466
FXUS63 KIND 041112
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
712 AM EDT Tue Aug 4 2026

.KEY MESSAGES...

- Visibility reductions in patchy fog through 8-9 AM this morning

- Quiet pattern continues through Wednesday amid light winds and
  near to slightly below normal temperatures/humidity

- Generally humid, seasonably warm w/occasional rain/storm chances
  Wednesday night into next week...rain most likely Thursday-Friday

&&

.DISCUSSION (Today through Monday)...
Issued at 302 AM EDT Tue Aug 4 2026

Today and Tonight...

The short term will present a near-carbon copy of the previous 24
hours as weak surface high pressure continues to drift east within
the northeastern quadrant of the CONUS...while maintaining its low-
gradient and narrow axis over central Indiana.  Expect areas of fog
to present patches of quick changes in visibility through 8-9 AM
EDT...albeit less organized than early Monday, courtesy of the
August sun drying ground moisture through the early week.  Otherwise
the period will be marked by unseasonably light winds and slightly
below normal temperatures and humidity.

Mainly clear skies early today will again trend to an increasing
cumulus field by afternoon...with highs this afternoon ranging from
the low 80s along and northeast of the I-74 corridor...to mid-80s
near and south/west of Monroe County. Fair weather will continue
into tonight amid calm winds under mostly clear skies.  Expect
overnight lows to range from 59F near Kokomo to 64F in Vincennes and
Seymour.

Wednesday...

Influence from an upper low to the southeast of central Indiana
looks to remain out of the area, and forcing from an approaching
upper trough/surface cold front will remain northwest of the area
during the day. Will continue a dry forecast.

Highs will generally be in the middle 80s.

Wednesday night through Saturday...

The large upper trough will move into the area at into Saturday.
Various shortwaves will move through this trough, with the axis of
the trough not moving through until about Saturday. These will bring
rounds of forcing. At the surface, a front will meander near the
area. The combination of these will be enough to keep PoPs around
through this period.

Although some uncertainty remains in the timing of the best forcing,
for now odds still favor Thursday afternoon and night.

Dewpoints returning into the 70s by Friday will help increase the
instability, but odds for severe storms look low for now. Will
continue to keep an eye on it though in case one of the shortwaves
becomes stronger than currently expected.

Sunday and beyond...

The upper ridge across the western USA may nudge its way into the
area on Sunday into early Monday, lowering the chances for rain.
However, by Monday night it may retreat enough to put central
Indiana in line to get convection from storms riding around the
ridge.

Highs will be in the middle and upper 80s, with perhaps some
readings around 90 south depending on what the ridge does. With the
higher dewpoints in place, heat indices may approach 100 degrees on
Monday.

&&

.AVIATION (12Z TAF Issuance)...
Issued at 711 AM EDT Tue Aug 4 2026

Impacts:

- MVFR in fog possible through 13Z...and most likely at KBMG

Discussion:

Calm to very light winds will promote MVFR visibility in BR at
KBMG...with brief MVFR possible at KLAF/KHUF.  Weak surface high
pressure will continue to drift east over the Midwest through the
TAF period...maintaining calm to weak flow, most often from the east-
northeast, under 10KT at KIND and under 7KT elsewhere.

Mostly clear skies will yield to FEW/SCT cumulus by this afternoon,
with greater coverage at KLAF/KHUF.

&&

.IND WATCHES/WARNINGS/ADVISORIES...None.

&&

$$

AVIATION...AGM
DISCUSSION...AGM/50