Alert archive / Illinois / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 8, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 27, 1990, 3:37 PM CDT for Calhoun County, Illinois. It was in force for 53 min. 1 report 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
- Apr 27, 1990, 3:37 PM CDT (20:37 UTC)
- Expired
- Apr 27, 1990, 4:30 PM CDT
- In force
- 53 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Calhoun 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 |
|---|---|---|---|
| Apr 27, 3:55 PM CDT | Thunderstorm Wind 52 | Calhoun, 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
Paducah/Barkley, KY (KPAH), launched 12:00Z, 8.6 hours before the alert went out and 290 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
- 1105 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -61 m²/s²
- 0-3 km storm-relative helicity
- -12 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 272045 COR
SVRSTL
ILC013-272130-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
337 PM CDT FRI APR 27 1990
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 430 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHWEST ILLINOIS
...CALHOUN
AT 335 PM...RADAR INDICADTED A SEVERE THUNDERSTORM IN EXTREME
EASTERN LINCOLN COUNTY...MISSOURI. THIS STORM WAS CROSSING THE
MISSISSIPPI RIVER. LARGE HAIL AND DAMAGING WINDS WILL ACCOMPANY HEAVY
RAIN WITH THIS STORM.
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONE0S
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, Apr 27, 2:05 PM CDT, 1 hour 32 minutes before
MOZ011-012-271945- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 203 PM CDT FRI APR 27 1990 ...A VERY STRONG THUNDERSTORM WILL PASS NEAR NEW HAVEN...MISSOURI... AT 200 PM...RADAR INDICATED A VERY STRONG STORM ABOUT 10 MILES SOUTHWEST OF NEW HAVEN...OR ABOUT 40 MILES WEST OF ST LOUIS. THE STORM WAS MOVING NORTH NORTHEAST AT 40 MPH. IT WILL PASS OVER OR JUST WEST OF NEW HAVEN AT AROUND 220
Special weather statement, Apr 27, 2:07 PM CDT, 1 hour 30 minutes before
MOZ011-012-271945- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 203 PM CDT FRI APR 27 1990 ...A VERY STRONG THUNDERSTORM WILL PASS NEAR NEW HAVEN...MISSOURI... AT 200 PM...RADAR INDICATED A VERY STRONG STORM ABOUT 10 MILES SOUTHWEST OF NEW HAVEN...OR ABOUT 40 MILES WEST OF ST LOUIS. THE STORM WAS MOVING NORTH NORTHEAST AT 40 MPH. IT WILL PASS OVER OR JUST WEST OF NEW HAVEN AT AROUND 220 PM. IT WILL PASS THROUGH WARREN COUNTY BETWEEN 220 AND 3 PM. BRIEF HEAVY RAIN...SMALL HAIL AND STRONG GUSTY WINDS ARE EXPECTED WITH THE STORM. TUCKER
Special weather statement, Apr 27, 2:53 PM CDT, 44 minutes before
MOZ006-009-010-014-272045 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 250 PM CDT FRI APR 27 1990 ...SHOWERS AND THUNDERSHOWERS CONTINUE IN CENTRAL MISSOURI... AT 245 PM...RAINSHOWERS AND SOME ISOLATED THUNDERSHOWERS WERE WIDESPREAD OVER ALL OF CENTRAL MISSOURI. SOME SHOWERS WERE BRIEFLY HEAVY JUST WEST OF COLUMBIA NEAR BOONVILLE AND JUST SOUTHEAST OF SEDALIA. THE SHOWERS WERE MOVING TO THE NORTH AT 35 MPH. SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER CENTRAL MISSOURI THE REST OF THIS AFTERNOON AND INTO TONIGHT. SOME OF THE RAIN WILL BE HEAVY AT TIMES AND SOME SMALL HAIL MAY FALL ALSO. LARM
Special weather statement, Apr 27, 2:57 PM CDT, 40 minutes before
MOZ007-011-012-017-018-272200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 250 PM CDT FRI APR 27 1990 ...A LINE OF THUNDERSTORMS WILL MOVE OVER THE ST LOUIS AREA... AT 245 PM...RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDED FROM 70 MILES SOUTHWEST OF ST LOUIS TO 60 MILES NORTH OF ST LOUIS. THE STORMS WERE MOVING NORTH NORTHEAST AT 40 MPH. THESE STORMS WILL PASS THROUGH ST LOUIS METROPOLITAN AREA BETWEEN 330 AND 430 PM. THEY WILL PRODUCE BRIEF HEAVY RAIN...POSSIBLY SMALL HAIL AND GUSTY WINDS. TUCKER
Special weather statement, Apr 27, 3:28 PM CDT, 9 minutes before
MOZ007-011-012-017-018-272200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 325 PM CDT FRI APR 27 1990 ...A VERY LARGE AND STRONG THUNDERSTORM IS MOVING THROUGH LINCOLN COUNTY ILLINOIS. AT 320 PM...RADAR INDICATED A VERY LARGE AND STRONG THUNDERSTORM FROM ABOUT 12 MILES NORTHWEST OF ST CHARLES TO 30 MILES NORTHWEST OF ST CHARLES. THIS STORM WILL PRODUCE SOME VERY HEAVY RAIN ...HAIL AND STRONG GUSTY WINDS AS IT PASSES THROUGH LINCOLN AND PIKE COUNTIES...MISSOURI AND INTO JERSEY AND CALHOUN COUNTIES ILLINOIS BETWEEN 330 AND 430 PM. STRONG THUNDERSTORMS WILL BE MOVING THROUGH ALL OF THE ST LOUIS METROPOLITAN AREA...INCLUDING ST CHARLES COUNTY...MISSOURI AND THE ILLINOIS COUNTIES OF ST. CLAIR...MADISON...JERSEY AND MONROE BETWEEN 330 AND 430 PM. BRIEF HEAVY RAIN...SMALL HAIL AND WIND GUSTS 40 TO 50 MPH ARE EXPECTED WITH THE STORMS. TUCKER
Special weather statement, Apr 27, 3:29 PM CDT, 8 minutes before
MOZ007-011-012-017-018-272200- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE ST LOUIS MO 325 PM CDT FRI APR 27 1990 ...A VERY LARGE AND STRONG THUNDERSTORM IS MOVING THROUGH LINCOLN COUNTY...MISSOURI... AT 320 PM...RADAR INDICATED A VERY LARGE AND STRONG THUNDERSTORM FROM ABOUT 12 MILES NORTHWEST OF ST CHARLES TO 30 MILES NORTHWEST OF ST CHARLES. THIS STORM WILL PRODUCE SOME VERY HEAVY RAIN ...HAIL AND STRONG GUSTY WINDS AS IT PASSES THROUGH LINCOLN AND PIKE COUNTIES...MISSOURI AND INTO JERSEY AND CALHOUN COUNTIES ILLINOIS BETWEEN 330 AND 430 PM. STRONG THUNDERSTORMS WILL BE MOVING THROUGH ALL OF THE ST LOUIS METROPOLITAN AREA...INCLUDING ST CHARLES COUNTY...MISSOURI AND THE ILLINOIS COUNTIES OF ST. CLAIR...MADISON...JERSEY AND MONROE BETWEEN 330 AND 430 PM. BRIEF HEAVY RAIN...SMALL HAIL AND WIND GUSTS 40 TO 50 MPH ARE EXPECTED WITH THE STORMS. TUCKER
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.