902 
FLUS43 KGRR 180749
HWOGRR

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
349 AM EDT Tue Jun 18 2024

MIZ037>040-043>046-050>052-056>059-064>067-071>074-190800-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
349 AM EDT Tue Jun 18 2024

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Heat indices will increase up to around 100 degrees this afternoon. 
This will create the potential for heat related illnesses.

Isolated thunderstorms are possible this afternoon and evening 
for areas away from Lake Michigan. Severe weather is unlikely. 
Locally heavy downpours with slow moving storms will be the main 
threat, along with lightning. 

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Prolonged impacts of heat and humidity this week will increase
potential for heat related illnesses through Saturday. 

Isolated thunderstorms will be possible mainly during the afternoon 
and evening hours for areas away from Lake Michigan through
Saturday. Severe weather is not expected. Locally heavy downpours
with slow moving storms will be the main threat, along with 
lightning. A better chance for more widespread thunderstorms could
come Saturday night or Sunday. 

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

LMZ844>849-190800-
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
349 AM EDT Tue Jun 18 2024

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Winds and waves will increase today and produce hazardous conditions
for swimmers and boaters north of Muskegon. 

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Winds and waves will produce hazardous conditions for swimmers and
boaters north of Muskegon Wednesday. 

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$