281 
FXUS63 KIND 140532
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
132 AM EDT Tue Oct 14 2025

.KEY MESSAGES...

- Dry weather through Friday with warmer than normal temperatures 
  continuing

- Strong to severe storms possible this weekend along with heavy 
  rain and isolated flooding

- Turning cooler Sunday and Monday

&&

.SHORT TERM (Today and tonight)...
Issued at 131 AM EDT Tue Oct 14 2025

Quiet weather is expected through the period as upper ridging 
remains over the central CONUS and surface high pressure continues 
to build in. Current radar and satellite imagery shows mostly clear 
skies over much of the forecast area. However, some scattered low-
mid clouds associated with a weak remnant boundary are evident 
across north Indiana. These clouds should gradually progress 
southward before mixing out during the day. Plentiful sunshine later 
today combined with a dry column will allow for efficient diurnal 
heating. Look for highs to generally reach the upper 70s to low 80s. 

Model guidance does depict a low amplitude wave moving along the 
northern periphery of the ridge late tonight. This may lead to some 
enhancement in clouds for some areas, but precipitation is unlikely 
due to a lack of deeper moisture return. Favorable radiational 
cooling conditions for much of the night will still allow for 
temperatures to drop well into the 50s. Some rural locations may 
even reach the upper 40s again.

&&

.LONG TERM (Wednesday through Monday)...
Issued at 131 AM EDT Tue Oct 14 2025

Wednesday Through Friday.

A broad ridge of high pressure will remain in place over much of the 
central US Wednesday into Thursday with strong upper level lows to 
the west and to the east. Showers and thunderstorms are expected 
over the upper Midwest as Gulf air advects over a nearly stationary 
front, but this will keep to the northwest of the forecast area with 
only minimal chances for sprinkles across the northwest late Tuesday 
night into Wednesday. This moisture will bring higher cloud cover 
Wednesday into Wednesday night but otherwise expect dry and quiet 
weather through Friday with temperatures near normal.

Saturday Through Monday.

The main focus for the long term period will be tracking the 
potential for both heavy rain and strong to severe storms Saturday 
into Saturday night as the aforementioned low pressure system tracks 
into Canada and a secondary low ejects from the Four Corners region 
and undergoes cyclogenesis as it tracks through Oklahoma into the 
Tennessee Valley. The interaction between these two systems will be 
the catalyst for the active weather trough the weekend. The LLJ will 
ramp up ahead of the arrival of lift associated with the low 
pressure systems on Saturday with a direct connection to Gulf air 
bringing copious amounts of moisture to the area. There remains some 
uncertainty as to the timing but models have come much closer 
together over the last 24 hours with broad agreement in the heaviest 
rain occurring late Saturday into early Sunday with lower confidence 
on a period of rain ahead of the arrival of stronger forcing.

Both isolated flooding and isolated severe weather will be possible 
Saturday night into Sunday for Indiana with highest chances across 
the southern and southwestern portions of the state. Instability 
will be on the more marginal side across much of Indiana but colder 
air working in aloft will allow for 200-400 J/kg of CAPE along with 
40-50kts of effective bulk shear. The more notable aspect will be 
the shear in the lowest levels with 15-20kts of shear between 0 and 
1 km which combined with the marginal thermodynamics may create a 
risk for isolated tornadoes. There remains quite a bit of 
uncertainty as much of southern Indiana will be on the northern edge 
of the better instability which typically ends up underperforming in 
these patterns, but will have to continue to monitor the potential. 

In addition to the severe threat, isolated flooding will be a 
concern across the lower Ohio Valley with an axis of 2-4 inches 
likely somewhere in the area. Models are all over the place as to 
where this axis will set up with ensemble maximums towards the Ohio 
River into Kentucky. Again, details are uncertain at this time and 
typically models trend southward on the heaviest axis of 
precipitation in these patterns, especially with the current track 
of the secondary low staying to the south of Indiana.

Cooler weather is expected in the aftermath of the system Sunday 
into Monday with a low-end chance of rain lingering into Sunday 
depending on the final timing of the aforementioned system. This 
cooldown will be relatively brief as a ridge of warmer air looks to 
move back in early next week before the next round of low pressure 
systems arrive later in the week.

&&

.AVIATION (06Z TAF Issuance)...
Issued at 1225 AM EDT Tue Oct 14 2025

Impacts:

- None 

Discussion:

VFR conditions are expected through the period. Some scattered lower 
clouds between 040 and 060 over northern Illinois/Indiana will push 
southward towards primarily KLAF late tonight, possibly lasting 
through midday Tuesday before scattering out. Otherwise, broad high 
pressure centered over the Great Lakes region will keep weather 
conditions quiet with light winds from the north-northeast. Winds 
are likely going to be calm or light and variable through daybreak 
Tuesday.


&&

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

$$

SHORT TERM...Melo
LONG TERM...White
AVIATION...Melo