210
fxus63 kiwx 200606
afdiwx
area forecast discussion
national weather service northern indiana
206 am edt fri mar 20 2026
.key messages...
- while overall temperatures will average out above normal,
several large temperatures swings will be in store with highs
ranging from the 40s to the 70s.
- overall dry pattern through next week with just a low chance
of rain on sunday.
&&
.discussion...
issued at 204 am edt fri mar 20 2026
main weather challenge into saturday lie with sorting out afternoon
highs as the area remains just to the south of the track of yet
another weak sfc low and upper level wave. a "cool" front is set to
drop in from the n and nw later today into tonight, setting up a
large spread in temps with low to mid 50s far nw and low to mid 70s
south. forecasted highs are in the 75th to 90th percentile, which
could suggest they are overdone. however, dry airmass, strong mixing
and increasing sun angle point towards a decent shot of
overachieving. thermal profiles begin to rebound saturday, but still
be several degrees cooler than today resulting in highs in the upper
50s to upper 60s.
waa will peak sat night/early sun prior to the arrival of a northern
stream trough and stronger cold front. upper level ridging in the sw
states as well as the lack of deep troughing will limit moisture
influx ahead of the cold front with mid to maybe upper 50 dewpoints
not arriving till later sunday afternoon. this will all likely
result in minimal chances for showers (isolated storm?) confined
mainly to e/se areas. afternoon highs will be problematic as well
with some areas seeing highs early in the day (nw) then steady or
falling from n to s as the colder air settles in through the day.
areas south of us-30 and especially us-24 could pop well into the
70s briefly before the colder air arrives.
more pronounced, yet brief, shot of colder air arrives behind the
front with more seasonable highs in store for monday (40s) before
the upper level ridge across the sw starts to edge east across the
southern states to allow some moderation in temps through mid week
as more of a west to east temp gradient sets up. a much stronger
cold front and upper level trough arrives after thursday to send
back to near (possible below) normal levels.
&&
.aviation /06z tafs through 06z saturday/...
issued at 121 am edt fri mar 20 2026
a theta-e plume passes through the area between now and friday
evening with a cold front pushing through midday friday into the
afternoon. plenty of dry air causes a dry frontal passage and will
keep flight conditions in vfr as a result. winds gradually veer
through the period with southerly winds becoming southwest in
the morning and becoming northwest during the afternoon. because
the front is already bisecting the area around midday, mixing
likely is stunted at sbn, but given timing it is possible that
fwa gets into favorable mixing. this allows the best chance for
25 kt gusts to be at fwa. while llws may be possible, it`s
residence time and intensity appears too low to include in these
tafs.
&&
.iwx watches/warnings/advisories...
in...none.
oh...none.
mi...none.
marine...none.
&&
$$
discussion...fisher
aviation...roller