Who
Who is affected?
McLean County, Illinois
Issued by NWS Lincoln IL
Region 9 Weather • Live Alert Briefing
Severe Thunderstorm Warning
SignificantMcLean County, IL
Severe Thunderstorm Warning issued September 15 at 6:08PM CDT until September 15 at 6:30PM CDT by NWS Lincoln IL
HeadlineSevere Thunderstorm Warning
Region 9 AreaMcLean County, Illinois
Valid ThroughSep 15, 2026 6:30 PM CDT
What
What is happening?
Severe Thunderstorm Warning
Severity: Severe • Urgency: Immediate • Certainty: Observed
When
When does it matter?
Until Sep 15, 2026 6:30 PM CDT
Onset: Sep 15, 2026 6:08 PM CDT
Where
Where are the Region 9 impacts?
McLean County, Illinois
This briefing intentionally lists only matched Region 9 counties in Illinois. Use the official source link below for the complete NWS product geography.
Why
Why does this matter?
At 606 PM CDT, a severe thunderstorm was located over Carlock, or 7
miles northwest of Normal, moving northeast at 35 mph.
Region 9 Decision Support
What this means for daily decisions
Outdoor Activities
Be ready to move indoors quickly for damaging wind, large hail, lightning, or a tornado warning.
Schools & Youth
Review shelter locations and consider delaying outdoor activities or transportation during the highest-risk window.
Farming & Agriculture
Secure lightweight equipment and structures; move workers and livestock away from exposed areas before storms arrive.
Travel & Commute
Avoid parking under trees or power lines and be prepared for sudden low visibility, debris, hail, and water-covered roads.
Events & Venues
Set a lightning/severe-weather stop trigger and move guests to substantial shelter before storms arrive.
Emergency / Business
Confirm staffing, communications, backup power, and escalation triggers before the most impactful period.
Official NWS Action
What you should do
For your protection move to an interior room on the lowest floor of a
building.
building.
Technical NWS hazard parameters
NWSheadline: A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR SOUTHEASTERN WOODFORD...EAST CENTRAL TAZEWELL AND NORTHWESTERN MCLEAN COUNTIESVTEC: /O.CON.KILX.SV.W.0375.000000T0000Z-260915T2330Z/EAS-ORG: WXRBLOCKCHANNEL: EAS, NWEM, CMASeventEndingTime: 2026-09-15T18:30:00-05:00windThreat: RADAR INDICATEDmaxWindGust: 60 MPHhailThreat: RADAR INDICATEDmaxHailSize: 1.50
Full official NWS alert text
At 606 PM CDT, a severe thunderstorm was located over Carlock, or 7
miles northwest of Normal, moving northeast at 35 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...At 6:03 PM trained weather spotters reported 60-65 mph wind
gusts near the village of Congerville .
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
This severe storm will be near...
Carlock around 610 PM CDT.
Hudson around 615 PM CDT.
This also includes Mackinaw River State Fish and Wildlife Area.
This includes the following highways...
Interstate 39 between mile markers 0 and 12.
Interstate 55 between mile markers 162 and 167.
Interstate 74 between mile markers 113 and 128.
miles northwest of Normal, moving northeast at 35 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...At 6:03 PM trained weather spotters reported 60-65 mph wind
gusts near the village of Congerville .
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
This severe storm will be near...
Carlock around 610 PM CDT.
Hudson around 615 PM CDT.
This also includes Mackinaw River State Fish and Wildlife Area.
This includes the following highways...
Interstate 39 between mile markers 0 and 12.
Interstate 55 between mile markers 162 and 167.
Interstate 74 between mile markers 113 and 128.
Sources
Authoritative and supporting information
National Weather Service alert
Official alert source and authoritative product language.
Storm Prediction Center
Convective outlooks, watches, mesoscale discussions, and severe-weather context.
Original NWS API alert record
Machine-readable authoritative alert record.
Official-source note: Region 9 Weather decision-support guidance supplements, but does not replace, instructions from the National Weather Service and local public-safety officials.