Lafayette, Indiana 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

075
FXUS63 KIND 271951
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
251 PM EST Tue Jan 27 2026

.KEY MESSAGES...

- Some blowing and drifting snow, especially in rural areas, possible
  at times through this afternoon.

- Be cautious of any black ice on roadways tonight as melting snow
  refreezes.

- Extreme Cold Warning now in effect from 10pm tonight to Noon EST
  Wednesday, with a Cold Weather Advisory in effect during that same
  time across far south-central IN.

- Temperatures will not get above freezing through at least next Tuesday.

- Low temperatures near or below zero will be expected each morning
  through at least Saturday.

- High temperatures through Sunday will only reach the teens to
  low 20s.

&&

.SHORT TERM (This evening through Wednesday)...
Issued at 249 PM EST Tue Jan 27 2026

Dry conditions are expected through the short term period as high
pressure generally remains in control. Latest surface analysis
depicts a cold front pushing through the region with increasing low
clouds. A tightening MSLP gradient is also producing breezy
conditions. Wind gusts between 25-35 mph are ongoing, but look for
these winds to taper off quickly into the evening once high pressure
builds in behind the departing front. Minor reductions in
visibilities have been reported due to blowing snow. Expect this
threat to also diminish once winds subside during the evening.
Patchy flurries cannot be completely ruled out over the next few
hours as forecast soundings show very marginal moisture within the
DGZ while the front passes.

Surface high pressure building in during the evening will promote
clearing skies and diminishing winds. This combined with the deep
snowpack in place strongly suggest the potential for temperatures to
plummet overnight. NBM tends to underestimate diurnal cooling in
these setups so blended in the NBM 25th and some high-res guidance
to lower temperatures. Lows tonight are expected to range from a few
degrees below zero to as low as 11 degrees below zero. Slightly
lower temperatures cannot be ruled out as some high-res and
deterministic guidance suggest, but uncertainty exist. The main
uncertainty is how long it takes for clouds to clear out and how
quickly winds taper off this evening.

Even with the slight uncertainty it appears likely temperatures will
fall to as low as -10F or so, especially in rural areas. This along
with light winds could result in wind chills as low as 20 to 25F
below zero. An Extreme Cold Warning is now in effect for much of
central IN from 10pm this evening to noon EST Wednesday. A Cold
Weather Advisory remains in effect for that same time frame across
far south-central IN with winds chills as low as 15 to 20F below
zero. South-central IN could potentially reach warning criteria as
temperatures plummet, but confidence is slightly lower for these
areas due to temperatures warming into the mid 20s this afternoon.
Be cautious of any black ice on roadways tonight as melting snow
refreezes.

Look for quiet weather on Wednesday with a very cold start to the
day. MOdest warming of 850mb temps along with partly cloudy skies
should warm temperatures into the teens. Far SW counties may warm to
near 20F. Breezy conditions are expected again, mainly near or north
of I-70. Max wind gusts will likely be weaker than today, around 20-
25 mph.

&&

.LONG TERM (Wednesday night through Tuesday)...
Issued at 249 PM EST Tue Jan 27 2026

Continued Cold and mainly dry weather will be expected on Wednesday
night through Tuesday.

Models suggest a continued highly amplified flow across the CONUS
from Wednesday Night onward. Strong ridging was in place over the
western CONUS, allowing a continued northwest flow across the United
States east of the Rockies. A continued flow of cold and dry
Canadian air will spill across Indiana during the end of the work
week and into next week.

An upper low and trough associated within the flow will push across
Indiana on Friday into Saturday. This will allow for a reinforcing
surge of cold air across Indiana. A surge of 850mb temps less than
-18C are poised to arrive across Indiana on Saturday amid cold north
flow.  This surge of arctic air will stretch from the eastern Great
Lakes to IL and MO and be our main weather feature through the
weekend, providing more well below normal temperatures. Below zero
or single digit low temperatures will be expected through Sunday
morning and highs will continue to only reach the teens to near 20.
More cold weather advisories appear in store.

Ridging aloft over the upper midwest this weekend will allow for the
development of a strong surface high pressure which is expected to
remain across the area through at least Tuesday, featuring a few re-
organizations through the period.

&&

.AVIATION (18Z TAF Issuance)...
Issued at 1231 PM EST Tue Jan 27 2026

Impacts:

- Gusts of 20-30KT at times today

- Period of MVFR ceilings possible, mainly at IND/LAF this afternoon

- Potential for 18-22 kt gusts Wednesday afternoon

Discussion:

Expect gusts between 20-30KT at times out of the west-northwest this
afternoon, tapering off into the evening. Lower clouds will move in
this afternoon as another cold front passes through the region. Some
MVFR ceilings will be possible through about 00Z Wednesday,
primarily at LAF/IND. Cannot completely rule them out at HUF/BMG so
a brief tempo was included.

Winds may produce some blowing snow, though it remains to be seen
whether it will be enough to actually impact visibilities/be
observed at the sites after a day or two of compaction of the
snowpack. Winds become light overnight before increasing again
Wednesday with 18-22kt westerly gusts possible at times.


&&

.IND WATCHES/WARNINGS/ADVISORIES...
Extreme Cold Warning from 10 PM this evening to noon EST
Wednesday for INZ021-028>031-035>049-051>057.

Cold Weather Advisory from 10 PM this evening to noon EST
Wednesday for INZ060>065-067>072.

&&

$$

SHORT TERM...Melo
LONG TERM...Puma
AVIATION...Melo