One product issued by NWS for: Valparaiso IN
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
447 AM CDT Thu Jun 19 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-201000-
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-
447 AM CDT Thu Jun 19 2025 /547 AM EDT Thu Jun 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.
DISCUSSION...
There is a slight chance (around 15%) of a few isolated
thunderstorms over northeast Illinois and northwest Indiana this
afternoon, mainly east of a Crystal Lake to Kankakee and Lafayette
line. While no severe weather is expected, isolated wind gusts
gusts up to 45 mph may be possible with the strongest storms.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Saturday and Sunday...
Elevated Excessive Heat Risk.
Monday...
Limited Thunderstorm Risk.
Elevated Excessive Heat Risk.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
DISCUSSION...
There is a chance (30-40%) that a thunderstorm complex could move
into northern Illinois from the northwest Friday morning. Though
these storms would likely be in a weakening phase, they may still
be able to produce damaging wind gusts.
Hot and humid weather will develop this weekend into early next
week. Peak afternoon heat indices at or above 100 degrees are
expected for several days.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at 35 mph.
$$