536
FXUS63 KIWX 301050
AFDIWX

Area Forecast Discussion
National Weather Service Northern Indiana
650 AM EDT Sat Aug 30 2025

.KEY MESSAGES...

- A bit warmer today with highs in the mid 70s. Temperatures gradually
  warm into the holiday weekend with highs in the upper 70s
  Sunday and low 80s by Labor Day.

- Dry through the holiday weekend and into early next week.

- Next chances for rain/storms arrive on Wednesday and Thursday
  when a strong cold front pushes through. Much below normal
  temperatures are expected behind this cold front for next
  Thursday and Friday.

&&

.DISCUSSION...
Issued at 300 AM EDT Sat Aug 30 2025

This morning, numerous mid to high level clouds continue to
advect southeast across much of northern Indiana. Clouds are
expected to diminish over the next several hours although areas
that have lingering clouds this morning will have slightly
`warmer` morning lows near 50. Meanwhile, across southwest Lower
Michigan and northwest Ohio where cloud are much more isolated,
temperatures are expected to drop to near record low levels
this morning in the mid 40s.

Into the holiday weekend, an area of high pressure currently over
northern Lower Michigan will drift south to be directly overhead
of the forecast area. Given antecedent dry conditions and lack
of moisture in the air, this has allowed for large diurnal
temperature spreads of about 30 degrees. Temperatures will
rebound from the mid 40s to near 50 this morning into the mid
70s by the afternoon. Temperatures gradually warm as subtle WAA
ensues with highs in the low 80s area-wide by Labor Day. Can`t
ask for a better unofficial end to summer with seasonable
temperatures, comfortable humidity, light winds, and sunshine!

A strong upper level ridge over the Four Corners region continues to
drive an active, unseasonably early fall pattern across the
area. Another taste of fall is on the horizon just in time for
the start of meteorological fall! The next chances for
rain/storms arrive by midweek as a strong cold front and an
associated upper level trough pivot through much of the Midwest
to Southeast US. There are still some discrepancies in long
range model guidance as to the exact timing of the cold frontal
passage that will need to be resolved. Nonetheless, there is
very high confidence in much cooler than usual temperatures late
next week into the following weekend. Long range model guidance
suggests high temperatures may only be in the mid 60s on
Thursday post-front!

&&

.AVIATION /12Z TAFS THROUGH 12Z SUNDAY/...
Issued at 650 AM EDT Sat Aug 30 2025

Cool, dry and stable airmass is building across the region.
Expect just a SCT, 4-5 kft diurnal cu field today. Winds will
remain light and variable.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...None.
OH...None.
MI...None.
MARINE...None.

&&

$$

DISCUSSION...Johnson
AVIATION...AGD