Alert archive / Illinois / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 10, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 12, 1990, 4:41 PM CDT for Saint Charles County, Missouri; Calhoun County, Jersey County, Illinois. It was in force for 49 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 12, 1990, 4:41 PM CDT (21:41 UTC)
- Expired
- May 12, 1990, 5:30 PM CDT
- In force
- 49 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Calhoun County, IL, Jersey County, IL, Saint Charles County, MO
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 12, 5:00 PM CDT | Thunderstorm Wind 0 | Calhoun, IL | |
| May 12, 5:00 PM CDT | Hail 1.75 | St. Charles, MO |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 12:00Z, 9.7 hours before the alert went out and 271 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
- 1113 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 474 m²/s²
- 0-3 km storm-relative helicity
- 601 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 122148
SVRSTL
ILC013-083-MOC183-122230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
441 PM CDT SAT MAY 12 1990
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTHWEST ILLINOIS
...SOUTHERN CALHOUN...JERSEY
IN EAST CENTRAL MISSOURI
...NORTHERN ST CHARLES
AT 440 PM CDT ONE INCH HAIL WAS REPORTED AT OFALLON MISSOURI IN
NORTHERN ST. CHARLES COUNTY. THIS SEVERE STORM WAS MOVING EAST AT 45
MPH. PERSONS IN THE CITIES OF ST. CHARLES AND JERSEYVILLE SHOULD
TAKE SHELTER AS THE SEVERE WEATHER APPROACHES.
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 DQRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
EISEWhat 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, May 12, 3:42 PM CDT, 59 minutes before
MOZALL-100300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 330 PM CDT SAT MAY 12 1990 ...A SEVERE THUNDERSTORMS WATCH IS IN EFFECT FOR MUCH OF CENTRAL AND SOUTHERN MISSOURI UNTIL 10 PM... AT 315 PN...THE NATIONAL WEATHER SERVICE ISSUED A SEVERE THUNDERSTORMS WATCH FOR MUCH OF CENTRAL AND SOUTHERN MISSOURI FOR THIS AFTERNOON AND THIS EVENING UNTIL 10 PM. A LINE OF THUNDERSTORMS WITH HEAVY RAIN DEVELOPED THIS AFTERNOON FROM NEAR THE LAKE OF THE OZARK IN SOUTH CENTRAL MISSOURI TO NEAR TROY IN LINCON COUNTY AND THSES STORMS WERE MOVING TO THE EAST AT 25 MPH. LARGE HAIL...DANGEROUS LIGHTING AND STRONG AND GUSTY WIND ARE POSSIBLE WITH IN THESE AREA. ACQUAVIVA
Special weather statement, May 12, 3:46 PM CDT, 55 minutes before
MOZALL-100300- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE ST LOUIS MO 330 PM CDT SAT MAY 12 1990 ...A SEVERE THUNDERSTORMS WATCH IS IN EFFECT FOR MUCH OF CENTRAL AND SOUTHERN MISSOURI UNTIL 10 PM... AT 315 PM...THE NATIONAL WEATHER SERVICE ISSUED A SEVERE THUNDERSTORMS WATCH FOR MUCH OF CENTRAL AND SOUTHERN MISSOURI FOR THIS AFTERNOON AND THIS EVENING UNTIL 10 PM. A LINE OF THUNDERSTORMS WITH HEAVY RAIN DEVELOPED THIS AFTERNOON FROM NEAR THE LAKE OF THE OZARK IN SOUTH CENTRAL MISSOURI TO NEAR TROY IN LINCON COUNTY AND THESE STORMS WERE MOVING TO THE EAST AT 25 MPH. LARGE HAIL...DANGEROUS LIGHTING AND STRONG AND GUSTY WIND ARE POSSIBLE WITH IN THESE AREA. ACQUAVIVA
Special weather statement, May 12, 3:53 PM CDT, 48 minutes before
MOZ010-014-122050 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 350 PM CDT SAT MAY 12 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR CENTRAL MISSOURI UNTIL 1000PM CDT... AT 345 PM RADAR SHOWED A LINE OF STRONG THUNDERSTORMS...ABOUT 15 MILES WIDE...EXTENDING FROM 20 MILES EAST OF COLUMBIA THROUGH THE LAKE OF THE OZARKS AROUND CAMDENTON. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AROUND 30 MILES AN HOUR AND WILL PRODUCE GUSTY WINDS AND SMALL HAIL ALONG WITH THE BRIEF DOWNPOURS. BY 5PM CDT THE LINE WILL EXTEND FROM WELLSVILLE..IN NORTHERN MONTGOMERY COUNTY...TO NEW HAVEN IN GASCONADE COUNTY TO IBERIA..ABOUT 50 MILES SOUTH OF COLUMBIA.
