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FLUS43 KIWX 180901
HWOIWX

Hazardous Weather Outlook
National Weather Service Northern Indiana
501 AM EDT Mon Aug 18 2025

INZ005>009-012>015-017-018-020-022>027-032>034-104-116-203-204-216-
MIZ078>081-OHZ001-002-004-005-015-016-024-025-190915-
Elkhart-Lagrange-Steuben-Noble-De Kalb-Starke-Pulaski-Marshall-
Fulton IN-Whitley-Allen IN-White-Cass IN-Miami-Wabash-Huntington-
Wells-Adams-Grant-Blackford-Jay-Eastern St. Joseph IN-
Northern Kosciusko-Southern La Porte-Western St. Joseph IN-
Southern Kosciusko-Cass MI-St. Joseph MI-Branch-Hillsdale-Williams-
Fulton OH-Defiance-Henry-Paulding-Putnam-Van Wert-Allen OH-
501 AM EDT Mon Aug 18 2025 /401 AM CDT Mon Aug 18 2025/

This Hazardous Weather Outlook is for northern Indiana, southwest
Michigan and northwest Ohio.

.DAY ONE...Today and tonight.

An isolated thunderstorm is possible today from northwest Indiana
into southwest Lower Michigan. Severe weather is not expected.

Chances of thunderstorms will increase tonight, especially during the
overnight hours to the west of Interstate 69. Severe weather is not
expected but a few storms may produce some heavy rainfall.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

There is a chance of thunderstorms on Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

INZ103-MIZ177-277-190915-
Northern La Porte-Northern Berrien-Southern Berrien-
501 AM EDT Mon Aug 18 2025 /401 AM CDT Mon Aug 18 2025/

This Hazardous Weather Outlook is for northern Indiana and
southwest Michigan.

.DAY ONE...Today and tonight.

There is a Moderate Swim Risk this morning, mainly for southeast Lake
Michigan beaches in southern Berrien and northern La Porte Counties.
Breaking waves and currents will lead to dangerous swimming
conditions.

An isolated thunderstorm is possible today. Severe weather is not
expected.

Chances of thunderstorms will increase tonight. Severe weather is
not expected but a few storms may produce some heavy rainfall and
gusty winds to 40 mph.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

There is a chance of thunderstorms on Tuesday.

Dangerous swimming conditions are expected for southeast Lake
Michigan beaches Wednesday into Thursday morning. There is a High
Swim Risk Wednesday and Wednesday night, and a Moderate Swim Risk
Thursday morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

LMZ043-046-190915-
New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI-
501 AM EDT Mon Aug 18 2025

This Hazardous Weather Outlook is for the nearshore waters of
southeastern Lake Michigan.

.DAY ONE...Today and tonight.

An isolated thunderstorm is possible today, with a greater chance of
thunderstorms tonight. A few storms may produce wind gusts to 30
knots.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

There is a chance of thunderstorms on Tuesday.

Hazardous conditions for small craft are possible Wednesday and
Wednesday night.

$$