: Mostly cloudy, with a high near 37.
Sunday Night: Mostly cloudy, with a low around 30.
Monday: Partly sunny, with a high near 38.
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
1110 PM CST Tue Mar 7 2023
.SHORT TERM… Issued at 156 PM CST Tue Mar 7 2023
Through Wednesday night…
An upper-level ridge continues to build into the Great Lakes region this afternoon and is expected to reside over the region through Wednesday. As this ridge has moved in the moisture in the low-levels has continued to scour which has helped to clear out the earlier stratus deck. While the low-levels look to remain dry, mid-level moisture is expected to surge over the area tonight as a shortwave trough ejects across the southern Plains. Guidance is showing that some precipitation would be generated ahead of this shortwave across portions of the southern Plains and even the mid- Mississippi Valley, but the combination of the aforementioned dry low-levels and high cloud bases (around 10,000 ft) over our area should keep us precipitation free through the period. However, sufficient mid- level moisture is expected to spread over the area tonight which will allow cirrus deck to advect overhead and linger into Thursday morning.
Despite the cloud cover, temperatures are expected to remain seasonably mild as warm air advection establishes across the area. This will allow high temperatures to top out in the mid-40s Wednesday afternoon with lows in the low to mid 30s for tonight and Wednesday night.
316 AM CST Wed Mar 8 2023
.SHORT TERM… Issued at 315 AM CST Wed Mar 8 2023
Through Wednesday night…
Quiet weather is expected through Wednesday night ahead of our approaching winter system arriving Thursday (more on that below). Upper ridging remains overhead with the influence of the Canadian surface high pressure keeping us dry and winds generally easterly. On the southwestern fringes of this feature there is just enough low- to-mid level moisture advection and frontogenesis associated with a weak shortwave moving beneath the ridge for light precipitation to develop along the mid-Mississippi River Valley. This may try to sneak eastward into southwestern periphery of our forecast area this morning, though am fairly confident the dry low-levels keep this as virga or at most a stray sprinkle reaches the ground.
Despite the cloudy skies today, temperatures are expected to warm into the mid to upper 40s across much of the area, with the exception being far northeast Illinois and shoreline areas where warming likely stalls near or just above 40 thanks to lake cooled air influences.