Alert archive / Illinois / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 116, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Sep 7, 1992, 11:35 PM CDT for Randolph County, Saint Clair County, Illinois. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Sep 7, 1992, 11:35 PM CDT (04:35 UTC)
- Expired
- Sep 8, 1992, 12:30 AM CDT
- In force
- 55 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Randolph County, IL, Saint Clair County, IL
The radar
The St Louis radar (KLSX), 85 km from the middle of the area, began a volume at 04:34 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
Paducah/Barkley, KY (KPAH), launched 00:00Z, 4.6 hours before the alert went out and 168 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
- 1069 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 1479 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 080438 SVRSTL ILC157-163-080530- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1135 PM CDT MON SEP 7 1992 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ILLINOIS ...NORTHERN RANDOLPH COUNTY...ST CLAIR COUNTY AT 1135 PM...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SMALL AREA OF SEVERE THUNDERSTORMS OVER MONROE COUNTY ILLINOIS...ABOUT 20 MILES SOUTH OF THE CITY OF ST LOUIS. WINDS OF 60 MILES AN HOUR WERE REPORTED WITH THIS AREA OF STORMS IN WATERLOO ILLINOIS AT APPROXIMATELY 1130 PM. THE STORM WAS MOVING EAST AT 30 MILES AN HOUR...AND WILL BE AFFECTING THE CITIES OF NEW ATHENS...REDBUD...PRAIRIE DU ROCHER...AND FLORAVILLE. 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. TRUETT
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, Sep 7, 8:22 PM CDT, 3 hours 13 minutes before
MOZ007-011-012-018-ILZ011-080215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 821 PM CDT MON SEP 7 1992 ...A NEW TORNADO WATCH HAS BEEN ISSUED FOR EASTERN MISSOURI... THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR PARTS OF EASTERN MISSOURI UNTIL 200 AM. TORNADO WATCH #821 HAS BEEN ISSED AND INCLUDES THE ENTIRE ST.LOUIS METROPOLITAN. THUNDERSTORMS WILL MOVE THIS DIRECTION FROM CENTRAL MISSOURI AND MAY PRODUCE TORNADOES. FRANKLIN...WARREN AND LINCOLN COUNTIES IN MISSOURI THAT WERE IN TORNADO WATCH #819 HAVE BEEN ADDED TO THE NEW TORNADO WATCH. IF A TORNADO WARNING IS ISSUED...TAKE COVER AT ONCE. STAY AWAY FROM WINDOWS AND MOVE TO A SAFE LOCATION IN YOUR HOME. BASEMENTS OR INTERIOR ROOMS ARE SAFEST. KEEP INFORMED OF DEVELOPING WEATHER THIS EVENING AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. SHEA
Special weather statement, Sep 7, 8:49 PM CDT, 2 hours 46 minutes before
MOZ003-005-006-009-010-080245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 849 PM CDT MON SEP 7 1992 ...PART OF TORNADO WATCH #819 HAS BEEN CANCELLED... A SECTION OF THE TORNADO WATCH FOR CENTRAL MISSOURI HAS BEEN CANCELLED. THE WATCH IS NO LONGER IN EFFECT FOR THE MACON AREA. THE COUNTIES OF LINN...MACON...CHARITON AND RANDOLPH ARE NO LONGER IN A TORNADO WATCH. RESIDENTS OF CENTRAL MISSOURI SHOULD REMAIN ALERT FOR THREATENING WEATHER THOUGH. THE REMAINDER OF THE TORNADO WATCH IS IN EFFECT AND CONDITIONS EXIST FAVORABLE FOR TORNADO DEVELOPMENT. LISTEN TO NOAA WEATHER RADIO FOR FURTHER UPDATES. SHEA
