045
fxus63 kiwx 301730
afdiwx
area forecast discussion
national weather service northern indiana
1230 pm est tue dec 30 2025
.key messages...
- more light snow today into early tonight. snowfall amounts
generally less than 2 inches, highest near lake michigan.
- an upper level disturbance will bring even more light snow of
1 to 3 inches early wednesday afternoon into wednesday night.
- wind chill values will be frequently dipping to between zero
and 10 above the next 3 nights.
&&
.discussion...
issued at 345 am est tue dec 30 2025
strong winds have diminished some from yesterday; however, the
winds were still gusting up to 25 mph as a deep upper low
lingered east of james bay. challenges over the next few days
will include chances, coverage and snow amounts from clipper
type systems or impulses racing southeast into the forecast
area. at the onset, a very cold airmass had taken up residence
over the upper great lakes. temperatures will stay much below
normal for this time of year. thermal profiles keep temperatures
below 0c the next few days with the indicated precipitation as
all snow. the dgz should stay in the cloud layer and will favor
accumulating snow. all considered, snowfall amounts should
range from 1 to 3 inches with this first system with the highest
amounts near lake michigan. the second fast moving systems will
bring snow in a 12 hour window from 18z wednesday (1 pm edt) to
06z wednesday night (early wednesday night). otherwise, the
first several days of 2026 will favor temperatures near to below
normal with dry weather. the deep low north of the area should
persist; however, some upstream ridging from further upstream
teleconnections should allow temperatures to rise near to above
normal early next week.
&&
.aviation /18z tafs through 18z wednesday/...
issued at 1225 pm est tue dec 30 2025
light lake effect snow will continue to impact ksbn into early
afternoon, and then visibilities should improve as the snow
tapers off. then another clipper system combined with more lake
enhanced snow is reinvigorated starting later this evening.
periods of mvfr cigs and visibility can therefore be expected at
both terminals through the taf period. west-southwest winds will
gusts to around 20 kts.
&&
.iwx watches/warnings/advisories...
in...none.
oh...none.
mi...none.
marine...small craft advisory until 7 pm est wednesday for lmz043-046.
&&
$$
discussion...skipper
aviation...cobb