199
FXUS63 KIND 080804
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
304 AM EST Sun Nov 8 2026

.KEY MESSAGES...

- Breezy southwesterly flow will warm temperatures into the
  upper 50s to low 60s today

- Highs will warm well into the 60s on Tuesday before temperatures
  cool down significantly mid-late this week

- Scattered showers are possible late Wednesday through Thursday

&&

.DISCUSSION (Today through Saturday)...
Issued at 304 AM EST Sun Nov 8 2026

Today through Tuesday night...

Quiet weather conditions are expected to continue as surface high
pressure remains in control. Current satellite and surface
observations depict surface high pressure centered near southern IL
with clear skies across the forecast area. A very weak pressure
gradient from the surface high is contributing to very light or calm
winds. This combined with clear skies has allowed for patchy fog to
develop in climatologically favored locations. Any fog that develops
should quickly mix out after sunrise.

A low pressure system moving across southern Canada is expected to
push a weak cold front through the region tonight. Meanwhile, high
pressure remaining south of central Indiana will continue to greatly
limit gulf moisture return, allowing for dry conditions to persist.
Breezy conditions are likely ahead of the boundary due to a moderate
pressure gradient. Winds should quickly taper off during the evening
hours once the pressure gradient begins to relax and the PBL
decouples. Winds becoming light overnight combined with mostly clear
skies will support additional fog development into Monday morning.

Upper ridging and surface high pressure building across the region
early in the work week will continue to promote quiet weather.
Ensemble guidance depicts a shortwave pushing another weak cold
front into central Indiana on Tuesday. However, no precipitation is
expected due to gulf moisture remaining cutoff. It remains uncertain
if the front pushes through the entire forecast area as the front
eventually stalls Tuesday night.

Return flow will moderate temperatures over the next few days. Look
for highs in the upper 50s to low 60s through Monday with highs then
warming well into the 60s on Tuesday.

Wednesday through the end of the week...

A shortwave moving in from the northwest late Wednesday into
Thursday will promote increasing rain chances. Latest ensemble
guidance depicts surface high pressure breaking down across the
South. This should allow for sufficient gulf moisture return ahead
of a developing low pressure system associated with the shortwave.
Increasing dynamics combined with sufficient forcing supports the
potential for scattered showers.

The parent trough is expected to continue deepening across the
eastern CONUS through late week with strong cold air advection
across central Indiana. Model guidance also depicts surface high
pressure building in Friday and Saturday. Look for much cooler
temperatures late this week and quiet weather. Highs are only
expected to reach the low to mid 50s by Thursday while highs
struggle to get out of the 40s by Friday. Lows in the upper 20s to
low 30s return Thursday and Friday night.

&&

.AVIATION (06Z TAF Issuance)...
Issued at 1239 AM EST Sun Nov 8 2026

Impacts:

- MVFR visibility in patchy fog is possible around 12Z at KLAF
- Winds slowly veering from SW to W late in the day
- Gusts up to 20-26 KT during the day

Discussion:

Outside of possible brief MVFR towards 12Z at KLAF, VFR conditions
are expected to prevail near central Indiana terminals through
Sunday evening. Additional fog development is possible Sunday night
into Monday morning, but confidence is still too low for an explicit
mention in the TAFs.

Light winds overnight should increase during the day ahead of an
approaching front. Gusts between 20-26 KT are possible at KLAF-KIND
during the day. SOuthwesterly winds will veer to more westerly late
in the day and then eventually northwesterly at the end of the
period.


&&

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

$$

AVIATION...Melo
DISCUSSION...Melo