Alert archive / Missouri / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 452, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Sep 11, 2000, 9:47 PM CDT for Callaway County, Montgomery County, Missouri. It was in force for 43 min. 2 reports 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
- Sep 11, 2000, 9:47 PM CDT (02:47 UTC)
- Expired
- Sep 11, 2000, 10:30 PM CDT
- In force
- 43 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Callaway County, MO, Montgomery County, MO
The radar
The St Louis radar (KLSX), 102 km from the middle of the area, began a volume at 02:50 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 11, 10:14 PM CDT | Thunderstorm Wind 56 E | Wellsville, MO | The County Sheriff reported trees and power lines down in the Wellsville area. |
| Sep 11, 10:29 PM CDT | Thunderstorm Wind 56 E | Millersburg, MO | The County Sheriff reported trees down along Route J. |
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, 2.8 hours before the alert went out and 283 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.
- Mixed-layer CAPE
- 1561 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 2128 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 156 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KLSX 120247 SVRSTL MOC027-139-120330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 947 PM CDT MON SEP 11 2000 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CALLAWAY COUNTY IN CENTRAL MISSOURI MONTGOMERY COUNTY IN EAST CENTRAL MISSOURI * UNTIL 1030 PM CDT * AT 947 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 7 MILES NORTHWEST OF WELLSVILLE TO NEW BLOOMFIELD...MOVING EAST AT 35 MPH. * LOCATIONS IN THE PATH... WELLSVILLE WILLIAMSBURG BUELL MONTGOMERY CITY MINEOLA BELLFLOWER NEW FLORENCE BIG SPRING 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 3904 9210 3864 9220 3872 9147 3915 9128 LENNING
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 7:53 PM CDT | Severe Thunderstorm Warning | LSX | Knox | 52 min |
| Sep 11, 9:10 PM CDT | Severe Thunderstorm Warning | LSX | Boone | 50 min |
| Sep 11, 9:32 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Pike, Ralls | 58 min |
| Sep 11, 10:09 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Warren | 66 min |
| Sep 11, 10:51 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 39 min |
| Sep 11, 11:16 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 59 min |
| Sep 12, 12:01 AM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 59 min |
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.