731
fxus63 kiwx 292354
afdiwx
area forecast discussion
national weather service northern indiana
754 pm edt wed apr 29 2026
.key messages...
- scattered rain showers through this evening and again thursday
afternoon/evening.
- below normal temperatures are expected into the start of the
weekend with moderation closer to normal into next week.
- frost may impact sensitive vegetation friday night into early
saturday morning.
&&
.discussion...
issued at 158 pm edt wed apr 29 2026
a general west to northwest flow aloft will keep the region in a
cooler and much less active pattern for the next 7 days or more.
that`s not to say there isn`t a few items to look at, but in
comparison to the past several weeks it is a welcome breather.
a series of weak disturbances will help keep periods of clouds and
even some lighter showers around this afternoon/evening as well as
later thursday afternoon into thursday night. qpf amounts will be on
the light side and not cause any concerns with the hydro issues
still in play for some areas. temperatures will be chilly (and
generally below normal) for late april and in comparison to recent
times. although lows both tonight and thursday night will dip into
the 30s, cloud cover, light precip and a modest breeze should limit
any frost potential.
a somewhat more pronounced trough pushes through friday, bringing
with it additional caa and more importantly clearing skies as well
as diminishing winds. this will set the stage for widespread frost
development with some areas in the ne possibly going below freezing
for a light freeze. too early for any headlines, but suspect at
least a frost advisory will be hoisted at some point with maybe a
need for a freeze watch/warning. the cool conditions will persist
into saturday before the deeper trough begins to push north and some
moderation back to more normal temperatures (60s) arrive.
disturbances will still move through the flow and bring some chances
for showers next week.
&&
.aviation /00z tafs through 00z friday/...
issued at 750 pm edt wed apr 29 2026
several upper level disturbances continue to track across the
great lakes region this evening. a lead short wave is working
across southeast lower michigan and has been associated with
some greater rain shower coverage, while another upstream vort
is tracking across west central/northwest wisconsin. this wi
vort max will allow a weak reinforcing low level trough axis to
bring another round of cold advection tonight. broad cyclonic
flow, cold advection, and relatively moist low levels should
continue to promote low clouds at least through the early
overnight. initial ifr cigs at ksbn to begin this period should
improve to lower end mvfr with passage of this secondary sfc
trough after 02z. confidence in ending mvfr cigs is on the low
side given this synoptic setup, but potential should lower
headed into daybreak thursday. overall quiet aviation weather
conditions expected for thursday with diurnal mixing possibly
allowing some northwest 15 to 20 knot gusts in the late
morning/afternoon.
&&
.iwx watches/warnings/advisories...
in...none.
oh...none.
mi...none.
marine...none.
&&
$$
discussion...fisher
aviation...marsili