Alert archive / Illinois / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 22, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 15, 1990, 5:06 PM CDT for Saint Clair County, Illinois. It was in force for 54 min.
The area
The counties it named.
The facts
- Issued
- May 15, 1990, 5:06 PM CDT (22:06 UTC)
- Expired
- May 15, 1990, 6:00 PM CDT
- In force
- 54 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Saint Clair 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, 10.1 hours before the alert went out and 189 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
- 0 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTL 152204
SVRSTL
ILC163-152300-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
506 PM CDT TUE MAY 15 1990
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHWEST ILLINOIS
...ST CLAIR
AT 500 PM CDT...SEVERE THUNDERSTORMS WERE OCCURRING IN ST LOUIS
COUNTY.
GOLF BALL SIZED HAIL WAS REPORTED NEAR THE INTERSECTION OF I-70 AND
I-270.
THESE STORMS WERE MOVING TO THE EAST AROUND 40 MPH. THE STORMS WILL
BE MOVING INTO ST CLAIR COUNTY ILLINOIS BETWEEN 500 PM AND 515 PM.
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE I#NSIDE 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.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 15, 2:48 PM CDT, 2 hours 18 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 240 PM CDT TUE MAY 15 1990 ..A TORNADO WATCH IS IN EFFECT FOR PARTS OF CENTRAL AND EAST MISSOURI AND MOST OF THE SOUTH THIRD OF ILLINOIS UNTIL 9PM CDT THIS EVENING.. ..A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF MISSOURI EXCEPT THE BOOTHEEL AREA UNTIL 6PM CDT THIS EVENING.. AT 234 PM CDT...A STRONG THUNDERSTORM PRODUCING VERY HEAVY RAINFALL ..STRONG GUSTY WINDS AND POSSIBLE HAIL WAS JUST NORTH OF COLUMBIA MISSOURI..AND ONE JUST EAST OF MEXICO MISSOURI. THESE THUNDERSTORMS WILL PRODUCE VERY HEAVY..WITH THE POSSIBLITY OF STRONG WIND AND HAIL. AN ISOLATED THUNDERSTORM WAS IN SOUTH ILLINOIS JUST TO THE EAST OF SALEM. THESE THUNDERSTORMS HAVE THE POTENTIAL TO PRODUCE TORNADOS..STAY ALERT AND UP TO DATE ON THE LATEST FORECAST. THE SHOWERS AND STORMS WERE MOVING MAINLY TO THE EAST AT 35 TO 40 MILES AN HOUR. FMD
Special weather statement, May 15, 2:53 PM CDT, 2 hours 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 250 PM CDT TUE MAY 15 1990 ...STRONG THUNDERSTORMS WILL ENTER PIKE AND LINCOLN COUNTIES... A TORNADO WATCH IS IN EFFECT FOR EAST CENTRAL MISSOURI UNTIL 9PM. AT 250 PM A LINE OF VERY STRONG THUNDERSTORMS WAS ENTERING WEST PIKE COUNTY. THIS STORM WILL MOVE ACROSS PIKE AND WEST LINCOLN COUNTIES BEFORE 345 PM INCLUDING THE CITY OF BOWLING GREEN. A PERIOD OF HEAVY RAIN...LIGHTNING... STRONG WINDS AND PERHAPS SOME HAIL CAN BE EXPECTED AS THE STORMS PASS. PEOPLE IN PIKE AND LINCOLN COUNTIES SHOULD KEEP ALERT TO THIS RAPIDLY CHANGING WEATHER SITUATION AND BE PREPARED TO SEEK SHELTER IF SEVERE WEATHER THREATENS. FELDT
Special weather statement, May 15, 3:12 PM CDT, 1 hour 54 minutes before
MOZ011-012-152100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 310 PM CDT TUE MAY 15 1990 ...STRONG THUNDERSTORMS WERE MOVING INTO EAST CENTRAL MISSOURI... A TORNADO WATCH IS IN EFFECT FOR EAST CENTRAL MISSOURI AND SOUTHERN ILLINOIS UNTIL 9PM. AT 305 PM...STRONG THUNDERSORMS WERE LOCATED 30 MILES NORTHWEST OF ST. LOUIS EXTENDING FROM BOWLING GREEN IN PIKE COUNTY TO WEST OF WARRENTON IN WARREN COUNTY. BETWEEN 3 AND 4PM...STRONG THUNDERSTORMS CAPABLE OF GUSTY WINDS..VERY HEAVY RAIN...LIGHTNING AND PERHAPS HAIL...WILL BE MOVING THROUGH PIKE..LINCOLN...AND WARREN COUNTIES IN MISSOURI AND PIKE AND CALHOUN COUNTIES IN ILLINOIS. THIS AREA OF STORMS SHOULD MOVE JUST N=ORTH OF ST. LOUIS HOWEVER OTHER STRONG STORMS COULD STILL DEVELOP LATE THIS AFTERNOON OR NIGHT. FELDT
