266 
FXUS63 KIWX 261844 CCA
AFDIWX

Area Forecast Discussion...Correction
National Weather Service Northern Indiana
244 PM EDT Sun Oct 26 2025

.KEY MESSAGES...

- Seasonably cool and dry weather continues through Tuesday.

- Rain is possible (30-60%) at times Wednesday through Friday
  with cool temperatures continuing. 

&&

.DISCUSSION...
Issued at 228 PM EDT Sun Oct 26 2025

Seasonably cool temperatures and dry low level easterly flow to 
persist through Tuesday on the southern fringes of a prominent upper 
ridge. The low level height gradient does tighten a bit into Monday 
and Tuesday with diurnally driven gusts approaching 20 mph. Skies 
will generally trend mostly clear to partly cloudy otherwise as some 
mid-high level cloud cover sneaks in at times on the northern 
periphery of a weak low meandering east into the TN Valley. 

Model guidance agrees on an incoming northern pacific jet closing 
off an upper low into the western OH/TN Valleys Tuesday night 
through Wednesday night. This feature then interacts in some fashion 
with a Northeast CONUS upper low and lifts northward with some 
deepening to the sfc reflection noted in guidance Thursday into 
early Friday. The 12z trend overall was toward the farther south and 
east solution with more appreciable rainfall within the system 
deformation axis pivoting around the area (drier). Still plenty of 
spread in ensembles given the uncertainties in these upper low 
mergers. Thus, opted not to deviate from NBM broadbrush chance PoPs 
mid-late week. 

&&

.AVIATION /18Z TAFS THROUGH 18Z MONDAY/...
Issued at 106 PM EDT Sun Oct 26 2025

Persistent east flow is expected through the TAF period on the
southern edge of high pressure over the eastern Great Lakes. 
Cannot rule out patchy ground fog prior to daybreak, with some 
Lake Erie moisture transport.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...None.
OH...None.
MI...None.
MARINE...None.

&&

$$

DISCUSSION...Steinwedel
AVIATION...Brown