659
FXUS63 KIND 191101
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
701 AM EDT Sun Jul 19 2026

.KEY MESSAGES...

- Dry today and Monday but upper level smoke will spread over the
  area

- Growing concern for numerous strong to severe thunderstorms Monday
  night and again Tuesday

- Noticeably cooler and less humid for the middle to latter part of
  the week behind a cold front

&&

.DISCUSSION (Today through Saturday)...
Issued at 310 AM EDT Sun Jul 19 2026

A drier and slightly cooler airmass will settle into the region
today through tomorrow as high pressure moves through.
Unfortunately, this will return wildfire smoke from Canada in the
upper levels, some of which could mix down near the surface. Air
Quality Alerts are in effect for all but far southern portions of
central Indiana for both days to account for the smoke impacts.
Return flow on the back side of the high by Monday afternoon will
push the smoke back north.

A stronger cold front will move in bringing with it chances for
convection and heavy rainfall as well as a threat for severe weather
Monday night through Tuesday. Signals are showing the potential for
an MCS to develop and track southeastward through the region. While
models diverge some, limiting confidence on detail of its
development, damaging winds look to be the main threat at the
moment as well as heavy rainfall.

In the wake of this front, surface high pressure will bring cooler
and even drier air leading to a pleasant latter half of the week.
Going into the weekend, a return to near normal temperatures looks
probably as the high exits and can`t rule out the potential for
precipitation.

&&

.AVIATION (12Z TAF Issuance)...
Issued at 701 AM EDT Sun Jul 19 2026

Impacts:

- Smoke will cause hazy skies

Discussion:

VFR conditions are largely expected throughout the TAF period. The
few caveats would be lingering fog at the top of the period at LAF
and then smoke aloft could create hazy conditions, potentially
impacting visibilities. Winds will stay below 10 kt from the NE.

&&

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

$$

AVIATION...KF
DISCUSSION...KF