Alert archive / Missouri / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 48, NWS St. Louis, MO

May 2, 1997Ralls County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 2, 1997, 9:19 PM CDT for Ralls County, Missouri. It was in force for 41 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 2, 1997, 9:19 PM CDT (02:19 UTC)
Expired
May 2, 1997, 10:00 PM CDT
In force
41 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Ralls County, MO

The radar

The St Louis radar (KLSX), 117 km from the middle of the area, began a volume at 02:20 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

Davenport, (KDVN), launched 00:00Z, 2.3 hours before the alert went out and 248 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, Davenport, at 00:00Z on 1997-05-03Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 1997-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 square meters per square second.1939587897117Sfc1 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
483 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
65 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.

000 
TTAA00 KSTL 030219 RRA
SVRSTL
MOC173-030300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
919 PM CDT FRI MAY 2 1997
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST MISSOURI
 
   ...SOUTHERN RALLS COUNTY
 
AT 917 PM...NWS DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM IN SOUTHEAST
MONROE COUNTY NEAR SANTA FE. THIS STORM WAS MOVING EAST AT 30 MPH.
 
HAIL UP TO INCH IN DIAMETER IS POSSIBLE WITH THIS STORM AS IT MOVES
ACROSS SOUTHERN RALLS COUNTY NEAR THE TOWN OF PERRY.
 
THIS IS A DANGEROUS STORM! BE PREPARED FOR DAMAGING WINDS...HAIL
AND DEA DLY LIGHTNING. STAY INSIDE AND AWAY FROM WINDOWS.
 
FG/RP

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 2, 7:16 PM CDT, 2 hours 3 minutes before
ILZ064-065-069-070-074-079-100>102-MOZ041-047>051-059>065-072>075-
084-085-099-030315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
716 PM CDT FRI MAY 2 1997

...TORNADO WATCH 233 FOR SOUTHEAST MISSOURI AND A SMALL PORTION OF
SOUTHWEST ILLINOIS HAS EXPIRED...
...SEVERE THUNDERSTORM WATCH 235 IS NO LONGER IN EFFECT FOR PORTIONS
OF CENTRAL MISSOURI...

THE TORNADO WATCH WHICH WAS ISSUED FOR A LARGE PORTION OF SOUTHEAST
MISSOURI AND MUCH OF SOUTHWEST AND SOUTHERN ILLINOIS HAS EXPIRED AND
IS NO LONGER IN EFFECT. THE WATCH HAS EXPIRED FOR THE FOLLOWING
COUNTIES IN ILLINOIS...FAYETTE...MARION...BOND...CLINTON...
WASHINGTON...AND RANDOLPH COUNTIES. IN MISSOURI...STE.
GENEVIEVE..ST. FRANCOIS...AND MADISON COUNTIES IN SOUTHEAST
MISSOURI.

FURTHER WEST...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR A
LARGE PART OF SOUTHEAST AND EAST CENTRAL MISSOURI...BUT HAS BEEN
CANCELLED FOR SIX COUNTIES IN CENTRAL MISSOURI...BOONE...MONITEAU..
COLE...CALLAWAY...OSAGE...MONTGOMERY COUNTIES IN CENTRAL MISSOURI.
THIS INCLUDES THE CITIES OF JEFFERSON CITY AND COLUMBIA.

LOCALLY SEVERE THUNDERSTORMS ARE STILL A POSSIBILITY FOR MUCH OF THE
REST OF THE AREA THIS EVENING AND SEVERE THUNDERSTORM WATCH 235
REMAINS IN EFFECT...INCLUDING THE ST LOUIS METRO AREA. RESIDENTS
SHOULD KEEP ABREAST OF LOCAL WEATHER CONDITIONS AND POSSIBLE SEVERE
WEATHER WARNINGS OR STATEMENTS FROM THE NATIONAL WEATHER SERVICE.

PEDIGO
Special weather statement, May 2, 7:18 PM CDT, 2 hours 1 minute before
ILZ064-065-069-070-074-079-100>102-MOZ041-047>051-059>065-072>075-
084-085-099-030315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
716 PM CDT FRI MAY 2 1997

...TORNADO WATCH 233 FOR SOUTHEAST MISSOURI AND A SMALL PORTION OF
SOUTHWEST ILLINOIS HAS EXPIRED...
...SEVERE THUNDERSTORM WATCH 235 IS NO LONGER IN EFFECT FOR PORTIONS
OF CENTRAL MISSOURI...

THE TORNADO WATCH WHICH WAS ISSUED FOR A LARGE PORTION OF SOUTHEAST
MISSOURI AND MUCH OF SOUTHWEST AND SOUTHERN ILLINOIS HAS EXPIRED AND
IS NO LONGER IN EFFECT. THE WATCH HAS EXPIRED FOR THE FOLLOWING
COUNTIES IN ILLINOIS...FAYETTE...MARION...BOND...CLINTON...
WASHINGTON...AND RANDOLPH COUNTIES. IN MISSOURI...STE.
GENEVIEVE..ST. FRANCOIS...AND MADISON COUNTIES IN SOUTHEAST
MISSOURI.

FURTHER WEST...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR A
LARGE PART OF SOUTHEAST AND EAST CENTRAL MISSOURI...BUT HAS BEEN
CANCELLED FOR SIX COUNTIES IN CENTRAL MISSOURI...BOONE...MONITEAU..
COLE...CALLAWAY...OSAGE...MONTGOMERY COUNTIES IN CENTRAL MISSOURI.
THIS INCLUDES THE CITIES OF JEFFERSON CITY AND COLUMBIA.

