Area Forecast Discussion
Issued by NWS Northern Indiana
Issued by NWS Northern Indiana
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363 FXUS63 KIWX 071702 AFDIWX Area Forecast Discussion National Weather Service Northern Indiana 1202 PM EST Sun Dec 7 2025 .KEY MESSAGES... - Snow will continue to diminish early this afternoon with little to no additional accumulation. - Cold wind chills tonight and Monday night, -15F to +5F. - Snow and rain mix Tuesday and Wednesday. - Turning very cold late this week with highs in the teens. && .DISCUSSION... Issued at 421 AM EST Sun Dec 7 2025 Snow was just reaching the area west of Highway 31 early this morning at 4 AM EST. Upstream visibilities were generally 3/4SM to 2SM with locally 1/4SM +SN over the northern 1/3rd of IL. Given the latest surface observations, INDOT data, radar indications, observed snowfall amounts upstream, model forecast and the latest trends, made a couple of generally minor updates to the forecast including slightly higher snowfall amounts and a slightly more northern track. The heaviest snow amounts will fall north of Highway 30 and west of Highway 31. Northern Laporte is expected to receive around 4 inches of snow. Lighter amounts are expected east and south of this area. Have handled this system with a Special Weather Statement. Otherwise, much colder air will spread back into the area behind the snow. Winds should remain under 10 mph through Monday with wind chills falling below zero tonight and around zero Monday night. Temperatures should recover above freezing Tuesday and Wednesday before another surge of cold air brings wind chills as low as -15F Friday and Saturday nights . Chances for light snow will continue through the end of the week. && .AVIATION /18Z TAFS THROUGH 18Z MONDAY/... Issued at 1202 PM EST Sun Dec 7 2025 Light snow and predominately IFR conditions will taper off shortly after issuance at KFWA, though IFR to MVFR cigs should linger through the remainder of the afternoon before drier air advects in behind this morning`s clipper system. Snow has generally ended at KSBN with gradual improvement into MVFR/VFR this afternoon. VFR/dry otherwise tonight into tomorrow morning with light winds. && .IWX WATCHES/WARNINGS/ADVISORIES... IN...None. OH...None. MI...None. MARINE...Small Craft Advisory until 4 AM EST Monday for LMZ043-046. && $$ DISCUSSION...Skipper AVIATION...Steinwedel