Alert archive / Missouri / Tornado Warnings in 2003

Tornado Warning 3, NWS St. Louis, MO

May 4, 2003Crawford County, Missouri

NWS St. Louis, MO issued this tornado warning at May 4, 2003, 10:40 PM CDT for Crawford County, Missouri. It was in force for 50 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: May 4, 2003, 10:40 PM CDT (03:40 UTC)
Expired: May 4, 2003, 11:30 PM CDT
In force: 50 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

County Crawford County, MO

The radar

The St Louis radar (KLSX), 119 km from the middle of the area, began a volume at 03:43 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
May 4, 5:25 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 4, 6:05 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 3.7 hours before the alert went out and 229 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: 2099 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 756 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 321 m²/s²
0-3 km storm-relative helicity: 341 m²/s²
Significant tornado parameter: 4.6
Supercell composite: 15.8

Open this sounding in Storm Lab

The text

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

166 
WFUS53 KLSX 050340
TORLSX
MOC055-050430-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1040 PM CDT SUN MAY 4 2003

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN CRAWFORD COUNTY IN EAST CENTRAL MISSOURI

* UNTIL 1130 PM CDT

* AT 1040 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 11 MILES WEST OF COOK
  STATION. THE STORM WAS MOVING EAST AT 40 MPH. THIS STORM HAS A
  HISTORY OF PRODUCING TORNADOES AND MAY PRODUCE ADDITIONAL TORNADOES
  AT ANY TIME

* LOCATIONS IMPACTED INCLUDE...
  COOK STATION
  CHERRYVILLE
  DILLARD
  DAVISVILLE

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.

LAT...LON 3786 9172 3769 9173 3770 9116 3807 9111

$$
FG

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 9:14 PM CDT	Severe Thunderstorm Warning	LSX	Gasconade	31 min
May 4, 11:09 PM CDT	Tornado Warning	LSX	Iron, Washington	51 min
May 4, 11:43 PM CDT	Tornado Warning	LSX	Saint Francois	47 min
May 4, 11:58 PM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve	47 min
May 5, 2:56 AM CDT	Severe Thunderstorm Warning	LSX	Iron, Reynolds	49 min

Nearby

Tornado Warnings in Missouri, 2003 Every tornado warning in 2003 Tornadoes in 2003

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.