Alert archive / Illinois / Tornado Warnings in 2006

Tornado Warning 13, NWS St. Louis, MO

March 11, 2006Pike County, Illinois

NWS St. Louis, MO issued this tornado warning at Mar 11, 2006, 5:13 PM CST for Pike County, Illinois. It was in force for 32 min. 3 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: Mar 11, 2006, 5:13 PM CST (23:13 UTC)
Expired: Mar 11, 2006, 5:45 PM CST
In force: 32 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

County Pike County, IL

The radar

The St Louis radar (KLSX), 101 km from the middle of the area, began a volume at 23:15 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
Mar 11, 5:15 PM CST	HAIL 1.75	Pittsfield, IL
Mar 11, 5:25 PM CST	HAIL 0.75	Pittsfield, IL
Mar 11, 5:25 PM CST	HAIL 0.88	Pittsfield, 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
Mar 11, 2:22 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.2 hours before the alert went out and 212 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1574 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 374 m²/s²
0-3 km storm-relative helicity: 384 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLSX 112313
TORLSX
ILC149-112345-
/O.NEW.KLSX.TO.W.0013.060311T2313Z-060311T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
513 PM CST SAT MAR 11 2006

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  PIKE COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 545 PM CST

* AT 511 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION OVER PITTSFIELD...MOVING
  NORTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  GRIGGSVILLE...

THIS TORNADO WARNING IS AN UPGRADE TO THE SEVERE THUNDERSTORM WARNING
PREVIOUSLY ISSUED FOR THE WARNED AREA.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3959 9119 3942 9097 3942 9063 3984 9060
      3963 9121

$$

CARNEY

3 follow-up statements

000 
WWUS53 KLSX 112323
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
521 PM CST SAT MAR 11 2006

ILC149-112345-
/O.CON.KLSX.TO.W.0013.000000T0000Z-060311T2345Z/
PIKE IL-
521 PM CST SAT MAR 11 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CST FOR PIKE
COUNTY...

AT 516 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER 
PITTSFIELD...MOVING NORTHEAST AT 30 MPH.

LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...
MILTON...DETROIT...GRIGGSVILLE AND VALLEY CITY.

IN ADDITION TO THE TORNADO...THIS STORM WAS IS CAPABLE OF PRODUCING 
GOLFBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

AN ADDITIONAL SEVERE THUNDERSTORM WAS REPORTED ON RADAR OVER SUMMER 
HILL. THIS STORM WAS ALSO MOVING NORTHEAST AT ABOUT 30 MPH.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3959 9119 3942 9097 3942 9063 3984 9060
      3963 9121

$$

CARNEY

000 
WWUS53 KLSX 112337
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
537 PM CST SAT MAR 11 2006

ILC149-112345-
/O.CON.KLSX.TO.W.0013.000000T0000Z-060311T2345Z/
PIKE IL-
537 PM CST SAT MAR 11 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CST FOR PIKE
COUNTY...

AT 535 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER 
DETROIT...MOVING NORTHEAST AT 25 MPH.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS 
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY 
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU 
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE 
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

LAT...LON 3959 9119 3942 9097 3942 9063 3984 9060
      3963 9121

$$

CARNEY

000 
WWUS53 KLSX 112346
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
546 PM CST SAT MAR 11 2006

ILC149-112356-
/O.EXP.KLSX.TO.W.0013.000000T0000Z-060311T2345Z/
PIKE IL-
546 PM CST SAT MAR 11 2006

...THE TORNADO WARNING FOR PIKE COUNTY HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE COUNTY.

ADDITIONAL STRONG THUNDERSTORMS ARE POSSIBLE...AND A TORNADO WATCH 
REMAINS IN EFFECT UNTIL 1000 PM CST.

LAT...LON 3959 9119 3942 9097 3942 9063 3984 9060
      3963 9121

$$

CARNEY

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 11, 2:26 AM CST	Severe Thunderstorm Warning	LSX	Randolph	64 min
Mar 11, 3:29 AM CST	Severe Thunderstorm Warning	LSX	Randolph, Saint Clair	28 min
Mar 11, 3:50 AM CST	Severe Thunderstorm Warning	LSX	Washington	40 min
Mar 11, 2:56 PM CST	Severe Thunderstorm Warning	LSX	Adams	42 min
Mar 11, 3:25 PM CST	Severe Thunderstorm Warning	LSX	Brown	26 min
Mar 11, 3:50 PM CST	Severe Thunderstorm Warning	LSX	Adams	40 min
Mar 11, 3:56 PM CST	Severe Thunderstorm Warning	LSX	Pike	34 min
Mar 11, 4:16 PM CST	Severe Thunderstorm Warning	LSX	Brown	29 min
Mar 11, 4:34 PM CST	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	41 min
Mar 11, 5:05 PM CST	Severe Thunderstorm Warning	LSX	Pike	25 min
Mar 11, 5:12 PM CST	Severe Thunderstorm Warning	LSX	Adams	32 min
Mar 11, 5:16 PM CST	Severe Thunderstorm Warning	LSX	Brown	29 min

Nearby

Tornado Warnings in Illinois, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.