Alert archive / Missouri / Tornado Warnings in 2002

Tornado Warning 24, NWS St. Louis, MO

June 11, 2002Callaway County, Gasconade County, Osage County, Missouri

NWS St. Louis, MO issued this tornado warning at Jun 11, 2002, 6:27 PM CDT for Callaway County, Gasconade County, Osage County, Missouri. It was in force for 48 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: Jun 11, 2002, 6:27 PM CDT (23:27 UTC)
Expired: Jun 11, 2002, 7:15 PM CDT
In force: 48 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Callaway County, MO, Gasconade County, MO, Osage County, MO

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 11, 5:15 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.5 hours before the alert went out and 273 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: 1092 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 724 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 139 m²/s²
0-3 km storm-relative helicity: 164 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLSX 112327
TORSTL
MOC027-073-151-120015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
626 PM CDT TUE JUN 11 2002

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN CALLAWAY COUNTY IN CENTRAL MISSOURI
  NORTHEASTERN OSAGE COUNTY IN CENTRAL MISSOURI
  NORTHERN GASCONADE COUNTY IN EAST CENTRAL MISSOURI

* UNTIL 715 PM CDT

* AT 626 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 8 MILES NORTHWEST OF
  REFORM. THE THUNDERSTORM WAS MOVING SOUTHEAST AT 30 MPH...AND MAY
  PRODUCE A TORNADO AT ANY TIME

* LOCATIONS IN THE PATH...
  REFORM
  MOKANE
  STEEDMAN
  PORTLAND
  CHAMOIS
  MORRISON
  GASCONADE
  BAY
  SWISS

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.

THIS STORM WILL ALSO PRODUCE LARGE DESTRUCTIVE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH.

LAT...LON 3883 9177 3869 9196 3839 9151 3868 9138
          3869 9165

BRITT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 2:20 PM CDT	Severe Thunderstorm Warning	LSX		40 min
Jun 11, 3:00 PM CDT	Severe Thunderstorm Warning	LSX		30 min
Jun 11, 3:37 PM CDT	Severe Thunderstorm Warning	LSX		38 min
Jun 11, 4:06 PM CDT	Severe Thunderstorm Warning	LSX		24 min
Jun 11, 4:10 PM CDT	Severe Thunderstorm Warning	LSX		50 min
Jun 11, 4:24 PM CDT	Severe Thunderstorm Warning	LSX		51 min
Jun 11, 4:44 PM CDT	Severe Thunderstorm Warning	LSX		61 min
Jun 11, 4:55 PM CDT	Severe Thunderstorm Warning	LSX		50 min
Jun 11, 4:57 PM CDT	Severe Thunderstorm Warning	LSX		63 min
Jun 11, 5:33 PM CDT	Severe Thunderstorm Warning	LSX		42 min
Jun 11, 5:44 PM CDT	Severe Thunderstorm Warning	LSX		61 min
Jun 11, 5:51 PM CDT	Tornado Warning	LSX	Callaway	39 min

Nearby

Tornado Warnings in Missouri, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.