822
fxus63 kiwx 270951
afdiwx
area forecast discussion
national weather service northern indiana
451 am est tue jan 27 2026
.key messages...
- areas of blowing and drifting snow today.
- lake effect snow showers (1-3") today into this evening along
and north of the indiana toll road.
- wind chills as low as 20 below zero this morning. periodic
wind chills of around 15 to 20 below are also possible at
times through the remainder of the work week.
- additional lake effect snow chances wednesday through friday,
with higher chances on friday.
&&
.discussion...
issued at 220 am est tue jan 27 2026
tight low level height gradient under a clipper system
tracking through the northern great lakes will provide 25-35 mph
gusts, early morning advisory level wind chills, and concerns for
areas of blowing/drifting snow today. confidence in how much
lofting/blowing of recent fluffy snow and potential vis restrictions
remains uncertain, though expect rural/open areas to see at least
nuisance type impacts to travel. opted to continue with a sps for
most of the area to cover this threat. the exception remains along
and north of the in toll road where the winter wx advisory was
retained. this is due to a combination of deeper snow cover and
renewed les accums (1-3") along and behind a trailing cold front mid
morning through this evening. inversion heights and trajectories
are not nearly as favorable this time, though forecast soundings
show enough saturation with respect to ice and omega into
upper portions of the dgz for a 1-3" type snow within wnw flow
multibands. post-frontal boundary layer saturation, lake moisture
augmentation, and steepening lapse rates should also allow scattered
snow showers and flurries to blossom well inland during the day today
with a light dusting of snow possible in some areas.
winds likely diminish to under 10 knots tonight into wednesday with
ambient temps falling to either side of zero degrees fahrenheit
(coldest south). this will bring wind chills into the -10 to -20
range during this time which will likely result in the need for
another cold weather advisory (criteria is -15 or colder) for most.
low level flow trajectories back more to the wsw otherwise later
tonight into wednesday focusing lingering light les closer to the
lake in berrien/cass counties.
periodic les chances and prolonged periods of sub-zero wind chills
look to persist into the second half of the week within this
cold/cyclonic northwest flow regime. the period(s) to watch for more
significant lake effect snow still appear to be in the thursday night
through early saturday timeframe. a polar vort lobe drops south
through the great lakes and ohio valley with more northerly flow
trajectories. this could support some heavier les banding, though
confidence is low at this forecast range. some moderation follows
this weekend into early next week.
&&
.aviation /12z tafs through 12z wednesday/...
issued at 450 am est tue jan 27 2026
winds are expected to frequently gust to 25-30 knots today, starting
southwest this morning, then veering to the west-northwest behind a
cold front toward midday. this will likely result in areas of
blowing snow and reduced visibilities in mainly rural/open
areas, though cannot rule out a period of blsn at the terminals
during the day. lake effect snow showers/flurries and primarily
mvfr flight conditions likely develop today into this evening
at mainly ksbn otherwise with variable vis restrictions anticipated.
&&
.iwx watches/warnings/advisories...
in...cold weather advisory until 10 am est /9 am cst/ this morning
for inz005>009-012>015-017-018-020-022>027-032>034-103-
104-116-203-204-216.
winter weather advisory until 7 pm est /6 pm cst/ this evening
for inz005-103-104-203-204.
oh...cold weather advisory until 10 am est this morning for ohz001-
002-004-005-015-016-024-025.
mi...cold weather advisory until 10 am est this morning for
miz078>081-177-277.
winter weather advisory until 7 pm est this evening for miz078-
079-177-277.
marine...none.
&&
$$
discussion...steinwedel
aviation...steinwedel