Alert archive / Illinois / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 40, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 25, 1989, 12:54 AM CDT for Pike County, Scott County, Illinois. It was in force for 36 min. 3 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 25, 1989, 12:54 AM CDT (05:54 UTC)
- Expired
- May 25, 1989, 1:30 AM CDT
- In force
- 36 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Pike County, IL, Scott County, IL
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 25, 1:00 AM CDT | Thunderstorm Wind 0 | Scott, IL | |
| May 25, 1:20 AM CDT | Thunderstorm Wind 0 | Pike, IL | |
| May 25, 1:20 AM CDT | Thunderstorm Wind 0 | Scott, IL |
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
Peoria Regional, IL (KPIA), launched 00:00Z, 5.9 hours before the alert went out and 147 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
- NaN m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 230 m²/s²
- 0-3 km storm-relative helicity
- 347 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 250559 SVRSTL ILC149-171-250630- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1254 AM CDT THU MAY 25 1989 THE NATIONAL WEATHER SERVICE IN ST L
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, May 24, 7:05 PM CDT, 5 hours 49 minutes before
SPECIAL WEATHER STATEMENT AND MISSOURI WEATHER SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 700 PM CDT WED MAY 24 1989 ...SEVERE WEATHER POTENTIAL FOR MISSOURI... A TORNADO WATCH HAS BEEN POSTED FOR A LARGE PART OF NORTHERN MISSOURI UNTIL MIDNIGHT. AT 7 PM A CLUSTER OF THUNDERSTORMS...SOME SEVERE... WAS IN SOUTHWEST IOWA...JUST NORTH OF THE MISSOURI STATE LINE. THESE STORMS WERE MOVING TO THE EAST NORTHEAST...BUT ADDITIONAL DEVELOPMENT IS EXPECTED OVER NORTHWEST THROUGH NORTH CENTRAL MISSOURI EARLY TONIGHT. ELSEWHERE IN MISSOURI JUST BEFORE 7 PM SKIES WERE PARTLY TO MOSTLY CLOUDY. ISOLATED THUNDERSHOWERS OVER SOUTHEAST MISSOURI EARLIER THIS EVENING HAVE DIMINISHED AND MOVED INTO SOUTHERN ILLINOIS. TEMPERATURES AROUND MISSOURI AT 7 PM WERE IN THE UPPER 70S TO MID 80S. CONDITIONS REMAIN FAVORABLE FOR THE REDEVELOPMENT OF MORE THUNDERSTORMS IN MISSOURI LATER TONIGHT...ESPECIALLY OVER THE NORTH AND WEST PARTS OF THE STATE...THEN INTO THURSDAY OVER THE SOUTHEAST. THE STORMS ARE EXPECTED AHEAD OF A COLD FRONT THAT WAS JUST BEGINNING TO PUSH INTO THE FAR NORTHWEST TIP OF MISSOURI THIS EVENING FROM THE PLAINS. THE FRONT WILL MAKE ITS WAY SOUTHEAST THROUGH THE STATE LATER TONIGHT AND THURSDAY...FOLLOWED BY SOME COOLER AND DRIER AIR THAT WILL PREVAIL TO THE END OF THE WEEK. FAIR WEATHER IS EXPECTED FOR AT LEAST THE FIRST PART OF THE UPCOMING HOLIDAY WEEKEND...WITH A CHANCE FOR MORE THUNDERSTORMS ON MONDAY. MCCARTHY
Special weather statement, May 24, 9:54 PM CDT, 3 hours before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 950 PM CDT WED MAY 24 1989 ...TORNADO WATCH FOR PARTS OF NORTHERN AND WEST CENTRAL MISSOURI INTO WEST CENTRAL ILLINOIS... AT 940 PM A BAND OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN... STRONG WINDS AND POSSIBLY HAIL...EXTENDED FROM LANCASTER MISSOURI... ABOUT 20 MILES NORTH OF KIRKSVILLE...TO NEAR KANSAS CITY. THE STORMS WERE MOVING TO THE EAST AT 40 MPH AND WILL CONTINUE TRACKING ACROSS PARTS OF NORTHEAST AND NORTH CENTRAL MISSOURI FROM 10 PM TO MIDNIGHT. A FEW OF THESE STORMS SHOULD REACH THE KIRKSVILLE AREA BY 1030 PM. MCCARTHY
Special weather statement, May 25, 12:31 AM CDT, 23 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 1230 AM CDT THU MAY 25 1989 ...TORNADO WATCH FOR PARTS OF NORTHERN AND WEST CENTRAL MISSOURI INTO WEST CENTRAL ILLINOIS... AT 1230AM...A LINE OF VERY STRONG THUNDERSTORMS EXTENDED ACROSS PORTIONS OF NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS. THE LEADING EDGE OF THIS LINE EXTENDED FROM NEAR PITTSFIELD IN PIKE COUNTY ILLINOIS..TO HANNIBAL TO MEXICO MISSOURI. THIS IS ABOUT 50 MILES TO THE NORTHWEST OF ST. LOUIS. THE STRONGEST STORMS IN THIS LINE WERE PRODUCING VERY HEAVY RAIN.. UP TO AN INCH PER HOUR..STRONG GUSTY WINDS..AND PERHAPS SOME HAIL. THE LINE WAS DROPPING EAST SOUTHEAST AT 25 MPH AND SHOULD MOVE ACROSS BROWN SCOTT AND PIKE COUNTIES IN ILLINOIS AS WELL AS PIKE AND RALLS COUNTIES IN MISSOURI BETWEEN 1230 AND 130 THIS MORNING. THESE STORMS SHOULD NEAR THE ST LOUIS AREA AROUND 2 OR 3AM THIS MORNING. A TORNADO WATCH CONTINUES FORp PORTIONS OF CENTRAL MISSOURI AND WEST CENTRAL ILLINOIS UNTIL 6AM. ALL WATCHES ARE NOW CANCELLED FROM 30 MILES NW OF HANNIBAL..TO 30 MILES S OF KANSAS CITY. FELDT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 1:15 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene | 45 min |
| May 25, 8:50 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Pike | 55 min |
| May 25, 8:50 AM CDT | Severe Thunderstorm Warning | LSX | Greene | 55 min |
| May 25, 9:52 AM CDT | Severe Thunderstorm Warning | LSX | Greene | 38 min |
| May 25, 10:59 AM CDT | Severe Thunderstorm Warning | LSX | Monroe | 31 min |
| May 25, 12:46 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene | 44 min |
| May 25, 2:33 PM CDT | Tornado Warning | LSX | Effingham, Fayette | 27 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.