Alert archive / Missouri / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 97, NWS St. Louis, MO

May 8, 2003Audrain County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 8, 2003, 11:45 PM CDT for Audrain County, Missouri. It was in force for 30 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 8, 2003, 11:45 PM CDT (04:45 UTC)
Expired
May 9, 2003, 12:15 AM CDT
In force
30 min
Issued by
NWS St. Louis, MO
Area
Counties, with a storm outline in the text

County Audrain County, MO

The radar

The St Louis radar (KLSX), 109 km from the middle of the area, began a volume at 04:48 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.

IssuedProductOfficeLasted
May 8, 9:00 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 4.8 hours before the alert went out and 284 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-pSkew-T log-p diagram, Davenport, at 00:00Z on 2003-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2003-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 213 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
1197 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
213 m²/s²
0-3 km storm-relative helicity
483 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.

348 
WUUS53 KLSX 090445
SVRLSX
MOC007-090515-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1145 PM CDT THU MAY 8 2003

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN AUDRAIN COUNTY IN CENTRAL MISSOURI

* UNTIL 1215 AM CDT

* AT 1145 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES WEST OF LADDONIA...MOVING EAST AT 50
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  LADDONIA
  FARBER
  VANDALIA

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.

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

LAT...LON 3932 9189 3909 9197 3916 9140 3933 9148

$$
FG

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 7:24 PM CDTSevere Thunderstorm WarningLSXKnox36 min
May 8, 7:48 PM CDTSevere Thunderstorm WarningLSXAudrain, Monroe, Ralls27 min
May 8, 8:21 PM CDTSevere Thunderstorm WarningLSXMarion39 min
May 8, 10:21 PM CDTSevere Thunderstorm WarningLSXLincoln39 min
May 8, 10:26 PM CDTSevere Thunderstorm WarningLSXMonroe49 min
May 8, 10:51 PM CDTSevere Thunderstorm WarningLSXAudrain, Boone54 min
May 8, 11:03 PM CDTTornado WarningLSXAudrain, Boone42 min
May 9, 12:04 AM CDTSevere Thunderstorm WarningLSXPike, Ralls41 min
May 9, 5:12 PM CDTSevere Thunderstorm WarningLSXAudrain, Monroe, Ralls48 min
May 9, 5:47 PM CDTSevere Thunderstorm WarningLSXPike, Ralls43 min
May 9, 5:59 PM CDTSevere Thunderstorm WarningLSXBoone46 min
May 9, 6:05 PM CDTSevere Thunderstorm WarningLSXAudrain, Monroe40 min
May 9, 6:17 PM CDTTornado WarningLSXPike43 min
May 9, 6:18 PM CDTTornado WarningLSXBoone42 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2003Every 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.