Area Forecast Discussion
Issued by NWS Indianapolis, IN

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FXUS63 KIND 191420
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
1020 AM EDT Tue Sep 19 2017

.UPDATE...
The AVIATION Section has been updated below.

&&

.SYNOPSIS...
Issued at 351 AM EDT Tue Sep 19 2017

A weak disturbance moving through the area today will bring
showers and a few thunderstorms, especially early, before
precipitation ends by this evening and dry weather returns for
most of the next week under the influence of a strengthening
ridge aloft. Temperatures through the period will remain above
normal for the time of year.

&&

.NEAR TERM /Today/...

Issued at 914 AM EDT Tue Sep 19 2017

Updated for pops to better reflect lower chances west at the
moment. With trough still to the west, chances for storms will
continue through the day.

Still expecting some sunshine by midday to bring temperatures to
the upper 70s and lower 80s.

&&

.SHORT TERM /Tonight through Thursday Night/...
Issued at 351 AM EDT Tue Sep 19 2017

Vast majority of the short term will be dry as an upper level
ridge begins to build over the area. Will carry low pops in the
east very early this evening, ending by 03Z to account for any
lingering activity that develops this afternoon. A frontal zone
will approach late Wednesday night, and will carry a slight chance
of showers then to account for this, but this is quite low
confidence.

Consensus temperatures appear reasonable throughout per low level
thicknesses, and expect a warmup back into the mid 80s to low 90s
across the area Wednesday and Thursday.

&&

.LONG TERM /Friday through Monday/...
Issued at 228 AM EDT Tue Sep 19 2017

ECMWF suggests dry weather with above normal temperatures through
this period. ECWMF shows strong ridging in place aloft across the
eastern half of the country. The strong ridge looks to keep
Indiana protected from passing dynamics...keeping them well
northwest of Indiana. Meanwhile at the surface strong subsidence
beneath the ridge results in surface High pressure across the
eastern Great Lakes that keep as dry Easterly flow across Indiana
through the weekend. thus have trended toward a dry forecast. With
little to no change in air mass...have trended highs at or above
the forecast builder blend as warm air reigns supreme under the
ridge.

&&

.AVIATION /Update to KIND TAF/...

Issued at 1012 AM EDT Tue Sep 19 2017

Appears precipitation and storms have cleared area while stratus
after rain below 1000 feet has scattered and lifted. With trough
across western Indiana and breaks in cloud cover expected, we will
destabilize with isolated storms expected to re-develop this
afternoon.

Winds to remain at or below 10 knots.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

SYNOPSIS...Nield
NEAR TERM...Tucek
SHORT TERM...Nield
LONG TERM...Puma
AVIATION...Tucek



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