Alert archive / Missouri / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 4, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 14, 1994, 11:13 PM CDT for Schuyler County, Missouri. It was in force for 22 min.
The area
The counties it named.
The facts
- Issued
- Apr 14, 1994, 11:13 PM CDT (04:13 UTC)
- Expired
- Apr 14, 1994, 11:35 PM CDT
- In force
- 22 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Schuyler County, MO
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 4.2 hours before the alert went out and 313 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
- 2441 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 1451 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 127 m²/s²
- 0-3 km storm-relative helicity
- 247 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 13.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 150415 SVRSTL MOC197-150445- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1113 PM CDT THU APR 14 1994 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1145 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST MISSOURI ...NORTHERN SCHUYLER COUNTY AT 1110 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICTATED A SEVERE THUNDERSTORM JUST NORTHWEST OF LANCASTER...OR 25 MILES NORTH OF KIRKSVILLE. THE STORM WAS MOVING TO THE NORTHEAST AT 50 MILES AN HOUR AND WILL MOVE ACROSS THE MISSOURI/IOWA BORDER BY 1130 PM. 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. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DtO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. MORSE
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 14, 6:52 PM CDT, 4 hours 21 minutes before
MOZ001>005-011>014-020>022-028>030-037-043-150145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 652 PM CDT THU APR 14 1994 ...TORNADO WATCHES HAVE BEEN ISSUED FOR NORTHWEST MISSOURI... THE NATIONAL WEATHER SERVICE HAS ISSUED TWO TORNADO WATCHES FOR SECTIONS OF NORTHWEST MISSOURI THIS EVENING. THESE WATCHES ARE IN EFFECT UNTIL 100 AM EARLY FRIDAY MORNING AND INCLUDE THE LARGER CITIES OF KANSAS CITY...ST JOSEPH...AND MARYVILLE. CONDITIONS ARE FAVORABLE FOR THUNDERSTORM DEVELOPMENT IN THIS AREA. ONCE STORMS FORM OR MOVE INTO YOUR AREA...THEY MAY HAVE THE POTENTIAL TO PRODUCE SEVERE WEATHER AND POSSIBLY TORNADOES. IF YOU LIVE IN OR CLOSE TO THE WATCH AREA...LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. IN CASE A WARNING IS ISSUED...PREPARE AHEAD OF TIME AND KNOW WHAT TO DO IF A STORM APPROACHES. SHEA
Special weather statement, Apr 14, 9:00 PM CDT, 2 hours 13 minutes before
MOZ001>011-150400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 858 PM CDT THU APR 14 1994 ...A NEW TORNADO WATCH IS IN EFFECT FOR EXTREME NORTHERN MISSOURI... THE NATIONAL WEATHER SERVICE HAS ISSUED A NEW TORNADO WATCH FOR EXTREME NORTHERN MISSOURI UNTIL 300 AM EARLY FRIDAY MORNING. THIS WATCH REPLACES TORNADO WATCH #83 THAT WAS IN EFFECT FOR 6 COUNTIES IN NORTHWEST MISSOURI. AT 855 PM...THUNDERSTORMS CONTINUED TO DEVELOP NEAR THE NEBRASKA-IOWA- MISSOURI STATE LINES. CONDITIONS REMAIN FAVORABLE FOR SEVERE THUNDERSTORMS THIS EVENING...SOME OF WHICH MAY PRODUCE TORNADOES. IF YOU LIVE IN OR CLOSE TO THE WATCH AREA...REMAIN ALERT FOR THREATENING WEATHER. LISTENt FOR LATER STATEMENTS AND POSSIBLE WARNINGS. TAKE QUICK ACTION OF A WARNING IS ISSUED OR YOU OBSERVE SEVERE WEATHER. REPEATING...A TORNADO WATCH HAS BEEN ISSUED FOR EXTREME NORTHERN MISSOURI UNTIL 300 AM. SHEA
Special weather statement, Apr 14, 10:32 PM CDT, 41 minutes before
MOZ008>010-150530- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1030 PM CDT THU APR 14 1994 ...A TORNADO WATCH REMAINS IN EFFECT FOR EXTREME NORTHERN MISSOURI UNTIL 300 AM... AT 1025 PM...THERE WERE NO THUNDERSTORMS IN NORTHEAST MISSOURI BUT NUMEROUS THUNDERSTORMS WERE PRODUCING SEVERE WEATHER OVER SECTIONS OF SOUTHERN IOWA. CONDITIONS REMAIN FAVORABLE LATE THIS EVENING FOR SEVERE THUNDERSTORM DEVELOPMENT ACROSS SCHUYLER...SCOTLAND OR CLARK COUNTIES SO RESIDENTS SHOULD LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. SHEA
Special weather statement, Apr 14, 10:50 PM CDT, 23 minutes before
MOZ024-025-032-039>042-045>051-055>059-068>070-150450- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MISSOURI 1046 PM CDT THU APR 14 1994 ...A STRONG THUNDERSTORM WAS MOVING TOWARD PETTIS COUNTY... AT 1045 PM RADAR INDICATED AN ISOLATED THUNDERSTORM WITH HEAVY RAIN LOCATED 40 MILES SOUTHWEST OF SEDALIA NEAR CLINTON. THIS STORM WAS MOVING NORTHEAST AT 30 MILES AN HOUR AND IS EXPECTED TO MOVE NEAR SEDALIA AROUND 1130 PM. MORE THU,NDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE REGION TONIGHT. SOME OF THE THUNDERSTORMS COULD BE SEVERE SO CENTRAL MISSOURI RESIDENTS SHOULD STAY TUNED FOR LATER STATEMENTS OR POSSIBLE WARNINGS. GG
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 4:42 AM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 48 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.