FXUS63 KIWX 242326

AFDIWX



Area Forecast Discussion

National Weather Service Northern Indiana

726 PM EDT Fri Oct 24 2025



.KEY MESSAGES...



- Cold again tonight with lows generally in the low 30s.



- Temperatures moderate slightly over the weekend but remain cool.



- The next chance of rain arrives during the middle of next week.



&&



.DISCUSSION...

Issued at 204 PM EDT Fri Oct 24 2025



Light winds and mainly clear skies for much of the night should 

allow temps to fall to near freezing CWA-wide early Saturday with 

frost anticipated within a low level ridge axis. Only limiting 

factor could be some mid-high level clouds overspreading later 

tonight. Opted for a FZ.W for our IN and OH counties.



A lower amplitude shortwave, currently near the North Dakota and 

Manitoba border, will dampen southeast through the western and lower 

Great Lakes Saturday into Saturday night. This wave will bring mid-

high level clouds to the area during this time, also acting to block 

an upper low and more appreciable moisture to the southwest across 

the southern Plains east toward the MO/AR border. The result 

should be dry wx and seasonably cool easterly winds locally this

weekend.



A complex upper level pattern looks to materialize next week with an 

model consensus favoring primarily dry/cool low level easterly 

flow between high pressure to the north and disorganized low 

pressure drifting east toward the TN and lower OH Valleys. 

Additional pacific jet energy and a leading pv anomaly does look

to induce cyclogenesis somewhere over the OH/TN Valleys mid 

week, potentially transferring to an east coast system. 

Confidence in details is very low on how this system evolves. At

this point, troughing does look to dominate for the mid-late 

week periods with temps averaging below seasonal normals. A 

model consensus would favor better prospects for soaking rains 

to be south and east of the region, though daily chances for sct

showers can't be ruled out as numerous smaller scale vorts 

swing through the trough axis.



&&



.AVIATION /00Z TAFS THROUGH 00Z SUNDAY/...

Issued at 721 PM EDT Fri Oct 24 2025



VFR prevails. Light and variable winds expected tonight w/ some

patchy shallow fog possible in response to strong radiational

cooling. Periodic reduction in visibility cannot be entirely

ruled out overnight at both KSBN and KFWA, but overall the risk

of widespread or persistent MVFR conditions appears low. Mid and

high level clouds return on Saturday with CIGS generally between

10k and 15k feet AGL.



&&



.IWX WATCHES/WARNINGS/ADVISORIES...

IN...Freeze Warning from 2 AM EDT /1 AM CDT/ to 9 AM EDT /8 AM CDT/ 

     Saturday for INZ005>009-012>015-017-018-020-022>027-

     032>034-103-104-116-203-204-216.

OH...Freeze Warning from 2 AM to 9 AM EDT Saturday for OHZ001-002-

     004-005-015-016-024-025.

MI...None.

MARINE...None.



&&



$$



DISCUSSION...Steinwedel

AVIATION...Hammer