Area Forecast Discussion
Issued by NWS Northern Indiana

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FXUS63 KIWX 261017

Area Forecast Discussion
National Weather Service Northern Indiana
617 AM EDT FRI AUG 26 2016

Issued at 1249 AM EDT Fri Aug 26 2016

Dry and less humid conditions can be expected today as high
pressure shifts into the Great Lakes. Highs this afternoon are
forecast to reach the low to mid 80s, with lows Friday night into
the 60s. Chances for showers and thunderstorms will then return
Saturday into Sunday as a frontal boundary lifts into the region.
Humidity levels will also be on the increase this weekend with
highs each day in the 80s.


Issued at 609 AM EDT Fri Aug 26 2016

Fog has become fairly widespread over the cwa with Fort Wayne
media reporting several school delays as a result. Vsbys mainly in
the 1/4-1/2mile range and still expect fairly shallow fog will mix
out rather quickly after daybreak, so have issued an SPS
highlighting, expanded mention to areas of fog in grids, and
extended ending time to 13z. Other adjustment to fcst was to add
sct showers/tstms across the far sw early today as wk shrtwv movg
ene over periphery of mid atlantic states ridge was sustaining
convection across east central IL attm which appears will clip our
area in the next few hours.


.SHORT TERM...(Today and Sat night)
Issued at 344 AM EDT Fri Aug 26 2016

High pressure ridge building in from the nw behind wk cdfnt which
moved across the area yday aftn/eve. Still moist low levels
combined with light winds and a period of clear skies has
resulted in patchy fog development across our cwa. High
cloudiness streaming n-ne around strong upr high over the mid
Atlantic states and ahead of a trof digging into the nrn Plains
expected to prevent fog from becoming widespread dense early this
morning and result in just filtered sunshine today. Wk waa will
develop tonight as this ridge moves off to se Canada.
Showers/Tstms expected to spread ne from the srn Plains into the
waa regime to our west, aided by wk disturbances in the rather
strong swly flow aloft. This sct convection should spread across
our area late tonight through Sat as the nrn Plains upr trof moves
east to the upr grtlks.


.LONG TERM...(Sunday through Thursday)
Issued at 344 AM EDT Fri Aug 26 2016

Wk backdoor sfc cdfnt associated with upr trof movg east into
se Canada Sunday expected to move into our area and probably
linger through Monday, psbly triggering isolated mainly aftn/eve
thunderstorms in this timeframe. Mid Atlantic states upr ridge
expected to shift west to the plains by Tue as a rather strong upr
level trof digs into the west coast. Shrtwv movg over the top of
the dvlpg plains ridge expected to cause a wk cdfnt to move
through our area Tue psbly providing sufficient support for a few
tstms. High pressure should build in behind this front providing
fair wx and slightly cooler temps Wed/Thu.


.AVIATION...(For the 12Z TAFS through 12Z Saturday morning)
Issued at 619 AM EDT Fri Aug 26 2016

Low stratus/fog at KFWA should burn off near or shortly after TAF
issuance leaving a VFR/light wind forecast for both KSBN/KFWA today
into tonight as drier low level air filters in behind a frontal
boundary. Area of convection near this boundary should pass south of
KFWA early this morning, though cannot completely rule out a brief
period of light rain at KFWA through mid-morning on northern


.IWX Watches/Warnings/Advisories...



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