textproduct: Grand Rapids

KEY MESSAGES

- Cool with occasional chances for showers

DISCUSSION

Issued at 234 AM EDT Thu May 7 2026

- Cool with occasional chances for showers

Upper troughing across the Great Lakes will persist into next week. Temperatures will remain cool with a frost threat again Thursday night. Frost/Freeze potential increases for Saturday, Sunday and Monday nights as well. Clipper type lows will occasionally bring showers in a northwest flow regime.

A shortwave trough moves through today and tonight with the diurnal increase in sfc-based instability this afternoon and evening resulting in isolated to scattered showers. The pattern repeats for Saturday and Tuesday. The Tuesday low should have deeper moisture to work with, but is moving fast enough to limit the chances of excessive rainfall.

AVIATION /12Z TAFS THROUGH 12Z FRIDAY/

Issued at 647 AM EDT Thu May 7 2026

VFR conditions will continue into Friday morning. West winds blo 10 knots early this morning will go west southwest this afternoon and gust to 20 knots at times, then go southwest and diminish to around 10 knots tonight.

MARINE

Issued at 234 AM EDT Thu May 7 2026

West winds today could gust over 20 knots at times, otherwise winds and waves will remain relatively light into the weekend.

GRR WATCHES/WARNINGS/ADVISORIES

MI...Freeze Warning until 8 AM EDT this morning for MIZ037>040- 044>046. Frost Advisory until 8 AM EDT this morning for MIZ043-050>052- 056>059-064>067-071>074. MARINE...None.