325
FXUS63 KIND 061808
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
208 PM EDT Sun Sep 6 2026

.KEY MESSAGES...

- Pleasant and less humid over the next couple of days.

- Brief return of heat midweek with a chance of storms Wednesday
Night into Thursday.

&&

.DISCUSSION (This evening through Sunday)...
Issued at 208 PM EDT Sun Sep 6 2026

Surface analysis this afternoon shows strong high pressure
stretching across the Great Lakes, Ontario to Quebec. This was
resulting in a dry and cooler flow of air to Central Indiana. GOES19
shows mainly clear skies across the area and the surface trough and
humidity had pushed farther south to Alabama/MS/GA. Water Vapor
continues to show strong ridging in place over the northern plains
with NW flow spilling SE to MI and Indiana. Water Vapor shows
subsidence in place over Indiana. Dew points across the area were
much more pleasant, in the upper 50s and lower 60s.

Tonight...

Little overall change will be expected tonight. The high pressure to
the NE will sag southward, maintaining control of our weather.
Forecast soundings and time heights continue to show a dry column.
Thus a clear night will be expected along with cooler low
temperatures in the upper 50s.

Monday through Tuesday...

Pleasant late summer weather is expected for the holiday and as many
folks return to work on Tuesday. Models shows the upper ridge axis
to the west slowly advancing eastward toward Indiana. This steers
any forcing dynamics well north of Central Indiana to Ontario,
keeping our area protected from any forcing. The surface high
pressure system to the northeast is expected to push to the eastern
Great Lakes on Monday, continuing the cool and dry easterly surface
flow to Indiana. On Tuesday, that high will sag southeast, reaching
the middle Atlantic states. This will continue to keep the dry
weather in place across Central Indiana, but southerly flow will
return, allowing for warmer highs in the upper 80s. Forecast
soundings each day show a dry column with a sufficient mid level
inversion to prevent CU development. Thus mostly sunny days and
mostly clear nights will be expected.

Wednesday through Sunday...

The upper pattern is much more progressive late this week and into
the weekend compared to what we have experience the past week. A
nearly steady Pacific, zonal flow is suggested to stream across the
northern CONUS. A few embedded waves look to pass, mainly on
Wednesday night into Thursday, followed by another wave on Saturday
into Sunday.

Best chances for rain will be on Wednesday Night in to Thursday as
surface cold front is suggested to accompany the upper forcing.
After high pressure passes through the area on Thursday Night
through Friday, more storm chances will arrive on Saturday and
Sunday as a less organized warm front arrives ahead of low pressure
developing over the plains. This will bring warmer high temperatures
to the area for next weekend. Overall, look for above normal
temperatures as the quick nearly zonal upper flow aloft keeps any
cool air intrusions at bay.

&&

.AVIATION (18Z TAF Issuance)...
Issued at 1213 PM EDT Sun Sep 6 2026

Impacts:

- VFR this TAF Period

Discussion:

High pressure northeast of Indiana will continue to control our
weather this TAF period, Unlimited cigs are expected as forecast
soundings remain dry and subsidence remains predominate within the
column. A mid level inversion will also prevent any diurnal CU
development.


&&

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

$$

AVIATION...Puma
DISCUSSION...Puma