Alert archive / Illinois / Tornado Warnings in 2010

Tornado Warning 67, NWS St. Louis, MO

October 26, 20104 counties in Illinois; Lincoln County, Pike County, Missouri

NWS St. Louis, MO issued this tornado warning at Oct 26, 2010, 3:34 AM CDT for 4 counties in Illinois; Lincoln County, Pike County, Missouri. It was in force for 41 min. 1 report 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: Oct 26, 2010, 3:34 AM CDT (08:34 UTC)
Expired: Oct 26, 2010, 4:15 AM CDT
In force: 41 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon

Counties Calhoun County, IL, Greene County, IL, Jersey County, IL, Pike County, IL, Lincoln County, MO, Pike County, MO

The radar

The St Louis radar (KLSX), 60 km from the middle of the area, began a volume at 08:37 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
Oct 26, 4:10 AM CDT	TSTM WND DMG	Carrollton, IL	TREE DOWN ON HIGHWAY 108 BETWEEN 7TH AND 8TH STREETS.

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
Oct 25, 10:03 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 8.6 hours before the alert went out and 265 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: 158 J/kg
Mixed-layer CIN: -132 J/kg
Mixed-layer LCL: 857 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 357 m²/s²
0-3 km storm-relative helicity: 405 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

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

529 
WFUS53 KLSX 260834
TORLSX
ILC013-061-083-149-MOC113-163-260915-
/O.NEW.KLSX.TO.W.0067.101026T0834Z-101026T0915Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
334 AM CDT TUE OCT 26 2010

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  CALHOUN COUNTY IN SOUTHWEST ILLINOIS...
  GREENE COUNTY IN SOUTHWEST ILLINOIS...
  JERSEY COUNTY IN SOUTHWEST ILLINOIS...
  SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL ILLINOIS...
  EASTERN LINCOLN COUNTY IN EAST CENTRAL MISSOURI...
  EAST CENTRAL PIKE COUNTY IN NORTHEAST MISSOURI...

* UNTIL 415 AM CDT

* AT 332 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE SQUALL LINE CAPABLE OF PRODUCING BRIEF RAIN-WRAPPED
  TORNADOES IN ADDITION TO WIDESPREAD STRAIGHT LINE WIND DAMAGE.
  THESE DANGEROUS STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
  PLEASANT HILL TO ELSBERRY TO MOSCOW MILLS...AND MOVING NORTHEAST AT
  60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WHITE HALL...JERSEYVILLE...BELLEVIEW...WINFIELD...HARDIN...
  ROODHOUSE...CARROLLTON...OLD KANE...ATHENSVILLE...GREENFIELD...
  KEMPER...MOZIER...MARTINSBURG...NEBO...HAMBURG...INDEPENDENCE...OLD
  MONROE...FOLEY...TIME AND KAMPSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.

&&

LAT...LON 3958 9058 3953 9058 3953 9016 3908 9015
      3892 9077 3892 9079 3891 9080 3889 9090
      3889 9094 3917 9088 3947 9097 3966 9062
TIME...MOT...LOC 0834Z 232DEG 54KT 3944 9085 3923 9078
          3892 9088

$$

BRITT

2 follow-up statements

003 
WWUS53 KLSX 260859
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
359 AM CDT TUE OCT 26 2010

MOC113-163-260906-
/O.CAN.KLSX.TO.W.0067.000000T0000Z-101026T0915Z/
LINCOLN MO-PIKE MO-
359 AM CDT TUE OCT 26 2010

...THE TORNADO WARNING FOR EASTERN LINCOLN COUNTY IN EAST CENTRAL
MISSOURI...AND EAST CENTRAL PIKE COUNTY IN NORTHEAST MISSOURI IS
CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE 
WARNED AREA.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.

LAT...LON 3966 9062 3958 9058 3953 9058 3953 9016
      3909 9015 3908 9015 3895 9068 3904 9071
      3911 9069 3914 9072 3959 9072
TIME...MOT...LOC 0856Z 232DEG 54KT 3953 9048 3912 9058

$$

ILC013-061-083-149-260915-
/O.CON.KLSX.TO.W.0067.000000T0000Z-101026T0915Z/
JERSEY IL-CALHOUN IL-GREENE IL-PIKE IL-
359 AM CDT TUE OCT 26 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR GREENE...CALHOUN AND
JERSEY COUNTIES IN SOUTHWEST ILLINOIS...AND SOUTHEASTERN PIKE COUNTY
IN WEST CENTRAL ILLINOIS UNTIL 415 AM CDT...

AT 351 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO.  STRONG 
ROTATION WAS NOTED ALONG THIS LINE 5 MILES NORTHWEST OF WHITE HALL 
AND ALSO 5 MILES SOUTH OF NUTWOOD.  THIS LINE IS MOVING NORTHEAST AT 
60 MPH.  STRONG STRAIGHT LINE WINDS IN EXCESS OF 60 MPH IS ALSO 
POSSIBLE WITH THIS LINE.

