001
FXUS63 KIND 310159
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
959 PM EDT Sat May 30 2026

.KEY MESSAGES...

- Dry and pleasant weather expected through next week.

- Near-average temperatures, highs near 80, lows in 50s/60s.

- The best chance for rain is next Saturday

&&

.FORECAST UPDATE...
Issued at 958 PM EDT Sat May 30 2026

Few edits made to the evening update past tweaks to recognize
noticeable downward trend in humidity along I-69 corridor...
including Bloomington and Columbus reporting 50F dewpoints in most
recent observations.  More widespread mid cloud responsible for
majestic sunset also reflected in increased sky cover grids for at
least next several hours.  Otherwise central Indiana will slide from
the edge of to more within the central portions of placid late spring
high pressure aligned from the Great Lakes to the Mid-Atlantic.
Recent advection of lower dewpoints on associated easterly breezes
will allow for a cooler overnight...with lows by early Sunday
ranging from around 50F from Kokomo to New Castle and east...to
upper 50s south/west of the Bloomington area.

&&

.DISCUSSION (This evening through Saturday)...
Issued at 256 PM EDT Sat May 30 2026

Fairly quiet start to meteorological summer ahead as ridging
dominants the weather pattern locally over the next week. There will
be some subtle changes in the overall set up, but sensible weather
at the surface should remain fairly consistent with mainly dry
conditions and near normal temperatures.

An upper level omega blocking pattern is currently set up over the
CONUS with a thin ridge axis from Winnipeg, Manitoba southward to
the lower Mississippi Valley. Indiana remains just to the east of
the ridge axis, which is acting as almost a wall keeping any
convection well south and west of Central Indiana. Surface high
pressure resides over Ontario for the next few days resulting in
northeasterly flow keeping a drier airmass in place for this time of
year and temperatures largely around average with highs in the 70s
to near 80 and lows in the 50s to near 60.

Minor change to the overall pattern occurs on Monday as the omega
block briefly breaks down and a northwesterly flow pattern aloft
sets up over the Midwest and Great Lakes. At the same time, a
backdoor shortwave pivots southwest into the Great Lakes from
Canada. The NW-SE boundary which had been in place over the Plains,
keeping storms away from Indiana, briefly shifts eastward under the
NW flow pattern, potentially placing portions of Indiana in the
track of a few waves and precipitation. High pressure at the surface
will still be the dominant weather influence locally, so not
expecting widespread rain or storms in the area; however mid range
guidance has been consistent in showing the potential for convection
Monday morning and afternoon near the boundary in the southwest
quadrant of the state. Introducing low PoPs along and SW of a line
from Terre Haute to Bedford Monday, while the rest of Central
Indiana should remain fairly dry. Confidence is low on how the
mesoscale features will evolve going into Monday as CAMs struggles
on the smaller details this far out, so keeping PoPs under 30% for
now. Dry air in place could keep any precipitation light as well.
Will watch this threat over the next few days, but overall it should
not amount to much.

For the rest of next week, upper ridging redevelops overhead while
high pressure over Canada shifts southward into the southeast CONUS.
This pattern supports continued dry conditions for Central Indiana
with a warming trend by next weekend as flow becomes southwesterly.
Expect highs to gradually warm into the mid 80s by the end of the
week with lows in the mid 60s as humidity values gradually increase.
Longer range guidance introduces the chance for rain and storms by
Saturday the 6th as Gulf moisture streams northward along a
boundary. Will be monitoring the storm threat next week and updating
the forecast daily as confidence increase on the exact pattern
evolution and associated threats to Central Indiana.

&&

.AVIATION (00Z TAF Issuance)...
Issued at 740 PM EDT Sat May 30 2026

Impacts: None

Discussion:

VFR conditions to continue over central Indiana through Sunday
evening.  A few 15-20KT gusts will linger through this evening amid
a subtle gradient along the southwestern extent of surface ridging
centered over the northern Great Lakes.

An elongated mid to upper ridge extending from central Canada to the
western Midwest will slowly drift east over the local region through
the TAF period...while surface high pressure centered over the Great
Lakes to the Mid-Atlantic maintains slowly diminishing easterly flow
over terminals tonight.

Expect SCT to at times BKN high cloud into early Sunday.  The upper
ridge will breakdown across the Midwest through the latter half of
the period, while the surface high also weakens under an upper
trough swinging down eastern Canada into the Great Lakes...allowing
flow to become very light late Sunday, if not variable.

&&

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

$$

UPDATE...AGM
AVIATION...AGM
DISCUSSION...CM