Special Weather Statement, NWS Louisville, KY

Area Forecast Discussion
National Weather Service Louisville KY
319 PM EDT Sun Jun 13 2021

.Short Term...(This evening through Monday)
Issued at 230 PM EDT Sun Jun 13 2021

Cold front roughly paralleling the Ohio River just after 18Z, with a
fairly agitated Cu field and a few CB over northern Kentucky in just
the last 30 min or so. More favorable shear is passing north of our
area, but strong low-level lapse rates will support pulse convection
and some marginally severe wind gusts, mainly near an instability
axis that sits east of Interstate 65 and southeast of the Ohio
River. The strongest convection on Saturday affected the Bluegrass
region and points to the south, and that will likely be the case
again today.  Will message strong storms with gusty to locally
damaging winds.

Front is progged to push southward across Kentucky this evening, and
threats will diminish with the loss of heating. We'll clear from NW-
SE, and with less humid air filtering in tonight should be a few
degrees cooler than the last several nights.

Upper trof digs into the Great Lakes on Monday, with another weak
sfc boundary (in the cool season we would say "reinforcing cold
front") dropping south into the Ohio Valley late in the day. GFS
wants to spit out QPF in the late afternoon/early evening, but it
seems to be bringing too much mid-level moisture back into the
picture. Will stick with a dry forecast, leaving POPs at a silent 10
in the afternoon.

&&

.Long Term...(Monday night through Sunday)
Issued at 315 PM EDT Sun Jun 13 2021

An upper level ridge stretching from the Four Corners region
northward into Saskatchewan will continue to expand Monday night
into Tuesday. This will deepen a trough across the Great Lakes and
Ohio pushing the first of two shortwaves through the region. Sfc
boundary will exit to the south Monday night/Tuesday morning. We
will be under a deep northerly flow advecting in cooler and drier
air over the region. Lows by Tuesday morning will be in the upper
50s to near 60 as afternoon highs will be near to slightly below
seasonal average in the low/mid 80s under mostly sunny skies. The
second shortwave will work across the Ohio Valley Tuesday night into
Wednesday but with limited moisture no precipitation is expected.
Sfc

Wednesday and Thursday sfc high pressure will drop southward out of
the Great Lakes and into the Ohio Valley by Thursday as the upper
level trough slides off the the east over the eastern US. Cool
mornings with lows in the low/mid 50s by Thursday morning. Highs
Wednesday and Thursday will be in the upper 70s Wednesday and near
80 on Thursday. Temperatures will start to warm back up as moisture
increases with a return southerly flow late Thursday and Friday as
weak ridging aloft noses into the region. Highs will return to the
mid/upper 80s and stay there as we go into the weekend.

Another trough and associated sfc cold front will start to work
across the Ohio Valley Friday night into the weekend and is expected
to stall across the OH/TN river valleys. This could lead to a return
of precipitation and unsettled weather for the area.

&&

.Aviation...(18Z TAF Issuance)
Issued at 1255 PM EDT Sun Jun 13 2021

Main challenge in this TAF set is the timing and impact of afternoon
TS, which are most likely to impact LEX. Coverage will be spotty at
best, so will handle is with a TEMPO in the mid to late afternoon.
Strong boundary-layer mixing will keep any ceilings VFR, but will
include some restriction to vis in the TEMPO. MVFR seems the best
bet for anything that will stick around, but very brief IFR is
possible in the heaviest rain. There's enough of a window of
opportunity for storms at SDF that we'll initialize with VCTS/CB
mentions, but running that til 23Z is probably even a bit generous.
Probabilities are too low at BWG, and the window has closed at HNB.

Other than the storms this afternoon, expect VFR conditions with N-
NW winds, backing to more of a WNW direction on Monday.

&&

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

Short Term...RAS
Long Term...BTN
Aviation...RAS

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Special Weather Statement
National Weather Service Louisville KY
359 PM EDT Sun Jun 13 2021

KYZ029-038-045-132030-
Bullitt-Spencer-Nelson-
359 PM EDT Sun Jun 13 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN SPENCER...
NORTHERN NELSON AND SOUTHEASTERN BULLITT COUNTIES...

At 359 PM EDT, a strong thunderstorm was located 10 miles north of
Bardstown, moving south at 15 mph.

Winds in excess of 40 mph and half inch hail are possible with this
storm.

Locations impacted include...
Bardstown, Samuels, East Bardstown, Highgrove, Samuels Field Airport,
Deatsville, Withrow, Bourbon Springs, Coxs Creek and Lenore.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 3799 8539 3778 8541 3783 8566 3786 8561
      3787 8561 3791 8558 3795 8557 3796 8553
      3799 8549
TIME...MOT...LOC 1959Z 016DEG 13KT 3795 8553

RAS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
404 PM EDT SUN JUN 13 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0250 PM     TSTM WND DMG     MORGAN MANOR NEIGHBORHO 38.20N 84.71W
06/13/2021                   SCOTT              KY   PUBLIC

            TREE DOWN IN THE MORGAN MANOR NEIGHBORHOOD
            IN GEORGETOWN, KY AT APPROXIMATELY 2:50PM.

&&

SRM

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