000 
fxus63 kind 170723 
afdind 


Area forecast discussion 
National Weather Service Indianapolis in 
323 am EDT Tue Oct 17 2017 


Update... 
the long term section has been updated below. 


&& 


Synopsis... 
issued at 316 am EDT Tue Oct 17 2017 


Quiet weather can be expected through the week and into the weekend 
across central Indiana with high pressure slowly traversing the 
area. A frontal system will approach to end the weekend and begin 
next week with chances for showers. Above normal temperatures can be 
expected starting Wednesday. 


&& 


Near term /today/... 


Issued at 316 am EDT Tue Oct 17 2017 


High pressure building over the area will bring mostly sunny 
skies and highs in the mid to upper 60s with weak warm advection. 
High confidence in all forecast aspects. 


&& 


Short term /tonight through Thursday night/... 


Issued at 316 am EDT Tue Oct 17 2017 


A quiet short term period is expected under the influence of an 
upper ridge and building surface high pressure. Models are in good 
agreement and thus high confidence in dry weather and temperatures 
slowly increasing a bit each day. While lows tonight will still be 
in the low 40s under clear skies, some warm advection 
will cause temperatures to warm to above normal from Wednesday on. 


&& 


Long term /Friday through Sunday/... 


Issued at 321 am EDT Tue Oct 17 2017 


Issues for this period relate to timing of precipitation this 
weekend. Blended solution compromise may be tad fast. 


Friday...the period starts with warm ridge overhead that shifts 
to the East Coast Saturday. A large upper trough coming ashore 
in the Pacific northwest Friday will advance quickly across The Rockies 
and into the Great Lakes and Ohio Valley by Sunday. Models 
continue to differ on timing of rain with this trough. This 
weekend's system appears similar to last weekends which was 
best handled by GFS...so faster arrival of rains Sunday seems 
reasonable. 


Sundays rain producing trough continues to fill as it exits 
Sunday night but it is followed by a further intensification 
and deepening of the mid latitude trough over our region late 
Monday into Tuesday. The upshot of this will be a brief dry 
period Monday before a return to showery weather Tuesday. 


Temperature blends appeared pretty good and were followed. This 
period will be characterized by a shift from well above normal 
temperatures Friday into Sunday back nearer to normal Monday and 
below normal Tuesday with Max temperatures Tuesday remaining in 
the 50s. 


&& 


Aviation /discussion for the 17/06z taf issuance/... 


Issued at 1152 PM EDT Mon Oct 16 2017 


VFR conditions will continue to prevail for the duration of taf 
period with high pressure over the region. Winds will be light and 
variable. 




&& 


Ind watches/warnings/advisories... 
none. 
&& 


$$ 


Synopsis...cp 



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