Special weather statement, Sep 7, 9:40 PM CDT, 1 hour 55 minutes before
MOZ009-010-013>017-019-020-080400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 938 PM CDT MON SEP 7 1992 ...A NEW SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR PARTS OF SOUTHERN AND CENTRAL MISSOURI... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PARTS OF SOUTHERN AND CENTRAL MISSOURI. SEVERE THUNDERSTORM WATCH NUMBER 822 IS IN EFFECT UNTIL 200 AM AND INCLUDES THE CITIES OF COLUMBIA...JEFFERSON CITY...SPRINGFIELD...JOPLIN...ROLLA AND SEDALIA. THIS NEW WATCH REPLACES TORNADO WATCH #819 THAT WAS IN EFFECT FOR CENTRAL MISSOURI. RESIDENTS OF CENTRAL AND SOUTHERN MISSOURI SHOULD REMAIN ALERT FOR SEVERE WEATHER. AN APPROACHING COLD FRONT WILLD CONTINUE TO TRIGGER THUNDERSTORMS OVERNIGHT...SOME OF WHICH WILL PRODUCE LARGE HAIL... DAMAGING WIND AND DEADLY LIGHTNING. SHEA
Special weather statement, Sep 7, 10:03 PM CDT, 1 hour 32 minutes before
MOZ011-012-080400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1003 PM CDT MON SEP 7 1992 ...SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR ST CHARLES COUNTY UNTIL 1030 PM CDT... ...SEVERE THUNDERSTORM WARNING FOR LINCOLN AND WARREN COUNTIES HAS EXPIRED... AT 1005 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM OVER NORTHWEST ST CHARLES COUNTY. WINDS WERE ESTIMATED AT 40 TO 50 MPH AT MID RIVERS MALLd IN ST PETERS. AT 940 PM...LINCOLN COUNTY SHERIFF REPORTED POWER LINES AND TREES DOWN AT TROY WITH WINDS ESTIMATED AT 60 MPH.
Special weather statement, Sep 7, 10:49 PM CDT, 46 minutes before
MOZ011-012-080400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1045 PM CDT MON SEP 7 1992 ...SEVERE THUNDERSTORM WATCH IS CANCELLED FOR A PORTION OF WEST CENTRAL AND CENTRAL MISSOURI... THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE JEFFERSON CITY AREA AND FOR SEDALIA. THE THREAT OF SEVERE THUNDERSTORMS HAS MOVED TO THE SOUTH OF THIS AREA.
Special weather statement, Sep 7, 11:02 PM CDT, 33 minutes before
MOZ011-013-014-080500-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
1055 PM CDT MON SEP 7 1992
...A TORNADO WATCH REMAIMS IN EFFECT FOR THE EXTREME SOUTHERN PART OF
OF CENTRAL MISSOURI UNTIL 2 AM CDT...
AT 1045 PM...A LINE OF STRONG THUNDERSTORMS WAS LOCATED IN THE SOUTH
PART OF CENTRAL MISSOURI. THE LINE OF STRONG THUNDERSTORMS WAS LOCATED
FROM NEAR ST. LOUIS...TO 50 MILES EAST OF ROLLA...TO 65 MILES
SOUTHWEST OF JEFFERSON CITY...NEAR THE TOWN OF HERMITAGE. THE STRONG
THUNDERSTORMS WERE MOVING TO THE EAST-SOUTHEAST AT 25 MILES AN HOUR.
THESE STORMS WILL PRODUCE STRONG GUSTY WINDS...FREQUENT DANGEROUS
LIGHTNING...SMALL HAIL AND HEAVY RAIN. ALTHOUGH NO SEVERE WEATHER WAS
INDICATED AT THIS TIME...THESE STORMS ARE STILL CAPABLE OF STRENGTHENING
AND PERSONS IN SOUTH PARTS OF CENTRAL MISSOURI SHOULD REMAIN ALERT FOR
THREATENING WEATHER AND SEEK SHELTER IN A STRONG BUILDING IF NEEDED.
STANLEYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 10:23 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 67 min |
| Sep 7, 11:25 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 65 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 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; radar from the NEXRAD Level II archive.