As a cold front moves through central Illinois tonight and Thursday, a tropical air mass will result in a significant potential for thunderstorms with very heavy rain. Some of the storms may also be severe.
Areas of Greatest Concern
- Heavy rain threat: Locations generally west of I-55, including Galesburg, Peoria, Havana, Jacksonville, and Springfield.
Severe weather threat: Locations northwest of the Illinois River, with the best chances during the evening.
Heavy Rain Potential
- Amounts of 1 to 2 inches are likely in general.
- Locally heavier amounts greater than 2 inches, falling at a very quick rate, are possible due to the tropical air mass
Severe Weather Potential
- Strong to severe storms will begin moving into areas northwest of the Illinois River during the evening.
- Main threat will be damaging wind gusts.
- Storms with strong wind gusts are possible elsewhere across central Illinois toward midnight and beyond, but the threat will be diminishing with time.
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