Area Forecast Discussion
Issued by NWS Northern Indiana

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FXUS63 KIWX 290913

Area Forecast Discussion
National Weather Service Northern Indiana
513 AM EDT Wed Mar 29 2017

Issued at 502 AM EDT Wed Mar 29 2017

A vigorous upper level system will spread showers and storms
across the area Thursday and Thursday night. Some strong to
locally severe storms are possible. Rainfall amounts should total
an inch by late Friday. Highs the rest of the week will be mainly
in the 50s and 60s with lows in the 30s and 40s.


.SHORT TERM...(Today through Friday)
Issued at 502 AM EDT Wed Mar 29 2017

A potent upper level system over the Texas Panhandle this morning
will track out of the Southern Plains today and move into the
Ohio Valley Region Thursday. A TROWAL associated with system will
move across the area Thursday afternoon followed by a secondary
TROWAL Thursday night. These features and will help enhance
rainfall amounts. Precipitable water values should approach
climatological maxes of 1.25 for this time of year. Expect most
rainfall amounts between 0.75 and 1.25 inches. Concern for any
storms Thursday afternoon into the evening becoming surface based.
Increased thunder chances near the front, especially south of
Highway 30. An isolated severe storm is possible from Marion to
Portland. south of the area. Lingering rain will diminish Friday
as high pressure builds across the area.


.LONG TERM...(Friday night through Tuesday)
Issued at 502 AM EDT Wed Mar 29 2017

There will be a break in the rain this weekend before another in
a series of upper level systems moves across the area. More rain
is likely early next week. Highs should be around 60 degrees.


.AVIATION...(For the 00Z TAFS through 00Z Wednesday Evening)
Issued at 1257 AM EDT Wed Mar 29 2017

Drier air associated with ridge over the upr grtlks was
overspreading nrn IN clearing out mvfr cloud deck. However, movement
of back edge was quite slow upstream of FWA, thus have pushed
back clearing there a few hours. Radiational cooling br/fg has
formed where skies cleared in srn MI but has been short lived as
drier air winning out, thus, only added a brief tempo mvfr vsby to
terminals. Otrws vfr conditions expected the remainder of the taf
period. Tight pressure gradient between high centered over se
Canada and low lifting ne from the srn plains will result in
increasing easterly winds today while high clouds associated with
the approaching low overspread nrn IN and grdly lower this




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

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