Alert archive / Illinois / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 69, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Jul 20, 1990, 5:50 PM CDT for Clark County, Illinois. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Jul 20, 1990, 5:50 PM CDT (22:50 UTC)
- Expired
- Jul 20, 1990, 6:45 PM CDT
- In force
- 55 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County Clark 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, 10.8 hours before the alert went out and 264 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
- 909 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 1093 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 74 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 KSPI 202250
SVRSPI
ILC023-202345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD IL
550 PM CDT FRI JUL 20 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE EAST CENTRAL PART OF ILLINOIS
CLARK
AT 540PM CDT WEATHER SERVICE RADAR INDICATED A VERY STRONG THUNDER/
STORM WAS LOCATED NEAR CASEY ILLINOIS IN CLARK COUNTY. OBSERVERS
REPORT VERY HEAVY RAIN AND WINDS GUSTING TO 70 MPH WITH SUSTAINED
WINDS AT 50 MPH. ALSO HE REPORTED 1.35 INCH OF RAIN DURING THE
PAST 35 MINUTES.
THE STORM IS MOVING TO THE EAST AT 35 MPH.
IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REINFORCED
SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...VERY HEAVY
RAIN AND DANGEROUS LIGHTNING.
THIS SLOW MOVING THUNDERSTORM MAY CAUSE FLOODING OF SMALL STREAMS
AND UNDERPASSES.
INTENSE LIGHTNING IS REPORTED WITH THIS STORM. IF OUTDOORS...
STAY AWAY FROM HIGH OBJECTS. MOVE INDOORS IF POSSIBLE. WHEN
INDOORS...STAY AWAY FROM WINDOWS AND DOORS. AVOID USING TELEPHONES
AND ELECTRICAL EQUIPIMENT.
ATTN ISP DIST...12
MUNDYWhat 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, Jul 20, 2:56 PM CDT, 2 hours 54 minutes before
ILZ009-010-202050 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 255 PM CDT THU JUL 19 1990 ...SHOWERS AND THUNDERSTORMS IN WESTERN ILLINOIS... AT 240PM CDT WEATHER SERVICE RADAR INDICATED SHOWERS AND THUNDERSTORMS WERE IN WESTERN ILLINOIS...40 MILES WEST SOUTHWEST OF SPRINGFIELD. THE STRONGEST THUNDERSTORMS WERE LOCATED NEAR PITTSFIELD AND PEAR ILLINOIS IN PIKE COUNTY...45 MILES WEST SOUTHWEST OF SPRINGFIELD. THESE STORMS WILL BE MOVING INTO MORGAN AND MACOUPIN COUNTIES SOMETIME AFTER 315PM CDT. HEAVY RAIN...STRONG GUSTY WINDS...HAIL AND DANGEROUS LIGHTNING MAY ACCOMPANY THESE STORMS. THE STORMS WERE MOVING TO THE EAST AT 25 MPH. OTHER SHOWERS AND THUNDERSTOR6MS WERE LOCATED IN CHRISTIAN AND SHELBY COUNTIES...25 TO 30 MILES SOUTHEAST OF SPRINGFIELD AS WELL AS SOME STORMS 20 MILES SOUTH OF QUINCY AND IN NORTHEASTERN MISSOURI. MUNDY
Special weather statement, Jul 20, 3:49 PM CDT, 2 hours 1 minute before
ILZ009-010-202145 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 345 PM CDT THU JUL 19 1990 ...SHOWERS AND THUNDERSTORMS IN WESTERN AND CENTRAL ILLINOIS... AT 335PM CDT WEATHER SERVICE RADAR INDICATED SHOWERS AND THUNDERSTORMS WERE IN MORGAN...NORTHWESTERN MACOUPIN...CHRISTIAN...SHELBY AND MOULTRIE COUNTIES...25 MILES SOUTHWEST AND 25 MILES SOUTHEAST OF SPRINGFIELD. THE STRONGEST THUNDERSTORMS WERE LOCATED JUST WEST OF MURRYVILLE AND NEAR GREENFIELD IN GREENE COUNTY...30 TO 35 MILES SOUTHWEST OF SPRING/ FIELD. HEAVY RAIN...STRONG GUSTY WINDS...HAIL AND DANGEROUS LIGHTNING MAY ACCOMPANY THESE STORMS. OTHER SHOWERS AND THUNDERSTORMS WERE LOCATED NEAR QUINCY SOUTHWAFRD TO PITTSFIELD ILLINOIS AND IN NORTHEASTERN MISSOURI. MUNDY
