Alert archive / Illinois / Tornado Warnings in 2011

Tornado Warning 154, NWS Paducah, KY

May 25, 20114 counties in Illinois

NWS Paducah, KY issued this tornado warning at May 25, 2011, 6:25 PM CDT for 4 counties in Illinois. It was in force for 50 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, 6:25 PM CDT (23:25 UTC)
Expired: May 25, 2011, 7:15 PM CDT
In force: 50 min
Issued by: NWS Paducah, KY
Area: Storm-based polygon

Counties Gallatin County, IL, Hamilton County, IL, Saline County, IL, White County, IL

The radar

The Evansville,IN radar (KVWX), 74 km from the middle of the area, began a volume at 23:27 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, 6:28 PM CDT	HAIL 0.75	Harrisburg, IL	DIME SIZE HAIL REPORTED.
May 25, 6:56 PM CDT	HAIL 0.88	14 S Mcleansboro, IL

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, 11.4 hours before the alert went out and 251 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.

874 
WFUS53 KPAH 252325
TORPAH
ILC059-065-165-193-260015-
/O.NEW.KPAH.TO.W.0154.110525T2325Z-110526T0015Z/

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

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN HAMILTON COUNTY IN SOUTH CENTRAL ILLINOIS...
  SOUTHWESTERN WHITE COUNTY IN SOUTHEAST ILLINOIS...
  NORTHWESTERN GALLATIN COUNTY IN SOUTHERN ILLINOIS...
  SALINE COUNTY IN SOUTHERN ILLINOIS...

* UNTIL 715 PM CDT.

* AT 622 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR CARRIERS
  MILLS...MOVING NORTHEAST AT 45 MPH.

  THIS STORM IS PRODUCING VERY STRONG ROTATION...AND A TORNADO IS EITHER
  IMMINENT OR OCCURRING. TAKE COVER NOW IF YOU LIVE IN HARRISBURG.

* LOCATIONS IN THE WARNING INCLUDE...
  CARRIERS MILLS...
  HARRISBURG...
  ELDORADO...
  NORRIS CITY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

NOW IS THE TIME TO IMPLEMENT YOUR TORNADO PLAN OF ACTION. SEEK
SHELTER INDOORS IN A BASEMENT...OR IN AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A HOME OR BUILDING.

ABOUT HALF OF TORNADO DEATHS OCCUR IN MOBILE HOMES. IF YOU ARE IN ONE
NOW...MOVE IMMEDIATELY TO A MORE SUBSTANTIAL SHELTER SUCH AS A NEARBY
HOME.

&&

LAT...LON 3811 8841 3799 8817 3762 8849 3764 8870
TIME...MOT...LOC 2324Z 214DEG 40KT 3769 8859

$$

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, 6:04 PM CDT	Tornado Warning	PAH	Jackson, Perry	41 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, 6:35 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.