Special weather statement, May 12, 4:13 PM CDT, 28 minutes before
MOZ012-122230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 410 PM CDT SAT MAY 12 1990 ...A VERY STRONG STORM WAS IN WARREN COUNTY MISSOURI... AT 405 PM...A STRONG THUNDERSTORMS WITH VERY HEAVY RAIN...SMALL HAIL AND STRONG GUSTY WIND WAS JUST NORTHEAST OF WARRENTON...WHICH IS 40 MILES WEST NORTHWEST OF ST LOUIS. THIS STORM WAS MOVING EAST AT 30 MPH AND WILL PASS THROUGH SOUTHERN LINCOLN AND NORTHERN LINCOLN COUNTIES OF EAST CENTRAL MISSOURI BETWEEN 415 AND 500 PM. BRIEF VERY HEAVY RAIN...SMALL HAIL AND WIND GUSTS TO 50 MPH CAN BE EXPECTED IN THAT AREA. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MUCH OF CENTRAL ...SOUTH CENTRAL AND PORTIONS OF EAST CENTRAL MISSOURI UNTIL 10 PM. TUCKER
Special weather statement, May 12, 4:18 PM CDT, 23 minutes before
MOZ012-122230- SPECIAL WEATHER STATEMENT...CORRECTION FOR COUNTIES NATIONAL WEATHER SERVICE ST LOUIS MO 410 PM CDT SAT MAY 12 1990 ...A VERY STRONG STORM WAS IN WARREN COUNTY MISSOURI... AT 405 PM...A STRONG THUNDERSTORMS WITH VERY HEAVY RAIN...SMALL HAIL AND STRONG GUSTY WIND WAS JUST NORTHEAST OF WARRENTON...WHICH IS 40 MILES WEST NORTHWEST OF ST LOUIS. THIS STORM WAS MOVING EAST AT 30 MPH AND WILL PASS THROUGH SOUTHERN LINCOLN AND NORTHERN ...ST CHARLES... COUNTIES OF EAST CENTRAL MISSOURI BETWEEN 415 AND 500 PM. BRIEF VERY HEAVY RAIN...SMALL HAIL AND WIND GUSTS TO 50 MPH CAN BE EXPECTED IN THAT AREA. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MUCH OF CENTRAL ...SOUTH C$ENTRAL AND PORTIONS OF EAST CENTRAL MISSOURI UNTIL 10 PM. TUCKER
Special weather statement, May 12, 4:41 PM CDT, 0 minutes before
MOZ010-014-122230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 445 PM CDT SAT MAY 12 1990 ...SEVERE THUNDERSTORM WATCH FOR ALL BUT NORTH CENTRAL MISSOURI UNTIL 10PM... A LINE OF INTENSE THUNDERSTORMS 10 MILES WIDE EXTENDED FROM 55 MILES EAST OF COLUMBIA NEAR WARRENTON TO 50 MILES SOUTHWEST OF ROLLA NEAR LEBANON. THE STRONGEST THUNDERSTORM WAS 20 MILES NORTH OF ROLLA NEAR OWENSVILLE. THE THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR...AND WILL PRODUCUE HEAVY RAIN...DANGEROUS LIGHTNING...GUSTY WINDS TO NEAR 50 MILES AN HOUR AND SMALL HAIL. THE LINE WILL EXTEND FROM NEAR ST. LOUIS TO 20 MILES SOUTH OF ROLLA BY 545 PM CDT. PERSONS IN PULASKI...MARIES AND GASCONADE COLUNTIES SHOULD STAY INDOORS UNTIL THESE THUNDERSTORMS PASS THROUGH THEIR AREAS. LA GREE
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 5:57 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 48 min |
| May 12, 5:57 PM CDT | Severe Thunderstorm Warning | LSX | City of Saint Louis | 48 min |
| May 12, 5:21 PM CDT | Tornado Warning | LSX | Jersey | 39 min |
| May 12, 6:13 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette | 47 min |
| May 12, 6:50 PM CDT | Severe Thunderstorm Warning | LSX | Effingham | 40 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1990Severe 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.