Crystal, Indiana Weather Forecast Discussion

590
FXUS63 KLMK 071745
AFDLMK
Area Forecast Discussion
National Weather Service Louisville KY
145 PM EDT Sun Sep 7 2025
...Updated Aviation Discussion...
.KEY MESSAGES...
*  Patchy fog likely along and south of a Bowling Green, Ky to
   Richmond, KY line. Dense fog is possible in spots.
*  Lows this morning and Monday mornings may approach record low
   temperatures for this time of year (40s).
*  Beautiful weather today and Monday, with afternoon highs in the
   70s.
*  A very dry weather pattern is expected for next week with
   gradually warming temperatures.
&&
.UPDATE...
Issued at 912 AM EDT Sun Sep 7 2025
Some patchy dense fog lingers this morning in eastern and south-
central KY, but let the Dense Fog Advisory expire on time.
Visibility will now quickly improve through the mid-morning hours.
Otherwise, a batch of SCT-BKN mid-level clouds will continue
drifting southeast across southern IN and central KY this morning.
The cloudiness will be fairly brief at any one location, and a
mostly sunny afternoon can still be expected.
&&
.SHORT TERM /THROUGH TONIGHT/...
Issued at 346 AM EDT Sun Sep 7 2025
Early morning satellite imagery shows mostly clear skies across the
region.  A few mid-level clouds were moving through southern Indiana
and far northern Kentucky.  GOES night-time fog product is showing
widespread valley fog across our southeast sections.  Current
temperatures across the region were in the upper 40s to the lower
50s.
While no significant weather is expected through dawn, locally dense
fog will be possible in areas along and southeast of a line from
roughly Bowling Green to Winchester.  The fog will be most dense in
the river valleys, low-lying areas, and over bodies of water.  A
Dense Fog Advisory will be forthcoming with the forecast across our
southeastern sections. Overnight lows will be in the upper 40s/lower
50s.  Lexington still looks to tie or possibly break their record
low of 47 this morning.
For today, we`ll see the valley fog mix out after sunrise.  High
pressure across the Midwest will continue to build into the region.
Rather tranquil, if not down right beautiful weather is expected
across the region today.  Afternoon highs will be in the low-mid 70s
across southern IN and northern KY, with mid-upper 70s across south-
central KY.
For tonight, mostly clear skies are expected once again.  With high
pressure moving over the area, winds are expected to become very
light setting the stage for good radiational cooling.  Lows tonight
will be in the low-mid 40s in the rural areas, with upper 40s/near
50 in the urban areas.  Still believe that our typical cold spots
that have good radiational cooling could touch the upper 30s.  The
most likely spots would be the KY Mesonet stations in
Hancock/Meade/Harrison counties.
&&
.LONG TERM /MONDAY THROUGH SATURDAY/...
Issued at 346 AM EDT Sun Sep 7 2025
In the long term, the forecast thinking remains generally unchanged.
The upper level pattern across the CONUS is forecast to remain
rather blocky with a ridge across the Plains and troughs on the west
and east coasts.  The pattern looks hold through much of the week,
though the mid-level ridge over the Plains may start to build
eastward by the mid-late week time frame.
In terms of sensible weather, mostly sunny days and mostly clear
nights are expected through the period with no precipitation
expected.  Highs on Monday will warm into the upper 70s with
overnight lows in the upper 40s to the lower 50s.  Temperatures on
Tuesday will warm into the lower 80s with highs Wednesday through
Friday averaging in the mid-upper 80s.  Overnight lows through the
period will be in the upper 50s to the lower 60s.
&&
.AVIATION /18Z TAFS THROUGH 00Z TUESDAY/...
Issued at 145 PM EDT Sun Sep 7 2025
SCT-BKN cumulus is developing around 6 kft over central KY and
southeastern IN this afternoon. These clouds will diminish with
sunset. Breezy W/NW winds will also diminish with sunset, but until
then, expect 7-10 kts with occasional gusts to 15-18 kts. Gusts
should largely diminish by 22Z.
Mainly clear with light winds overnight. Some patchy fog will be
possible, but this is less likely to impact the terminals. Light
winds will veer N and then NE overnight and early Monday. Winds will
continue to take on a more easterly component on Monday as high
pressure slides northeast of the area.
&&
.CLIMATE...
Issued at 346 AM EDT Sun Sep 7 2025
Record Low Temperatures Possible...
Sun, Sept 7th       Mon, Sept 8th       Tues, Sept 9th
        Rec (Yr) | FCST     Rec (Yr) | FCST     Rec (Yr) | FCST
SDF     46 (1988) | 53      46 (1956) | 50      44 (1883) | 53
LEX     47 (2017) | 45      45 (1956) | 45      45 (2024) | 48
BWG     43 (1988) | 50      47 (1956) | 49      44 (1958) | 52
FFT     43 (1988) | 46      42 (1988) | 45      43 (2024) | 47
&&
.LMK WATCHES/WARNINGS/ADVISORIES...
KY...None.
IN...None.
&&
$$
UPDATE...EBW
SHORT TERM...MJ
LONG TERM...MJ
AVIATION...EBW
CLIMATE...MJ

NWS LMK Office Area Forecast Discussion