Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 138, NWS St. Louis, MO

May 22, 1998Madison County, Illinois; Saint Louis County, City of Saint Louis, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 22, 1998, 1:52 AM CDT for Madison County, Illinois; Saint Louis County, City of Saint Louis, Missouri. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 22, 1998, 1:52 AM CDT (06:52 UTC)
Expired
May 22, 1998, 2:55 AM CDT
In force
63 min
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Madison County, IL, City of Saint Louis, MO, Saint Louis County, MO

The radar

The St Louis radar (KLSX), 43 km from the middle of the area, began a volume at 06:54 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

Lincoln, IL (KILX), launched 00:00Z, 6.9 hours before the alert went out and 211 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 1998-05-22Temperature 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 km15 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 1998-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
1615 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
137 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.

886 
WUUS1 KSTL 220653 RRA
SVRSTL
ILC119-MOC189-510-220755-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
152 AM CDT FRI MAY 22 1998

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MADISON COUNTY ILLINOIS IN SOUTHWESTERN ILLINOIS
  NORTHERN ST LOUIS COUNTY IN EAST CENTRAL MISSOURI
  ST LOUIS CITY IN EAST CENTRAL MISSOURI

* UNTIL 255 AM CDT

* AT 150 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR FEURGUSON... MOVING EAST AT 25 MPH.

* LOCATIONS THAT WILL BE AFFECTED...
  GRANITE CITY
  MADISON
  MARYVILLE

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.



DM/AMS

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 21, 8:10 PM CDT, 5 hours 42 minutes before
MOZ072>075-084-085-099-220145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
810 PM CDT THU MAY 21 1998

...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR A PORTION OF
EAST CENTRAL AND SOUTHEAST MISSOURI...

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING
COUNTIES...

IN MISSOURI...CRAWFORD...WASHINGTON...ST. FRANCOIS...STE. GENEVIEVE
...REYNOLDS...IRON...AND MADISON

SHOWERS AND THUNDERSTORMS WILL END OVER THIS AREA THIS EVENING.
MORE SHOWERS AND THUNDERSTORMS ARE LIKELY AGAIN OVERNIGHT.

AMS
Special weather statement, May 21, 8:10 PM CDT, 5 hours 42 minutes before
MOZ072>075-084-085-099-220145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
810 PM CDT THU MAY 21 1998

...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR A PORTION OF
EAST CENTRAL AND SOUTHEAST MISSOURI...

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING
COUNTIES...

IN MISSOURI...CRAWFORD...WASHINGTON...ST. FRANCOIS...STE. GENEVIEVE
...REYNOLDS...IRON...AND MADISON

SHOWERS AND THUNDERSTORMS WILL END OVER THIS AREA THIS EVENING.
MORE SHOWERS AND THUNDERSTORMS ARE LIKELY AGAIN OVERNIGHT.

AMS

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 1:06 AM CDTSevere Thunderstorm WarningLSXJersey64 min
May 22, 1:20 AM CDTSevere Thunderstorm WarningLSXCalhoun65 min
May 22, 2:12 AM CDTSevere Thunderstorm WarningLSXJersey33 min
May 22, 2:17 AM CDTSevere Thunderstorm WarningLSXAdams48 min
May 22, 2:34 AM CDTSevere Thunderstorm WarningLSXPike61 min
May 22, 2:59 AM CDTTornado WarningLSXPike51 min
May 22, 3:31 AM CDTSevere Thunderstorm WarningLSXCalhoun, Greene64 min
May 22, 3:50 AM CDTSevere Thunderstorm WarningLSXMacoupin65 min
May 22, 4:08 AM CDTSevere Thunderstorm WarningLSXJersey47 min
May 22, 4:44 AM CDTSevere Thunderstorm WarningLSXMontgomery51 min
May 22, 5:02 AM CDTSevere Thunderstorm WarningLSXBond48 min
May 22, 5:20 AM CDTSevere Thunderstorm WarningLSXFayette50 min
May 22, 5:40 AM CDTSevere Thunderstorm WarningLSXMarion50 min
May 22, 7:35 AM CDTSevere Thunderstorm WarningLSXAdams35 min
May 22, 8:00 AM CDTSevere Thunderstorm WarningLSXBrown, Pike50 min
May 22, 8:52 AM CDTSevere Thunderstorm WarningLSXGreene, Macoupin33 min
May 22, 9:22 AM CDTSevere Thunderstorm WarningLSXMontgomery48 min
May 21, 7:12 PM CDTSevere Thunderstorm WarningLSXMadison48 min
May 22, 12:40 AM CDTSevere Thunderstorm WarningLSXScotland60 min
May 22, 1:04 AM CDTSevere Thunderstorm WarningLSXKnox61 min
May 22, 1:27 AM CDTSevere Thunderstorm WarningLSXClark, Lewis63 min
May 22, 1:57 AM CDTSevere Thunderstorm WarningLSXMarion, Shelby63 min
May 22, 2:48 AM CDTSevere Thunderstorm WarningLSXPike62 min
May 22, 5:01 PM CDTSevere Thunderstorm WarningLSXOsage49 min
May 22, 5:25 PM CDTSevere Thunderstorm WarningLSXGasconade45 min
May 22, 5:55 PM CDTSevere Thunderstorm WarningLSXCrawford50 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1998Severe Thunderstorm Warnings in Illinois, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.