Alert archive / Illinois / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 18, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 3, 1989, 4:57 PM CDT for Perry County, Illinois. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Apr 3, 1989, 4:57 PM CDT (21:57 UTC)
- Expired
- Apr 3, 1989, 5:30 PM CDT
- In force
- 33 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Perry County, IL
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
Paducah/Barkley, KY (KPAH), launched 12:00Z, 10.0 hours before the alert went out and 127 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
- 55 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 556 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 171 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTL 032158
SVRSTL
ILC145-032230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
457 PM CDT MON APR 3 1989
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 530 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF
SOUTHERN ILLINOIS...
PERRY
AT 450 PM CDT A SEVERE THUNDERSTORM WAS IN NORTHWEST PERRY COUNTY...
35 MILES WEST SOUTHWEST OF MOUNT VERNON. IT WAS MOVING TO THE EAST
AT 45 MPH.
PERSONS IN PERRY COUNTY ILLINOIS...ESPECIALLY THE NORTH AND EAST PARTS
OF THE COUNTY SHOULD BE ALERT FOR THIS STORM. BE PREPARED TO TAKE
SHELTER. REMEMBER THAT A TORNADO WATCH IS ALSO IN EFFECT. SEVERE
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE
OR NO WARNING.
MCCARTHYWhat 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 3, 11:41 AM CDT, 5 hours 16 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 1135 AM CDT MON APR 3 1989 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 4PM THIS AFTERNOON FROM SOUTHWEST MISSOURI THROUGH EAST CENTRAL MISSOURI. AT 1133 AM CDT...SCATTERED THUNDERSTORMS WERE IN CENTRAL MISSOURI BETWEEN COLUMBIA AND JEFFERSON CITY...MOVING TO THE NORTHEAST AT 40 MILES AN HOUR. PEA SIZE AND MARBLE SIZE HAIL WERE REPORTED WITH THESE STORMS. LIGHT RAIN WAS IN NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS...MOVING TO THE NORTHEAST AT 30 MILES AN HOUR. WIPFLER
Special weather statement, Apr 3, 12:00 PM CDT, 4 hours 57 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 12 PM CDT MON APR 3 1989 ...SEVERE THUNDERSTORM WATCH FOR CENTRAL MISSOURI UNTIL 4PM... ...VERY STRONG THUNDERSTORMS CONTINUE IN CENTRAL MISSOURI... AT 1156 AM CDT VERY STRONG THUNDERSTORMS CAPABLE OF PRODUCING PEA TO MARBLE SIZE HAIL...DANGEROUS LIGHTNING...AND WIND GUSTS TO 50 MPH WERE LOCATED IN CENTRAL MISSOURI FROM 20 MILES WEST OF JEFFERSON CITY NEAR CALIFORNIA TO 35 MILES SOUTHEAST OF JEFFERSON CITY NEAR OWENSVILLE. MARBLE SIZE HAIL WAS REPORTED AT LINN IN OSAGE COUNTY AT 1150 AM. THE STRONGEST STORMS WERE LOCATED JUST WEST OF OWENSVILLE AMD JUST EAST OF LINN...20 MILES SOUTHEAST OF JEFFERSON CITY. THE STORMS WERE MOVING EAST AT 40 MPH. RESIDENTS OF OSAGE AND GASCONADE COUNTY SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND BE PREPARED TO SEEK COVER IN A WINDOWLESS INTERIOR ROOM OR BASEMENT. HAGEMEYER
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 1:18 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 42 min |
| Apr 3, 1:35 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 25 min |
| Apr 3, 2:19 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 41 min |
| Apr 3, 3:17 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Washington | 43 min |
| Apr 3, 3:55 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 35 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1989Every severe thunderstorm warning in 1989
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.