685
FLUS43 KLOT 140934
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
434 AM CDT Wed May 14 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-150945-
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-
434 AM CDT Wed May 14 2025 /534 AM EDT Wed May 14 2025/

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

.DAY ONE...Today and Tonight.

Weather hazards expected...

  Significant Fog Risk this morning.
  Limited Thunderstorm Risk.

DISCUSSION...

Areas of dense fog over northeast Illinois early this morning will
likely be confined to patchy fog near the lakeshore by the mid
morning.

Isolated thunderstorms are possible this afternoon and early
evening, mainly inland of Lake Michigan. Severe weather is not
expected with this activity. Additional isolated thunderstorms are
possible late tonight. If storms develop, some may be capable of
producing hail.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
  Limited Thunderstorm Risk...with an associated:
     Level 2 to 3 of 5 Severe Thunderstorm Risk.
  Elevated Fire Weather Risk.
Friday...
  Significant Fire Weather Risk.
  Limited Thunderstorm Risk, mainly southeast of I-55.
Tuesday...
  Limited Thunderstorm Risk.

DISCUSSION...

Isolated to scattered thunderstorms may develop ahead of a cold
front late Thursday afternoon and shift east-northeast into the
evening. If thunderstorms develop, some will likely become severe
with damaging to destructive hail being the greatest threat. There
may also be a damaging wind threat and a tornado threat with some
storms.

Late Thursday afternoon into the early evening, hot temperatures,
dry conditions, and gusty southwest winds behind the cold front
may bring a brief period of elevated fire danger for portions of
northern and central Illinois.

On Friday, strong west-southwest winds and very warm and dry
conditions will result in potentially significant fire danger.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

  Nearly stationary to at times variable less than 10 mph.

$$

LMZ740>745-150945-
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-
434 AM CDT Wed May 14 2025

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...Today and Tonight.

Weather hazards expected...

  Significant Fog Risk.
  Limited Thunderstorm Risk.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
  Hazardous conditions for small craft are likely.
  Limited Thunderstorm Risk...with an associated:
     Level 3 of 5 Severe Thunderstorm Risk.
  Limited Fog Risk in the morning.
Friday...
  Gale force winds possible.
  Limited Thunderstorm Risk.
Saturday...
  Hazardous conditions for small craft are likely.
Monday and Tuesday...
  Hazardous conditions for small craft are likely.

$$

Castro

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