Alert archive / Illinois / Tornado Warnings in 2010

Tornado Warning 70, NWS St. Louis, MO

October 26, 2010Fayette County, Illinois

NWS St. Louis, MO issued this tornado warning at Oct 26, 2010, 5:54 AM CDT for Fayette County, Illinois. It was in force for 21 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: Oct 26, 2010, 5:54 AM CDT (10:54 UTC)
Expired: Oct 26, 2010, 6:15 AM CDT
In force: 21 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon

County Fayette County, IL

The radar

The Evansville,IN radar (KVWX), 127 km from the middle of the area, began a volume at 10:56 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.

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 26, 3:28 AM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 10.9 hours before the alert went out and 329 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.

358 
WFUS53 KLSX 261054
TORLSX
ILC051-261115-
/O.NEW.KLSX.TO.W.0070.101026T1054Z-101026T1115Z/

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

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  FAYETTE COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 615 AM CDT

* AT 550 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR SHOBONIER...OR 8 MILES SOUTH OF VANDALIA...
  AND MOVING NORTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BROWNSTOWN...ST. ELMO...WRIGHTS CORNER...LOOGOOTEE...AVENA AND ST.
  JAMES.

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.

&&

LAT...LON 3882 8895 3883 8903 3893 8916 3919 8881
      3892 8881 3892 8873
TIME...MOT...LOC 1054Z 226DEG 50KT 3891 8899

$$

TRUETT

1 follow-up statement

470 
WWUS53 KLSX 261110
SVSLSX

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

ILC051-261120-
/O.EXP.KLSX.TO.W.0070.000000T0000Z-101026T1115Z/
FAYETTE IL-
610 AM CDT TUE OCT 26 2010

...THE TORNADO WARNING FOR FAYETTE COUNTY WILL EXPIRE AT 615 AM
CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA.

LAT...LON 3882 8895 3883 8903 3893 8916 3919 8881
      3892 8881 3892 8873
TIME...MOT...LOC 1110Z 226DEG 50KT 3906 8878

$$

TRUETT

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, 3:34 AM CDT	Tornado Warning	LSX	Calhoun, Greene, Jersey, Pike	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, 6:03 AM CDT	Tornado Warning	LSX	Marion	17 min

Nearby

Tornado Warnings in Illinois, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.