Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 333, NWS St. Louis, MO

November 10, 1998Montgomery County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Nov 10, 1998, 1:06 AM CST for Montgomery County, Missouri. It was in force for 49 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Nov 10, 1998, 1:06 AM CST (07:06 UTC)
Expired
Nov 10, 1998, 1:55 AM CST
In force
49 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Montgomery County, MO

The radar

The St Louis radar (KLSX), 73 km from the middle of the area, began a volume at 07:07 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
Nov 10, 1:10 AM CSTThunderstorm Wind 61Bellflower, 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

Lincoln, IL (KILX), launched 00:00Z, 7.1 hours before the alert went out and 280 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, Lincoln, IL at 00:00Z on 1998-11-10Temperature 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 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 1998-11-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 561 square meters per square second.19395878Sfc1 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
550 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
561 m²/s²
0-3 km storm-relative helicity
703 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.

881 
WUUS1 KSTL 100709 RRA
SVRSTL
MOC139-100755-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
106 AM CST TUE NOV 10 1998

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MONTGOMERY COUNTY MISSOURI IN EASTERN MISSOURI

* UNTIL 155 AM CST

* AT 104 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM JUST SOUTHEAST OF MONTGOMERY CITY... MOVING
  NORTHEAST AT 50 MPH.

* LOCATIONS THAT WILL BE AFFECTED...
  BELLFLOWER
  HIGH HILL



SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND GUSTS IN EXCESS OF 60
MPH...DAMAGING HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. MOVE
TO AN INTERIOR ROOM ON THE LOWEST FLOOR OR YOUR HOME OR BUSINESS.
HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE
WATER COVERS THE ROAD.



GKS/FG

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 10, 12:29 AM CSTSevere Thunderstorm WarningLSXOsage51 min
Nov 10, 12:47 AM CSTTornado WarningLSXOsage48 min
Nov 10, 1:16 AM CSTSevere Thunderstorm WarningLSXLincoln, Pike49 min
Nov 10, 1:25 AM CSTTornado WarningLSXLincoln, Pike50 min
Nov 10, 1:45 AM CSTSevere Thunderstorm WarningLSXBoone, Cole, Moniteau65 min
Nov 10, 2:03 AM CSTSevere Thunderstorm WarningLSXCallaway, Osage62 min
Nov 10, 2:03 AM CSTSevere Thunderstorm WarningLSXAudrain62 min
Nov 10, 2:33 AM CSTSevere Thunderstorm WarningLSXGasconade, Montgomery62 min
Nov 10, 2:47 AM CSTSevere Thunderstorm WarningLSXPike63 min
Nov 10, 3:00 AM CSTSevere Thunderstorm WarningLSXCrawford, Franklin65 min
Nov 10, 3:00 AM CSTSevere Thunderstorm WarningLSXMarion, Ralls65 min
Nov 10, 3:00 AM CSTSevere Thunderstorm WarningLSXLincoln, Pike65 min
Nov 10, 3:00 AM CSTSevere Thunderstorm WarningLSXWarren65 min
Nov 10, 3:29 AM CSTSevere Thunderstorm WarningLSXJefferson, Saint Charles, Saint Louis, City of Saint Louis61 min
Nov 10, 3:29 AM CSTSevere Thunderstorm WarningLSXWashington61 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1998Every severe thunderstorm warning in 1998

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.