Alert archive / Illinois / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 49, NWS Lincoln, IL

June 19, 1990DeKalb County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 19, 1990, 10:56 PM CDT for DeKalb County, Illinois. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Jun 19, 1990, 10:56 PM CDT (03:56 UTC)
Expired
Jun 19, 1990, 11:45 PM CDT
In force
49 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County DeKalb 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 3.9 hours before the alert went out and 293 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, Green Bay/Straub, WI at 00:00Z on 1990-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 00:00Z on 1990-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2451 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
214 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 KRFD 200356
SVRRFD
ILC037-200445-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE ROCKFORD IL
1056 PM CDT TUE JUN 19 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1145 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE NORTH CENTRAL PART OF ILLINOIS
      SOUTHERN DEKALB

AT 1055 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 35 MILES
SOUTH OF ROCKFORD...NEAR ROXBURY...IN SOUTHEAST LEE COUNTY.
THIS STORM PRODUCED GOLFBALL SIZED HAIL IN SOUTHWEST LEE COUNTY.
THE STORM IS MOVING TO THE EAST AT 50 MPH.

SOME COMMUNITIES AFFECTED BY THIS SEVERE THUNDERSTORM...
SHABBONA AND WATERMAN

ATTN: ISP DIST  1..2..16                                NAME

TRAVELERS AND CAMPERS...BE ALERT FOR RAPIDLY RISING WATER THAT MAY
COVER ROADS OR BE DANGEROUS TO YOUR CAMPSITES.

IF YOU AREA THREATENED BY THE STORM...GO TO A REINFORED SHELTER.
DAMAGING WINDS...LARGE HAIL...DAINGEROUS LIGHTNING...AND HEAVY
RAINFALL THAT CAN QUICKLY FLOOD A LOW LYING AREA IS IMMINENT.
REMEMBER ALSO THAT SEVERE THUNDERSTORMS CAN AND DO PRODUCE
TORNAODES WITH LITTLE OR NO WARNING...SO PLEASE BE ALERT!

  PETROVICH

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, Jun 19, 6:34 PM CDT, 4 hours 22 minutes before
ILZ005-006-007-009-200300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
630 PM CDT TUE JUN 19 1990

...FLASH FLOOD WATCH TONIGHT...
...A RISK OF SEVERE THUNDERSTORMS POSSIBLE TONIGHT...

A LOW PRESSURE SYSTEM OVER EASTERN NEBRASKA IS EXPECTED TO MOVE
EASTWARD THROUGH NORTHERN ILLINOIS BY WEDNESDAY MORNING.  THE LOW
AND ASSOCIATED FRONTAL SYSTEMS WILL BE ACCOMPANIED WITH SHOWERS
AND THUNDERSTORMS WITH LOCALLY HEAVY RAIN AND THE POSSIBLITY OF
SEVERE THUNDERSTORMS.   RAINFALL TOTALS OF 1 TO 2 INCHES MAY OCCUR
WITH THE POTENTIAL FOR SOME AREAS TO GET RAINFALL AMOUNTS IN EXCESS
OF 3 INCHES.

THE PRECIPTATION WILL BE ENDING WEDNESDAY MORNING AFTER THE SYSTEM
MOVES EAST OF THE STATE AND HIGH PRESSURE MOVES IN FROM THE WEST.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TELEVISION AND RADIO
STATIONS FOR FURTHER INFORMATION PERTAINING TO THIS WEATHER SYSTEM.

NELSON
Special weather statement, Jun 19, 8:41 PM CDT, 2 hours 15 minutes before
ILZ005-006-007-009-200240-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
840 PM CDT TUE JUN 19 1990

...TORNADO WATCH IN EFFECT FOR WEST CENTRAL ILLINOIS UNTIL 1AM...
...FLASH FLOOD WATCH TONIGHT...

AT 8:35 PM... WEATHER SERVICE RADARS INDICATED A COUPLE OF THUNDERSTORMS
ACROSS CENTRAL ILLINOIS NORTH OF PEORIA NEAR BRADFORD.

ANOTHER AREA OF STRONG THUNDERSTORM ACTIVITY WAS OCCURRING IN WESTERN
ILLINOIS BETWEEN BURLINGTON IOWA AND MOLINE ILLINOIS.

THE THUNDERSTORM ACTIVITY HAS BEEN MOVING TO THE EAST AT ABOUT 40 MPH.

THERE IS A STRONG POTENTIAL FOR SEVERE THUNDERSTORMS AND TORNADIC ACTIVITY
IN WEST CENTRAL ILLINOIS... AT THIS TIME THERE WERE NO WARNINGS IN EFFECT.

THERE IS ALSO A CHANCE FOR FLASH FLOODING FROM THE HEAVIER THUNDERSTORM
ACTIVITY...  AS THEY MOVE OVER THE ALREADY SATURATED GROUND.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO AND TV STATIONS
TO FURTHER STATEMENTS AND POSSIBLE WARNINGS.

