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FXUS63 KLMK 231845

Area Forecast Discussion
National Weather Service Louisville KY
245 PM EDT Tue Jul 23 2019

.Short Term...(This evening through Wednesday)
Updated at 300 PM EDT Tue Jul 23 2019

Aside from mostly clear conditions in the Bluegrass region, current 
satellite imagery shows diurnal cu field over much of our CWA. 
Otherwise, conditions have been quite pleasant and breezy today as a 
sfc high pressure continues to build in from the west. Winds are 
expected to weaken near sunset, and clouds should gradually clear 
overnight. With the aid of radiational cooling, overnight lows will 
fall into the upper 50s.

Wednesday will be much of the same in the way of clear and pleasant 
conditions, as the aforementioned high pressure orients itself over 
the Ohio Valley. Overall expecting to see highs in the low 80s with 
dewpoints in the upper 50s. Winds will continue to be northerly, 
however, gusts will not be as strong as they were today.


.Long Term...(Wednesday night through Tuesday)
Updated at 230 PM EDT Tue Jul 23 2019

A benign weather pattern will continue for much of the extended 
forecast period across central KY and southern IN. A stout 
persistent mid-level ridge will remain across the Rockies into the 
central Plains with the main westerlies and storm track across the 
northern tier of the U.S. and southern Canada. Flow aloft across the 
Ohio Valley will be rather broad and weak with surface high pressure 
remaining in control thru the upcoming weekend. Expect afternoon 
high temps in the lower and mid 80s Thu, and mid 80s to around 90 
Fri thru Sun. Lows Thu morning in the mid 50s to around 60 will 
slowly inch up thru the 60s thereafter. Humidity levels also will 
slowly rise during the late week period and this weekend, but still 
remain below values from the last few days.

Our next chance of rain should be early next week when models 
suggest that a weather disturbance coming over the western ridge 
axis will send a weak frontal boundary into the Ohio Valley. This 
would result in a more humid air mass and a potential band of 
showers and storms roughly Mon night and/or Tue.


.Aviation...(18Z TAF Issuance)
Updated at 115 PM EDT Tue Jul 23 2019

VFR conditions are expected during this TAF period as a high 
pressure system continues to build in from the west. While visible 
satellite shows diurnal cu developing across portions of central and 
south central KY, still expecting to remain dry. Northerly winds 
will be gusty at times this afternoon, however, they should weaken 
near sunset.



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