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Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
420 AM CDT Mon May 4 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-050930-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
420 AM CDT Mon May 4 2026 /520 AM EDT Mon May 4 2026/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

  Elevated Thunderstorm Risk...with an associated:
     Level 1 of 5 Damaging Wind Risk...up to 60 mph.
     Level 1 of 5 Large Hail Risk...up to around 1 inch in diameter.
  Elevated Blowing Dust Risk.
  Elevated Fire Weather Risk.

DISCUSSION...

This afternoon, strong southwest winds and dry conditions will
likely to blowing dust in open, agricultural areas, especially
near and south of I-80. These conditions will also result in a
somewhat elevated risk of fire spread.

Scattered thunderstorms are expected this evening. The primary
risks with these storms will be cloud to ground lightning, heavy
downpours, and gusty winds. However, there is a slight chance
that a couple of the thunderstorms could become severe early this
evening, capable of producing locally damaging winds and large
hail.

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

  No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

  Due to the isolated nature of any severe weather, spotter
  activation is not anticipated.

GENERAL STORM MOTION OF THE DAY:

 Moving toward the east at 20 to 25 mph.

$$

BLOWING DUST ADVISORY
NWS CHICAGO IL
941 AM CDT MON MAY 4 2026

ILZ019>021-023-032-033-039-107-108-INZ001-002-010-011-019-042300-
/O.CON.KLOT.DU.Y.0001.260504T1600Z-260504T2300Z/
1100 AM CDT MON MAY 4 2026
La Salle IL-Kendall IL-Grundy IL-Kankakee IL-Livingston IL-Iroquois
IL-Ford IL-Southern Will IL-Eastern Will IL-Lake IN-Porter IN-Newton
IN-Jasper IN-Benton IN-

...BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT /7 PM EDT/
THIS EVENING...

* WHAT...Visibility as low as one quarter of a mile in blowing dust
expected. The blowing dust will occur in open agricultural areas.

* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.

* WHEN...Until 6 PM CDT /7 PM EDT/ this evening.

* IMPACTS...Hazardous driving conditions due to reduced visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Visibility could vary rapidly over short distances. Slow down and
exercise caution driving in open areas this afternoon.

$$

Hazard Report Provided By forecast.weather.gov

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