textproduct: Central Illinois

KEY MESSAGES

- Expected snowfall amounts this weekend have trended downward some, especially toward the I-72 corridor. The highest chances of more than 2 inches are north of Peoria and Galesburg (about a 60% chance).

- Some potential exists for light freezing drizzle as the snow ends early Sunday.

- Temperatures warm enough for rain to occur with the next system toward mid week.

LONG TERM

(Monday through Next Friday) Issued at 200 PM CST Fri Dec 5 2025

No significant changes in the forecast thinking for the upcoming work week. While we remain a general northwest upper flow, a good portion of that will be coming from more of a Pacific flow, resulting in some milder (relatively speaking) temperatures for a time. However, ridging becomes more prominent along the West Coast by late week, with another surge of colder temperatures into the Midwest.

Clipper systems will zip southeast every couple of days, with the Tuesday night system the strongest. This one is also the farthest north, and is likely to be more of a rain maker this far south. While the longer range models bring the next one into the central U.S. Thursday night or early Friday, the GFS appears to be too far north at this time. European ensembles are further south, but are fairly evenly split in the timing and/or snow potential. NBM precipitation chances near 20% will be sufficient at this point.

Geelhart

AVIATION

(For the 06z TAFs through 06z Saturday Night) Issued at 1003 PM CST Fri Dec 5 2025

MVFR ceilings will overspread the central IL terminals from the northwest tonight. These ceilings are expected to lower into the low MVFR range late tonight and Saturday morning, with low-medium confidence of IFR ceilings developing at KBMI-KDEC-KCMI. Ceilings are forecast to hold across the region into Saturday night. A weather system will approach from the west late in the forecast with -RASN moving into KPIA. Winds southwest to west through the period under 10 kt.

25

ILX WATCHES/WARNINGS/ADVISORIES

None.