Alert archive / Missouri / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 147, NWS St. Louis, MO

July 19, 1997Sainte Genevieve County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jul 19, 1997, 5:41 PM CDT for Sainte Genevieve County, Missouri. It was in force for 34 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
Jul 19, 1997, 5:41 PM CDT (22:41 UTC)
Expired
Jul 19, 1997, 6:15 PM CDT
In force
34 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Sainte Genevieve County, MO

The radar

The St Louis radar (KLSX), 99 km from the middle of the area, began a volume at 22:43 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 12:00Z, 10.7 hours before the alert went out and 286 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 12:00Z on 1997-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1479 joules per kilogram.LCLLFCEL10008507005003002001001 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, Lincoln, IL at 12:00Z on 1997-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.1939Sfc1 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
1479 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
924 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
56 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 192242 RRA
SVRSTL
MOC186-192315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
541 PM CDT SAT JUL 19 1997
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  615 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MISSOURI
 
   ...EASTERN STE. GENEVIEVE COUNTY
 
AT 538 PM...NWS DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES
SOUTH-SOUTHEAST OF STE GENEVIEVE NEAR ST MARY. THE STORM WAS MOVING TO
THE SOUTHEAST AROUND 5 MPH AND WILL BE CAPABLE OF PRODUCING DAMAGING
WIND GUSTS TO AROUND 60 MPH AND AROUND ONE INCH DIAMETER HAIL.
A COMMUNITY IN THE PATH IS ST MARY.
 
THIS IS A DANG*EROUS STORM! BE PREPARED FOR DAMAGING WINDS...HAIL
AND DEADLY LIGHTNING. STAY INSIDE AND AWAY FROM WINDOWS.
 
RP/METZE

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

Local storm report, Jul 19, 5:35 PM CDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MISSOURI
535 PM CDT SAT JUL 19 1997

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0210 PM    BARRY                     IL   WIND DAMAGE
07/19/97   PIKE                           POWER LINES DOWN

0245 PM    CAMP POINT                IL   1 INCH HAIL
07/19/97   ADAMS

0245 PM    CAMP POINT                IL   WIND DAMAGE
07/19/97   ADAMS                          TREES DOWN

0343 PM    ST PETERS                 MO   1 INCH HAIL
07/19/97   ST CHARLES

0346 PM    ST PETERS                 MO   .75 INCH HAIL
07/19/97   ST CHARLES

0350 PM    PARIS                     MO   WIND DAMAGE
07/19/97   MONROE                         TREES DOWN

METZE
Local storm report, Jul 19, 5:37 PM CDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MISSOURI
535 PM CDT SAT JUL 19 1997

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0210 PM    BARRY                     IL   WIND DAMAGE
07/19/97   PIKE                           POWER LINES DOWN

0245 PM    CAMP POINT                IL   1 INCH HAIL
07/19/97   ADAMS

0245 PM    CAMP POINT                IL   WIND DAMAGE
07/19/97   ADAMS                          TREES DOWN

0343 PM    ST PETERS                 MO   1 INCH HAIL
07/19/97   ST CHARLES

0346 PM    ST PETERS                 MO   .75 INCH HAIL
07/19/97   ST CHARLES

0350 PM    PARIS                     MO   WIND DAMAGE
07/19/97   MONROE                         TREES DOWN

METZE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 12:59 PM CDTSevere Thunderstorm WarningLSXMarion, Ralls46 min
Jul 19, 1:41 PM CDTSevere Thunderstorm WarningLSXLincoln49 min
Jul 19, 1:59 PM CDTSevere Thunderstorm WarningLSXClark46 min
Jul 19, 3:46 PM CDTSevere Thunderstorm WarningLSXSaint Charles44 min
Jul 19, 3:52 PM CDTSevere Thunderstorm WarningLSXMonroe53 min
Jul 19, 4:00 PM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis45 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.