LOCALLY SEVERE THUNDERSTORMS ARE STILL A POSSIBILITY FOR MUCH OF THE
REST OF THE AREA THIS EVENING AND SEVERE THUNDERSTORM WATCH 235
REMAINS IN EFFECT...INCLUDING THE ST LOUIS METRO AREA. RESIDENTS
SHOULD KEEP ABREAST OF LOCAL WEATHER CONDITIONS AND POSSIBLE SEVERE
WEATHER WARNINGS OR STATEMENTS FROM THE NATIONAL WEATHER SERVICE.

PEDIGO
Special weather statement, May 2, 7:20 PM CDT, 1 hour 59 minutes before
MOZ070-081>082-091>092-096-105-030315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
720 PM CDT FRI MAY 2 1997

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD MO HAS CANCELLED SEVERE
THUNDERSTORM WATCH NUMBER 235 FOR THE FOLLOWING COUNTIES...

MILLER   PULASKI   LACLEDE   WEBSTER   WRIGHT   DOUGLAS  OZARK

THE WATCH REMAINS IN EFFECT FOR HOWELL    TEXAS   PHELPS   MARIES
DENT   SHANNON  AND OREGON COUNTIES UNTIL 10PM.

THE AREA OF STRONG TO SEVERE THUNDERSTORMS WHICH PUSHED THROUGH
SECTIONS OF SOUTHWEST MISSOURI EARLIER THIS EVENING HAS MOVED INTO
SOUTH CENTRAL MISSOURI AND WILL NO LONGER AFFECT THE COUNTIES BEING
CLEARED FROM THE WATCH.  THE STORMS ARE EXPECTED TO PUSH OUT OF
SOUTH CENTRAL MISSOURI BY 9PM.

LINDENBERG
Special weather statement, May 2, 8:10 PM CDT, 1 hour 9 minutes before
MOZ059>062-072-030315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
810 PM CDT FRI MAY 2 1997

...SEVERE THUNDERSTORM WATCH 235 IS NO LONGER IN EFFECT FOR PORTIONS
OF EAST CENTRAL MISSOURI...

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS CANCELLED SEVERE
THUNDERSTORM WATCH NUMBER 235 FOR THE FOLLOWING COUNTIES IN EAST
CENTRAL MISSOURI...

ST. CHARLES...WARREN...FRANKLIN...CRAWFORD...AND GASCONADE
COUNTIES...INCLUDING THE CITIES OF ST. CHARLES...UNION...AND
STEELEVILLE.

SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE THIS EVENING...BUT
THE THREAT FOR SEVERE STORMS IN THE ABOVE MENTIONED AREAS HAS
DIMINISHED SUBSTANTIALLY.

PEDIGO
Special weather statement, May 2, 8:11 PM CDT, 1 hour 8 minutes before
MOZ059>062-072-030315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
810 PM CDT FRI MAY 2 1997

...SEVERE THUNDERSTORM WATCH 235 IS NO LONGER IN EFFECT FOR PORTIONS
OF EAST CENTRAL MISSOURI...

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS CANCELLED SEVERE
THUNDERSTORM WATCH NUMBER 235 FOR THE FOLLOWING COUNTIES IN EAST
CENTRAL MISSOURI...

ST. CHARLES...WARREN...FRANKLIN...CRAWFORD...AND GASCONADE
COUNTIES...INCLUDING THE CITIES OF ST. CHARLES...UNION...AND
STEELEVILLE.

SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE THIS EVENING...BUT
THE THREAT FOR SEVERE STORMS IN THE ABOVE MENTIONED AREAS HAS
DIMINISHED SUBSTANTIALLY.

PEDIGO
Special weather statement, May 2, 8:22 PM CDT, 57 minutes before
MOZ058-071-082>083-097>098-106-030415-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
822 PM CDT FRI MAY 2 1997

...SEVERE THUNDERSTORM WATCH 235 HAS BEEN CANCELLED FOR SOUTH
CENTRAL MISSOURI...

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING
SOUTH CENTRAL MISSOURI COUNTIES...

MARIES   PHELPS   DENT   TEXAS   SHANNON   HOWELL   OREGON

THE STRONG TO SEVERE THUNDERSTORMS HAVE PUSHED EAST OF THE AREA AND
ARE NO LONGER A THREAT TO PRODUCE SEVERE WEATHER FOR THE ABOVE
MENTIONED COUNTIES.

LINDENBERG

The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 8:53 PM CDTSevere Thunderstorm WarningLSXAudrain, Boone52 min
May 2, 9:01 PM CDTSevere Thunderstorm WarningLSXMonroe44 min
May 2, 9:30 PM CDTSevere Thunderstorm WarningLSXScotland45 min
May 2, 9:37 PM CDTSevere Thunderstorm WarningLSXKnox53 min
May 2, 10:08 PM CDTSevere Thunderstorm WarningLSXShelby52 min
May 2, 10:25 PM CDTSevere Thunderstorm WarningLSXMarion50 min
May 2, 10:35 PM CDTSevere Thunderstorm WarningLSXLincoln, Montgomery40 min
May 2, 10:44 PM CDTSevere Thunderstorm WarningLSXPike, Ralls31 min
May 2, 11:21 PM CDTSevere Thunderstorm WarningLSXLincoln39 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.