One product issued by NWS for: Hammond IN
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
333 AM CDT Mon May 19 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-200845-
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-
333 AM CDT Mon May 19 2025 /433 AM EDT Mon May 19 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...
Limited Thunderstorm Risk mainly late tonight.
Limited Flooding Risk late tonight.
DISCUSSION...
An area of rain and some embedded thunderstorms will develop late
tonight. Severe weather is not expected, but some storms could
produce locally heavy rainfall.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk south of a La Salle to
Rensselaer line.
DISCUSSION...
Rain and a few thunderstorms with locally heavy rainfall will
continue on Tuesday.
A few strong to severe storms are possible Tuesday afternoon,
mainly south of a La Salle to Rensselaer line, although there is
uncertainty regarding storm development at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION TONIGHT:
Moving toward the north around 35 mph.
$$