IND issues Area Forecast Discussion (AFD) at Jun 28, 2:31 PM EDT413
FXUS63 KIND 281831
AFDIND
Area Forecast Discussion
National Weather Service Indianapolis IN
231 PM EDT Sun Jun 28 2026
.KEY MESSAGES...
- Hot and humid condition expected for much of the upcoming week
with multiple days in the 90s and heat indices over 100 degrees
- Heat Advisory in effect Monday afternoon through Thursday
&&
.DISCUSSION (This evening through Sunday)...
Issued at 231 PM EDT Sun Jun 28 2026
Skies remained partly to mostly cloudy across central Indiana this
afternoon, and this will remain the case for the rest of the day.
While broken cumulus will eventually scatter out late in the
afternoon into early evening, high clouds will increase from dying
thunderstorms to the northwest.
Will have to keep an eye out for the remnants of the upstream storms
early this evening. They should weaken/dissipate as they approach
the area, but it may take longer than the CAMs suggest per recent
trends. Will keep the forecast area dry but continue to monitor.
Otherwise, a warm front with the hot airmass behind it will move
across the area tonight. Forcing isn't great so am expecting mainly
some clouds. However, can't rule out an isolated shower. Odds will
remain below mentionable thresholds. With the moist atmosphere in
place, some patchy fog may form again overnight. Lows will be in the
lower to middle 70s.
On Monday morning, the warm front will be near or just east of the
forecast area. A rogue shower will still be possible east, but again
odds are too low to mention. The front will then exit to the east as
the upper ridge builds across the area. The ridge should be strong
enough to keep any storms riding around it east of the area Monday
afternoon.
This ridge will persist across the area at least through Wednesday.
The airmass will be a hot and humid one, with highs in the lower to
perhaps middle 90s and dewpoints in the lower to middle 70s. This
will produce afternoon heat indices of 100 to 105 for most areas
with locally higher values. Given this, the Heat Advisory looks good
and will make no changes at this time.
The ridge will may start to break down as early as Thursday, and by
next weekend some guidance is showing an upper trough moving in.
These will result in a return of chances of showers and
thunderstorms.
Blended guidance is keeping highs in the 90s into next weekend, but
that may be too warm given more clouds and increasing chances for
rain with the upper trough.
&&
.AVIATION (18Z TAF Issuance)...
Issued at 108 PM EDT Sun Jun 28 2026
Impacts:
- Ceilings return to VFR this afternoon
- Patchy fog possible, especially at KBMG, predawn Monday
Discussion:
Stratus will continue to lift into a broken VFR cumulus field this
afternoon. These will scatter out late this afternoon into early
evening, but then scattered clouds near or above 6000FT will persist
through the night into Monday.
Partially depending on sky cover tonight, some patchy fog is
possible overnight. Odds are highest at KBMG so will keep a mention
there.
Winds will remain lower than 10kt for most if not all of the period.
&&
.IND WATCHES/WARNINGS/ADVISORIES...
Heat Advisory from noon Monday to 8 PM EDT Thursday for INZ021-
028>031-035>049-051>057-060>065-067>072.
&&
$$
AVIATION...50
DISCUSSION...50
Source:
IND issues Area Forecast Discussion (AFD) at Jun 28, 2:31 PM EDT---------------
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