Special weather statement, Jul 20, 3:52 PM CDT, 1 hour 58 minutes before
ILZ009-010-202145 SPECIAL WEATHER STATEMENT...CORRECTION... NATIONAL WEATHER SERVICE SPRINGFIELD IL 345 PM CDT THU JUL 19 1990 ...SHOWERS AND THUNDERSTORMS IN WESTERN AND CENTRAL ILLINOIS... AT 335PM CDT WEATHER SERVICE RADAR INDICATED SHOWERS AND THUNDERSTORMS WERE IN MORGAN...NORTHWESTERN MACOUPIN...CHRISTIAN...SHELBY AND MOULTRIE COUNTIES...25 MILES SOUTHWEST AND 25 MILES SOUTHEAST OF SPRINGFIELD. THE STRONGEST THUNDERSTORMS WERE LOCATED JUST WEST OF MURRYVILLE AND NEAR GREENFIELD IN GREENE COUNTY...30 TO 35 MILES SOUTHWEST OF SPRING/ FIELD. HEAVY RAIN...STRONG GUSTY WINDS...HAIL AND DANGEROUS LIGHTNING MAY ACCOMPANY THESE STORMS. THE STORMS WERE MOVING TO THE EAST AT 35 MILKES AN HOUR. OTHER SHOWERS AND THUNDERSTORMS WERE LOCATED FROM QUINCY SOUTHWARD TO 30 MILES SOUTH OF PITTSFIELD ILLINOIS AND IN NORTHEASTERN MISSOURI. MUNDY
Special weather statement, Jul 20, 4:41 PM CDT, 1 hour 9 minutes before
ILZ009-010-202245 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 440 PM CDT FRI JUL 20 1990 ...SHOWERS AND THUNDERSTORMS IN WESTERN AND CENTRAL ILLINOIS... AT 425PM CDT WEATHER SERVICE RADAR INDICATED SHOWERS AND THUNDERSTORMS WERE IN MORGAN...MACOUPIN...SOUTHWESTERN SANGAMON...SHELBY...COLES AND CUMBERLAND COUNTIES...15 MILES SOUTHWEST AND 35 MILES SOUTHEAST OF SPRINGFIELD. THE STRONGEST THUNDERSTORMS WERE LOCATED JUST NORTH OF JACKSONVILLE... VIRDEN...GIRARD AND CARLINVILLE...20 MILES WEST AND 15 MILES SOUTHWEST OF SPRINGFIELD. SOME OTHER STORMS WERE LOCATED FINDLAY AND WINDSOR IN SHELBY COUNTY...30 TO 35 MILES SOUTH OF CHAMPAIGN. HEAVY RAIN...STRONG GUSTY WINDS}...HAIL AND DANGEROUS LIGHTNING MAY ACCOMPANY THESE STORMS. THE STORMS WERE MOVING TO THE EAST AT 35 MPH. OTHER SHOWERS AND THUNDERSTORMS WERE LOCATED FROM 30 MILES NORTH OF QUINCY SOUTHWARD TO JUST NORTH OF ST LOUIS MISSOURI. MUNDY
Special weather statement, Jul 20, 5:12 PM CDT, 38 minutes before
ILZ009-010-202255 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 510 PM CDT FRI JUL 20 1990 ...SHOWERS AND THUNDERSTORMS IN WESTERN AND CENTRAL ILLINOIS... AT 455PM CDT WEATHER SERVICE RADAR INDICATED SHOWERS AND THUNDERSTORMS WERE LOCATED 30 MILES WEST...30 MILES SOUTHWEST AND 15 MILES SOUTH OF SPRINGFIELD AS WELL AS 35 MILES SOUTH OF DANVILLE. THE STRONGEST THUNDERSTORMS WERE LOCATED JUST NORTHEAST OF MEREDOSIA IN CASS COUNTY...NEAR PALMYRA IN MACOUPIN COUNTY AND NEAR MORRISONVILLE IN CHRISTIAN COUNTY. ANOTHER STORM WAS LOCATED JUST EAST OF MARTINSVILLE IN CLARK COUNTY...35 MILES SOUTH OF DANVILLLE. SOME REPORTS OF HEAVY RAIN...GUSTY WINDS AND SMALL HAIL HAVE BEEN REPORTED TO THIS OFFICE IN THE PAST HALF HOUR. HEAVY RAIN...STRONG GUSTY WINDS...HAIL AND DANGEROUS LIGHTNING MAY ACCOMPANY THESE STORMS. THE STORMS WERE MOVING TO THE EAST AT 35 MPH. OTHER SHOWERS AND THUNDERSTORMS WERE LOCATED FROM 30 MILES NORTH OF QUINCY SOUTHWARD TO JUST NORTH OF ST LOUIS MISSOURI. MUNDY
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 8:12 PM CDT | Flash Flood Warning | ILX | Boone, Ogle, Stephenson, Winnebago | 108 min |
| Jul 19, 8:12 PM CDT | Flash Flood Warning | ILX | Lee | 108 min |
| Jul 19, 8:12 PM CDT | Flash Flood Warning | ILX | Carroll | 108 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.