Area Forecast Discussion
Issued by NWS Northern Indiana

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FXUS63 KIWX 260559

Area Forecast Discussion
National Weather Service Northern Indiana
1259 AM EST Sun Feb 26 2017

Issued at 1253 PM EST Sun Feb 26 2017

Scattered light snow showers and flurries will gradually come to
an end overnight as a ridge of high pressure approaches from the
west. Low temperatures tonight will drop into the lower 20s.
Warmer temperatures will arrive into the middle of next week with
increasing chances for rain once again. Colder air will return for
the second half of the upcoming week.


Issued at 727 PM EST Sat Feb 25 2017

Lingering lake enhanced snow showers/flurries should taper late
evening/early overnight hours as low level winds back in response
to approaching low level ridge axis. Bulk of snow should be of
trace variety this evening, although cannot completely discount
potential for a tenth of an inch or so for grassy areas next few
hours across far north central Indiana and southwest/south central
lower Michigan. Low clouds should erode overnight and will be
replaced by some increase in mid level clouds toward morning.
Previous mins look to be in good shape, but could see temps a few
degrees colder in spots (particularly western portions of the
forecast area) depending on extent/timing of low cloud scattering.
Updated zone forecasts will be sent shortly mainly to account for
minor tweaks to PoPs.


.SHORT TERM...(This Evening through Sunday)
Issued at 216 PM EST Sat Feb 25 2017

Upper level low will move into eastern Canada at the start of the
period, with any flurries or light snow showers expected to be
diminishing rapidly. Temperatures will hold in the lower to
middle 20s overnight. Weak low pressure will track across the
northern Great Lakes during the day Sunday. Clouds will increase
during the day, but forcing will remain removed from the area to
allow for dry conditions. A strong southwesterly wind will bring
more seasonable temperatures back into the area with highs in the
lower 40s.


.LONG TERM...(Sunday Night through Saturday)
Issued at 216 PM EST Sat Feb 25 2017

Roller coaster ride will continue in the long term with rapid
increase in heights across the region as long wave trough digs into
the western US and eventually eject mid to late week into the Great
Lakes. Temperatures will increase into mid week as gulf opens up and
series of waves draw in more moisture warranting an extended period
of chc to likely pops both with the northward surge of the warm
front and eventual low passage. Trough will dig across the Great
Lakes and send temperatures back below normal along with a threat
for additional lake effect snow showers Thurs-Fri with at least some
increase potential on longer fetch event to bring accumulations to
some areas.


.AVIATION...(For the 06Z TAFS through 06Z Sunday Night)
Issued at 1252 AM EST Sun Feb 26 2017

The surface ridge axis was near the IL/IN border with clearing of
the VFR SC deck just west of SBN. Lingering very light snow
showers will end at FWA as the ridge axis shifts east. Winds will
back to the southwest and increase later today, but conditions are
expected to remain VFR.


LM...Small Craft Advisory until 10 AM EST this morning for LMZ043-046.

     Gale Warning from 10 AM this morning to 7 PM EST this evening
     for LMZ043-046.



LONG TERM...Fisher

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