National Weather Service Northern Indiana
HEAT ADVISORY REMAINS IN EFFECT UNTIL 8PM 
National Weather Service Northern Indiana
1212 PM EDT Wed Jul 23 2025
INZ012>015-020-022-103-104-203-204-MIZ078-177-277-240415-
/O.CON.KIWX.HT.Y.0005.250723T1800Z-250725T0000Z/
Starke-Pulaski-Marshall-Fulton IN-White-Cass IN-Northern La Porte-
Eastern St. Joseph IN-Southern La Porte-Western St. Joseph IN-
Cass MI-Northern Berrien-Southern Berrien-
1212 PM EDT Wed Jul 23 2025 /1112 AM CDT Wed Jul 23 2025/
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT /7 PM CDT/
THURSDAY...
* WHAT...Heat index values 98 to 102 this afternoon and early
evening, falling into the low to mid 70s tonight. Heat index
values 100 to 105 expected Thursday afternoon with isolated values
to 108 possible.
* WHERE...Portions of northern Indiana and southwest Michigan.
* WHEN...Until 8 PM EDT /7 PM CDT/ Thursday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Address/Location
Marshall County Sheriff's Office
1400 pioneer
Plymouth, IN 46563
Contact
Emergency: 9-1-1
Non-emergencies: 574-936-3187