Alert archive / Illinois / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 62, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 7, 1990, 6:26 AM CDT for Saint Clair County, Washington County, Illinois. It was in force for 64 min.
The area
The counties it named.
The facts
- Issued
- Jun 7, 1990, 6:26 AM CDT (11:26 UTC)
- Expired
- Jun 7, 1990, 7:30 AM CDT
- In force
- 64 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Saint Clair County, IL, Washington 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 00:00Z, 11.4 hours before the alert went out and 172 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
- 1297 J/kg
- Mixed-layer CIN
- -256 J/kg
- Mixed-layer LCL
- 1044 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 263 m²/s²
- 0-3 km storm-relative helicity
- 413 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 10.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTL 071129
SVRSTL
ILC163-ILC189-071230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
626 AM CDT THU JUN 7 1990
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 730 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHWEST ILLINOIS
...ST CLAIR
...WASHINGTON
AT 625 AM...RADAR INDICATED A SEVERE THUNDERSTORM NEAR
BELLEVILLE...ILLINOIS. THIS STORM WAS MOVING EAST SOUTHEAST AT 25 MPH.
THIS STORM WILL PRODUCE LARGE HAIL...VERY HEAVY RAIN AND POSSIBLY
DAMAGING WIND IN THE WARNED AREA.
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STA_ND 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.
TUCKERWhat 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 7, 3:38 AM CDT, 2 hours 48 minutes before
MOZ011-012-ILZ009-010-070930- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 336 AM CDT THU JUN 7 1990 ...A FLASH FLOOD WARNING IS IN EFFECT FOR THE MISSOURI COUNTIES OF ST LOUIS AND ST LOUIS CITY...ST CHARLES AND WARREN AND THE ILLINOIS COUNTY OF ST CLAIR TIL 830AM...MISSOURI COUNTY OF LINCOLN TIL 645AM... ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT ACROSS CENTRAL MISSOURI INTO SOUTHERN ILLINOIS UNTIL 4 AM CDT... ...A FLASH FLOOD WATCH IS IN EFFECT TONIGHT ACROSS CENTRAL MISSOURI... AT 328 AM CDT...THUNDERSTORMS WITH VERY HEAVY DOWNPOURS...STRONG GUSTY WINDS...FREQUENT DANGEROUS CLOUD TO GROUND LIGHTNING AND PEA SIZE HAIL ...WERE OCCURRING IN A CLUSTER FROM AROUND ST LOUIS TO 80 MILES NORTHWEST OF ST LOUIS AT COLUMBIA MISSOURI. THESE STORMS ARE CAUSING FLOODING...ESPECIALLY IN LOW LYING AREAS...RUSH HOUR MOTORIST SHOULD NOT ATTEMPT TO CROSS FLOWING WATERS OVER ROADWAYS AND BRIDGES. REMAIN IN DOORSs IF POSSIBLE UNTIL THE LIGHTNING FREQUENCE HAS SLOWED. STORMS...SOME STRONG...WILL CONTINUE IN PARTS OF CENTRAL MISSOURI INTO SOUTHERN ILLINOIS INTO LATE TODAY. END
Special weather statement, Jun 7, 4:21 AM CDT, 2 hours 5 minutes before
MOZALL-070945- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 415 AM CDT THU JUN 7 1990 ...SEVERE THUNDERSTORM WATCH HAS EXPIRED FOR ALL OF MISSOURI... AT 415 AM CDT...STRONG THUNDERSTORMS CONTINUED IN AN EAST-WEST BAND ACROSS CENTRAL MISSOURI. THE THREAT OF SEVERE WEATHER HAS DIMINISHED THOUGH...AND NO SEVERE WEATHER WATCHES ARE IN EFFECT. A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL NOON FOR A BAND THROUGH CENTRAL MISSOURI...WHICH INCLUDES THE ST JOSEPH...KANSAS CITY... COLUMBIA...AND ST LOUIS AREAS.
