Alert archive / Missouri / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 423, NWS St. Louis, MO

August 23, 2000Marion County, Shelby County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Aug 23, 2000, 9:52 PM CDT for Marion County, Shelby County, Missouri. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Aug 23, 2000, 9:52 PM CDT (02:52 UTC)
Expired: Aug 23, 2000, 10:30 PM CDT
In force: 38 min
Issued by: NWS St. Louis, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Marion County, MO, Shelby County, MO

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 23, 9:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 2.9 hours before the alert went out and 231 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: 996 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 1022 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.9

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLSX 240254
SVRSTL
MOC127-205-240330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
952 PM CDT WED AUG 23 2000

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN MARION COUNTY IN NORTHEAST MISSOURI
  EASTERN SHELBY COUNTY IN NORTHEAST MISSOURI

* UNTIL 1030 PM CDT

* AT 952 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A SEVERE THUNDERSTORM 5 MILES SOUTHEAST OF SHELBYVILLE
  ...MOVING EAST SOUTHEAST 45 MPH.

* LOCATIONS IN THE PATH...
  WARREN
  PHILADELPHIA
  SHELBINA

THE PRIMARY THREAT POSED BY THIS STORM IS DAMAGING WINDS. MOVE
QUICKLY TO THE INTERIOR PORTION OF A STURDY SHELTER...AND STAY AWAY
FROM OUTSIDE WALLS AND WINDOWS.

LAT...LON 3996 9201 3967 9204 3967 9172 3970 9168
          3994 9166

GKS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 23, 10:03 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Monroe	42 min
Aug 23, 10:03 PM CDT	Severe Thunderstorm Warning	LSX	Boone	42 min
Aug 23, 10:04 PM CDT	Severe Thunderstorm Warning	LSX	Ralls	41 min
Aug 23, 10:36 PM CDT	Severe Thunderstorm Warning	LSX	Audrain	39 min
Aug 23, 10:40 PM CDT	Severe Thunderstorm Warning	LSX	Pike	50 min
Aug 23, 10:45 PM CDT	Severe Thunderstorm Warning	LSX	Ralls	30 min
Aug 23, 10:46 PM CDT	Severe Thunderstorm Warning	LSX	Montgomery	59 min
Aug 23, 10:58 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln	62 min
Aug 23, 11:02 PM CDT	Tornado Warning	LSX	Montgomery	28 min
Aug 23, 11:07 PM CDT	Severe Thunderstorm Warning	LSX	Warren	53 min
Aug 23, 11:21 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles	54 min
Aug 23, 11:40 PM CDT	Severe Thunderstorm Warning	LSX	Saint Louis, City of Saint Louis	65 min
Aug 23, 11:45 PM CDT	Severe Thunderstorm Warning	LSX	Franklin	45 min
Aug 23, 11:57 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson	63 min
Aug 24, 1:36 AM CDT	Flash Flood Warning	LSX	Audrain, Montgomery	5 hr
Aug 24, 2:28 AM CDT	Flash Flood Warning	LSX	Franklin, Warren	5 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2000 Every severe thunderstorm warning in 2000

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.