Alert archive / Missouri / Tornado Warnings in 2003

Tornado Warning 16, NWS St. Louis, MO

May 6, 2003Sainte Genevieve County, Saint Francois County, Missouri

NWS St. Louis, MO issued this tornado warning at May 6, 2003, 7:38 PM CDT for Sainte Genevieve County, Saint Francois County, Missouri. It was in force for 52 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 6, 2003, 7:38 PM CDT (00:38 UTC)
Expired: May 6, 2003, 8:30 PM CDT
In force: 52 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Saint Francois County, MO, Sainte Genevieve County, MO

The radar

The St Louis radar (KLSX), 80 km from the middle of the area, began a volume at 00:40 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 6, 5:40 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.6 hours before the alert went out and 281 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: 208 J/kg
Mixed-layer CIN: -120 J/kg
Mixed-layer LCL: 1589 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

934 
WFUS53 KLSX 070038
TORLSX
MOC186-187-070130-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
738 PM CDT TUE MAY 6 2003

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI
  NORTHERN STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI

* UNTIL 830 PM CDT

* AT 738 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION NEAR FRENCH VILLAGE. THE
  STORM WAS MOVING EAST AT 40 MPH...AND MAY PRODUCE A TORNADO AT ANY
  TIME

* LOCATIONS IMPACTED INCLUDE...
  BLOOMSDALE

THIS TORNADO WARNING IS AN UPGRADE TO THE SEVERE THUNDERSTORM WARNING
PREVIOUSLY ISSUED FOR THE WARNED AREA.

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 3807 9045 3800 9053 3790 9045 3798 9002
          3812 9024

$$

TES/RP

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 7:01 PM CDT	Severe Thunderstorm Warning	LSX	Crawford	44 min
May 6, 7:16 PM CDT	Tornado Warning	LSX	Franklin, Jefferson	59 min
May 6, 7:25 PM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve, Saint Francois	50 min
May 6, 7:37 PM CDT	Flash Flood Warning	LSX	Franklin	3 hr
May 6, 7:55 PM CDT	Flash Flood Warning	LSX	Jefferson	4 hr
May 6, 8:00 PM CDT	Tornado Warning	LSX	Sainte Genevieve	45 min
May 6, 8:07 PM CDT	Tornado Warning	LSX	Iron, Madison, Saint Francois	38 min
May 6, 8:46 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Madison, Reynolds	59 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.