Alert archive / Illinois / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 3, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Mar 17, 1989, 4:54 PM CST for Jersey County, Illinois. It was in force for 36 min.
The area
The counties it named.
The facts
- Issued
- Mar 17, 1989, 4:54 PM CST (22:54 UTC)
- Expired
- Mar 17, 1989, 5:30 PM CST
- In force
- 36 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Jersey 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
Peoria Regional, IL (KPIA), launched 12:00Z, 10.9 hours before the alert went out and 188 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
- 1272 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 256 m²/s²
- 0-3 km storm-relative helicity
- 319 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 172255
SVRSTL
ILC083-172330-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
454 PM CST FRI MAR 17 1989
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHWEST ILLINOIS
...JERSEY
AT 4.50 PM RADAR INDICATED A SEVERE THUNDERSTORM JUST SOUTHWEST
JERSEYVILLE ILLINOIS. THE STORM IS ABOUT 25 MILES NORTHWEST OF ST.
LOUIS. THE STORM IS MOVING TO THE NORTHEAST AT 50 MPH. PEOPLE IN
JERSEYVILLE SHOULD BE PREPARED FOR LARGE HAIL AND DAMAGING WINDS
BETWEEN 5.00 AND 5.15 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. DO 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.
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, Mar 17, 3:16 PM CST, 1 hour 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 315 PM CST FRI MAR 17 1989 ...THUNDERSTORMS DEVELOPING OVER CENTRAL MISSOURI... AT 300 PM THUNDERSTORMS WERE DEVELOPING OVER EAST CENTRAL MISSOURI IN A 10 MILES WIDE LINE FROM 40 MILES NORTHEAST OF COLUMBIA TO 15 MILES EAST OF JEFFERSON CITY. THE STRONGEST STORM WAS OVER LINN IN OSAGE COUNTY...15 MILES EAST OF JEFFERSON CITY. THE OSAGE COUNTY SHERIFF REPORTED PEA SIZED HAIL WIwTH THIS STORM AT 305 PM. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR. PERSONS IN THE AREA OF THESE STORMS SHOULD BE ALERT FOR LARGE HAIL AND VERY HEAVY. LISTEN FOR LATER STATEMENTS. MET
Special weather statement, Mar 17, 3:17 PM CST, 1 hour 37 minutes before
SPECIAL WEATHER STATEMENT...CORRECTION TO LAST PARAGRAPH... NATIONAL WEATHER SERVICE COLUMBIA MO 315 PM CST FRI MAR 17 1989 ...THUNDERSTORMS DEVELOPING OVER CENTRAL MISSOURI... AT 300 PM THUNDERSTORMS WERE DEVELOPING OVER EAST CENTRAL MISSOURI IN A 10 MILES WIDE LINE FROM 40 MILES NORTHEAST OF COLUMBIA TO 15 MILES EAST OF JEFFERSON CITY. THE STRONGEST STORM WAS OVER LINN IN OSAGE COUNTY...15 MILES EAST OF JEFFERSON CITY. THE OSAGE COUNTY SHERIFF REPORTED PEA SIZED HAIL WITH THIS STORM AT 305 PM. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR. PERSONS IN THE AREA OF THESE STORMS SHOULD BE ALERT FOR LARGE HAIL AND VERY HEAVY RAIN. LISTEN FOR LATER STATEMENzTS. MET
Special weather statement, Mar 17, 3:24 PM CST, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 325 PM CST FRI MAR 17 1989 ...STRONG THUNDERSTORM IN EAST CENTRAL MISSOURI... AT 320 PM RADAR INDICATED A STRONG THUNDERSTORM IN EAST CENTRAL MISSOURI JUST WEST OF MONTGOMERY CITY OR 30 MILES EAST NORTHEAST OF COLUMBIA. THE STORM IS MOVING TO THE NORTHEAST AT 50 MPH. HAIL AND STRONG WINDS ARE EXPECTED IN MONTGOMERY COUNTY AS THE STORM MOVES NEAR MONTGOMERY CITY AND WELLSVILLE BETWEEN 330 AND 4 PM. HAMILTON
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 4:28 PM CST | Severe Thunderstorm Warning | LSX | Calhoun | 47 min |
| Mar 17, 5:44 PM CST | Severe Thunderstorm Warning | LSX | Madison | 46 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.