Area Forecast Discussion
Issued by NWS Northern Indiana

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FXUS63 KIWX 261834

National Weather Service Northern Indiana
234 PM EDT TUE JUL 26 2016

Issued at 231 PM EDT Tue Jul 26 2016

The humidity will gradually build through the week with the next
chance for showers and storms coming Thursday afternoon and
persisting into Saturday as an upper level trough deepens across
the middle part of the nation.


.SHORT TERM...(This Evening through Wednesday)
Issued at 231 PM EDT Tue Jul 26 2016

Tranquil wx conts this pd under the influence of low amplitude
ridging sfc and aloft and in concert w/swd displacement of active
frontal zone through srn IL/IN.


.LONG TERM...(Wednesday Night through Tuesday)
Issued at 231 PM EDT Tue Jul 26 2016

Generaly zonal flw aloft underneath east Canada troughing will
break twd more upr ridging cntrd acrs the cntrl plains by erly nxt
week. Given a lack of a sig synoptic scale sw trough and inherent
weak flw aloft... xpc old synoptic fntl zone will remain
entrenched down alg the OH river this pd. Thus generally minimal
precip chcs seen as sig mstr rich theta-e ridge holds south of the
Great Lakes.

Some exception to this rule may dvlp twd lt dy7/dy8 in tandem w/bldg
upr ridge out west and degree of hgt amplifcation aloft that ensues.
This would fvr a btr downstream waa current that would dvlp newd
into the lakes and suggestive of a potential more active nw flw
pattn on mid nxt week and beyond hwvr ltl coherent signal as yet
present in med range solutions to hedge more strongly yet. Otrws
seasonable temps xpcd through the pd.


.AVIATION...(For the 18Z TAFS through 18Z Wednesday Afternoon)
Issued at 122 PM EDT Tue Jul 26 2016

VFR conditions will persist through the period with just a few
diurnal cu this afternoon and some high clouds from convection to
our south. Clouds will scatter overnight and calm winds may
support some patchy ground fog but low levels remain on the dry
side. Crossover temps in the low 60s may be difficult to
reach/exceed. A brief period of MVFR visibilities may be possible
around sunrise...mainly at KFWA...but confidence is too low to
include in the TAFs at this time.


.IWX Watches/Warnings/Advisories...



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