Alert archive / Kentucky / Special Weather Statements in 2021

Special Weather Statement, NWS Paducah, KY

July 31, 2021Ballard County, Carlisle County, McCracken County, Kentucky

NWS Paducah, KY issued this special weather statement at Jul 31, 2021, 7:21 PM CDT for Ballard County, Carlisle County, McCracken County, Kentucky. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 31, 2021, 7:21 PM CDT (00:21 UTC)
Expired
Jul 31, 2021, 8:00 PM CDT
In force
39 min
Issued by
NWS Paducah, KY

Counties Ballard County, KY, Carlisle County, KY, McCracken County, KY

The radar

The Paducah radar (KPAH), 29 km from the middle of the area, began a volume at 00:23 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.4 hours before the alert went out and 247 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2021-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1106 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2021-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1106 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1447 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
251 m²/s²
Significant tornado parameter
0.3
Supercell composite
5.3

Open this sounding in Storm Lab

The text

As transmitted.

818 
WWUS83 KPAH 010021
SPSPAH

Special Weather Statement
National Weather Service Paducah KY
721 PM CDT Sat Jul 31 2021
 
ILZ092>094-KYZ003>007-MOZ111-112-010100-
Massac IL-Alexander IL-Pulaski IL-Carlisle KY-McCracken KY-
Ballard KY-Graves KY-Livingston KY-Scott MO-Mississippi MO-
721 PM CDT Sat Jul 31 2021

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL PULASKI...SOUTHEASTERN
MASSAC...EASTERN ALEXANDER...SOUTHWESTERN LIVINGSTON...CARLISLE...
MCCRACKEN...BALLARD...NORTHWESTERN GRAVES...NORTHEASTERN MISSISSIPPI
AND EAST CENTRAL SCOTT COUNTIES UNTIL 800 PM CDT...

At 720 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles northwest of Tamms to 7 miles southwest
of Karnak to Mound City to near Bertrand. Movement was east at 50
mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Paducah, Metropolis, Charleston, Cairo, La Center, Bardwell,
Wickliffe, Reidland, Lone Oak, Brookport, Mounds, Barlow, Mound City,
Wyatt, Barkley Regional Airport, Lovelaceville, West Paducah,
Ledbetter, Ullin and Kevil.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Paducah.

&&

LAT...LON 3696 8944 3711 8926 3722 8912 3733 8943
      3733 8939 3710 8849 3696 8851 3677 8885
TIME...MOT...LOC 0020Z 292DEG 44KT 3732 8938 3720 8904 3709 8918 3695
8940

$$

SMITH

The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 31, 8:29 PM CDTSpecial Weather StatementPAHCalloway46 min
Jul 31, 7:10 PM CDTAreal Flood AdvisoryPAHCarter, Wayne66 min
Jul 31, 7:52 PM CDTSpecial Weather StatementPAHRipley38 min
Aug 1, 2:34 AM CDTAreal Flood AdvisoryPAHButler2 hr
Aug 1, 3:27 AM CDTAreal Flood AdvisoryPAHRipley93 min

Nearby

Special Weather Statements in Kentucky, 2021Every special weather statement in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.