288
FXUS63 KLMK 021050
AFDLMK

Area Forecast Discussion
National Weather Service Louisville KY
650 AM EDT Wed Jul 2 2025

...Updated Aviation Discussion...

.KEY MESSAGES...

* Less humid conditions today and Thursday.

* Mostly sunny Independence Day, with afternoon highs in the low
  90s.

* Turning hot and humid again this weekend, with at least small rain
  and thunderstorm chances returning on Sunday.

&&

.SHORT TERM /THROUGH TONIGHT/...
Issued at 230 AM EDT Wed Jul 2 2025

Through Sunrise... Low level moisture is still present over our far
eastern areas. This moisture, combined with calm winds, clear skies,
and recent rain has allowed for areas of dense fog to develop in our
far eastern counties and over the Lake Cumberland region. An SPS was
issued earlier for these areas and expires at 13Z.

Today and Tonight... Northwesterly flow aloft will help to keep low
dew points over the region and conditions more comfortable. Surface
high pressure will nose in from the west bringing light winds and
dry weather. Plenty of sunshine tomorrow will allow high
temperatures in mid-upper 80s. Overnight, patchy fog will be
possible with clear skies and calm winds.

&&

.LONG TERM /THURSDAY THROUGH TUESDAY/...
Issued at 230 AM EDT Wed Jul 2 2025

Thursday - Independence Day...

Troughing over the Great Lakes will push off to the northeast and
ridging will drift over the region. This will increase heights over
the Ohio Valley and increase temperatures. Expecting to see high
temperatures in the upper 80s and low 90s. Surface high pressure
will remain allowing for continued dry weather, light winds, and
mostly sunny skies.

This Weekend into Mid Next Week...

Ridging continues to build over the region through the weekend,
allowing temperatures to increase each day into the low-mid 90s.
Surface high pressure will slip east of the region Saturday into
Sunday, which will bring a return of southwesterly flow and
moisture. Late Saturday, a weakening wave along the periphery of the
upper ridging may bring some isolated to scattered chances for
showers over southern Indiana. Otherwise, Saturday should remain dry.

Late weekend, flow aloft becomes more zonal prior to troughing move
over the Great Lakes. This will send a weak cold front through the
Ohio Valley. With increased moisture ahead of the front, shower and
storm chances will increase late Sunday night through Monday.

Depending on how far south the cold front stalls will determine if
we can be dry on Tuesday and Wednesday. Brief, weak high pressure
will build in behind the front and ridging will build aloft. Best
chances in this case for rain would be over the far southern areas.

&&

.AVIATION /12Z TAFS THROUGH 18Z THURSDAY/...
Issued at 649 AM EDT Wed Jul 2 2025

VFR conditions are expected during most of the period, excluding
some possible light fog in the morning at HNB. Surface high pressure
will keep winds on the lighter side through the period. In the late
morning, some SCT Cu around 4kft may develop over the BWG/HNB/SDF.
After sunset, winds will become calm to light and skies remain clear
overnight.

&&

.LMK WATCHES/WARNINGS/ADVISORIES...
KY...None.
IN...None.

&&

$$

SHORT TERM...SRW
LONG TERM...SRW
AVIATION...SRW