Alert archive / Missouri / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 20, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 20, 1992, 3:54 PM CDT for Lincoln County, Saint Charles County, Missouri. It was in force for 51 min.
The area
The counties it named.
The facts
- Issued
- Apr 20, 1992, 3:54 PM CDT (20:54 UTC)
- Expired
- Apr 20, 1992, 4:45 PM CDT
- In force
- 51 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Lincoln County, MO, Saint Charles County, MO
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 12:00Z, 8.9 hours before the alert went out and 277 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
- 515 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 607 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 244 m²/s²
- 0-3 km storm-relative helicity
- 231 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 202056 SVRSTL MOC113-183-202145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 354 PM CDT MON APR 20 1992 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSOURI ...EASTERN LINCOLN COUNTY...ST CHARLES COUNTY AT 354 PM...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS MOVING INTO LINCOLN COUNTY AND ACROSS ST CHARLES COUNTY. THESE STORMS EXTEND FROM 45 MILES NORTHWEST OF ST LOUIS...NEAR BOWLING GREEN...TO 30 MILES WEST OF ST LOUIS. MOVEMENT WAS NORTHEAST AT 35 MILES AN HOUR. THE CITIES OF O'FALLON...ELSEBERRY AND WINFIELD ARE IN THE PATH OF THESE STORMS. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. SHEA/GLASS
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, Apr 20, 1:28 PM CDT, 2 hours 26 minutes before
MOZALL-201900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 115 PM CDT MON APR 20 1992 ...MORE RAIN FOR CENTRAL MISSOURI... AT 1 PM A BAND OF SHOWERS...SOME OF THEM HEAVY...EXTENDED FROM 50 MILES WEST OF KIRKSVILLE...TO COLUMBIA...TO 50 MILES EAST OF SPRINGFIELD. THE HEAVIEST SHOWERS WERE LOCATED IN A NARROW LINE THAT EXTENDED FROM 15 MILES WEST OF COLUMBIA...TO 25 MILES WEST OF ROLLA. THE SHOWERS WERE MOVING NORTHEAST AT 25 MPH. THESE BRIEF...BUT SOMETIMES HEAVY SHOWERS...FALLING ON ALREADY SATURATED GROUND...WILL RESULT IN RUNOFF...ALLOWING CREEKS AND SMALL STREAMS TO OVERFLOW THEIR BANKS. RESIDENTS OF CENTRAL MISSOURI LIVING IN AREAS THAT ARE PRONE TO FLOODING SHOULD BE ON THE ALERT FOR RISING WATERS AND BE PREPARED TO MOVE TO HIGHER GROUND. NEVER ATTEMPT TO CROSS LOW WATER BRIDGES OR ROADWAYS UNDER WATER. . STAY TUNED TO WEATHER RADIO FOR FURTHER UPDATES. PERLOW
Special weather statement, Apr 20, 3:11 PM CDT, 43 minutes before
MOZALL-202115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 308 PM CDT MON APR 20 1992 ...A TORNADO WATCH IS IN EFFECT FOR PARTS OF NORTHEAST AND EAST CENTRAL MISSOURI UNTIL 1000 PM CDT THIS MONDAY AFTERNOON AND EVENING... ...A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE AFTERNOON AND EVENING HOURS FOR EAST CENTRAL AND SOUTHEAST MISSOURI... THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR PARTS OF NORTHEAST AND EAST CENTRAL MISSOURI. THIS MEANS CONDITIONS ARE RIGHT FOR THE DEVELOPMENT OF THUNDERSTORMS WHICH COULD PRODUCE TORNADOES. AT 305 PM THUNDERSTORMS WERE DEVELOPING RAPIDLY FROM NORTH OF COLUMBIA...TO ABOUT 30 MILES WEST OF ST LOUIS AND DOWN INTO THE SOUTHEAST PART OF THE STATE. MOVEMENT WAS NORTH AT 35 MILES AN HOUR. IF YOU LIVE IN NORTHEAST OR EAST CENTRAL MISSOURI...KEEP INFORMED OF THE LATEST WEATHER INFORMATION. WHEN STORMS APPROACH YOUR AREA...MOVE INDOORS AND TAKE SHELTER IF A TORNADO IS SPOTTED OR REPORTED. LISTEN TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION. IN ADDITION...A FLASH FLOOD WATCH REMAINS IN EFFECT FOR EAST CENTRAL AND SOUTHEAST MISSOURI THIS AFTERNOON AND EVENING. BE PREPARED TO MOVE QUICKLY KIF FLASH FLOODING IS REPORTED OR OBSERVED. STAY ON HIGH GROUND. SHEA
Special weather statement, Apr 20, 3:31 PM CDT, 23 minutes before
MOZ011-012-202130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 329 PM CDT MON APR 20 1992 ...STRONG THUNDERSTORMS MOVE INTO EAST CENTRAL MISSOURI... AT 327 PM...THUNDERSTORMS WITH VERY HEAVY RAIN WERE MOVING INTO EXTREME WEST ST CHARLES COUNTY. ONE STRONG STORM WAS OVER THE NORTHWEST CORNER...JUST NORTHWEST OF WENTZVILLE WHILE ANOTHER STORM WAS MOVING INTO THE SOUTHWEST SECTION OF THE COUNTY. MOVEMENT WAS NORTHEAST AT 35 MILES AN HOUR. THESE STORMS SHOULD PASS THROUGH THE WENTZVILLE AREA BY 345 PM...AND MOST OF ST CHARLES COUNTY BY 400 PM. MOVE INDOORS WHEN STORMS APPROACH. REMEMBER...THUNDERSTORMS DO OCCASIONALLY PRODUCE TORNADOES. STAY TUNED TO NOAA WEATZHER RADIO OR YOUR LOCAL RADIO AND TELEVISION STATIONS FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. SHEA
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 7:10 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 41 min |
| Apr 20, 12:32 AM CDT | Flash Flood Warning | LSX | Crawford, Iron, Washington | 6 hr |
| Apr 20, 12:32 AM CDT | Flash Flood Warning | LSX | Dent, Reynolds | 6 hr |
| Apr 20, 2:49 AM CDT | Flash Flood Warning | LSX | Madison | 5 hr |
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.