Alert archive / Missouri / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 377, NWS St. Louis, MO

August 7, 2000Boone County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Aug 7, 2000, 10:13 PM CDT for Boone County, Missouri. It was in force for 47 min. 1 report came from 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, with what was reported inside it.

The facts

Issued
Aug 7, 2000, 10:13 PM CDT (03:13 UTC)
Expired
Aug 7, 2000, 11:00 PM CDT
In force
47 min
Issued by
NWS St. Louis, MO
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Boone County, MO

The radar

The St Louis radar (KLSX), 148 km from the middle of the area, began a volume at 03:16 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.

What was reported inside it

TimeReportWhereRemark
Aug 7, 10:37 PM CDTThunderstorm Wind 50 MColumbia Arpt, MO

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 3.2 hours before the alert went out and 268 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 00:00Z on 2000-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2405 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 00:00Z on 2000-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.1939Sfc1 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
2405 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
1671 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.9

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLSX 080313
SVRSTL
MOC019-080400-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1013 PM CDT MON AUG 7 2000

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BOONE COUNTY IN CENTRAL MISSOURI

* UNTIL 1100 PM CDT

* AT 1013 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR MIDWAY...MOVING EAST NORTHEAST AT 25 MPH.

* LOCATIONS IN THE PATH...
  COLUMBIA
  MURRY
  HALLSVILLE

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 3926 9246 3891 9251 3886 9245 3864 9223
          3893 9216 3925 9212

GKS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 7:03 PM CDTSevere Thunderstorm WarningLSXWarren57 min
Aug 7, 7:18 PM CDTSevere Thunderstorm WarningLSXSaint Charles57 min
Aug 7, 7:39 PM CDTSevere Thunderstorm WarningLSXCallaway, Cole51 min
Aug 7, 7:39 PM CDTSevere Thunderstorm WarningLSXAudrain51 min
Aug 7, 8:08 PM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis52 min
Aug 7, 8:14 PM CDTSevere Thunderstorm WarningLSXGasconade, Montgomery, Osage61 min
Aug 7, 8:16 PM CDTSevere Thunderstorm WarningLSXWarren44 min
Aug 7, 8:29 PM CDTSevere Thunderstorm WarningLSXFranklin61 min
Aug 7, 8:46 PM CDTSevere Thunderstorm WarningLSXLincoln, Saint Charles44 min
Aug 7, 9:13 PM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis47 min
Aug 7, 10:06 PM CDTFlash Flood WarningLSXBoone, Callaway, Moniteau5 hr
Aug 7, 10:40 PM CDTSevere Thunderstorm WarningLSXCallaway50 min
Aug 7, 11:01 PM CDTSevere Thunderstorm WarningLSXMoniteau44 min
Aug 7, 11:09 PM CDTSevere Thunderstorm WarningLSXOsage51 min
Aug 7, 11:22 PM CDTSevere Thunderstorm WarningLSXGasconade, Montgomery38 min
Aug 8, 1:07 AM CDTSevere Thunderstorm WarningLSXBoone38 min
Aug 8, 1:55 AM CDTFlash Flood WarningLSXBoone, Callaway, Moniteau5 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2000Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.