Alert archive / Illinois / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 68, NWS Lincoln, IL

July 9, 1990Peoria County, Tazewell County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jul 9, 1990, 9:22 PM CDT for Peoria County, Tazewell County, Illinois. It was in force for 68 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
Jul 9, 1990, 9:22 PM CDT (02:22 UTC)
Expired
Jul 9, 1990, 10:30 PM CDT
In force
68 min
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Peoria County, IL, Tazewell 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

TimeReportWhereRemark
Jul 9, 9:25 PM CDTHail 2.75Peoria, 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 00:00Z, 2.4 hours before the alert went out and 406 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.

Skew-T log-pSkew-T log-p diagram, Paducah/Barkley, KY at 00:00Z on 1990-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 175 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Paducah/Barkley, KY at 00:00Z on 1990-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
175 J/kg
Mixed-layer CIN
-99 J/kg
Mixed-layer LCL
2517 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KPIA 100222
SVRPIA
ILC143-179-100330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE PEORIA IL
922 PM CDT MON JUL 9 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1030 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE CENTRAL PART OF ILLINOIS
      EASTERN PEORIA...NORTHERN TAZEWELL

AT 9:20 PM CDT...  A SEVERE THUNDERSTORM WAS INDICATED BY RADAR AND
BY SPOTTER REPORTS JUST WEST OF PEORIA NEAR TRIVOLI.  THESE
THUNDERSTORMS HAVE BEEN MOVING TO THE EAST AT 30 MPH.

TRIVOLI HAD AN INCH OF RAIN IN 30 MINUTES AND RADAR INDICATED HAIL
IN THIS STORM.

IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REIN
FORECED
SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...VERY HEAVY
RAIN AND LIGHTNING.

ATTN ISP 8                                                           J

JACOBS

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, Jul 9, 6:29 PM CDT, 2 hours 53 minutes before
ILZ009-010-100030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
625 PM CDT MON JUL 9 1990

...THUNDERSTORMS IN EASTERN ILLINOIS...

AT 620 PM CDT WEATHER SERVICE RADARS SHOWS SHOWERS AND THUNDERSTORMS
NORTHERN CHAMPAIGN AND VERMILION COUNTIES IN EASTERN ILLINOIS.

THE STRONGEST THUNDERSTORM WAS LOCATED 15 TO 20 MILES NORTHWEST OF
DANVILLE ILLINOIS NEAR POTOMAC.

THE STRONGEST THUNDERSTORMS MAY PRODUCE BRIEF HEAVY RAINFALL...HAIL...
STRONG GUSTY WINDS AND DANGEROUS LIGHTNING.

THE STORMS WAS MOVING EAST AND SOUTHEAST AT 20 MPH.

HILLIARD                                                              [
ATTN: ISP DIST...10
Special weather statement, Jul 9, 8:09 PM CDT, 1 hour 13 minutes before
ILZ005-006-007-009-100205-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
805 PM CDT MON JUL 9 1990

RADAR INDICATES A LINE OF THUNDERSTORMS STRETCHING ACROSS ILLINOIS.

AT 8:00 PM THE LINE OF THUNDERSTORMS EXTENDED FROM BURLINGTON IOWA ACROSS
NORTHERN SECTIONS OF HENDERSON AND WARREN COUNTIES... AROUND MONMOUTH...
AND THROUGH CHILLICOTHE AND PONTIAC.

THE THUNDERSTORMS HAVE BEEN TRACKING TO THE EAT AT ABOUT 35 MPH.

RADAR INDICqATES POSSIBLE HAIL IN SOME OF THESE THUNDERSTORMS... AS WELL
AS HEAVY RAIN.  THUNDERSTORMS PRODUCE DANGEROUS LIGHTNING AND MAY CAUSE
STRONG GUSTY WINDS.

JACOBS
Special weather statement, Jul 9, 9:11 PM CDT, 11 minutes before
ILZ005-006-007-009-100310-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
910 PM CDT MON JUL 9 1990

...SEVERE THUNDERSTORM WATCH FOR CENTRAL ILLINOIS UNTIL 300AM...

AT 9:05 PM A LINE OF THUNDERSTORMS EXTENDED FROM BURLINGTON IOWA TO
PEORIA TO LAFAYETTE INDIANA.

THE THUNDERSTORMS HAVE BEEN TRACKING TO THE EAST AT ABOUT 30 MPH.

RADAR INDICATES POSSIBLE HAIL IN SOME OF THESE THUNDERSTORMS...AS WELL
AS LOCALLY HEAVY RAINFALL AND FREQUENT LIGHTNING.  STRONG GUSTY WINDS
CAN BE EXPECTED IN THE AREA OF THUNDERSTORMS.

NELSON

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.