607 
FXUS63 KIWX 110846
AFDIWX

Area Forecast Discussion
National Weather Service Northern Indiana
446 AM EDT Thu Oct 11 2018

.SYNOPSIS...
Issued at 443 AM EDT Thu Oct 11 2018 

In the wake of a cold frontal passage last night, expect much 
more fall like weather to settle in through next week. Highs will
be mainly in the 50s and lows in the 30s. Frost is likely tonight
south of highway 30 and west of highway 31. More frost is possible
early Saturday morning when lows drop into the lower to middle 
30s. 

&&

.SHORT TERM...(Today and Tonight)
Issued at 400 AM EDT Thu Oct 11 2018

Very chilly air will continue to spread across the area behind a 
cold front. Post frontal clouds will spread across the area early 
today, but should tend to dissipate as subsidence increases and
deepens. Temperatures today should be nearly steady as cold air
advection offsets diurnal warming. The cold air spreading over the
warm waters of Lake Michigan will produce lake clouds which will
move inland tonight and should prevent temperatures from falling
to freezing over most areas. However, where skies clear,
widespread frost is likely. This area in Indiana includes places
south of highway 30 and west of highway 31. After coordination,
have issued a frost advisory for tonight for these areas.
Additional counties including Laporte, Kosciusko and Wabash may
need to be added if skies clear farther northeast.


&&

.LONG TERM...(Friday through Wednesday)
Issued at 400 AM EDT Thu Oct 11 2018

The cold air will persist through the middle of next week as a
large upper level trof remains over the area. Frost is likely 
additional nights including Friday night as lows dip well down 
into the 30s. The remnants of Tropical Storm Sergio will stay well
southeast of the area and are not expected to bring heavy rain 
north of the Ohio River. A reinforcing shot of cold front behind a
system early next week will bring renewed chances for frost Monday
night and possibly Tuesday night. 

&&

.AVIATION...(For the 06Z TAFS through 06Z Thursday Night)
Issued at 144 AM EDT Thu Oct 11 2018

Generally improving conditions to VFR by late morning/midday. Some
minor wind gusts in well mixed/strong post frontal westerly flow.
Detail winds lessening as boundary layer cools/stabilizes late in
forecast period as surface ridge builds eastward from the Upper
Plains/Mississippi Valley into the western Great Lakes. 


&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...Frost Advisory from 2 AM EDT /1 AM CDT/ to 8 AM EDT /7 AM CDT/ 
     Friday for INZ012-013-015-020-022-023.

MI...NONE.
OH...NONE.
LM...Small Craft Advisory until noon EDT Friday for LMZ043-046.

&&

$$

SYNOPSIS...Skipper
SHORT TERM...Skipper
LONG TERM...Skipper
AVIATION...Murphy


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