FLUS43 KLOT 300654
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
154 AM CDT Thu Apr 30 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-010700-
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-
154 AM CDT Thu Apr 30 2026 /254 AM EDT Thu Apr 30 2026/

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

.DAY ONE...Early this Morning through Tonight.

Weather hazards expected...

  Limited Frost Risk this morning in interior Northern Illinois.

DISCUSSION...

Patchy frost is expected to develop across far interior northern
Illinois before daybreak, particularly closer to the Wisconsin state
line.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Friday morning...
   Limited Frost Risk this morning in interior Northern Illinois.
Saturday morning...
   Elevated Frost Risk away from Lake Michigan.
Sunday...
  Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

$$

LMZ740>745-010700-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
154 AM CDT Thu Apr 30 2026

This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.

.DAY ONE...Early this Morning through Tonight.

  No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

  No hazardous weather is expected at this time.

$$

Borchardt

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