Tuesday Hi 77, partly cloudy, winds SW, 8 to 14 to 10 to 13 MPH, G13 to 21 MPH, 8a to 6p
⏪ Hrly Data Table | Hrly Future Graph ⏩
IMPORTANT NOTE ON NWS DATA
⏪ Hrly Data Table | Hrly Future Graph ⏩
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Tuesday and Tuesday Evening …
Weather Hazards expected …
Elevated Fire Weather Risk.
Fire Weather Watch
Tuesday high temperature 77 well above normal 57.
Very dry and unseasonably warm conditions will increase the risk of brush and grass fires igniting. Winds will increase a bit later this morning into this afternoon, accelerating the spread of any fires that do occur.
FIRE WEATHER WATCH …
URGENT – FIRE WEATHER MESSAGE National Weather Service Chicago IL 319 AM CDT Tue Apr 11 2023
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-Cook- La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford- Lake IN-Porter-Newton-Jasper-Benton- 319 AM CDT Tue Apr 11 2023 /419 AM EDT Tue Apr 11 2023/
…FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING…
The National Weather Service in Chicago has issued a Fire Weather Watch, which is in effect from Wednesday morning through Wednesday evening.
* Affected Area…Lake IN, Porter, Winnebago, Boone, McHenry, Lake IL, Ogle, Lee, Newton, De Kalb, Jasper, Kane, DuPage, Cook, La Salle, Benton, Kendall, Grundy, Will, Kankakee, Livingston, Iroquois and Ford Counties.
* Timing…Wednesday afternoon.
* Winds…Southwest 15 to 20 mph with gusts up to 35 mph.
* Relative Humidity…As low as 20 percent.
* Impacts…Dry fuels, low relative humidity, and strong winds will create conditions favorable for the rapid spread of wildfires.
A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
O’HARE FORECAST …
Forecast Beginning Tuesday, Apr. 11, 2023
Tuesday: Mostly sunny, with a high near 78. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night: Partly cloudy, with a low around 58. Southwest wind 10 to 15 mph.
Wednesday: Sunny, with a high near 83. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 35 mph.
Wednesday Night: Clear, with a low around 57. Southwest wind around 15 mph, with gusts as high as 25 mph.
Thursday: Sunny, with a high near 82. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night: Mostly clear, with a low around 60.
Friday: Partly sunny, with a high near 75.
Friday Night: Mostly cloudy, with a low around 59.
Saturday: A chance of showers, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 72.
Saturday Night: A chance of showers. Mostly cloudy, with a low around 46.
Sunday: A chance of showers. Partly sunny, with a high near 57. Breezy.
Sunday Night: Mostly cloudy, with a low around 40. Breezy.
Monday: Partly sunny, with a high near 54. Breezy.
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 …
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
634 AM CDT Tue Apr 11 2023
.SHORT TERM… Issued at 252 AM CDT Tue Apr 11 2023
Dry and unseasonably warm conditions expected today and tomorrow. The HRRR and RAP tend to outperform other guidance in dry/warm situations with deep mixing and that was definitely the case with Monday`s temps/dewpoints. Nudged high temps up just a smidge Wednesday to be more in tune with the toasty RAP/HRRR. Otherwise, no changes made to short term forecast. Deep mixing and tighter pressure gradient should result in stronger winds Wednesday, with gusts over 30 mph expected from late morning through the afternoon.
– Izzi/NWS Chicago