Alert archive / Missouri / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 71, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 11, 1992, 4:35 PM CDT for City of Saint Louis, Missouri. It was in force for 32 min.
The area
The counties it named.
The facts
- Issued
- Jul 11, 1992, 4:35 PM CDT (21:35 UTC)
- Expired
- Jul 11, 1992, 5:07 PM CDT
- In force
- 32 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County City of Saint Louis, MO
The nearest sounding before it
Springfield, MO (KUMN), launched 12:00Z, 9.6 hours before the alert went out and 370 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.
- Mixed-layer CAPE
- 178 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 906 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 203 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 112134 SVRSTL MOC099-189-510-112230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 435 PM CDT SAT JUL 11 1992 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSOURI ...EXTREME NORTHERN JEFFERSON COUNTY...ST LOUIS COUNTY AND THE INDEPENDENT CITY OF ...ST LOUIS CITY AT 435 PM...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 25 MILES SOUTHWEST OF DOWNTOWN ST LOUIS..OVER EXTREME SOUTHWEST ST LOUIS COUNTY. THE STORM WAS MOVING EAST-NORTHEAST AT 25 MILES AN HOUR...AND WILL BE AFFECTING THE CITIES OF ST LOUIS...PACIFIC...AS WELL AS THE WESTERN SUBURBS OF ST LOUIS. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. TRUETT/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, Jul 11, 3:35 PM CDT, 1 hour before
MOZ009-010-013-112130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 335 PM CDT SAT JUL 11 1992 ...STRONG THUNDERSTORMS NEAR PETTIS COUNTY... AT 330 PM STRONG THUNDERSTORMS WERE IN WEST CENTRAL MISSOURI FROM 15 MILES WEST TO 30 MILES NORTHWEST OF SEDALIA MOVING EAST AT 20 MILES AN HOUR. THESE THUNDERSTORMS WERE PRODUCING BRIEF HEAVY RAIN AND DANGEROUS LIGHTNING. OTHER SHOWERS AND EMBEDDED THUNDERSHOWERS WERE WIDESPREAD OVER NnORTHWEST SECTIONS OF CENTRAL MISSOURI...WEST OF A LINE FROM MARSHALL AND GLASGOW TO KIRKSVILLE. LA GREE
Special weather statement, Jul 11, 3:49 PM CDT, 46 minutes before
MOZ012-112145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 348 PM CDT SAT JUL 11 1992 ...STRONG THUNDERSTORM HAS DEVELOPED RAPIDLY 20 MILES SOUTH OF ST LOUIS... AT 345 PM...WEATHER SERVICE RADAR INDICATED A STRONG THUNDERSTORM OVER NORTHEAST JEFFERSON COUNTY NEAR CRYSTAL CITY. THIS IS ABOUT 20 MILES SOUTH OF DOWNTOWN ST LOUIS. THIS STORM WAS MOVING NORTHEAST AT 25 MILES AN HOUR...AND WILL PASS NORTHEAST JEFFERSON AND EXTREME SOUTHERN ST LOUIS COUNTIES IN MISSOURI...AND NORTHERN MONROE AND WESTERN ST CLAIR COUNTIES IN ILLINOIS...BETWEEN 340 AND 430 PM THIS AFTERNOON. AT 345 PM NO SEVERE WEATHER WAS DETECTED WITH THIS STORM...BUT HEAVY RAINS...SMALL HAIL...AND DEADLY LIGHTNING CAN BE EXPECTED AS IT PASSES OVER AN AREA. PEOPLE IN THE PATH OF THIS STORM SHOULD MOVE TO AN STURDY PERMANENT SHELTER TO REDUCE THEIR CHANCES OF BEING INJURED BY LIGHTNING. TRUETT
Special weather statement, Jul 11, 4:30 PM CDT, 5 minutes before
MOZ012-112230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 429 PM CDT SAT JUL 11 1992 ...STRONG THUNDERSTORMS CONTINUE OVER EAST CENTRAL MISSOURI AND SOUTHWEST ILLINOIS... AT 425 PM...WEATHER SERVICE RADAR CONTINUED TO INDICATE STRONG THUNDERSTORMS SCATTERED ACROSS EXTREME EAST CENTRAL MISSOURI AND SOUTHWEST ILLINOIS. ONE LONE STORM WAS ALONG THE MONROE-ST CLAIR COUNTY LINE IN ILLINOIS...OR ABOUT 15 MILES SOUTHEAST OF DOWNTOWN ST LOUIS. THIS STORM WAS MOVING EAST NORTHEAST AT 25 MILES AN HOUR...AND WILL PASS THROUGH ST CLAIR COUNTY BETWEEN 425 AND 515 PM. THE SECOND AREA OF STORMS EXTENDED FROM JUST WEST OF DOWNTOWN ST LOUIS...ACROSS ST LOUIS COUNTY...TO EXTREME NORTHEAST FRANKLIN COUNTY ABOUT 25 MILES SOUTHWEST OF ST LOUIS. THIS AREA OF STORMS WAS ALSO MOVING NORTHEAST...AND WILL BE PASSING THROUGH ST LOUIS COUNTY AND CITY BETWEEN 425 AND 530 PM. AT THIS TIME NO SEVERE WEATHER WAS DETECTED...HOWEVER...BRIEF HEAVY RAINS...SMALL HAIL...AND WIND GUSTS OF 50 MILES AN HOUR CAN BE EXPECTED AS THE STORMS PASS OVER AN AREA. THESE STORMS WILL ALSO PRODUCE DEADLY LIGHTNING. FOR YOUR OWN PROTECTION...MOVE TO A STURDY PERMANENT SHELTER. DO NOT TAKE COVER UNDER A TREE....OR OTHER TALL OBJECT. TRUETT/FERRY
Special weather statement, Jul 11, 4:32 PM CDT, 3 minutes before
MOZ009-010-013-112230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 430 PM CDT SAT JUL 11 1992 ...STRONG THUNDERSTORMS OVER WEST CENTRAL MISSOURI... AT 425 PM STRONG THUNDERSTORMS WERE IN WEST CENTRAL MISSOURI FROM NEAR SEDALIA TO 40 MILES NORTHEAST OF SEDALIA AROUND GLASGOW MOVING TO THE EAST AT 20 MILES AN HOUR. THE STRONGEST THUNDERSTORM WAS ABOUT 15 MILES NORTHEAST OF SEDALIA. THESE THUNDERSTORMS CONTAINED HEAVY RAIN DANGEROUS LIGHTNING...BRIEF GUSTY WINDS AND POSSIBLY SMALL HAIL. THESE THUNDERSTORMS WILL STRETCH FROM 30 MILES NORTH OF COLUMBIA NEAR MOBERLY TO ABOUT 15 MILES SOUTHWEST OF COLUMBIA BY 530 PM. PERSONS ACROSS CENTRAL MISSOURI SHOULD BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS THIS AFTERNOON...AND BE PREPARED TO MOVE INSIDE IF THUNDERSTORMS THREATEN. LISTEN TO NOAA WEATHER RADIO FOR THE LATEST STATEMENTS OR IF NECESSARY WARNINGS. LA GREE
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 4:35 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 55 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1992Every severe thunderstorm warning in 1992
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.