#SPC issues Day 2 Enhanced Convective Risk at Jun 17, 6:13z for ILX spc.noaa.gov/products/outlo…

Scattered thunderstorms developing across NE Missouri should gradually move northeast in Illinois late this afternoon and early evening. These storms will mainly impact our area between 6 pm and 10 pm with locally strong winds and heavy downpours possible.

Expect a general uptick in storm coverage over the next few hours as this complex of storms moves from west to east across the region. Widespread severe weather is not expected but locally strong wind gusts and heavy rain are possible with the strongest storms.

9 PM Radar Update Scattered showers and storms are most widespread east of the Illinois River and approaching I-55. The storms are producing heavy downpours and frequent lightning. Further west light rain showers were occurring and will remain possible throughout the night.

Scattered rain showers will linger across the region through this evening, gradually coming to an end around or shortly after midnight. Drier and hotter conditions are expected for the remainder of the week with temperatures in the 90s this weekend with heat indices over 105°.

Heat Advisories are in effect for all of Central Illinois through Tuesday, June 24th as oppressive heat and humidity is expected. Heat index values will consistently be between 105° and 110° every afternoon. Highs each day will be in the 90s with lows in the 70s.

The radar out of Davenport shows an outflow boundary (thin line) surging southeast away from the parent storms. As I mentioned in my previous post, this boundary may spark an isolated shower or two west of the Illinois River though most will remain dry.

A few showers have started developing across the region and will remain possible throughout the afternoon and evening. These storms should remain hit-and-miss so not everyone will see rain. Those that do may experience a heavy downpour and locally gusty winds. Posted 6/24/25

A Severe T-Storm Warning has been issued for Henry County through 4:45 pm. Wind gusts up to 60 mph and penny size hail are possible. Storm is moving east at 25 mph. Posted 6/24/25

Despite little to no wind shear sthe storms in Bureau, La Salle, and Putnam County have shown signs of very weak rotation as they appear to be hooked on to surface boundary. Storms could post a risk of damaging winds, small hail, and perhaps a brief/weak tornado.

Severe T-Storm Warning issued for La Salle and NW Livingston Counties until 7:00 PM. Wind gusts up to 60 mph, Penny size hail, and funnel clouds are possible. Storm is moving east at 30 MPH.

As of 8:08 pm storms in the area have weakened and pose little to no risk of severe weather. Additional storms will be possible overnight as additional waves approach from the west. These should remain below severe limits but may produce heavy downpours and some gusty winds.

The next batch of storms continues to build to our west. Severe weather is not expected but heavy downpours and locally gusty winds will be possible. Highest storm chances remain north of a Macomb to Pontiac line.

Many beautiful storms today from a few miles east of Varna! Love it when supercells are visible from my backyard. The timelapse show storms to my north along with a few images from both storms (also to my north, and the rest to my west). #ilwx And☈ew G☈iffiths Chris Yates - WMBD Chief Meteorologist

Scattered showers and storms are developing across the area. One area of focus is along an outflow boundary stretching from Knox to Livingston County with another cluster approaching from the southwest. Storms will produce heavy downpours and locally strong downburst winds.