Alert archive / Illinois / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 122, NWS Paducah, KY

December 11, 20217 counties in Illinois

NWS Paducah, KY issued this severe thunderstorm warning at Dec 11, 2021, 12:08 AM CST for 7 counties in Illinois. It was in force for 32 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: Dec 11, 2021, 12:08 AM CST (06:08 UTC)
Expired: Dec 11, 2021, 12:40 AM CST
In force: 32 min
Issued by: NWS Paducah, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Franklin County, IL, Hamilton County, IL, Jefferson County, IL, Saline County, IL, Wayne County, IL, White County, IL, Williamson County, IL

The radar

The Evansville,IN radar (KVWX), 58 km from the middle of the area, began a volume at 06:10 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Dec 10, 3:07 PM CST	Tornado Watch	SPC	11 hr
Dec 10, 11:03 PM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 6.1 hours before the alert went out and 211 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 119 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 662 m above ground
0-6 km bulk shear: 73 kt
0-1 km storm-relative helicity: 341 m²/s²
0-3 km storm-relative helicity: 357 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

042 
WUUS53 KPAH 110608
SVRPAH
ILC055-065-081-165-191-193-199-110700-
/O.NEW.KPAH.SV.W.0122.211211T0608Z-211211T0700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Paducah KY
Issued by National Weather Service Springfield MO
1208 AM CST Sat Dec 11 2021

The National Weather Service in Paducah has issued a

* Severe Thunderstorm Warning for...
  Western White County in southeastern Illinois...
  Wayne County in south central Illinois...
  Southeastern Jefferson County in south central Illinois...
  Northeastern Williamson County in southern Illinois...
  Northwestern Saline County in southern Illinois...
  Hamilton County in south central Illinois...
  Eastern Franklin County in south central Illinois...

* Until 100 AM CST.

* At 1208 AM CST, severe thunderstorms were located along a line
  extending from near Bluford to 11 miles west of Mcleansboro to near
  Pittsburg, moving northeast at 80 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Marion, Carmi, Fairfield, Mcleansboro, Norris City, Wayne City,
  Bluford, Enfield, Pittsburg, Thompsonville, Dahlgren,
  Jeffersonville, Belle Rive, Hanaford, Sims, Mill Shoals,
  Spillertown, Broughton, Springerton and Mount Erie.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 200 AM CST for south central,
southern and southeastern Illinois. A Tornado Watch also remains in
effect until 500 AM CST for south central, southern and southeastern
Illinois.

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

&&

LAT...LON 3836 8814 3826 8815 3800 8819 3774 8894
      3808 8880 3833 8880 3860 8819 3860 8815
TIME...MOT...LOC 0608Z 238DEG 68KT 3829 8874 3812 8874 3778 8890 

HAIL...0.75IN
WIND...60MPH
 
$$

Rothstein

2 follow-up statements

593 
WWUS53 KPAH 110615
SVSPAH

Severe Weather Statement
National Weather Service Paducah KY
Issued by National Weather Service Springfield MO
1215 AM CST Sat Dec 11 2021

ILC055-065-081-165-191-193-199-110700-
/O.CON.KPAH.SV.W.0122.000000T0000Z-211211T0700Z/
White IL-Wayne IL-Jefferson IL-Williamson IL-Saline IL-Hamilton IL-
Franklin IL-
1215 AM CST Sat Dec 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM CST
FOR WESTERN WHITE...WAYNE...SOUTHEASTERN JEFFERSON...NORTHEASTERN
WILLIAMSON...NORTHWESTERN SALINE...HAMILTON AND SOUTHEASTERN FRANKLIN
COUNTIES...

At 1215 AM CST, severe thunderstorms were located along a line
extending from Wayne City to 7 miles northwest of Mcleansboro to near
Thompsonville, moving northeast at 80 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Carmi, Fairfield, Mcleansboro, Norris City, Wayne City, Bluford,
Enfield, Thompsonville, Dahlgren, Jeffersonville, Belle Rive, Sims,
Mill Shoals, Broughton, Springerton, Mount Erie, Keenes, Golden Gate,
Macedonia and Belle Prairie City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 200 AM CST for south central,
southern and southeastern Illinois. A Tornado Watch also remains in
effect until 500 AM CST for south central, southern and southeastern
Illinois.