JACOBS
Special weather statement, Jun 19, 8:45 PM CDT, 2 hours 11 minutes before
ILZ009-200230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
840 PM CDT TUE JUN 19 1990

...TORNADO WATCH FOR PORTIONS OF WEST CENTRAL ILLINOIS UNTIL 1 AM CDT...

AT 835 PM CDT WEATHER RADARS SHOWS AN AREA OF THUNDERSTORMS NORTH OF
 A BURLINGTON IOWA TO PEORIA ILLINOIS LINE. THESE STORMS WERE MOVING
SOUTHEAST AT 30 MPH.

AS THESE STORMS MOVE SOUTHEAST...ADDITIONAL THUNDERSTORMS MAY DEVELOP
TO THEIR SOUTH. THESE STORMS MAY BE CAPABLE OF PRODUCING VERY STRONG
GUSTY WINDS...HAIL...DANGEROUS LIGHTNING AND BRIEF HEAVY RAINFALL.

REMEMBER STORMS CAN AND DO OCCASIONALLY PRODUCE TORNADOES SUDDENLY
WITHOUT WARNING.{{}
PERSONS ACROSS CENTRAL ILLINOIS ARE ADVISED TO MONITOR THE WEATHER
CLOSELY AND SEEK SHELTER IMMEDIATELY AT THE FIRST SIGNS OF SEVERE
WEATHER.

FENLEY

ATTN ISP DIST...9 AND 19
Special weather statement, Jun 19, 9:30 PM CDT, 1 hour 26 minutes before
ILZ009-200330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
930 PM CDT TUE JUN 19 1990

...TORNADO WATCH FOR PORTIONS OF WEST CENTRAL ILLINOIS UNTIL 1 AM CDT...

AT 930 PM CDT WEATHER RADAR SHOWS AN AREA OF THUNDERSTORMS NORTH OF
A BURLINGTON IOWA TO PEORIA ILLINOIS LINE. THE STRONGEST STORMS WERE
NORTHEAST OF PEORIA AND NEAR MOLINE. THESE STORMS WERE MOVING EAST
SOUTHEAST AT 30 MPH.

AS THESE STORMS MOVE SOUTHEAST...ADDITIONAL THUNDERSTORMS MAY DEVELOP
TO THEIR SOUTH. THESE STORMS MAY BE CAPABLE OF PRODUCING VERY STRONG
GUSTY WINDS...HAIL...DANGEROUS LIGHTNING AND BRIEF HEAVY RAINFALL.

REMEMBER STORMS CAN AND DO OCCASIONALLY PRODUCE TORNADOES SUDDENLY
WITHOUT WARNING.

PERSONS ACROSS CENTRAL ILLINOIS ARE ADVISED TO MONITOR THE WEATHER
CLOSELY AND SEEK SHELTER IMMEDIATELY AT THE FIRST SIGNS OF SEVERE
WEATHER.

FENLEY

ATTN ISP DIST...9 AND 18
Special weather statement, Jun 19, 9:35 PM CDT, 1 hour 21 minutes before
ILZ005-006-007-009-200335-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
935 PM CDT TUE JUN 19 1990

...TORNADO WATCH IN EFFECT FOR WEST CENTRAL ILLINOIS UNTIL 1AM...
...FLASH FLOOD WATCH TONIGHT...

AT 9:30 PM... WEATHER SERVICE RADARS INDICATED AN AREA OF STRONG THUNDER-
STORMS WITH VERY HEAVY RAIN EXTENDING ACROSS NORTHERN WARREN AND NORTHWEST
KNOX COUNTIES OF WESTERN ILLINOIS.

THE THUNDERSTORM ACTIVITY HAS BEEN MOVING TO THE EAST AT ABOUT 40 MPH.

STORM SPOTTERS REPORTED VERY HEAVY RAIN FROM THESE THUNDERSTORMS ACROSS
NORTHERN WARREN COUNTY... HIGHWAY 67 WAS COVERED BY WATER AND TRAFFIC
WAS NEAR STOPPED.

THESE THUNDERSTORMS WILL TRACK EAST ACROSS KNOX COUNTY DURING THE NEXT
HOUR AND SHOULD REACH STARK COUNTY AFTER 10 PM.
.
OTHER LESS INTENSE THUNDERSTORMS WERE OCCURRING WEST OF PEORIA MOVING
INTO PEORIA COUNTY FROM FULTON AND SOUTHERN KNOX COUNTIES.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO AND TV STATIONS
TO FURTHER STATEMENTS AND POSSIBLE WARNINGS.

