textproduct: Grand Rapids

KEY MESSAGES

- Chance for showers and thunderstorms for some into this evening

- Warmer next week - occasionally humid and potentially stormy

DISCUSSION

Issued at 246 PM EDT Wed Aug 26 2026

- Chance for showers and thunderstorms for some into this evening

Will continue to watch scattered showers and storms work east over the next several hours. So far...weather has behaved for much of west Michigan though enough instability remains that we could see some storms pop and produce isolated severe/near severe hail winds over the next few hours. Threat near/west of US-131 is over for the day with those east of US-127 and along/south of I-94 remaining in the greater risk zone for the next several hours. Looks like all storm threat should be out of the area by 6-7pm...though we could wrap up the potential for storms earlier than that. A few pop up showers will be possible Thursday.

- Warmer next week - occasionally humid and potentially stormy

Return to hotter, more humid and potentially stormy weather continues to be the most favored outcome for west Michigan in the mid-long range models. 90s at times for highs are not out of the question at this time with enough moisture and instability for potential severe weather on occasion and even heavy rain at times.

AVIATION /00Z TAFS THROUGH 00Z FRIDAY/

Issued at 623 PM EDT Wed Aug 26 2026

Showers and thunderstorms will have cleared the terminals by 00z with latest short range model trends suggesting the scattered post frontal showers are unlikely to occur. Patchy fog is possible from 09z-13z tonight, with the best chance for JXN where restrictions have been added. At all other terminals the chance is below 30% so will keep things VFR at present. West winds transition to northwest tonight generally at or below 10 knots. Isolated showers are possible after 18z at LAN and JXN but coverage is expected to be to low to warrant TAF inclusion. Cloud heights will raise from 3-4 kft this evening to aoa 5kft overnight.

MARINE

Issued at 246 PM EDT Wed Aug 26 2026

Winds and waves to decrease this evening with hazards to small craft decreasing as well. Still anticipating a brief window where it could be possible small craft and beach hazards tomorrow...but confidence remains pretty low exactly how long and if waves do materialize especially south of Muskegon.

GRR WATCHES/WARNINGS/ADVISORIES

MI...Beach Hazards Statement until midnight EDT tonight for MIZ037- 043-050-056-064-071. MARINE...Small Craft Advisory until midnight EDT tonight for LMZ844>849.