Strong to Severe Storms Expected Today

                        
965
FLUS43 KILX 201030
HWOILX

Hazardous Weather Outlook
National Weather Service Lincoln IL
530 AM CDT Mon Jul 20 2026

ILZ027>031-036>038-040>043-047-048-211030-
Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Schuyler-
Mason-Logan-De Witt-Cass-Menard-
530 AM CDT Mon Jul 20 2026

This Hazardous Weather Outlook is for central Illinois and west
central Illinois.

.DAY ONE...Today and tonight.

Smoke from Canadian Wildfires will linger for one more day across
central IL, causing air quality that is Unhealthy for Sensitive
Groups, and an Air Quality Alert is in effect.

Storm chances will be present for a couple hours around Noon today,
as a dissipating storm complex arrives. A higher threat for strong to
severe storms will come toward midnight tonight, with damaging
downburst winds the main hazard.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Afternoon heat index values near 100 are possible Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed late this evening and
overnight for areas north of a line from Beardstown to Bloomington.

Expected storm motion is toward the southeast around 40 mph.

$$

ILZ044>046-049>057-061>063-066>068-211030-
Piatt-Champaign-Vermilion-Scott-Morgan-Sangamon-Christian-Macon-
Moultrie-Douglas-Coles-Edgar-Shelby-Cumberland-Clark-Effingham-
Jasper-Crawford-
530 AM CDT Mon Jul 20 2026

This Hazardous Weather Outlook is for central Illinois, east
central Illinois, southeast Illinois and west central Illinois.

.DAY ONE...Today and tonight.

Smoke from Canadian Wildfires will linger for one more day across
central and southeast IL, causing air quality that is Unhealthy for
Sensitive Groups, and an Air Quality Alert is in effect.

Storm chances will return later this evening and overnight. There is
a Marginal Risk of severe storms, with damaging downburst winds the
main hazard.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Strong to severe storms are possible again Tuesday afternoon in
southeastern Illinois. The main severe threats with these storms will
be damaging winds, hail around 1 inch, and a brief tornado or two.

Afternoon heat index values near 100 are possible on Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed late this evening and overnight.

Expected storm motion is toward the southeast around 40 mph.

$$

ILZ071>073-211030-
Clay-Richland-Lawrence-
530 AM CDT Mon Jul 20 2026

This Hazardous Weather Outlook is for southeast Illinois.

.DAY ONE...Today and tonight.

Smoke from Canadian Wildfires will linger for one more day across
southeast IL, causing air quality that is Unhealthy for Sensitive
Groups, and an Air Quality Alert is in effect.

Storm chances will return later tonight. The chances of severe
weather are low, but gusty winds and heavy downpours may cause some
minor impacts.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Strong to severe storms are possible Tuesday afternoon in
southeastern Illinois. The main severe threats with these storms will
be damaging winds, hail around 1 inch, and a brief tornado or two.

Afternoon heat index values near 105 are possible on Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

$$

Shimon