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

&&

LAT...LON 3836 8814 3826 8815 3800 8819 3778 8884
      3810 8872 3835 8875 3860 8819 3860 8815
TIME...MOT...LOC 0615Z 238DEG 68KT 3835 8861 3818 8861 3784 8877 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

Rothstein

480 
WWUS53 KPAH 110640
SVSPAH

Severe Weather Statement
National Weather Service Paducah KY
Issued by National Weather Service Springfield MO
1240 AM CST Sat Dec 11 2021

ILC055-065-081-165-191-193-199-110650-
/O.CAN.KPAH.SV.W.0122.000000T0000Z-211211T0700Z/
White IL-Wayne IL-Jefferson IL-Williamson IL-Saline IL-Hamilton IL-
Franklin IL-
1240 AM CST Sat Dec 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN WHITE...WAYNE...
SOUTHEASTERN JEFFERSON...NORTHEASTERN WILLIAMSON...NORTHWESTERN
SALINE...HAMILTON AND SOUTHEASTERN FRANKLIN COUNTIES IS CANCELLED...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning has
been cancelled.  However gusty winds are still possible with these
thunderstorms.

A Tornado Watch remains in effect until 200 AM CST for south central,
southern and southeastern Illinois. A Tornado Watch also remains in
effect until 500 AM CST for south central, southern and southeastern
Illinois.

LAT...LON 3836 8814 3826 8815 3800 8819 3778 8884
      3810 8872 3835 8875 3860 8819 3860 8815
TIME...MOT...LOC 0639Z 238DEG 68KT 3859 8812 3842 8812 3808 8828 

$$

Rothstein

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Paducah, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Dec 10, 11:51 PM CST, 17 minutes earlier.

Area forecast discussion, Dec 10, 11:51 PM CST, 17 minutes before

Area Forecast Discussion
National Weather Service Paducah KY
Issued by National Weather Service Springfield MO
1151 PM CST Fri Dec 10 2021

.UPDATE...
Issued at 630 PM CST Fri Dec 10 2021

Updated aviation discussion.

&&

.SHORT TERM...(Tonight through Saturday night)
Issued at 1250 PM CST Fri Dec 10 2021

Shortwave energy out over the south central Plains will continue
ENE toward the area through sunset, and provide the initial focus
for scattered convection, especially from 4 or 5 pm to 7 p.m. The
short range hi-res guidance continues to be more and more bullish
on scattered severe storms, likely Supercells in some cases.
Looking at what the models are depicting, this event seems to
compare favorably to 2/28/17 and 11/17/13 (Perryville, Crossville
and Brookport). So the concern for significant severe including
strong tornadoes is elevated. The shear and instability are more
than adequate, and in some of the data, slightly stronger.
Anomalously high dew point air is over the area, serving to lower
LCL's coupled with increasing SRH and MLCAPE values over the next
several hours.

The activity will continue tonight, coming in a couple of rounds.
Scattered activity initially into the evening hours, that may be
followed by slightly more organization in a linear fashion toward
midnight and beyond (especially west KY). Outside of the
convection, we may see near Wind Advisory level winds at times,
SSW gusts 30 to 40 mph tonight. Will hold for now on a headline
given it's borderline and with all that's going on.

Precip will be mostly over by Saturday, with decreasing cloud
cover, and steady or falling temperatures (back into the 40s) in
the wake of a strong cold front.

.LONG TERM...(Sunday through Friday)
Issued at 153 PM CST Fri Dec 10 2021

A large 500 mb ridge will encompass much of the central and eastern
US early next week. Dry conditions are expected through Wednesday,
with a slow warming trend. Highs will rise from around 50 on Sunday
to around 70 on Wednesday. The records for Wednesday may be
threatened, depending on how much if any sunshine occurs. The ecmwf
ensemble situational awareness table shows the ensemble mean max
temps for Wed are in the 99th percentile of the 20-year model
climate. The following are the records for Wed...

Record Highs for Wednesday:
PAH.. 71 (1984)
EVV.. 70 (1933)
CGI.. 69 (1984)
POF.. 73 (1933)
MDH.. 74 (1933)

Beyond Wednesday, a cold front will sag southeast across our region
as a 500 mb shortwave rides over the northern part of the ridge.
This cold front will be accompanied by a chance of showers. Some
thunder cannot be ruled out, but the system track will be far to our
north across Minnesota. 500 mb heights will remain anomalously high
even during and after the passage of the shortwave. The weakening
cold front will be weakening and slowing down, possibly stalling
just to our south Friday. There is really not a strong model signal
for significant rainfall, given the persistence of the sub-tropical
ridge over the southern half of the US.

