textproduct: Grand Rapids

KEY MESSAGES

- Frost/Freeze conditions again tonight

- Rain chances Tuesday and Late Week

DISCUSSION

Issued at 205 AM EDT Mon May 11 2026

- Frost/Freeze conditions again tonight

Expect one more cold night as a Canadian surface high remains in place tonight with clear skies and light winds. Frost/freeze conditions could impact much of the forecast area. The sfc high is moving east and clouds may arrive from the west late in the night but temperatures could still fall below freezing in the cold spots where winds stay decoupled.

- Rain chances Tuesday and Late Week

A clipper low moving in the fast northwest flow arrives on Tuesday with the first widespread rain this month. QPF expected to be around two tenths of an inch with some isolated half inch amounts possible with scattered convection Tuesday evening.

Flow goes more zonal late week and deeper moisture streams up from the Gulf ahead of a shortwave trough that arrives Friday or Saturday with showers and scattered convection.

AVIATION /12Z TAFS THROUGH 12Z TUESDAY/

Issued at 647 AM EDT Mon May 11 2026

VFR conditions will continue through tonight. North winds AOB 10 knots today will diminish to light and variable this evening.

MARINE

Issued at 205 AM EDT Mon May 11 2026

Winds and waves will be relatively light under high pressure today and tonight then south winds will increase to 30 knots on Tuesday and a SCA will be needed Tuesday into Wednesday,

GRR WATCHES/WARNINGS/ADVISORIES

MI...Freeze Warning until 8 AM EDT this morning for MIZ037>040- 043>046. Frost Advisory until 8 AM EDT this morning for MIZ050>052- 056>059-064>067-071>074. MARINE...None.