Area Forecast Discussion
Issued by NWS Northern Indiana

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
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 42 43 44
FXUS63 KIWX 201926

Area Forecast Discussion
National Weather Service Northern Indiana
326 PM EDT Fri Oct 20 2017

Issued at 320 PM EDT Fri Oct 20 2017

Unseasonably warm and dry conditions will continue into Saturday
with highs well into the 70s. A cold front will move through
later Sunday into Sunday night with chances for showers. Much
cooler weather then will arrive behind this front with heavy
rainfall possible as a second system moves northeast along the
front early next week.


.SHORT TERM...(This Evening through Saturday)
Issued at 321 PM EDT Fri Oct 20 2017

Return flow will continue through Saturday as a large high pressure
area remains over the mid-Atlantic Seaboard. Winds should become
breezy by Saturday afternoon with highs reaching in the mid to
upper 70s. There should be an increase in clouds Saturday; otherwise
conditions will remain dry.


.LONG TERM...(Saturday Night through Friday)
Issued at 321 PM EDT Fri Oct 20 2017

Rain chances will be increasing early next week as an upper level
system approaches. The energy in the south originally gets sheared
off as the main trof moves east allowing an upper low to form over
the Southern Plains. This system is expected to later rephase with
the main stream and move northeast as a low pressure center. For
this package, favor the ECMWF that as been consistent with a large
area of deformation rain Monday into Tuesday. The GFS has been
farther east with the track of this system, but has trended west
toward the wetter ECMWF with the 12Z run. The EC has also been
consistent with rainfall amounts of 1 to 3 inches with locally
higher amounts. Have updated the Hazardous Weather Outlook product
for the possibility of heavy rain over all areas.


.AVIATION...(For the 18Z TAFS through 18Z Saturday Afternoon)
Issued at 1255 PM EDT Fri Oct 20 2017

Not much has changed since the previous forecast. Expect light
winds out of the south under mostly clear skies.




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

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.