Alert archive / Illinois / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 91, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Sep 9, 1990, 11:30 PM CDT for Monroe County, Randolph County, Illinois. It was in force for 30 min.
The area
The counties it named.
The facts
- Issued
- Sep 9, 1990, 11:30 PM CDT (04:30 UTC)
- Expired
- Sep 10, 1990, 12:00 AM CDT
- In force
- 30 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Monroe County, IL, Randolph 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, 4.5 hours before the alert went out and 167 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
- 638 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1219 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTL 100433
SVRSTL
ILC133-157-100500-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1130 PM CDT SUN SEP 9 1990
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL MIDNIGHT CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTHWEST ILLINOIS
...SOUTHERN MONROE...RANDOLPH
A LINE OF SEVERE STORMS AT 1125 PM WERE MOVING INTO SOUTHERN MONROE
AND WESTERN RANDOLPH COUNTY...OR ABOUT 30 TO 40 MILES SOUTHEAST OF
ST LOUIS.
THESE STORMS...WITH LARGE HAIL...DAMAGING WINDS...AND VERY HEAVY
RAIN...WILL MOVE THROUGH THE NEW ATHENS...EVANSVILLE AND SPARTA AREAS
BETWEEN 1130 PM AND MIDNIGHT.
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE 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 CROSSING^S.
EISEWhat 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, Sep 9, 6:35 PM CDT, 4 hours 55 minutes before
MOZ010-014-100035- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 636 PM CDT SUN SEP 9 1990 ...STRONG THUNDERSTORMS CONTINUE IN CENTRAL MISSOURI... AT 625 PM CDT...THUNDERSTORMS WITH VERY HEAVY RAINS...STRONG WINDS AND POSSIBLY HAIL WERE OCCURRING... OVER THE LAKE OF THE OZARKS IN CAMDEN COUNTY MISSOURI AND JUST NORTHWEST OF JEFFERSON CITY MISSOURI AND 10 MILES NORTHWEST OF JEFFERSON CITY AT CALIFORNIA MISSOURI AND 13 MILES SOUTH OF JEFFERSON CITY NEAR META MISSOURI. THESE STORMS WILL AFFECT THE MISSOURI COUNTIES OF CAMDEN...SOUTHERN MORGAN...MONITEAU...COLE...OSAGE AND SOUTHWEST CALLAWAY BETWEEN 635 TO 730PM. PERSONS IN THESE COUNTIES SHOULD BE ALERT TO THESE STORMS AF THEY APPROACH AND BE PREPARED TO PROTECT LIFE AND PROPERTY. REPORT ANY SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT AGENCY. THESE STORMS SHOULD DECREASE IN INTENSITY AFTER SUNSET. END
Special weather statement, Sep 9, 6:52 PM CDT, 4 hours 38 minutes before
MOZ010-014-100035- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTION NATIONAL WEATHER SERVICE ST LOUIS MO 636 PM CDT SUN SEP 9 1990 ...STRONG THUNDERSTORMS CONTINUE IN CENTRAL MISSOURI... AT 625 PM CDT...THUNDERSTORMS WITH VERY HEAVY RAINS...STRONG WINDS AND POSSIBLY HAIL WERE OCCURRING... OVER THE LAKE OF THE OZARKS IN CAMDEN COUNTY MISSOURI AND JUST NORTHWEST OF JEFFERSON CITY MISSOURI AND 10 MILES NORTHWEST OF JEFFERSON CITY AT CALIFORNIA MISSOURI AND 13 MILES SOUTH OF JEFFERSON CITY NEAR META MISSOURI. THESE STORMS WILL AFFECT THE MISSOURI COUNTIES OF CAMDEN...SOUTHERN MORGAN...MONITEAU...COLE...OSAGE AND SOUTHWEST CALLAWAY BETWEEN 635 TO 730PM AS THEY MOVE EAST AT 10 TO 15 MILES AN HOUR. PERSONS IN THESE COUNTIES SHOULD BE ALERT TO THESE STORMS AF THEY APPROACH AND BE PREPARED TO PROTECT LIFE AND PROPERTY. REPORT ANY SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT AGENCY. THESE STORMS SHOULD DECREASE IN INTENSITY AFTER SUNSET. END
Special weather statement, Sep 9, 7:06 PM CDT, 4 hours 24 minutes before
MOZ014-100100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 700 PM CDT SUN SEP 9 1990 ...THUNDERSTORMS CONTINUE AROUND THE LAKE OF THE OZARKS... SCATTERED STRONG THUNDERSTORMS CONTINUED AROUND THE LAKE OF THE OZARKS AND SOUTH CENTRAL MISSOURI. THE STORMS HAD DIMINSIHED SINCE 6PM AND WERE NEARLY STATIONARY. THE THUNDERSTORMS WILL CONTINUE TO DIMINISH BETWEEN 7 AND 8PM AND WILL PROBABLY BE GONE BY 9PM. NO FURTHER DEVELOPMENT IS EXPECTED OVERNIGHT. THERE WILL BE CHANCES OF THUNDERSHOWERS IN THE SAME AREA AS WELL AS SPREADING OVER OTHER PARTS OF CENTRAL MISSOURI MONDAY AFTERNOON. LARM
Special weather statement, Sep 9, 9:17 PM CDT, 2 hours 13 minutes before
MOZ012-100300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 910 PM CDT SUN SEP 10 1990 ...A STRONG THUNDERSTORM WILL MOVE ACROSS JEFFERSON COUNTY... AT 910 PM...A STRONG THUNDERSTORM WAS LOCATED 20 MILES SOUTHWEST OF ST. LOUIS ALONG THE FRANKLIN...JEFFERSON COUNTY LINE. STRONG GUSTY WINDS WERE REPORTED IN THE DESOTO AREA OF JEFFERSON COUNTY. BETWEEN 915 AND 10 PM...THIS STORM WILL MOVE ACROSS MUCH OF JEFFERSON COUNTY PRODyUCING A PERIOD OF GUSTY WINDS...HEAVY RAINFALL AND SOME LIGHTNING. FELDT
Special weather statement, Sep 9, 9:35 PM CDT, 1 hour 55 minutes before
MOZ012-100330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 930 PM CDT SUN SEP 10 1990 ...A STRONG THUNDERSTORM WILL MOVE ACROSS CENTRAL JEFFERSON COUNTY... AT 930 PM...A STRONG THUNDERSTORM WAS LOCATED 20 MILES SOUTHWEST OF ST. LOUIS IN WEST CENTRAL JEFFERSON COUNTY. BETWEEN 930 AND 10 PM THIS STORM WILL MOVE EAST ACROSS CENTRAL JEFFERSON COUNTY NEAR THE COMMUNITIES OF HILLSBORO AND DESOTO. THIS STORM COULD CONTAIN VERY STRONG WINDS...HEAVY RAIN AND POSSIBLY HAIL AS IT MOVES EAST AT 20 MPH. PEOPLE IN CENTRAL JEFFERSON COUNTY SHOULD BE ALERT TO THIS RAPIDLY CHANGING WEATHER SITUATION. FELDT
Local storm report, Sep 9, 10:34 PM CDT, 56 minutes before
MOZ012-101500- STORM REPORT NATIONAL WEATHER SERVICE ST LOUIS MO 1030 PM CDT SUN SEP 9 1990 SEVERE STORM REPORTS - JEFFERSON COUNTY MISSOURI TIME LOCATION EVENT ---- " -------- -------------- 1007 PM JUST NORTH OF DESOTO GOLF BALL SIZE HAIL EISE
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 10:15 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 45 min |
| Sep 9, 10:46 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 44 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.