Severe Thunderstorm Warning 104, NWS Paducah, KY

467 
WWUS53 KPAH 060124
SVSPAH

Severe Weather Statement
National Weather Service Paducah KY
724 PM CST Sun Dec 5 2021

KYC007-039-060133-
/O.CAN.KPAH.SV.W.0104.000000T0000Z-211206T0145Z/
Carlisle KY-Ballard KY-
724 PM CST Sun Dec 5 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CARLISLE AND
SOUTHEASTERN BALLARD COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area.

LAT...LON 3687 8881 3695 8881 3708 8887 3725 8860
      3716 8849 3705 8849 3702 8848 3695 8849
TIME...MOT...LOC 0123Z 242DEG 51KT 3706 8882 3698 8878 3690 8879 

$$

ILC127-KYC083-139-145-060145-
/O.CON.KPAH.SV.W.0104.000000T0000Z-211206T0145Z/
Massac IL-Livingston KY-McCracken KY-Graves KY-
724 PM CST Sun Dec 5 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CST
FOR SOUTHEASTERN MASSAC...SOUTHWESTERN LIVINGSTON...MCCRACKEN AND
NORTHWESTERN GRAVES COUNTIES...

At 723 PM CST, severe thunderstorms were located along a line
extending from near Barkley Regional Airport to near Lovelaceville,
moving northeast at 60 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Paducah, Metropolis and Lone Oak around 730 PM CST.

Other locations in the path of these severe thunderstorms include
Brookport, Reidland and Ledbetter.

This includes the following highways...
 Interstate 24 in Kentucky between Mile Markers 1 and 17.
 Interstate 24 in Illinois between Mile Markers 35 and 38.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3687 8881 3695 8881 3708 8887 3725 8860
      3716 8849 3705 8849 3702 8848 3695 8849
TIME...MOT...LOC 0123Z 242DEG 51KT 3706 8882 3698 8878 3690 8879 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

08

210 
WWUS53 KPAH 060134
SVSPAH

Severe Weather Statement
National Weather Service Paducah KY
734 PM CST Sun Dec 5 2021

ILC127-KYC083-139-145-060144-
/O.CAN.KPAH.SV.W.0104.000000T0000Z-211206T0145Z/
Massac IL-Livingston KY-McCracken KY-Graves KY-
734 PM CST Sun Dec 5 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MASSAC...
SOUTHWESTERN LIVINGSTON...MCCRACKEN AND NORTHWESTERN GRAVES COUNTIES
IS CANCELLED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled.

LAT...LON 3687 8881 3695 8881 3708 8887 3725 8860
      3716 8849 3705 8849 3702 8848 3695 8849
TIME...MOT...LOC 0131Z 242DEG 51KT 3711 8869 3703 8865 3695 8866 

$$

08

Area Forecast Discussion
National Weather Service Paducah KY
500 PM CST Sun Dec 5 2021

.UPDATE...
Updated aviation section for 00z taf issuance

&&

.SHORT TERM...(Tonight through Tuesday)
Issued at 220 PM CST Sun Dec 5 2021

Our warm advection zone has some thunder in scattered convection,
mainly within the best ribbon of an isodrosothermal nose of 60F
surface dew points, which is coincident with a 325-330K theta-e
ridge/moisture flux convergence. Anticipate this scattered warm
sector convection will remain possible into the early evening
hours, though there could be a relative lull late this afternoon
before picking up again early this evening.

After that is when we see our severe weather parameters try to
come together, with similar signal magnitude as the past couple
days. Namely 30-40 kts of bulk shear in the lower 3 KM between
00z-06z, and 200-300 units of helicity within an area of greater
than 300 J/KG MLCAPE as the cold front makes its approach. This
keeps with little change our damaging wind/isolated tornado threat
going thru the evening hours. Shear values increase as
instability wanes overnight, and with the upper flow
evolving/becoming parallel to the front moving thru, this should
transition the svr threat to a heavy rain/localized flooding
mode, which is also little changed from previous forecasts save
for maybe slightly lower overall storm average qpf. 1 plus inch is
a good bet basically along/south of the Ohio river, with maybe
locally pushing the mid 1 inch range in our far southeast.

