Portage, Michigan 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

487
FXUS63 KGRR 060711
AFDGRR

Area Forecast Discussion
National Weather Service Grand Rapids MI
311 AM EDT Fri Jun 6 2025

.KEY MESSAGES...

- Upper Low Early Next Week with Rain showers

&&

.DISCUSSION...
Issued at 311 AM EDT Fri Jun 6 2025

Plenty of high clouds today but rain chances are very low and
confined to far southern areas. Fair and slightly cooler than
normal through Saturday then rain chances increase on Sunday in
advance of a vigorous upper low moving across the Great Lakes
region.

We can expect a diurnal enhancement of showers and a slight
chance of thunder in the afternoon and evening each day from
Sunday through Tuesday. The low moves out late Tuesday with fair
weather returning for Wednesday.

&&

.AVIATION /06Z TAFS THROUGH 06Z SATURDAY/...
Issued at 124 AM EDT Fri Jun 6 2025

VFR conditions will prevail through Friday evening at most sites
except JXN where some IFR/MVFR is expected at times through the
afternoon as low clouds and fog persist. Winds will be light and
variable overnight then go northerly AOB 10 knots this afternoon.

&&

.MARINE...
Issued at 124 AM EDT Fri Jun 6 2025

Winds and waves are expected to be relatively calm until late in
the weekend when south winds increase ahead of low pressure moving
in from the west. At this point it looks like winds and waves
remain below SCA criteria into early next week.

&&

.GRR WATCHES/WARNINGS/ADVISORIES...
MI...Air Quality Alert until noon EDT today for MIZ037>040-043>046-
     050>052-056>059-064>067-071>074.
MARINE...None.

&&

$$

DISCUSSION...Ostuno
AVIATION...Ostuno
MARINE...Ostuno