LOCATIONS IMPACTED INCLUDE...
  WHITE HALL...JERSEYVILLE...ROODHOUSE...CARROLLTON...OLD KANE...
  ATHENSVILLE...GREENFIELD...KEMPER...PATTERSON...WALKERSVILLE...
  FIELDON...WOODY...OTTERVILLE...BARROW...MCCLUSKY...BELLTOWN...
  BERDAN...KANE...WRIGHTS AND FIDELITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.

&&

LAT...LON 3966 9062 3958 9058 3953 9058 3953 9016
      3909 9015 3908 9015 3895 9068 3904 9071
      3911 9069 3914 9072 3959 9072
TIME...MOT...LOC 0856Z 232DEG 54KT 3953 9048 3912 9058

$$

BRITT

118 
WWUS53 KLSX 260912
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
412 AM CDT TUE OCT 26 2010

ILC013-061-083-149-260920-
/O.EXP.KLSX.TO.W.0067.000000T0000Z-101026T0915Z/
JERSEY IL-CALHOUN IL-GREENE IL-PIKE IL-
412 AM CDT TUE OCT 26 2010

...THE TORNADO WARNING FOR GREENE...CALHOUN AND JERSEY COUNTIES IN
SOUTHWEST ILLINOIS...AND SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL
ILLINOIS WILL EXPIRE AT 415 AM CDT...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A NEW SEVERE THUNDERSTORM WARNING HAS BEEN ISSUED 
FOR EASTERN GREENE AND JERSEY COUNTY UNTIL 515 AM CDT.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 600 AM CDT.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.

LAT...LON 3966 9062 3958 9058 3953 9058 3953 9016
      3909 9015 3908 9015 3895 9068 3904 9071
      3911 9069 3914 9072 3959 9072
TIME...MOT...LOC 0910Z 232DEG 54KT 3966 9026 3925 9037

$$

BRITT

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 26, 12:56 AM CDT	Severe Thunderstorm Warning	LSX	Adams	31 min
Oct 26, 1:13 AM CDT	Severe Thunderstorm Warning	LSX	Adams, Pike	47 min
Oct 26, 1:19 AM CDT	Tornado Warning	LSX	Adams, Brown, Pike	41 min
Oct 26, 1:39 AM CDT	Severe Thunderstorm Warning	LSX	Adams	51 min
Oct 26, 1:56 AM CDT	Tornado Warning	LSX	Brown	19 min
Oct 26, 3:34 AM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Jersey	41 min
Oct 26, 4:09 AM CDT	Severe Thunderstorm Warning	LSX	Greene, Jersey, Macoupin, Madison, Monroe, Randolph and 1 more	66 min
Oct 26, 4:33 AM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Macoupin, Madison, Marion and 2 more	57 min
Oct 26, 4:44 AM CDT	Tornado Warning	LSX	Saint Clair	23 min
Oct 26, 5:15 AM CDT	Tornado Warning	LSX	Bond, Clinton, Fayette, Montgomery	30 min
Oct 26, 5:19 AM CDT	Severe Thunderstorm Warning	LSX	Randolph	23 min
Oct 26, 5:30 AM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Marion, Montgomery, Washington	45 min
Oct 26, 5:54 AM CDT	Tornado Warning	LSX	Fayette	21 min
Oct 26, 6:03 AM CDT	Tornado Warning	LSX	Marion	17 min
Oct 25, 11:30 PM CDT	Severe Thunderstorm Warning	LSX	Marion, Ralls	30 min
Oct 25, 11:45 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Monroe	45 min
Oct 26, 12:08 AM CDT	Severe Thunderstorm Warning	LSX	Knox, Lewis, Marion, Monroe, Ralls, Shelby	52 min
Oct 26, 12:34 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Lincoln, Montgomery, Pike, Ralls	41 min
Oct 26, 1:04 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Monroe	41 min
Oct 26, 1:28 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Callaway, Cole, Moniteau, Osage	47 min
Oct 26, 2:10 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway, Cole, Gasconade, Montgomery, Osage and 1 more	50 min
Oct 26, 2:53 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Gasconade, Warren, Washington	52 min
Oct 26, 2:57 AM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Montgomery, Pike, Warren	48 min
Oct 26, 3:05 AM CDT	Tornado Warning	LSX	Lincoln, Pike	40 min
Oct 26, 3:31 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Iron, Jefferson, Reynolds, Saint Francois and 1 more	44 min
Oct 26, 4:12 AM CDT	Severe Thunderstorm Warning	LSX	Iron, Madison, Reynolds, Sainte Genevieve, Saint Francois, Washington	48 min

Nearby

Tornado Warnings in Illinois, 2010 Tornado Warnings in Missouri, 2010 Every tornado warning in 2010 Tornadoes in 2010

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.