Area Forecast Discussion
Issued by NWS Northern Indiana

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FXUS63 KIWX 241047

Area Forecast Discussion
National Weather Service Northern Indiana
647 AM EDT Mon Apr 24 2017

Issued at 139 AM EDT Mon Apr 24 2017

A large ridge to the north over southern Canada will help keep warm
weather over the forecast area through Wednesday. Highs will be
in the 70s to lower 80s. There is a chance for showers and
thunderstorms Wednesday with subsequent chances for rain late in
the week and through the weekend.


.SHORT TERM...(Today and Tonight)
Issued at 350 AM EDT Mon Apr 24 2017

Continued warm and dry this period as sfc ridge and attendant low
level thermal trough breakdown further. Should see temps near a cat
warmer versus Sunday aftn.


.LONG TERM...(Tuesday through Sunday)
Issued at 350 AM EDT Mon Apr 24 2017

A turn toward a wet and stormy pattern expected mid to late period.
However deep cutoff over the sern US continues to wreck havoc with
general trend of to much ewd progression seen with spread of pac
wave train inland across the Conus. And this is clearly evident in
multiday guidance trends midweek as secondary sw disturbance
placement/track had clearly backed appreciably west. In fact blended
pops should just be dropped entirely for Wed period at this point
yet collaboration prevents it. Some ewd erosion/shrinkage was made
though to account for ern neighbors and expand no pop mention

Still expect truncated likely pops through wrn zones has a
legitimate chance of verifying late Wed night/Thu morning before
cold front washed out through the ern OH valley. Otherwise most
vigorous wave amplifies significantly through the srn Rockies
this weekend. Ewd flood of return gulf moisture impressive and
will activate nwd returning warm frontal zone Saturday followed by
warm sector convection ahead of strong cold front Sunday.


.AVIATION...(For the 12Z TAFS through 12Z Tuesday Morning)
Issued at 643 AM EDT Mon Apr 24 2017

High pressure over southern Canada will keep an east flow over
northern Indiana. Winds should remain around or under 10 knots.
Some MVFR clouds are expected to spread into the area after
midnight, especially at Fort Wayne as moisture returns begins.





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