Waxing Crescent Moon Tuesday night April 09, 2024. YouTube Tips ⓘ
Forecast indicates increasing clouds and increasing threat for heavy rainfall Wednesday night and especially Thursday, particularly east of I-55. Renewed river rises and flooding possible, although uncertainty in exact storm track and placement of heaviest rain totals remains.
According to the National Weather Service Chicago office, there is a strong signal for unseasonably warm weather this weekend into early next week.
Weather Radar shows precipitation moving southwest to northeast in southern Illinois and clear in Chicagoland.
See also Arlingtoncardinal.com/clouds
A period of inclement weather will begin late Wednesday afternoon through Thursday night. There is also an increasing threat for heavy rain Wednesday night into Thursday which could lead to instances of river rises and localized flooding. #ILwx #INwx pic.twitter.com/ta2F5GteK9
— NWS Chicago (@NWSChicago) April 9, 2024
Loyola Medicine Allergy Count for 4-9-2024
Trees – Moderate
Grass – Low
Ragweed – Absent
Weeds – Absent
Mold – Low— Loyola Medicine Allergy Count (@LoyolaAllergy) April 9, 2024
Loyola Medicine Allergy Count for 4-9-2024
Trees – Moderate
Grass – Low
Ragweed – Absent
Weeds – Absent
Mold – Low
O’HARE FORECAST …
Overnight Tuesday/Wednesday: Mostly clear, with a low around 44. Southwest wind around 5 mph.
Wednesday: Increasing clouds, with a high near 67. South southwest wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night: Rain, mainly after 1am. Low around 47. North northeast wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday: Rain. High near 51. Breezy, with a north wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Thursday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 46. West northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Friday: A 20 percent chance of rain before 1pm. Partly sunny, with a high near 58. Breezy.
Friday Night: Mostly clear, with a low around 43. Breezy.
Saturday: Sunny, with a high near 68.
Saturday Night: Partly cloudy, with a low around 55.
Sunday: Mostly sunny, with a high near 75.
Sunday Night: Partly cloudy, with a low around 50.
Monday: Mostly sunny, with a high near 66.
Monday Night: A chance of showers. Partly cloudy, with a low around 50.
Tuesday: A chance of showers. Partly sunny, with a high near 68.
LAKE TEMPS …
SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
912 AM CDT Tue Apr 9 2024
LAKE MICHIGAN WATER TEMPERATURES…
CHICAGO SHORE………..45.
CHICAGO CRIB…………45.
MICHIGAN CITY………..45.
SOUTH MID LAKE BUOY…..41.
&&
M IS FOR MISSING DATA THAT IS NORMALLY AVAILABLE.
THE MICHIGAN CITY WATER TEMPERATURE SENSOR IS LOCATED AT A WATER INTAKE ONE MILE OFFSHORE AND 60 FEET BELOW THE WATER SURFACE. IT IS READ EVERY DAY OF THE YEAR.
april.chicagoweatherstation.com
Chicago Weather Forecast for your MAC/PC/TABLET includes surrounding suburbs.
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Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
1238 AM CDT Wed Apr 10 2024
.KEY MESSAGES…
– Increasing threat for heavy rainfall Wednesday night through Thursday, particularly east of I-55. Renewed river rises and flooding possible, although uncertainty in exact storm track and placement of heaviest rain totals remains.
– Strong signal for unseasonably warm weather this weekend into early next week
&&
.UPDATE… Issued at 900 PM CDT Tue Apr 9 2024
The forecast of a mostly clear and seasonably cool night underneath high pressure remains on track. Nudged forecast lows down a bit into the upper 30s in favored cool spots of interior northern Illinois, with lower to mid 40s elsewhere.
It continues to appear that much of the area will squeeze in another pleasant daytime period before the advertised inclement weather (rain and increasingly windy conditions) moves in Wednesday evening and overnight. With a good amount of sun to start the day, followed by increasing clouds, expecting inland areas to reach the mid to upper 60s, with isolated 70F readings not out of the question. A lake breeze will develop early, limiting highs near the lake to the mid to upper 50s toward mid day, and dropping gradually through the afternoon, with the lake cooling footprint spreading steadily inland.
Kept PoPs (20-40%) confined to south of the Illinois and Kankakee Rivers during the afternoon, highest south of US-24. Slowed down the northward push of rain (tweaked PoPs lower) for areas north of I-80 Wednesday evening, with the bulk of the rain arriving toward and after midnight.
– Castro/NWS Chicago
&&
.DISCUSSION… Issued at 253 PM CDT Tue Apr 9 2024
Through Wednesday:
Winds will generally remain out of the west to southwest and fairly light through Wednesday morning. Skies are expected to be fairly clear overnight which will allow for additional radiational cooling for temperatures to drop back down into the low 40s. Any mid 40s, will likely be south of I-80 under the robust cloud shield from the mid level moisture streaming northeastward.
The next system will gradually move to the northeast out of Texas Wednesday through Thursday. Winds will turn to the south and advect warmer air northward for high temperatures in the 60s, with the exception being for areas closer to Lake Michigan where a lake breeze will turn winds to the northeast and provide slightly cooler temperatures along the shoreline. Most of Wednesday should remain fairly dry, although recent model runs have the warm front moving slightly quicker to the north providing the chances a bit earlier. There was lower confidence in the exact timing on the rain arrival so most of the area south of I-80 was kept at a slight chance for showers (15 to 24 percent) while a sliver of area south of US-24 was given the chance (up to 40 percent) for rain showers to develop tomorrow afternoon. The rain is expected to become more widespread through the night. For those details, see the discussion listed below.
– DK/NWS Chicago