Alert archive / Illinois / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 19, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 26, 1989, 8:39 PM CDT for Adams County, Illinois. It was in force for 36 min.
The area
The counties it named.
The facts
- Issued
- Apr 26, 1989, 8:39 PM CDT (01:39 UTC)
- Expired
- Apr 26, 1989, 9:15 PM CDT
- In force
- 36 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Adams 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 00:00Z, 1.7 hours before the alert went out and 154 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
- 1526 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 1669 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTL 270138
SVRSTL
ILC001-270215-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
839 PM CDT WED APR 26 1989
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 915 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN WEST CENTRAL ILLINOIS
...ADAMS
AT 835 PM CDT...WINDS OF 45 TO 50 MPH WERE REPORTED IN QUINCY IN ADAMS
COUNTY. AT 825 PM CDT...A HOME WAS DAMAGED ABOUT 10 MILES NORTH OF
QUINCY.
THESE STORMS WERE MOVING TO THE SOUTHEAST AROUND 40 MPH.
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHwONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.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 26, 7:58 PM CDT, 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 750 PM CDT WED APR 26 1989 ...TORNADO WATCH REMAINS IN EFFECT UNTIL 11 PM FOR EXTREME NORTH MISSOURI... AT 750 PM...THE SHERIFFS OFFICE IN CAHOKA IN CLARK COUNTY IN NORTHEAST MISSOURI REPORTED A STRONG THUNDERSTORM WITH STRONG WINDS. NO REPORTS OF SEVERE WEATHER HAVE BEEN REPORTED TO THE NATIONAL WEATHER SERVICE AT THIS TIME. PERSONS IN CLARK COUNTY SHOULD REMAIN ALE:RT FOR THE POSSIBILITY OF SEVERE WEATHER THIS EVENING. A FEW OF THESE THUNDERSTORMS WERE SEVERE AS THEY MOVED ACROSS IOWA. THE WEATHER OFFICE IN PEORIA REPORTED A WIND GUST TO 69 MPH AT 750 PM.
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 8:47 PM CDT | Severe Thunderstorm Warning | LSX | Brown | 28 min |
| Apr 26, 9:28 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 32 min |
| Apr 26, 10:32 PM CDT | Tornado Warning | LSX | Greene | 28 min |
| Apr 26, 10:47 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 28 min |
| Apr 26, 10:57 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Madison | 33 min |
| Apr 26, 10:57 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 33 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.