Hazard Report Provided By forecast.weather.gov

INZ001-002-010-011-150500-
Lake IN-Porter-Newton-Jasper-
Including the cities of Gary, Hammond, Merrillville, Portage,
Valparaiso, Chesterton, Roselawn, Kentland, Morocco, Rensselaer,
and DeMotte
1144 AM CDT Mon Jul 13 2026

...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TUESDAY NIGHT...

The officials at the Indiana Department of Environmental Management
have declared an Air Quality Action Day, IN EFFECT UNTIL MIDNIGHT
CDT TUESDAY NIGHT.

An Air Quality Action Day for ozone has been issued. Ozone levels
are expected to be in the Unhealthy for Sensitive Groups range.
Active children and adults, and people with respiratory disease,
such as asthma should limit prolonged outdoor exposure.

Here are some recommended actions that the public can take:

 * Walk, bike, carpool or use public transportation.
 * Avoid using the drive-through and combine errands into one trip.
 * Avoid refueling your vehicle or using gasoline-powered lawn
   equipment until after 7pm.
 * Turn off your engine when idling for more than 30 seconds.
 * Conserve energy by turning off lights or setting the air
   conditioner to 75 degrees or above.

 For additional information, please visit the IDEM Smog page at:

 http://www.in.gov/idem/airmonitoring/smogwatch/

$$

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
207 AM CDT Tue Jul 14 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-150715-
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-
207 AM CDT Tue Jul 14 2026 /307 AM EDT Tue Jul 14 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 Excessive Heat Risk.

DISCUSSION...

Afternoon heat indices will peak around 100 degrees today.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
  Limited Excessive Heat Risk.
Thursday...
  Limited Thunderstorm Risk.
  Limited Excessive Heat Risk.
Friday through Sunday...
  Limited Thunderstorm Risk at times.

DISCUSSION...

Peak heat index values of 100 to 105 degrees are expected on
Wednesday, and then around 100 on Thursday. Lake breezes may
provide slight relief along the immediate Lake Michigan shore each
afternoon.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

$$

Hazard Report Provided By forecast.weather.gov