Alert archive / Missouri / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 6, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 15, 1994, 4:42 AM CDT for Saint Charles County, Missouri. It was in force for 48 min.
The area
The counties it named.
The facts
- Issued
- Apr 15, 1994, 4:42 AM CDT (09:42 UTC)
- Expired
- Apr 15, 1994, 5:30 AM CDT
- In force
- 48 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Saint Charles County, MO
The radar
The St Louis radar (KLSX), 9 km from the middle of the area, began a volume at 09:42 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, 9.7 hours before the alert went out and 257 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2422 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 150944 SVRSTL MOC183-151030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 442 AM CDT FRI APR 15 1994 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL MISSOURI ...ST CHARLES COUNTY AT 440 AM...RADAR INDICATED A SEVERE THUNDERSTORM MOVING ACROSS SOUTHERN WARREN COUNTY. THIS STORM IS MOVING EAST AT 35 MILES AN HOUR AND WILL MOVE INTO ST CHARLES COUNTY BY 500 AM. THE COMMUNITIES OF WENTZVILLE...NEW MELLE AND AUGUSTA ARE IN THE PATH OF THIS STORM. 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
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 15, 3:02 AM CDT, 1 hour 40 minutes before
MOZ032>111-ILZ096>102-150900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 300 AM CDT FRI APR 15 1994 ...A TORNADO WATCH HAS BEEN ISSUED FOR SECTIONS OF SOUTHERN...CENTRAL AND EASTERN MISSOURI UNTIL 900 AM... THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FROM SOUTH CENTRAL MISSOURI INTO WEST CENTRAL ILLINOIS UNTIL 900 AM THIS EARLY FRIDAY MORNING. A LINE OF THUNDERSTORMS IS EXPECTED TO MOVE THROUGH A LARGE SECTION OF MISSOURI THIS MORNING AND CONDITIONS REMAIN FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT. IF THESE STORMS BECOME SEVERE...TORNADOES ARE POSSIBLE. LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS AS THESE STORMS MOVE THROUGH THE AREA. SHEA
Special weather statement, Apr 15, 3:17 AM CDT, 1 hour 25 minutes before
ILZ095>102-150920- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 316 AM CDT FRI APR 15 1994 ...TORNADO WATCHES REMAIN IN EFFECT THROUGH THE EARLY MORNING HOURS... MOST OF NORTHEAST AND EAST CENTRAL MISSOURI...AS WELL AS SOUTHWEST ILLINOIS IS UNDER A TORNADO WATCH EARLY THIS MORNING. A LINE OF THUNDERSTORMS EXTENDED FROM THE QUINCY AREA TO NEAR COLUMBIA AS OF 315 AM AND CONTINUES TO PUSH EAST. ALTHOUGH VERY LITTLE IN THE WAY OF SEVERE WEATHER HAS BEEN REPORTED ACROSS NORTHEAST MISSOURI AS OF 300 AM...CONDITIONS REMAIN RIGHT FOR SEVERE THUNDERSTORMS AND POSSIBLY TORNADOES. THESE STORMS WILL PUSH INTO THE ST LOUIS AREA BY AROUND 500 AM. LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA SOURCES FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. IF A TORNADO WARNING IS ISSUED... MOVE TO THE LOWEST FLOOR IN YOUR HOUSE OR BUSINESS AND TAKE SHELTER IN AN INTERIOR ROOM. BASEMENTS ARE ALSO SAFE PLACES TO PROTECT YOURSELF FROM DAMAGING THUNDERSTORMS. 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
Special weather statement, Apr 15, 3:32 AM CDT, 1 hour 10 minutes before
