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000
FXUS63 KIWX 210622
AFDIWX

Area Forecast Discussion
National Weather Service Northern Indiana
222 AM EDT Sun Apr 21 2024

.KEY MESSAGES...

- Dry and cool this weekend with frost possible Monday morning.

- Showers Tuesday, turning cool Wednesday-Thursday

- Big warmup next weekend

&&

.DISCUSSION...
Issued at 222 AM EDT Sun Apr 21 2024

Extensive cloud plume in association with weak upper wave advancing
out of srn WI curtailing a certain frost/freeze across the area this
morning as it holds on tight through daybreak. Chilly low level
thermal trough weakens through the day, offset by strong late April
insolation. However one more potential frost late tonight in
proximity to sfc ridge axis through the lower MS/OH valleys with
decoupling likely late and clear skies. Best chances far northeast
outside a greater influence from emerging warm advection.

Brief moderation follows as warm advection deepens ahead of next
nrn stream wave digging sharply sewd through the lakes late Tue.
Lack of sig return moisture into this sys subdues rain potential but
made up somewhat by strong wave dynamics. Dropped thunder mention
altogether given inadequate looking theta-e ridge poking north into
the srn lakes. Another chilly cold advection wing follows post
frontal Wed-Thu with another bout of frost potential early Thu am.

Thereafter pronounced/deep wrn troughing develops signaling a
welcome pattern change with much warmer and eventually wetter
weather next weekend and beyond.

&&

.AVIATION /06Z TAFS THROUGH 06Z MONDAY/...
Issued at 1256 AM EDT Sun Apr 21 2024

Subsidence and some drying through the 900-700 mb layer should
help scatter out the stratocu deck that was lingering. The
leading edge of clearing should reach SBN by 1030Z and FWA some
time later. Otherwise, VFR should prevail through the period.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...None.
OH...None.
MI...None.
MARINE...None.

&&

$$

DISCUSSION...T
AVIATION...Skipper