Area Forecast Discussion
Issued by NWS Northern Indiana

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

FXUS63 KIWX 241805

Area Forecast Discussion
National Weather Service Northern Indiana
205 PM EDT Sun Sep 24 2017

Issued at 205 PM EDT Sun Sep 24 2017

Unseasonably warm conditions will continue through Tuesday with
high temperatures primarily in the upper 80s to around 90. A
noticeably cooler air mass will then build into the region for the
latter half of the week.


.SHORT TERM...(Tonight and Monday)
Issued at 205 PM EDT Sun Sep 24 2017

Large scale ridge centered over the ern OH valley persists this
period. Expect another day of well above normal temps. Otherwise
sensible wx nil as airmass undergoes additional low level drying.


.LONG TERM...(Tuesday through Saturday)
Issued at 205 PM EDT Sun Sep 24 2017

One more day of heat Tue before ridge breakdown in response to
approach of Maria. Lead ejection of wrn sw energy headed for James
Bay by late Wed. Trailing cold frontal zone decays ewd through the
OH valley yet enough to displace low level thermal ridge south of
the OH river.

Secondary disturbance follows through the ern lakes Fri additional
cold advection Fri aftn into Sat morning before moderating late
weekend. Will follow blended pop solutions for late Fri/early Sat
given rather disparte solutions aloft across the lakes.


.AVIATION...(For the 18Z TAFS through 18Z Monday Afternoon)
Issued at 128 PM EDT Sun Sep 24 2017

VFR conditions will continue through the TAF period with strong
ridge anchored over the eastern CONUS. Weak SE gradient will also
persist and low surface dewpoints will limit morning fog/BR





Visit us at

Follow us on Facebook...Twitter...and YouTube at: is the U.S. government's official web portal to all federal, state and local government web resources and services.