610
FXUS63 KGRR 070500
AFDGRR
Area Forecast Discussion
National Weather Service Grand Rapids MI
100 AM EDT Tue Jul 7 2026
.KEY MESSAGES...
- Dry Weather Through Wednesday
- Rain and Thunderstorm Chances Late Wednesday Night into Friday
&&
.DISCUSSION...
Issued at 116 PM EDT Mon Jul 6 2026
- Dry Weather Through Wednesday
Pleasant summer weather is expected to continue through Wednesday as
high pressure sets up over the area. Northeast winds become light
and variable overnight into Tuesday. A lake breeze is expected to
develop Tuesday afternoon which will lower temperatures a few
degrees in the afternoon. Winds then turn to the southwest for
Wednesday and gusts around 20 knots. Highs this week will be in
the 80s with lows in the 50s and 60s.
- Rain and Thunderstorm Chances Late Wednesday Night into Friday
A shortwave trough moves into the region late Wednesday night and
slowly tracks through Thursday bringing chances for rain and
thunderstorms. The low level jet with this system will only be
around 30 knots, there will be some support with the right
entrance region of the upper level jet, but with marginal support
and 1000 J/kg of CAPE the potential for severe storms is low. The
best chance for rain and thunderstorms is early Thursday morning
and during the day Thursday. Lingering positive vorticity
advection may stir up additional showers on Friday.
&&
.AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/...
Issued at 100 AM EDT Tue Jul 7 2026
Not much weather concerns for aviation today. VFR expected with a
few clouds 5,000 to 6,000 feet. Winds will generally be light from
the north, except near Lake Michigan this afternoon where a light
breeze from the west will develop.
&&
.MARINE...
Issued at 116 PM EDT Mon Jul 6 2026
As high pressure builds into the region, winds are anticipated to
pick up along the lakeshore later this afternoon and into the
evening. North winds gusting 20 to 25 knots will cause waves to
build. Therefore a Small Craft Advisory and Beach Hazard statement
are in effect for areas south of Pentwater. Areas north of Pentwater
have lower confidence in these thresholds being met, but if there is
an uptick in winds and waves they may need to be added until lighter
winds and lower waves return tonight.
Overall winds and waves are expected to remain below 3 feet for most
of the upcoming week with dry conditions expected through Wednesday.
Rain and thunderstorms chances return to the forecast late Wednesday
night into Thursday and linger into Friday.
&&
.GRR WATCHES/WARNINGS/ADVISORIES...
MI...None.
MARINE...None.
&&
$$
DISCUSSION...RAH
AVIATION...CAS
MARINE...RAH
NWS GRR Office Area Forecast Discussion
