Alert archive / Missouri / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 92, NWS St. Louis, MO

May 26, 1997Madison County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 26, 1997, 2:29 PM CDT for Madison County, Missouri. It was in force for 31 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 26, 1997, 2:29 PM CDT (19:29 UTC)
Expired
May 26, 1997, 3:00 PM CDT
In force
31 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Madison County, MO

The radar

The St Louis radar (KLSX), 139 km from the middle of the area, began a volume at 19:31 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

Little Rock, AR (KLZK), launched 12:00Z, 7.5 hours before the alert went out and 297 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, Little Rock, AR at 12:00Z on 1997-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2792 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, Little Rock, AR at 12:00Z on 1997-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 square meters per square second.193958Sfc1 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
2792 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
536 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
1.0
Supercell composite
5.8

Open this sounding in Storm Lab

The text

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

696 
WUUS1 KSTL 261931 RRA
SVRSTL
MOC123-262000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
229 PM CDT MON MAY 26 1997
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST MISSOURI
 
   ...NORTHERN MADISON COUNTY
 
AT 228 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM NEAR ROZELLE...OR ABOUT 15 MILES NORTHWEST OF
FREDERICKTOWN. THIS STORM WAS MOVING TO THE EAST AT 25 MPH.
COMMUNITIES IN THE PATH INCLUDE...FREDERICKTOWN AND JUNCTION CITY...
AND ALONG HIGHWAY 72. THE PRIMARY THREAT FROM THIS STORM WILL BE
LARGE HAIL.
 
THIS IS A DANGEROUS STORM BE PREPARED FOR DAMAGING WINDS...HAIL
AND DEADLY LIGHTNING. STAY INSIDE AND AWAY FROM WINDOWS.
 
PEDIGO/FERRY

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 26, 11:15 AM CDT, 3 hours 14 minutes before
MOZ042-041-050-010-048-072-062-059-084-018-019-065-052-085-027-047-
051-034-049-036-035-099-061-075-074-063-064-009-026-060-073-ILZ095-
064-096-098-069-065-058-099-059-100-070-102-060-097-079-101-074-
270500-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
1115 AM CDT MON MAY 26 1997

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER
SERVICE FORECAST OFFICE IN ST LOUIS.  AREAS INCLUDED ARE PARTS OF
CENTRAL...NORTHEAST AND EAST CENTRAL MISSOURI...AND SOUTHWEST
ILLINOIS.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF
CENTRAL AND EAST CENTRAL MISSOURI AND SOUTHWEST MISSOURI FOR THIS
AFTERNOON AND TONIGHT.  THE AFFECTED AREA IS GENERALLY SOUTH OF
INTERSTATE 70...INCLUDING THE CITIES OF ST LOUIS...COLUMBIA...AND
JEFFERSON CITY.

A STATIONARY FRONT ACROSS SOUTHERN MISSOURI WILL BE THE FOCUS FOR
THUNDERSTORM REDEVELOPMENT LATER THIS AFTERNOON OR EVENING. SOME OF
THE THUNDERSTORMS MAY BECOME SEVERE WITH LARGE HAIL AND DAMAGING
WINDS.

SPOTTER PERSONNEL AND EMERGENCY MANAGERS SHOULD REMAIN ALERT FOR
POSSIBILITY OF SKYWARN OPERATIONS DURING THE AFTERNOON AND NIGHTTIME
HOURS.
Special weather statement, May 26, 11:24 AM CDT, 3 hours 5 minutes before
MOZ042-041-050-010-048-072-062-059-084-018-019-065-052-085-027-047-
051-034-049-036-035-099-061-075-074-063-064-009-026-060-073-ILZ095-
064-096-098-069-065-058-099-059-100-070-102-060-097-079-101-074-
270500-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
1115 AM CDT MON MAY 26 1997

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER
SERVICE FORECAST OFFICE IN ST LOUIS.  AREAS INCLUDED ARE PARTS OF
CENTRAL...NORTHEAST AND EAST CENTRAL MISSOURI...AND SOUTHWEST
ILLINOIS.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF
CENTRAL AND EAST CENTRAL MISSOURI AND SOUTHWEST MISSOURI FOR THIS
AFTERNOON AND TONIGHT.  THE AFFECTED AREA IS GENERALLY SOUTH OF
INTERSTATE 70...INCLUDING THE CITIES OF ST LOUIS...COLUMBIA...AND
JEFFERSON CITY.

A STATIONARY FRONT ACROSS SOUTHERN MISSOURI WILL BE THE FOCUS FOR
THUNDERSTORM REDEVELOPMENT LATER THIS AFTERNOON OR EVENING. SOME OF
THE THUNDERSTORMS MAY BECOME. SEVERE WITH LARGE HAIL AND DAMAGING
WINDS.

SPOTTER PERSONNEL AND EMERGENCY MANAGERS SHOULD REMAIN ALERT FOR
POSSIBILITY OF SKYWARN OPERATIONS DURING THE AFTERNOON AND NIGHTTIME
HOURS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 7:13 PM CDTSevere Thunderstorm WarningLSXGasconade47 min
May 25, 7:14 PM CDTSevere Thunderstorm WarningLSXFranklin, Saint Louis46 min
May 25, 7:36 PM CDTSevere Thunderstorm WarningLSXFranklin54 min
May 25, 7:49 PM CDTSevere Thunderstorm WarningLSXJefferson56 min
May 25, 8:12 PM CDTSevere Thunderstorm WarningLSXSaint Charles, Warren33 min
May 25, 8:18 PM CDTSevere Thunderstorm WarningLSXCrawford, Washington42 min
May 25, 8:46 PM CDTSevere Thunderstorm WarningLSXJefferson44 min
May 25, 9:24 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve51 min
May 25, 10:47 PM CDTSevere Thunderstorm WarningLSXWashington43 min
May 26, 3:15 AM CDTFlash Flood WarningLSXCole, Osage3 hr
May 26, 4:43 AM CDTSevere Thunderstorm WarningLSXSainte Genevieve, Saint Francois47 min
May 26, 5:39 PM CDTSevere Thunderstorm WarningLSXMadison51 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1997Every severe thunderstorm warning in 1997

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.