970
FXUS63 KIWX 071744
AFDIWX

Area Forecast Discussion
National Weather Service Northern Indiana
144 PM EDT Mon Jul 7 2025

.KEY MESSAGES...

- Continued very warm and humid through the rest of this week with
  highs in the 80s.

- Frequent chances for showers and thunderstorms after Tuesday.
  Severe storms are not expected.

- The best chances for storms are Friday and Saturday.

&&

.DISCUSSION...
Issued at 236 AM EDT Mon Jul 7 2025

Storms from last night have nearly completely dissipated. The
storms had formed in the area of a weak upper level disturbance
in the vicinity of a somewhat diffuse cold front. The front has
been moving slowly south and will continue to drift south today.
Thunderstorms are possible ahead of south-moving front today -
basically east and south of Fort Wayne. Severe storms are not
expected but locally heavy rainfall is possible. Rainfall rates
last night up to 3"/hr were observed with the heaviest rainfall
reports around 2". These rainfall rates and amounts are
possible again today as an axis of very high precipitable water
around 2.0 resides ahead of the front and in the vicinity of the
front. The airmass behind the front was slightly cooler over
northwest Indiana and far southwest Lower Michigan.

As far as the rest of the week, an upper level ridge will remain
anchored over the southwest CONUS. Energy in the form of
disturbances and short wave trofs coming zonally from the west
and also from the northwest will combine to keep an active
pattern over the Upper Great Lakes region. Thunderstorms will be
possible each day after Tuesday. The airmass will slowly modify
and allow high temperatures to reach the mid to upper 80s by
Friday. Corresponding maximum heat indices Friday should reach
the lower 90s.

&&

.AVIATION /18Z TAFS THROUGH 18Z TUESDAY/...
Issued at 144 PM EDT Mon Jul 7 2025

The frontal boundary has cleared the forecast area, though lower
cigs remain at KFWA this aftn where winds remain WNW. KSBN has
scattered out with a northerly wind. It will take awhile for the
llvl moisture to clear KFWA, so improvement isn`t expected
until later in the fcst period. Expect vsbys to once again lower
at KFWA overnight with a return of some mist and some vsby
restriction at KSBN due to BR.


&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...Beach Hazards Statement until 9 PM CDT this evening for INZ103.
OH...None.
MI...Beach Hazards Statement until 10 PM EDT this evening for
     MIZ177-277.
MARINE...Small Craft Advisory until 3 PM EDT this afternoon for LMZ046.

&&

$$

DISCUSSION...Skipper
AVIATION...MF