942
fxus63 kiwx 290944
afdiwx
area forecast discussion
national weather service northern indiana
444 am est mon dec 29 2025
.key messages...
- strong west to northwest winds today will gust to 55 mph. an
occasional gust to 60 mph is possible near lake michigan.
- lake effect snow and blowing snow is likely near and north of
the toll road over indiana and far southern lower michigan.
- cold this week to end 2025 and start the new year. highs will
be mostly in the 20s with wind chills frequently dipping to
near zero.
&&
.discussion...
issued at 359 am est mon dec 29 2025
the fast moving cold front has cleared northwest ohio as of 4
am est. very strong winds behind the front have been buffeting
the entire forecast area. the strong pressure gradient will
remain over the area through today allowing the strong winds to
continue. west to northwest winds of 30 to 40 mph with gusts to
55 mph have been occuring overnight. these strong winds are
expected to continue today. have continued the wind advisory for
the entire area. a few gust to 60 mph are likely along berrien
county shoreline of lake michigan. the surface low was over the
georgian bay with a center pressure below 984 mb. the flash
freeze has been occuring overnight with areas of water on
pavement rapidly freezing and producing icy spots.
light snow has been falling associated with the low pressure
system. the snow was beginning to be enhanced downstream of lake
michigan where the heavier snow amounts are expected. lake
effect snow amounts generally between 3 and 5 inches are
expected; however, locally bands will likely be capable of
producing 6" or more. snow ratios should be quite high later
today with values rising to between 15:1 and 20:1. temperatures
this upcoming week will not be able to recover much with highs
mainly in the 20s with lows in the teens. wind chill values
should dip frequently to zero. at this time, do not plan to
issue a cold weather advisory, but plan to mention these cold
temperatures in the hazardous weather outlook product and also
social media products. otherwise, a second surge of arctic air
will help keep highs below freezing to end 2025 and begin the
new year.
&&
.aviation /06z tafs through 06z tuesday/...
issued at 1223 am est mon dec 29 2025
a strong area of vorticity pushes through the area in the first part
of this taf period in conjunction with a fropa. this helps to usher
in the cold air and keep the strong wnw winds going tonight through
much of monday. gusts between 35 and 45 kts will be possible.
it also sets off some snow that reaches sbn as early as 8z that
continues into monday night with the strongest (>1"/hr rates per
the href) looking to move into the area between 12 and 15z.
snow probably waits until 12z to finally reach fwa. with all of
this mind, will continue with mvfr cigs through the bulk of the
period, but ifr/lifr vis will be possible under the heavier snow
bands.
&&
.iwx watches/warnings/advisories...
in...wind advisory until 7 pm est /6 pm cst/ this evening for
inz005>009-012>015-017-018-020-022>027-032>034-103-104-
116-203-204-216.
winter weather advisory until 1 am est /midnight cst/ tuesday
for inz005-103-104-204.
oh...wind advisory until 7 pm est this evening for ohz001-002-004-
005-015-016-024-025.
mi...wind advisory until 7 pm est this evening for miz078>081-177-
277.
winter weather advisory until 1 am est tuesday for miz078-079-
177-277.
marine...storm warning until 4 pm est this afternoon for lmz043-046.
&&
$$
discussion...skipper
aviation...roller