Alert archive / Missouri / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 70, NWS St. Louis, MO

May 6, 2003Crawford County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 6, 2003, 7:01 PM CDT for Crawford County, Missouri. It was in force for 44 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, 7:01 PM CDT (00:01 UTC)
Expired: May 6, 2003, 7:45 PM CDT
In force: 44 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), 110 km from the middle of the area, began a volume at 00:09 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, 6:35 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 0.0 hours before the alert went out and 242 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: 2206 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1529 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 234 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 14.3

Open this sounding in Storm Lab

The text

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

867 
WUUS53 KLSX 070001
SVRLSX
MOC055-070045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
700 PM CDT TUE MAY 6 2003

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN CRAWFORD COUNTY IN EAST CENTRAL MISSOURI

* UNTIL 745 PM CDT

* AT 700 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER CHERRYVILLE...MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
RURAL SOUTHERN CRAWFORD COUNTY

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A STRONG BUILDING. DO NOT
TAKE COVER UNDERNEATH TREES IF BOATING...GET OFF OF THE WATER AND
MOVE TO A SAFE SHELTER NOW IF CAMPING...ABANDON TENTS FOR A STURDY
STRUCTURE. AVOID LOW LYING AREAS...CREEK BEDS...AND LOW WATER
CROSSINGS AS THESE CAN FLOOD QUICKY.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA UNTIL 
MIDNIGHT. REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH 
LITTLE OR NO ADVANCE WARNING.

LAT...LON 3800 9155 3781 9155 3779 9133 3771 9130
          3770 9116 3776 9112 3803 9112

$$

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, 7:16 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, 7:38 PM CDT	Tornado Warning	LSX	Sainte Genevieve, Saint Francois	52 min
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

Severe Thunderstorm Warnings in Missouri, 2003 Every severe thunderstorm warning 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.