Alert archive / Illinois / Tornado Warnings in 2011

Tornado Warning 148, NWS Paducah, KY

May 25, 2011Jackson County, Perry County, Illinois

NWS Paducah, KY issued this tornado warning at May 25, 2011, 6:04 PM CDT for Jackson County, Perry County, Illinois. It was in force for 41 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 25, 2011, 6:04 PM CDT (23:04 UTC)
Expired: May 25, 2011, 6:45 PM CDT
In force: 41 min
Issued by: NWS Paducah, KY
Area: Storm-based polygon

Counties Jackson County, IL, Perry County, IL

The radar

The Paducah radar (KPAH), 106 km from the middle of the area, began a volume at 23:04 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.

What was reported inside it

Time	Report	Where	Remark
May 25, 6:26 PM CDT	TSTM WND GST 57	2 S Du Quoin, IL
May 25, 6:38 PM CDT	FUNNEL CLOUD	De Soto, IL	FUNNEL CLOUD OVER THE TOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
May 25, 11:09 AM CDT	Tornado Watch PDS	SPC	10 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.1 hours before the alert went out and 260 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: 1832 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 561 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 253 m²/s²
0-3 km storm-relative helicity: 222 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 10.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

993 
WFUS53 KPAH 252304
TORPAH
ILC077-145-252345-
/O.NEW.KPAH.TO.W.0148.110525T2304Z-110525T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
604 PM CDT WED MAY 25 2011

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* TORNADO WARNING FOR...
  PERRY COUNTY IN SOUTH CENTRAL ILLINOIS...
  JACKSON COUNTY IN SOUTHERN ILLINOIS...

* UNTIL 645 PM CDT.

* AT 559 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A 
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING ISOLATED TORNADOES 
EXTENDING FROM SPARTA ILLINOIS TO PERRYVILLE MISSOURI...MOVING EAST 
NORTHEAST AT 60 MPH.

THE BEST CIRCULATION WAS LOCATED NEAR ROCKWOOD MOVING TOWARD 
CAMPBELL HILL IN ILLINOIS.

* LOCATIONS IN THE WARNING INCLUDE...
  WILLISVILLE...
  AVA...
  PINCKNEYVILLE...
  ELKVILLE...
  TAMAROA...
  DU QUOIN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS OF 70 TO 80 
MPH.

&&

LAT...LON 3821 8916 3814 8915 3810 8912 3799 8915
      3796 8918 3794 8915 3761 8915 3761 8945
      3757 8948 3757 8952 3769 8952 3774 8966
      3782 8970 3784 8966 3795 8961 3822 8959
TIME...MOT...LOC 2302Z 240DEG 53KT 3791 8961

$$

1 follow-up statement

975 
WWUS53 KPAH 252322
SVSPAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
622 PM CDT WED MAY 25 2011

ILC077-145-252345-
/O.CON.KPAH.TO.W.0148.000000T0000Z-110525T2345Z/
JACKSON IL-PERRY IL-
622 PM CDT WED MAY 25 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR PERRY
COUNTY IN SOUTH CENTRAL ILLINOIS...AND JACKSON COUNTY IN SOUTHERN
ILLINOIS...

AT 618 PM CDT...TRAINED WEATHER SPOTTERS REPORTED ROTATION NEAR 
PINCKNEYVILLE. THIS ROTATION IS PART OF A LINE OF STORMS LOCATED 
ALONG A LINE EXTENDING FROM 11 MILES NORTHWEST OF PINCKNEYVILLE TO 3 
MILES WEST OF GORHAM...MOVING NORTHEAST AT 60 MPH.

ANOTHER CIRCULATION WAS LOCATED IN NORTHERN JACKSON COUNTY NEAR 
ORAVILLE...MOVING TOWARD DUQUOIN.

LOCATIONS IN THE WARNING INCLUDE CEDAR LAKE AREA...MAKANDA...
MURPHYSBORO...VERGENNES...CARBONDALE...DE SOTO...ST. JOHNS...
TAMAROA...DU QUOIN...DOWELL AND ELKVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS LINE OF STORMS IS CAPABLE OF 
PRODUCING QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS OF 
70 TO 80 MPH.

&&

LAT...LON 3821 8916 3814 8915 3810 8912 3799 8915
      3796 8918 3794 8915 3761 8915 3761 8945
      3757 8948 3757 8952 3769 8952 3774 8966
      3782 8970 3784 8966 3795 8961 3822 8959
TIME...MOT...LOC 2321Z 240DEG 53KT 3823 8945 3774 8949

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 4:11 AM CDT	Lake Wind Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	16 hr
May 25, 11:51 AM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash, White	39 min
May 25, 5:05 PM CDT	Tornado Warning	PAH	Perry	25 min
May 25, 5:27 PM CDT	Tornado Warning	PAH	Jefferson	48 min
May 25, 5:54 PM CDT	Tornado Warning	PAH	Johnson, Pope	36 min
May 25, 6:05 PM CDT	Tornado Warning	PAH	Gallatin, Pope, Saline, Williamson	25 min
May 25, 6:08 PM CDT	Tornado Warning	PAH	Alexander	37 min
May 25, 6:18 PM CDT	Tornado Warning	PAH	Union	27 min
May 25, 6:25 PM CDT	Tornado Warning	PAH	Gallatin, Hamilton, Saline, White	50 min
May 25, 6:35 PM CDT	Tornado Warning	PAH	Franklin, Jefferson, Williamson	40 min
May 25, 6:41 PM CDT	Tornado Warning	PAH	Jackson, Perry	22 min
May 25, 6:43 PM CDT	Tornado Warning	PAH	Alexander, Johnson, Massac, Pulaski, Union	32 min
May 25, 6:57 PM CDT	Tornado Warning	PAH	White	33 min
May 25, 6:59 PM CDT	Tornado Warning	PAH	Hamilton, Saline, Wayne	46 min

Nearby

Tornado Warnings in Illinois, 2011 Every tornado warning in 2011 Tornadoes in 2011

Sources

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