Severe Thunderstorm Warning Issued for Fulton and Mason Counties in Illinois
This alert is no longer in effect.
NOAA issued it on August 15, 2026, 8 days ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Lincoln has issued a Severe Thunderstorm Warning for southern Fulton County and north central Mason County until 2:30 AM CDT.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Fulton and Mason Counties, Illinois
- Issued
- August 15, 2026
- Issuing authority
- NWS Lincoln IL
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 8 days ago; use the issuing agency's live warning service for current conditions in Fulton and Mason Counties, Illinois.
Alert Details
A Severe Thunderstorm Warning has been issued by the National Weather Service in Lincoln IL. The alert is effective from August 15, 2026 at 1:23 AM CDT until August 15, 2026 at 2:30 AM CDT.
Affected Areas
The warning covers Southern Fulton County in west central Illinois and North central Mason County in central Illinois. The storm was located near Adair, or 13 miles east of Macomb, and will be near Ipava around 1:30 AM CDT and Lewistown around 1:40 AM CDT. Other locations in the path include Havana, Rice Lake State Fish and Wildlife Area, and Sand Ridge State Forest.
What You Should Do
For your protection move to an interior room on the lowest floor of a building.
Expected Conditions
At 1:22 AM CDT, a severe thunderstorm was located near Adair moving east at 30 mph. Hazards include 60 mph wind gusts and hail up to .75 inches. Expect damage to roofs, siding, and trees.
Timeline
The warning is in effect until 2:30 AM CDT on August 15, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Similar body length
Nearest notices by article body length (986 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 15, 2026.
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