Alert archive / Missouri / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 92, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Sep 27, 1990, 10:47 PM CDT for Monroe County, Shelby County, Missouri. It was in force for 58 min.
The area
The counties it named.
The facts
- Issued
- Sep 27, 1990, 10:47 PM CDT (03:47 UTC)
- Expired
- Sep 27, 1990, 11:45 PM CDT
- In force
- 58 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Monroe County, MO, Shelby County, MO
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 3.8 hours before the alert went out and 318 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
- 902 J/kg
- Mixed-layer CIN
- -183 J/kg
- Mixed-layer LCL
- 2024 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 162 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 280347
SVRSTL
MOC137-205-280445-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1047 PM CDT THU SEP 27 1990
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1145 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN NORTHEAST MISSOURI
...MONROE...SHELBY
AT 1045 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS THAT
EXTENDED NEAR THE MACON-SHELBY COUNTY LINE. A STRONG THUNDERSTORM
WAS LOCATED NEAR CLARENCE. CLARENCE IS ABOUT 15 MILES EAST OF MACON.
THE STORMS WERE MOVING TO THE EAST AROUND 25 MPH. THESE STORMS HAVE
A HISTORY OF VERY STRONG WINDS.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.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 27, 10:15 PM CDT, 32 minutes before
MOZ006-280400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 1010 PM CDT THU SEP 28 1990 ...STRONG THUNDERSTORMS MOVING THROUGH NORTH CENTRAL MISSOURI... AT 1000 PM CDT RADAR SHOWED A BAND OF THUNDERSTORMS WITH STRONG AND GUSTY WINDS MOVING EASTWARD THROUGH THE NORTH COUNTIES OF CENTRAL MISSOURI. THE AREA WAS ABOUT 30 MILES WIDE AND WEST OF A LINE EXTENDING FROM ABOUT 40 MILES NORTHWEST OF COLUMBIA TO MACON TO ABOUT 20 MILES EAST OF KIRKSVILLE. OFFICIALS IN MACON COUNTY REPORTED LARGE TREE KNOCKED DOWN BY STRONG WINDS JUST NORTH OF BUCKLIN...ALONG THE LINN AND MACON COUNTY LINE. THESE THUNDERSTORMS WERE MOVING TO THE EAST AROUND 35 MILES AN HOUR AND WILL CONTINUE TO PRODUCE STRONG AND GUSTY WINDS ALONG WITH BRIEF DOWNPOURS AND POSSIBLY SOME HAIL. OTHER THUNDERSTORMS WITH DANGEROUS LIGHTENING AND STRONG WINDS WERE IN AN AREA ABOUT 20 MILES WIDE AND WEST OF A LINE FROM JUST WEST OF SEDALIA TO JUST NORTH OF GLASGOW...ABOUT 35 MILES NORTHWEST OF COLUMBIA. THESE THUNDERSTORMS WERE ALSO MOVING TO THE EAST AROUND 30 MILES AN HOUR.
Nearby
Severe Thunderstorm Warnings in Missouri, 1990Every severe thunderstorm warning in 1990
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.