Alert archive / Illinois / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 61, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 1, 1989, 4:00 PM CDT for Fayette County, Illinois. It was in force for 35 min.
The area
The counties it named.
The facts
- Issued
- Jun 1, 1989, 4:00 PM CDT (21:00 UTC)
- Expired
- Jun 1, 1989, 4:35 PM CDT
- In force
- 35 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Fayette 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, 9.0 hours before the alert went out and 192 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
- 1726 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 784 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.5
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Jun 1, 12:41 PM CDT, 3 hours 19 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 1240 PM CDT THU JUN 1 1989 ...ISOLATED STRONG STORMS IN SOUTHEAST MISSOURI AND SOUTHERN ILLINOIS... AT 1229 PM CDT...THUNDERSTORMS WITH VERY HEAVY RAIN AND STRONG GUSTY WINDS WERE OCCURRING... 50 MILES SOUTH OF ST LOUIS IN THE FLAT RIVER/FARMINGTON MISSOURI AREAS 65 MILES EAST OF ST LOUIS AT MT VERNON ILLINOIS THE STORMS WERE MOVING TO THE EAST AT 30 MILES AN HOUR. NO SEVERE WEATHER HAS BEEN REPORTED AS OF 1230PM. ISOLATED STORMS CONTINUED TO DEVELOP IN SOUTHEAST MISSOURI INTO SOUTHERN ILLINOIS. SHOWERS CONTINUED IN A LARGE PART OF NORTHEAST MISSOURI INTO THE NORTHERN HALF OF ILLINOIS. THE RAIN WAS MOVING TO THE NORTHEAST AT 35 MILES AN HOUR. RADAR NOWCAST...STORMS...SOME STRONG...WILL CONTINUE TO DEVELOP IN THE SOUTHEAST QUARTER OF MISSOURI INTO THE SOUTHERN HALF OF ILLINOIS THIS AFTERNOON. SHOWERS WILL CONTINUE ALONG THE COLD FRONT IN MOST OF THE NORTHWESTERN HALF OF MISSOURI INTO THE NORTHERN HALF OF ILLINOIS THROUGH THIS AFTERNOON. END
Special weather statement, Jun 1, 2:57 PM CDT, 1 hour 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 255 PM CDT THU JUN 1 1989 ...SEVERE THUNDERSTORM WATCH UNTIL 9 PM PARTS OF EAST CENTRAL AND SOUTHEAST MISSOURI INTO CENTRAL AND SOUTH ILLINOIS... JUST BEFORE 3 PM A THUNDERSTORM WITH EXTREMELY HEAVY RAIN...STRONG WIND AND SMALL HAIL WAS OVER THE CITY OF ST LOUIS...EXTENDING INTO WEST AND SOUTHWEST PARTS OF ST LOUIS COUNTY. THE HEAVY RAIN FROM THIS STORM WILL CAUSE SOME TEMPORARY FLOODING OF STREETS AND LOW LYING AREAS. MOTORISTS SHOULD BE EXTREMELY CAUTIOUS. THE STORM WAS MOVING EAST AT 30 MPH. IT WAS PART OF A BAND OF STORMS EXTENDING FROM WEST CENTRAL ILLINOIS THROUGH THE ST LOUIS AREA INTO SOUTHEAST MISSOURI...ALL THE WAY TO WEST PLAINS MISSOURI. MCCARTHY
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 3:05 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis | 40 min |
| Jun 1, 3:28 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair, Washington | 47 min |
| Jun 1, 3:28 PM CDT | Severe Thunderstorm Warning | LSX | Perry, Randolph | 47 min |
| Jun 1, 3:35 PM CDT | Severe Thunderstorm Warning | LSX | Bond | 40 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.