Alert archive / Missouri / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 83, NWS St. Louis, MO

May 26, 2004Franklin County, Gasconade County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 26, 2004, 11:56 AM CDT for Franklin County, Gasconade County, Missouri. It was in force for 49 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 26, 2004, 11:56 AM CDT (16:56 UTC)
Expired
May 26, 2004, 12:45 PM CDT
In force
49 min
Issued by
NWS St. Louis, MO
Area
Counties, with a storm outline in the text

Counties Franklin County, MO, Gasconade County, MO

The radar

The St Louis radar (KLSX), 65 km from the middle of the area, began a volume at 16:55 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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 4.9 hours before the alert went out and 274 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, Springfield, MO at 12:00Z on 2004-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1235 joules per kilogram.LCLLFCEL10008507005003002001001 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, Springfield, MO at 12:00Z on 2004-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 230 square meters per square second.1939587897Sfc1 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
1235 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
521 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
230 m²/s²
0-3 km storm-relative helicity
257 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.6

Open this sounding in Storm Lab

The text

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

400 
WUUS53 KLSX 261656
SVRLSX
MOC071-073-261745-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1155 AM CDT WED MAY 26 2004

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL 1245 PM CDT

* AT 1155 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER OWENSVILLE...MOVING EAST AT 35 MPH. 
  AREA LAW ENFORCEMENT REPORTED DIME SIZED HAIL AT OWENVILLE AT 1155
  AM.

* LOCATIONS IMPACTED INCLUDE...
  ROSEBUD
  GERALD
  BEAUFORT
  ST. CLAIR
  PARKWAY
  UNION
  LONEDELL
  VILLA RIDGE
  GRAY SUMMIT

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.

LAT...LON 3844 9166 3823 9164 3824 9079 3852 9080

$$

TRUETT

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 8:04 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve41 min
May 26, 7:44 AM CDTSevere Thunderstorm WarningLSXLincoln, Montgomery, Pike46 min
May 26, 8:14 AM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade46 min
May 26, 8:16 AM CDTSevere Thunderstorm WarningLSXOsage44 min
May 26, 8:40 AM CDTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis50 min
May 26, 8:51 AM CDTSevere Thunderstorm WarningLSXJefferson39 min
May 26, 9:21 AM CDTSevere Thunderstorm WarningLSXSainte Genevieve, Saint Francois39 min
May 26, 12:31 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Washington44 min
May 26, 1:10 PM CDTSevere Thunderstorm WarningLSXJefferson, Sainte Genevieve50 min
May 26, 2:26 PM CDTSevere Thunderstorm WarningLSXIron, Madison, Saint Francois64 min
May 26, 4:06 PM CDTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis24 min
May 26, 4:31 PM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis14 min
May 26, 4:59 PM CDTSevere Thunderstorm WarningLSXCallaway, Cole, Osage46 min
May 26, 5:29 PM CDTSevere Thunderstorm WarningLSXLincoln46 min
May 26, 5:41 PM CDTSevere Thunderstorm WarningLSXMontgomery, Warren49 min
May 26, 6:19 PM CDTSevere Thunderstorm WarningLSXLincoln, Pike26 min
May 26, 6:30 PM CDTTornado WarningLSXFranklin, Saint Charles, Saint Louis45 min
May 26, 6:36 PM CDTSevere Thunderstorm WarningLSXCrawford39 min
May 26, 6:40 PM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis50 min
May 26, 6:46 PM CDTTornado WarningLSXCrawford44 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2004Every severe thunderstorm warning in 2004

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.