Flash Flood Warning 47, NWS Paducah, KY

Area Forecast Discussion
National Weather Service Paducah KY
659 PM CDT Fri Jul 5 2019

.UPDATE...
Issued at 657 PM CDT Fri Jul 5 2019

Updated aviation discussion for 00Z TAFs.

&&

.SHORT TERM...(Tonight through Saturday)
Issued at 1225 PM CDT Fri Jul 5 2019

MCV over Missouri will continue to move slowly ESE toward the area,
with a another circulation on 6.19 channel wvapor imagery moving
toward west TN. End result is another day with scattered storms,
some of which may produce downburst winds and isolated instances of
flooding due to very heavy rain. One slow moving more linear area
is just west of our SEMO counties, with more random convection
over west KY. The convection may diminish slightly this evening or
become more consolidated closer to the mid level support moving
into and across the area, with expansion Saturday, especially over
west KY. Used a blend of the HRRR/NAMNest in the near term for
PoPs, and some HRRR incorporation into the going temperature grids.

.LONG TERM...(Saturday night through Friday)
Issued at 1225 PM CDT Fri Jul 5 2019

Models are coming into better agreement in the extended so medium
confidence in the extended.

Most of the models including some of CAMS show a wind shift to the
north by Saturday evening. The ECMWF is a little slower with the
cold front passage and tries to hang up over the area during the max
heating of the day. This would not be out of the question at all for
this time of year and considering how weak the cold front will be...
cant rule that scenario out at this time. For the night time hours
chances of rain drop off considerably and we should have a north
wind across the area with front moving into TN. WPC as even held
fropa back until Sunday. We will have to monitor this closely to
adjust pops accordingly. Will linger post frontal pops into Sunday
but we really start to drop off Sunday night and Monday. The models
have finally dried out the forecast Monday night which previously
had pops. It will also be slightly cooler with slightly lower dew
points but not by very much. We will start to warm back up Wednesday
and Thursday ahead of front with temperatures climbing back to
around 90 and dew points in the 70s. By Wednesday night into
Thursday another cold front will sweep through the area. High
pressure will begin to build in toward the end of next week. This
should cool us back into the upper 80s for highs by Friday. However
at 7 days out I would expect the timing of that last front to
meander with successive model runs.

&&

.AVIATION...
Issued at 657 PM CDT Fri Jul 5 2019

A weak disturbance over eastern Missouri will move east across the
Mississippi River into western Kentucky by Saturday. As it does,
it will continue to generate scattered showers and perhaps some
isolated thunderstorms. Expect a diminishing trend in precipitation
coverage this evening, with possible redevelopment of a compact
area of showers in closer proximity to the disturbance overnight
into Saturday morning. An overall diminishing trend from west to
east is expected by Saturday afternoon and evening. VFR conditions
will be predominant, but may be temporarily reduced with shower
and storm activity. Winds will be light and variable.

&&

.PAH WATCHES/WARNINGS/ADVISORIES...
IL...None.
MO...None.
IN...None.
KY...None.
&&

UPDATE...RJP
AVIATION...RJP

Hazardous Weather Outlook
National Weather Service Paducah KY
810 AM CDT Fri Jul 5 2019

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-061015-
Jefferson-Wayne IL-Edwards-Wabash-Perry IL-Franklin-Hamilton-
White-Jackson-Williamson-Saline-Gallatin-Union-Johnson-Pope-
Hardin-Alexander-Pulaski-Massac-Gibson-Pike-Posey-Vanderburgh-
Warrick-Spencer-Fulton-Hickman-Carlisle-Ballard-McCracken-Graves-
Livingston-Marshall-Calloway-Crittenden-Lyon-Trigg-Caldwell-
Union KY-Webster-Hopkins-Christian-Henderson-Daviess-McLean-
Muhlenberg-Todd-Perry MO-Bollinger-Cape Girardeau-Wayne MO-Carter-
Ripley-Butler-Stoddard-Scott-Mississippi-New Madrid-
810 AM CDT Fri Jul 5 2019

This Hazardous Weather Outlook is for portions of southern
Illinois, southwest Indiana, western Kentucky, and southeast
Missouri.

.DAY ONE...Today and Tonight

The Storm Prediction Center has outlooked all of southeast Missouri
and most of southern Illinois and west Kentucky with a Marginal Risk
of Severe Thunderstorms today. The main hazard is locally damaging
wind gusts.

Otherwise, slow moving thunderstorms today and tonight could
produce torrential rainfall which may lead to brief and localized
flooding. Lightning will also be a concern.

Afternoon heat index values will range from 95 to 105 degrees
outside of rainfall activity.

Details on continued river flooding can be found by referencing
the latest river flood warnings and statements.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A good chance of thunderstorms is forecast Saturday, as a weak
cold front moves toward the region from the north. The daily
chance of thunderstorms will then decrease Sunday, but return
Monday, Wednesday, and Thursday. Locally heavy rainfall and
prolific lightning will be the primary concerns through the
period.

Afternoon heat index readings on Wednesday will top out near 100
over southeast Missouri, southern Illinois and the Purchase Area
of west Kentucky.

Refer to the latest river flood statements and warnings for
details on continued river flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated, but any heavy rainfall
reports are encouraged.

Smith/DRS

Special Weather Statement
National Weather Service Paducah KY
128 PM CDT Fri Jul 5 2019

KYZ011-051900-
Lyon KY-
128 PM CDT Fri Jul 5 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN LYON COUNTY UNTIL
200 PM CDT...

At 128 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles northwest of Energy, and 7 miles northwest of Land Between The
Lakes Area, moving northeast at 15 mph.

Wind gusts up to 50 mph will be possible with this storm.

This storm will remain over mainly rural areas of southwestern Lyon
County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3690 8818 3692 8818 3695 8819 3704 8810
      3693 8797 3689 8807 3687 8814 3687 8816
TIME...MOT...LOC 1828Z 229DEG 15KT 3690 8816

08

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