Special weather statement, Jun 7, 4:30 AM CDT, 1 hour 56 minutes before
MOZ006-009-010-011-071030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 430 AM CDT THU JUN 7 1990 ...FLASH FLOOD WATCH IS IN EFFECT FOR MID-MISSOURI UNTIL NOON... AT 430 AM THUNDERSTORMS WITH VERY HEAVY RAIN WERE IN A 20 MILE WIDE BAND FROM 40 MILES NORTH OF SEDALIA...THROUGH COLUMBIA...TO MONTGOMERY CITY. THE BAND ITSELF WAS NEARLY STATIONARY AS STORMS MOVED EAST THROUGH IT. THE STORMS WILL PRODUCE FREQUENT LIGHTNING...GUSTY WINDS AND SMALL HAIL. FLOODING OF LOW SPOTS WILL OCCUR THROUGHOUT THIS AREA. SLOW DOWN IF DRIVING ON INTERSTATE 70 OR ON ANY ROAD IN THE COUNTIES OF SALINE...HOWARD...BOONE...CALLAWAY AND MONTGOMERY. WATCH FOR AND STAY CLEAR OF FLOWING WATER. GOEBEL
Special weather statement, Jun 7, 4:36 AM CDT, 1 hour 50 minutes before
MOZ010-011-012-ILZ011-012-071030- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 436 AM CDT THU JUN 7 1990 ...A FLASH FLOOD WARNING IS IN EFFECT FOR THE MISSOURI COUNTIES OF ST LOUIS AND ST LOUIS CITY...ST CHARLES AND WARREN AND THE ILLINOIS COUNTY OF ST CLAIR TIL 830AM...MISSOURI COUNTY OF LINCOLN TIL 645AM... ...A FLASH FLOOD WATCH IS IN EFFECT ACROSS CENTRAL MISSOURI TIL NOON... AT 427 AM CDT...THUNDERSTORMS WITH VERY HEAVY DOWNPOURS...STRONG GUSTY WINDS...FREQUENT DANGEROUS CLOUD TO GROUND LIGHTNING AND PEA SIZE HAIL ...WERE OCCURRING IN A LINE FROM AROUND 60 MILES SOUTHEAST OF ST LOUIS AT MT VERNON ILLINOIS THROUGH ST LOUIS TO COLUMBIA MISSOURI. THE STORMS WERE CAUSING FLOODING...ESPECIALLY IN LOW LYING AREAS. RUSH HOUR MOTORIST SHOULD PLAN ON EXTRA DRIVING TIME AND DO NOT ATTEMPT CROSSING FLOWING WATERS OVER ROADWAYS AND BRIDGES. REMAIN IN DOORS IF POSSIBLE UNTIL THE LIGHTNING FREQUENCY HAS SLOWED. STORMS...SOME STRONG...WILL CONTINUE IN PARTS OF THE NORTHERN HALF OF MISSOURI INTO THE SOUTHERN THIRD OF ILLINOIS UNTIL LATE TODAY. END
Special weather statement, Jun 7, 5:38 AM CDT, 48 minutes before
MOZ010-011-012-ILZ011-012-071130- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 537 AM CDT THU JUN 7 1990 ...A FLASH FLOOD WARNING IS IN EFFECT FOR THE MISSOURI COUNTIES OF ST LOUIS AND ST LOUIS CITY...ST CHARLES AND WARREN AND THE ILLINOIS COUNTY OF ST CLAIR TIL 830AM...MISSOURI COUNTY OF LINCOLN TIL 645AM... ...A FLASH FLOOD WATCH IS IN EFFECT ACROSS CENTRAL MISSOURI TIL NOON... AT 528 AM CDT...THUNDERSTORMS WITH VERY HEAVY DOWNPOURS...STRONG GUSTY WINDS...FREQUENT DANGEROUS CLOUD TO GROUND LIGHTNING AND PEA SIZE HAIL ...WERE OCCURRING IN A CLUSTER FROM 40 MILES SOUTHEAST OF ST LOUIS AT OKAWVILLE ILLINOIS THROUGH ST LOUIS TO COLUMBIA MISSOURI. THE STORMS WERE CAUSING FLOODING...ESPECIALLY IN LOW LYING AREAS. RUSH HOUR MOTORIST SHOULD PLAN ON EXTRA DRIVING TIME AND DO NOT ATTEMPT CROSSING FLOWING WATERS OVER ROADWAYS AND BRIDGES. REMAIN IN DOORS IF POSSIBLE UNTIL THE LIGHTNING FREQUENCY HAS SLOWED. STORMS...SOME STRONG WITH HEAVY DOWNPOURS...FREQUENT DANGEROUS LIGHTNING AND MAINLY PEA TO MARBLE SIZE HAIL...WILL CONTINUE IN MOST OF THE NORTHERN HALF OF MISSOURI AND THE SOUTHERN THIRD OF ILLINOIS UNTIL LATE TODAY. SOME SMALL RIVERS AND STREAMS IN PARTS OF NORTHERN MISSOURI AND SOUTHERN ILLINOIS WILL FLOOD TO NEAR OR ABOVE FLOOD. END
Special weather statement, Jun 7, 5:42 AM CDT, 44 minutes before
MOZ006-009-010-011-071200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 540 AM CDT THU JUN 7 1990 ...FLASH FLOOD WATCH IS IN EFFECT FOR MID-MISSOURI UNTIL NOON... AT 540 AM THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUED FROM 20 MILES NORTHWEST OF COLUMBIA TO 50 MILES EAST OF COLUMBIA. THERE WAS LITTLE MOVEMENT TO THE BAND SO RAIN WILL ACCUMULATE SIGNIFICANTLY IN THE AREA. THE STORMS WILL ALSO PRODUCE FREQUENT LIGHTNING AND GUSTY WINDS. ALLOW MORE TIME TO REACH YOUR DESTINATION AS SOME ROADS MAY BE FLOODED. STAY AWAY FROM FLOWING WATER WHETHER DRIVING OR WALKING ANYTIME TODAY. GOEBEL
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 1:20 AM CDT | Severe Thunderstorm Warning | LSX | Effingham, Fayette | 40 min |
| Jun 7, 3:21 AM CDT | Flash Flood Warning | LSX | Saint Clair | 5 hr |
| Jun 7, 6:43 AM CDT | Severe Thunderstorm Warning | LSX | Perry, Randolph | 47 min |
| Jun 7, 8:40 AM CDT | Flash Flood Warning | LSX | Monroe | 9 hr |
| Jun 7, 8:40 AM CDT | Flash Flood Warning | LSX | Saint Clair | 9 hr |
| Jun 7, 3:40 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 65 min |
| Jun 7, 4:19 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 56 min |
| Jun 7, 4:19 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 41 min |
| Jun 7, 4:19 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 41 min |
| Jun 7, 4:54 PM CDT | Severe Thunderstorm Warning | LSX | Bond | 36 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.