Thunder should diminish/be gone with fropa, which effectively for
our FA, is by 12Z, though a shower may linger into the early
morning in our far southeast, ending by 15Z. Minor collaborative
adjustments may be necessary there/but all in all, it's been a
pretty consistent signal/forecast and timing.

Much colder air is incoming behind the front, with Monday highs
largely in the 40s and likely not even reaching 40 on Tuesday.

.LONG TERM...(Tuesday night through Sunday)
Issued at 220 PM CST Sun Dec 5 2021

A weak upper level wave will move over our region Tuesday night.
Models had been trending colder and drier with this feature the last
couple of days, and now it looks like very small chances of light
snow or flurries will cover it. Went with slight chances by late
Tuesday night for all but the Ozark foothills in southeast Missouri.

Dry conditions will return for Wednesday as temperatures moderate
back up to around 5 degree below normal.  Winds will shift to the
south Wednesday night and Thursday with the approach of a weak cold
front.  This will result in warmer conditions, with lows near normal
Wednesday night and 5 to 8 degrees above normal Thursday.  The cold
front will move through the middle Mississippi and lower Ohio
valleys Thursday afternoon and Thursday evening, which may bring
some light rain to all but our far west and northwest counties.

As we get into late Thursday night and Friday, models vary in
whether or not the southwest half of the cold front will lift back
north as a warm front with the approach of a surface low over the
Central Plains.  Model blends lean toward the warm front solution,
and this increases chances of rain through Friday.

By Friday night into Saturday, the low will be moving into the Great
Lakes region, dragging the associated cold front through our area by
early Saturday.  Widespread rain is likely along and well out ahead
of the front, with our highest chances through the day Saturday.
Chances will taper off west to east late Saturday into Saturday
evening.  Colder air will be filtering in behind the front, and the
NBM lingers small chances of rain to a rain/snow mix late Saturday
night, and chances of light rain Sunday.  Not very confident any
precipitation will linger for that time period, but will leave the
slight chances in for now.

&&

.AVIATION...
Issued at 500 PM CST Sun Dec 5 2021

A cold front will move southeast across the taf sites late tonight.
Ahead of the front, expect a gradual increase in showers and
thunderstorms. Winds will be gusty from the south. Widespread mvfr
cigs are expected to persist along and ahead of the front. Some ifr
conditions are expected in thunderstorms, and tafs will be amended
as the timing and location of storms becomes more evident.

As the front passes, winds will shift into the northwest and remain
gusty.

Mainly clear skies are expected on Monday as high pressure builds in
behind the front. Winds will remain gusty from the northwest.

&&

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

&&

Aviation...MY

Hazardous Weather Outlook
National Weather Service Paducah KY
240 PM CST Sun Dec 5 2021

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-061100-
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-
240 PM CST Sun Dec 5 2021

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

.DAY ONE...This Afternoon and Tonight

A line of thunderstorms will develop in advance of an approaching
cold front tonight. Some storms may become severe, with damaging
winds and possibly a tornado the main severe storm hazards. A
slight risk of severe storms runs along and south of a Poplar
Bluff, Missouri, to Cape Girardeau, to Evansville, Indiana line. A
marginal risk exists elsewhere. Heavy rain could also cause
localized flooding.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested tonight.

Special Weather Statement
National Weather Service Paducah KY
657 PM CST Sun Dec 5 2021

KYZ002>004-MOZ112-060130-
Carlisle KY-Ballard KY-Hickman KY-Mississippi MO-
657 PM CST Sun Dec 5 2021

...Strong thunderstorms will impact portions of northwestern Hickman,
Carlisle, southeastern Ballard and east central Mississippi Counties
through 730 PM CST...

At 656 PM CST, Doppler radar was tracking strong thunderstorms along
a line extending from near Wyatt to near Towosahgy State Historic
Site. Movement was northeast at 55 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Strong thunderstorms will be near...
  Wickliffe around 705 PM CST.
  Bardwell around 710 PM CST.

Other locations in the path of these storms include Lovelaceville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3670 8924 3688 8925 3709 8888 3695 8881
      3678 8881
TIME...MOT...LOC 0056Z 246DEG 47KT 3686 8923 3673 8923

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

08