Alert archive / Illinois / Tornado Warnings in 2004

Tornado Warning 71, NWS St. Louis, MO

November 1, 2004Marion County, Illinois

NWS St. Louis, MO issued this tornado warning at Nov 1, 2004, 2:59 PM CST for Marion County, Illinois. It was in force for 46 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: Nov 1, 2004, 2:59 PM CST (20:59 UTC)
Expired: Nov 1, 2004, 3:45 PM CST
In force: 46 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

County Marion County, IL

The radar

The Evansville,IN radar (KVWX), 117 km from the middle of the area, began a volume at 21:02 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 nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.0 hours before the alert went out and 169 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: 953 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 450 m²/s²
0-3 km storm-relative helicity: 757 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLSX 012059
TORLSX
ILC121-012145-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
258 PM CST MON NOV 1 2004

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL 345 PM CST

* AT 258 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION NEAR WAMAC. THE STORM WAS
  MOVING NORTHEAST AT 45 MPH...AND MAY PRODUCE A TORNADO AT ANY
  TIME

* LOCATIONS IMPACTED INCLUDE...
  SELMAVILLE
  ODIN
  SALEM
  TONTI
  BRUBAKER
  ALMA
  KINMUNDY
  STEPHEN FORBES STATE PARK
  OMEGA

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER NOW MOVE TO A
BASEMENT...UNDERGROUND STORM SHELTER...OR AN INTERIOR ROOM OR HALLWAY
ON THE LOWEST LEVEL OF A STURDY BUILDING.

IF YOU LIVE IN A MOBILE HOME OR TRAILER...ABANDON IT IMMEDIATELY AND
SEEK SHELTER IN A MORE SUBSTANTIAL SHELTER.

THE TORNADO WITH THIS STORM WILL LIKELY BE WRAPPED IN RAIN. DO NOT BE
LULLED INTO THINKING THE THREAT IS OVER DUE TO THE RAINFALL. STAY IN
SHELTER UNTIL THE LATEST WEATHER INFORMATION INDICATES THE THREAT HAS
PASSED.

LAT...LON 3858 8921 3843 8912 3868 8871 3883 8871
      3883 8889

$$

TRUETT/RP

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 1, 10:43 AM CST	Severe Thunderstorm Warning	LSX	Monroe	32 min
Nov 1, 1:52 PM CST	Tornado Warning	LSX	Randolph	23 min
Nov 1, 2:13 PM CST	Tornado Warning	LSX	Washington	47 min

Nearby

Tornado Warnings in Illinois, 2004 Every tornado warning in 2004 Tornadoes in 2004

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.