JACOBS
Special weather statement, Jun 19, 10:21 PM CDT, 35 minutes before
ILZ009-200430-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
1020 PM CDT TUE JUN 19 1990

...TORNADO WATCH FOR PORTIONS OF WEST CENTRAL ILLINOIS UNTIL 1 AM CDT...

AT 1015 PM CDT WEATHER RADAR SHOWS AN AREA OF THUNDERSTORMS NORTH OF
A LINE FROM NEAR BLOOMINGTON TO 20 MILES NORTH OF BURLINGTON IOWA. THE
STRONGEST STORMS WERE ALONG A LINE FROM JUST NORTH OF PEORIA TO 30
MILES NORTH OF BURLINGTON. THESE STORMS WERE MOVING EAST SOUTHEAST
AT 35 MPH.

AS THESE STORMS MOVE SOUTHEAST...ADDITIONAL THUNDERSTORMS MAY DEVELOP
TO THEIR SOUTH. THESE STORMS MAY BE CAPABLE OF PRODUCING VERY STRONG
GUSTY WINDS...HAIL...DANGEROUS LIGHTNING AND BRIEF HEAVY RAINFALL.

REMEMBER STORMS CAN AND DO OCCASIONALLY PRODUCE TORNADOES SUDDENLY
WITHOUT WARNING. {{}
PERSONS ACROSS CENTRAL ILLINOIS ARE ADVISED TO MONITOR THE WEATHER
CLOSELY AND SEEK SHELTER IMMEDIATELY AT THE FIRST SIGNS OF SEVERE
WEATHER.

FENLEY

ATTN ISP DIST...9 AND 18.

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 19, 9:55 PM CDTSevere Thunderstorm WarningILXKnox, Peoria, Stark65 min
Jun 19, 10:05 PM CDTSevere Thunderstorm WarningILXBureau55 min
Jun 19, 10:17 PM CDTSevere Thunderstorm WarningILXLee43 min
Jun 19, 10:48 PM CDTTornado WarningILXPeoria, Woodford27 min
Jun 19, 11:08 PM CDTTornado WarningILXKnox37 min
Jun 19, 11:41 PM CDTSevere Thunderstorm WarningILXFulton, McDonough, Warren64 min
Jun 19, 11:50 PM CDTFlash Flood WarningILXKnox, Peoria, Warren4 hr
Jun 20, 12:47 AM CDTSevere Thunderstorm WarningILXMcLean, Tazewell58 min
Jun 20, 1:06 AM CDTTornado WarningILXSchuyler39 min
Jun 20, 1:10 AM CDTSevere Thunderstorm WarningILXLogan, Menard65 min
Jun 20, 1:39 AM CDTFlash Flood WarningILXFulton, Tazewell3 hr
Jun 20, 1:40 AM CDTSevere Thunderstorm WarningILXMacon65 min
Jun 20, 2:00 AM CDTFlash Flood WarningILXWoodford3 hr
Jun 20, 2:01 AM CDTSevere Thunderstorm WarningILXMoultrie, Shelby59 min
Jun 20, 2:06 AM CDTFlash Flood WarningILXSangamon3 hr
Jun 20, 2:18 AM CDTFlash Flood WarningILXMcDonough, Schuyler3 hr
Jun 20, 2:30 AM CDTSevere Thunderstorm WarningILXChristian60 min
Jun 20, 2:44 AM CDTSevere Thunderstorm WarningILXColes, Edgar61 min
Jun 20, 3:06 AM CDTSevere Thunderstorm WarningILXClark, Cumberland69 min
Jun 20, 3:31 AM CDTFlash Flood WarningILXClark, Coles, Cumberland3 hr
Jun 20, 3:31 AM CDTFlash Flood WarningILXEdgar3 hr
Jun 20, 5:09 AM CDTFlash Flood WarningILXCass, Menard, Sangamon3 hr
Jun 20, 5:09 AM CDTFlash Flood WarningILXMacoupin, Montgomery, Morgan3 hr
Jun 20, 5:09 AM CDTFlash Flood WarningILXChristian3 hr
Jun 20, 5:27 AM CDTFlash Flood WarningILXFulton, McDonough, Schuyler3 hr
Jun 20, 5:27 AM CDTFlash Flood WarningILXMason3 hr
Jun 20, 8:05 AM CDTFlash Flood WarningILXChristian, Montgomery, Sangamon3 hr
Jun 20, 8:05 AM CDTFlash Flood WarningILXCass, Menard3 hr
Jun 20, 8:05 AM CDTFlash Flood WarningILXMacoupin, Morgan3 hr
Jun 20, 8:30 AM CDTFlash Flood WarningILXFulton, McDonough, Mason, Schuyler110 min
Jun 20, 9:00 AM CDTFlash Flood WarningILXFulton, McDonough, Schuyler90 min
Jun 20, 9:00 AM CDTFlash Flood WarningILXMason90 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.