Special weather statement, May 15, 3:40 PM CDT, 1 hour 26 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 340 PM CDT TUE MAY 15 1990 ..A TORNADO WATCH IS IN EFFECT FOR PARTS OF CENTRAL AND EAST MISSOURI AND MOST OF THE SOUTH THIRD OF ILLINOIS UNTIL 9PM CDT THIS EVENING.. ..A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF MISSOURI EXCEPT THE BOOTHEEL AREA UNTIL 6PM CDT THIS EVENING.. AT 333 PM CDT...A NARROW LINE OF STRONG THUNDERSTORMS WITH VERY HEAVY RAIN..STRONG WINDS..AND THE POSSIBILITY OF HAIL EXTENDED FROM THE COLUMBIA/JEFFERSON CITY AREA TO JUST SOUTH OF BOWLING GREEN MISSOURI. OTHER THUNDERSTORMS IN CENTRAL ILLINOIS WERE NEAR SPRINGFIELD AND PITTSFIELD. THE THUNDERSTORMS WERE ON THE SOUTH EDGE OF AN AREA OF RAINSHOWERS STRETCHING FROM COLUMBIA MISSOURI TO DECATUR ILLINOIS. THE SHOWERS AND STORMS WERE MOVING TO THE EAST AT 35 TO 40 MILES AN HOUR. FMD
Special weather statement, May 15, 3:50 PM CDT, 1 hour 16 minutes before
MOZ006-009-010-011-013-014-152145 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 345 PM CDT TUE MAY 15 1990 ...TORNADO WATCH IS IN EFFECT FOR ALL OF CENTRAL MISSOURI THROUGH THIS EVENING... A TORNADO WATCH IS IN EFFECT FOR ALL OF CENTRAL MISSOURI THROUGH THIS EVENING. SHOWERS AND THUNDERSTORMS COVERED MOST OF MID-MISSOURI NORTH OF A LINE FROM SEDALIA TO JEFFERSON CITY TO MONTGOMERY CITY. THE STORMS WILL PRODUCE STRONG WINDS AND FREQUENT LIGHTNING ALONG WITH VERY HEAVY RAIN. THE STORMS WERE MOVING EAST AT 40 MILES AN HOUR. STAY INDOORS IF STORMS ARE OCCURRING IN YOUR AREA. GOEBEL
Special weather statement, May 15, 4:38 PM CDT, 28 minutes before
MOZ011-152200 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 435 PM CDT TUE MAY 15 1990 ...TORNADO WATCH IS IN EFFECT FOR ALL OF CENTRAL MISSOURI THROUGH THIS EVENING... ...SEVERE THUNDERSTORM WARNING CANCELLED FOR MONTGOMERY AND GASCONADE COUNTIES... SEVERE THUNDERSTORMS HAD MOVED OUT OF MONTGOMERY AND GASCONADE COUNTIES. OTHER THUNDERSTORMS CONTINUED IN EAST CENTRAL MISSOURI AND WILL PRODUCE VERY HEAVY RAINS...DANGEROUS LIGHTNING AND POSSIBLY SOME SMALL HAIL AND GUSTY WINDS. A TORNADO WATCH CONTINUES IN EFFECT FOR CENTRAL MISSOURI TONIGHT. LARM
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 4:45 AM CDT | Flash Flood Warning | LSX | Calhoun | 4 hr |
| May 15, 1:20 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Marion | 40 min |
| May 15, 3:54 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey | 51 min |
| May 15, 4:45 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 45 min |
| May 15, 5:54 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 36 min |
| May 15, 6:07 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 53 min |
| May 15, 6:22 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Washington | 38 min |
| May 15, 6:22 PM CDT | Severe Thunderstorm Warning | LSX | Bond | 38 min |
| May 15, 6:22 PM CDT | Severe Thunderstorm Warning | LSX | Randolph, Saint Clair | 68 min |
| May 15, 6:45 PM CDT | Severe Thunderstorm Warning | LSX | Effingham, Fayette | 45 min |
| May 15, 6:49 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 41 min |
| May 15, 6:57 PM CDT | Severe Thunderstorm Warning | LSX | Randolph, Washington | 63 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1990Every severe thunderstorm warning in 1990
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.