Area Forecast Discussion
Issued by NWS Northern Indiana

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FXUS63 KIWX 210551

Area Forecast Discussion
National Weather Service Northern Indiana
151 AM EDT Sat Apr 21 2018

Issued at 220 PM EDT Fri Apr 20 2018

High pressure will provide clear skies and gradually warmer
temperatures through the weekend. Mild weather this weekend and
beyond with highs in the 60s. Dry weather through Monday, followed
by increasing chances for rain into Wednesday.


.SHORT TERM...(Tonight and Sunday)
Issued at 220 PM EDT Fri Apr 20 2018

High pressure will anchor across the ern lakes this period as srn
stream bowling ball wraps up across OK Sat and into AR Sun. Thus
clear skies and light winds will predominate through Sunday.


.LONG TERM...(Sunday night through Thursday)
Issued at 220 PM EDT Fri Apr 20 2018

Potent srn stream sw will hold south through the TN valley through
Tue before lifting out through the mid atlantic Wed ahead of kicker
nrn stream sw disturbance amplifying sharply through the wrn lakes.
This system looks to bring a good chance for rain to the area Wed as
it swings through the OH valley. Subsequent following secondary
disturbance wraps up through the nrn lakes Fri with another round of
rain likely late Thu into early Fri. Combination of both of these
vigorous systems will drive another shot of cold air, albeit brief,
into the OH valley for Fri. Until then extended spring like
temperatures abound with daily highs in the 60s outside typical lake
shadow northwest zones.


.AVIATION...(For the 06Z TAFS through 06Z Saturday Night)
Issued at 145 AM EDT Sat Apr 21 2018

Continued VFR through the period and beyond. Little more than
middle/high level clouds associated with plains vortex spilling
northeast into strong ridging. Dry/subsident subcloud layer to
prevail. Provided some detail for onshore/lake breeze penetration
into KSBN about midday/early afternoon.





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