MOZ052-036-ILZ098-058-097-150930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 330 AM CDT FRI APR 15 1994 ...STRONG WINDS WERE MOVING INTO EAST CENTRAL MISSOURI... A LINE OF THUNDERSTORMS FROM WEST CENTRAL ILLINOIS INTO CENTRAL MISSOURI IS PRODUCING AN AREA OF STRONG WIND OUT AHEAD OF THEM. THESE STRONG NORTHWEST WINDS WERE PUSHING ACROSS PIKE COUNTIES IN MISSOURI AND ILLINOIS. THEY WILL ENTER LINCOLN COUNTY MISSOURI...CALHOUN AND GREENE COUNTIES IN ILLINOIS BY 400 AM. SPEEDS OF 35 TO 45 MILES AN HOUR ARE POSSIBLE WITH THIS LINE OF WIND GUSTS. SHEA
Special weather statement, Apr 15, 3:45 AM CDT, 57 minutes before
MOZ062-065-052-061-063-064-060-ILZ098-058-099-100-102-101-150945- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 344 AM CDT FRI APR 15 1994 ...A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 AM... AT 340 AM...A LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDED FROM PIKE COUNTY ILLINOIS...25 MILES EAST OF HANNIBAL...TO NEAR COLUMBIA MISSOURI. THESE STORMS WERE MOVING EAST AT 35 TO 40 MILES AN HOUR. AS THESE STORMS CONTINUE TO MOVE INTO EAST CENTRAL MISSOURI...RESIDENTS OF THE ST LOUIS AREA AND SURROUNDING COUNTIES SHOULD PREPARE FOR POSSIBLE SEVERE WEATHER. GUSTY WIND...HAIL AND FREQUENT LIGHTNING ARE POSSIBLE...ALONG WITH THE THREAT OF A TORNADO. THE GREATEST CHANCES FOR SEVERE WEATHER WILL BE BETWEEN 400 AND 600 AM FOR THE ST LOUIS AREA. LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA SOURCE FOR LATER STATEMENTS AND POSSIBLE WARNINGS. SHEA
Special weather statement, Apr 15, 4:07 AM CDT, 35 minutes before
MOZ001>115-151015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 406 AM CDT FRI APR 15 1994 ...THE TORNADO WATCH FROM SOUTHWEST MISSOURI INTO NORTHERN MISSOURI HAS BEEN CANCELLED... TORNADO WATCH #87 HAS BEEN CANCELLED. THIS WATCH WAS IN EFFECT FROM SOUTHWEST MISSOURI INTO THE NORTHERN COUNTIES. THUNDERSTORMS HAVE MOVED THROUGH THIS AREA AND SEVERE WEATHER IS NO LONGER EXPECTED. A TORNADO WATCH CONTINUES THOUGH FOR AREA^S EAST OF THERE...FROM SOUTHERN MISSOURI ACROSS CENTRAL AND EASTERN MISSOURI INTO WESTERN ILLINOIS. THIS WATCH RUNS UNTIL 900 AM. SHEA
Special weather statement, Apr 15, 4:18 AM CDT, 24 minutes before
MOZ017-010-018-019-052-027-034-036-035-008-009-026-ILZ095-064-096- 098-058-097-049-151015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 417 AM CDT FRI APR 15 1994 ...TORNADO WATCHES CONTINUE FOR SECTIONS OF NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS... TORNADO WATCH #88 CONTINUES FOR AREAS JUST SOUTH AND EAST OF THE QUINCY/HANNIBAL AREA EARLY THIS MORNING. THE THREAT FOR SEVERE WEATHER CONTINUES BETWEEN ST LOUIS AND HANNIBAL. FURTHER NORTH THOUGH...THE WATCHES HAVE BEEN CANCELLED. THE IMMEDIATE QUINCY/HANNIBAL AREA AND UP TOWARDS KIRKSVILLE ARE NO LONGER IN A TORNADO WATCH. SHEA
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 11:13 PM CDT | Severe Thunderstorm Warning | LSX | Schuyler | 22 min |
| Apr 15, 2:17 AM CDT | Severe Thunderstorm Warning | LSX | Monroe | 28 min |
| Apr 15, 4:22 AM CDT | Tornado Warning | LSX | Franklin, Warren | 43 min |
| Apr 15, 4:50 AM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 40 min |
| Apr 15, 4:50 AM CDT | Severe Thunderstorm Warning | LSX | City of Saint Louis | 40 min |
| Apr 15, 4:52 AM CDT | Tornado Warning | LSX | Jefferson | 38 min |
| Apr 15, 6:28 AM CDT | Tornado Warning | LSX | Perry | 32 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1994Every severe thunderstorm warning in 1994
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.