&&

.AVIATION...
Issued at 1145 PM CST Fri Dec 10 2021

Rounds of thunderstorms will continue to move east through the
area ahead of a cold front that will move through late tonight
into early Saturday morning. Winds will continue to be gusty while
turning out of the west and northwest behind the front. Expect VFR
conditions behind the front.

&&

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

AVIATION...WFO SGF

Hazardous weather outlook, Dec 10, 6:36 PM CST, 5 hours 32 minutes before

Hazardous Weather Outlook
National Weather Service Paducah KY
636 PM CST Fri Dec 10 2021

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-120045-
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-
636 PM CST Fri Dec 10 2021

...Organized Outbreak of Severe Thunderstorms and Tornadoes
Tonight...

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

.DAY ONE...Tonight

Tornado Watches are in effect for western Kentucky, southeast
Missouri, southern Illinois, and southwest Indiana. Thunderstorms
are expected to increase in coverage and intensity through this
evening. The main hazards will be damaging winds and tornadoes,
including the potential for a couple of strong, destructive
tornadoes.

Numerous storms will continue through the overnight hours across
southwest Indiana and the rest of western Kentucky. Conditions will
be favorable for damaging winds and tornadoes along a broken line of
storms, and a couple long-track tornadoes are possible.

Outside of thunderstorms, strong gradient non-thunderstorm wind
gusts of 30 to 40 mph are possible into early Saturday morning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is requested.

MY/CN

In the hours before

Local storm report, Dec 10, 8:54 PM CST, 3 hours 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
854 PM CST FRI DEC 10 2021

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

0839 PM     TORNADO          1 SW CENTRAL CITY       37.28N 87.14W
12/10/2021                   MUHLENBERG         KY   STORM CHASER

            DEBRIS FROM HOMES AND BILLBOARDS ALONG THE
            WEST KENTUCKY PARKWAY JUST WEST OF CENTRAL
            CITY.

&&

DWS

Local storm report, Dec 10, 9:04 PM CST, 3 hours 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
904 PM CST FRI DEC 10 2021

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

0855 PM     HAIL             4 S HICKMAN             36.51N 89.19W
12/10/2021  E1.75 INCH       FULTON             KY   TRAINED SPOTTER

&&

GM

Local storm report, Dec 10, 9:06 PM CST, 3 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
906 PM CST FRI DEC 10 2021

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

0901 PM     TORNADO          CAYCE                   36.56N 89.04W
12/10/2021                   FULTON             KY   AMATEUR RADIO

            DAMAGE REPORTED IN CAYCE TO A CAFE AND THE
            FIRE DEPARTMENT.

&&

DWS

Local storm report, Dec 10, 9:10 PM CST, 2 hours 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
910 PM CST FRI DEC 10 2021

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

0845 PM     TORNADO          CENTRAL CITY            37.30N 87.13W
12/10/2021                   MUHLENBERG         KY   TRAINED SPOTTER

            DAMAGE TO HARDWARE STORE ON WEST EVERLY
            BROS. BLVD.

&&

ML

Local storm report, Dec 10, 9:18 PM CST, 2 hours 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
918 PM CST FRI DEC 10 2021

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

0915 PM     TSTM WND GST     3 WNW SCOTT CITY        37.23N 89.58W
12/10/2021  M58 MPH          SCOTT              MO   ASOS

            ASOS STATION KCGI CAPE GIRARDEAU MO.

&&

DWS

Local storm report, Dec 10, 9:49 PM CST, 2 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
949 PM CST FRI DEC 10 2021

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

0927 PM     TORNADO          MAYFIELD                36.74N 88.64W
12/10/2021                   GRAVES             KY   BROADCAST MEDIA

            MAJOR DAMAGE REPORTED IN MAYFIELD. NO
            FURTHER DETAILS AVAILABLE AT THIS TIME.

&&

DWS

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 10, 9:21 PM CST	Severe Thunderstorm Warning	PAH	Alexander, Johnson, Pulaski, Union	39 min
Dec 10, 9:49 PM CST	Severe Thunderstorm Warning	PAH	Johnson, Massac, Pope, Pulaski	41 min
Dec 10, 10:30 PM CST	Tornado Warning	PAH	Massac, Pope	45 min
Dec 10, 11:33 PM CST	Severe Thunderstorm Warning	PAH	Franklin, Jackson, Jefferson, Perry, Union, Williamson	42 min
Dec 11, 12:37 AM CST	Special Weather Statement	PAH	Edwards, Wabash, White	38 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2021 Every severe thunderstorm warning 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.