451
FXUS63 KIWX 031014
AFDIWX

Area Forecast Discussion
National Weather Service Northern Indiana
614 AM EDT Thu Apr 3 2025

.KEY MESSAGES...

- Additional rain, possibly heavy returns to the area late
  Friday and again late Saturday.

&&

.DISCUSSION...
Issued at 234 AM EDT Thu Apr 3 2025

Deep meridional upper trough through the wrn US accentuated by
120+ knot upper jet streak will continue to dig south twd the
US/Mexico border through late Fri. This deep sys ejects out in
west TX Sat and accelerates newd through the OH valley late Sun.
Composite outflow reinforced cold front early this morning will
stall out over the mid MS valley today before retreating back
north Fri in response to upstream sfc wave development. This
yields and increasing warm advective pattern developing late Fri
and again late Sat with potential for two additional rounds of
heavy rainfall in some areas. Best model consensus is across
southern zones and will hold with areal extent of prior issued
long duration flood watch yet acknowledge potential exists for
some nwwd creep in frontal zone in later model runs.

In wake of this sys, sharp ern Canada upper trough dvlps/deepens
with at least 2 shortwaves progged to drop through the lakes, one
late Mon and the other toward Thu. Unseasonably cold temps Sun-Tue
will claw their way back up late next week.

&&

.AVIATION /12Z TAFS THROUGH 12Z FRIDAY/...
Issued at 613 AM EDT Thu Apr 3 2025

Cold front has cleared both sites with SW winds settling back in
with in an hour or so of passage. VFR conditions will dominate
through the period.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...Flood Watch through Sunday morning for INZ009-017-018-020-
     022>027-032>034.
OH...Flood Watch through Sunday morning for OHZ001-002-004-005-015-
     016-024-025.
MI...None.
MARINE...Small Craft Advisory until noon EDT today for LMZ043-046.

&&

$$

DISCUSSION...T
AVIATION...Fisher