Area Forecast Discussion
Issued by NWS Northern Indiana

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FXUS63 KIWX 260825

Area Forecast Discussion
National Weather Service Northern Indiana
425 AM EDT Thu Apr 26 2018

Issued at 400 AM EDT Thu Apr 26 2018

High pressure will provide clear skies with frosty conditions
early this morning with temperatures falling to around 30 to the
mid 30s. Temperatures will rebound into lower to mid 60s this
afternoon. A frontal system will bring a chance of rain tonight
through Friday night, possibly mixed with snow late Friday night
before ending. Decreasing clouds can be expected Saturday, but
highs will only be around 50. Temperatures will then warm early
next week with highs into the 70s Monday through Wednesday.


.SHORT TERM...(Today through Saturday night)
Issued at 358 AM EDT Thu Apr 26 2018

Much colder air had spread across the area early today behind a
cold front. Another upper level system will bring a chance for
rain tonight into Friday night. Upper level jet support including
the left exit region of an upper jet associated with a clipper
type system will help to bring a good chance for rain early Friday
night. Much colder air will spread back across the area Friday
night with temperatures falling into the middle and upper 30s by
daybreak Saturday morning. After a chilly day Saturday, a frosty
night will follow with lows falling into the lower and mid 30s. A
Public Information Statement and Special Weather Statement have
been issued due to increasing outdoor activity of the planting of
sensitive vegetation.


.LONG TERM...(Sunday through Wednesday)
Issued at 358 AM EDT Thu Apr 26 2018

An upper level ridge will build over the area early next week and
cause temperatures to rise well above normal. Low level thermal
fields support highs in the 70s and possibly 80 Monday through
Wednesday. Have kept temperatures a little above the model blend
guidance in this regard. Rain chances will be increasing during
the middle of next week as a lot of energy become available in an
amplifying upstream upper level trof. Precipitable water values
will rise well above normal and will probably approach
climatological maxes for this area and this time of year setting
the stage for a widespread rain event probably just past the end
of the forecast period.


.AVIATION...(For the 06Z TAFS through 06Z Thursday Night)
Issued at 142 AM EDT Thu Apr 26 2018

VFR expected this period. Still possible for some brief and patchy
ground fog around sunrise but too small of a chance to introduce
into terminals. Light NW winds today under 10 knots. Light winds
will take a more southerly component late in period as ridge axis




SHORT TERM...Skipper
LONG TERM...Skipper

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