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000
FXUS63 KIWX 191628
AFDIWX

Area Forecast Discussion
National Weather Service Northern Indiana
1228 PM EDT Fri Apr 19 2024

.KEY MESSAGES...

- Dry and cool this weekend with widespread frost likely Sunday morning.

&&

.DISCUSSION...
Issued at 212 AM EDT Fri Apr 19 2024

Post frontal cold advection will wrap ewd this morning, tempering
diurnal heating even as skies clear. Otherwise gusty west winds ramp
quickly by mid morning through evening before abating. Wwd placement
of sfc ridge over NE and continued 5-10kt wrly flow overnight will
stave off frost potential tonight. However ridge elongates ewd into
the wrn OH valley Sat night in behind secondary cold front dropping
through the lakes. Weak gradient flow if not decoupling will bring
about widespread frost potential and perhaps a light freeze
northeast.

Thereafter some brief moderation in temps as upper flow flattens Sun-
Tue ahead of another wave progged to dig swd through the lakes Tue.
Some return flow inadv of this sys to support showers and perhaps
some isold thunder Tue aftn pending degree of moisture return.
Another cold Canadian airmass follows in its wake Tue night-Thu with
more frost/freeze potential.

&&

.AVIATION /18Z TAFS THROUGH 18Z SATURDAY/...
Issued at 1228 PM EDT Fri Apr 19 2024

Dry, cool and somewhat breezy conditions will persist in wnw
through the TAF cycle.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...None.
OH...None.
MI...None.
MARINE...Small Craft Advisory until 4 PM EDT Saturday for LMZ043-046.

&&

$$

DISCUSSION...T
AVIATION...Steinwedel