Alert archive / Illinois / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 23, NWS Lincoln, IL

April 26, 19894 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Apr 26, 1989, 10:39 PM CDT for 4 counties in Illinois. It was in force for 66 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 26, 1989, 10:39 PM CDT (03:39 UTC)
Expired: Apr 26, 1989, 11:45 PM CDT
In force: 66 min
Issued by: NWS Lincoln, IL
Area: Whole counties

Counties Clark County, IL, Coles County, IL, Cumberland County, IL, Edgar 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 26, 11:30 PM CDT	Thunderstorm Wind 0	Clark, 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

Peoria Regional, IL (KPIA), launched 00:00Z, 3.7 hours before the alert went out and 192 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1526 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 1669 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 111 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Apr 26, 5:37 PM CDT, 5 hours 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
535 PM CDT WED APR 26 1989

...TORNADO WATCH REMAINS IN EFFECT FOR WEST CENTRAL ILLINOIS
UNTIL 11 PM...

AT 530 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SHOWERS AND STRONG THUNDERSTORMS EXTENDING FROM SOUTHWESTERN
WISCONSIN TO 20 MILES EAST OF DES MOINES IOWA.  SEVERE THUNDER
STORMS WERE LOCATED 20 MILES EAST OF DES MOINES AND 35 MILES
WEST OF MOLINE ILLINOIS.  THE SHOWERS AND STORMS WERE MOVING
SOUTHEAST AT 35 MILES AN HOUR.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN THIS AREA.  BE ON THE
LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN TO LOCAL
RADIO...TELEVISION...OR NOAA WEATHER RADIO FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.
                                                     J LAST

Special weather statement, Apr 26, 6:33 PM CDT, 4 hours 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
630 PM CDT WED APR 26 1989

...TORNADO WATCH REMAINS IN EFFECT FOR WEST CENTRAL ILLINOIS
UNTIL 11 PM...

AT 625 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM 10 MILES SOUTHEAST OF MOLINE ILLINOIS.  THIS STORM
WAS PART OF A LINE OF SHOWERS AND STRONG THUNDERSTORMS EXTENDING
FROM NEAR MADISON WISCONSIN TO DES MOINES IOWA.  THE SHOWERS AND
STORMS WERE MOVING SOUTHEAST AT 35 MILES AN HOUR.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN THIS AREA.  BE ON THE
LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN TO LOCAL
RADIO...TELEVISION...OR NOAA WEATHER RA,DIO FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

J LAST

Special weather statement, Apr 26, 6:38 PM CDT, 4 hours 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
6 35 PM CDT WED APR 26 1989

...STRONG THUNDERSTORM IN SOUTHEAST ILLINOIS...

AT 630 PM CDT WEATHER RADARS SHOW A STRONG THUNDERSTORM LOC.ATED IN
CLARK COUNTY JUST SOUTHEAST OF MARTINSVILLE ILLINOIS.

THE THUNDERSTORM WAS MOVING EAST AND SOUTHEAST AT 30 MPH.

THIS THUNDERSTORM MAY PRODUCE STRONG GUSTY WINDS..DANGEROUS LIGHTNING
...AND HEAVY RAINFALL AMOUNTS.

HILLIARD

Special weather statement, Apr 26, 7:22 PM CDT, 3 hours 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
7 20 PM CDT WED APR 26 1989

...STRONG THUNDERSTORM IN SOUTHEAST ILLINOIS...

AT 715 PM CDT WEATHER RADARS SHOW A STRONG THUNDERSTORM LOCATED IN
CLARK COUNTY JUST EAST OF MARTINSVILLE ILLINOIS.

THE THUNDERSTORM WAS MOVING SLOWLY EAST AT ABOUT 10 MPH.

THIS THUNDERSTORM MAY PRODUCE STRONG GUSTY WINDS..DANGEROUS LIGHTNING
...AND HEAVY RAINFALL CAUSING LOCAL FLOODING DUE TO THE SLOW MOVEMENT.

HILLIARD

Special weather statement, Apr 26, 10:39 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 7:28 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Peoria, Woodford	47 min
Apr 26, 7:44 PM CDT	Severe Thunderstorm Warning	ILX	Peoria, Tazewell, Woodford	46 min
Apr 26, 8:04 PM CDT	Severe Thunderstorm Warning	ILX	McLean	41 min
Apr 26, 8:18 PM CDT	Severe Thunderstorm Warning	ILX	Hancock, McDonough, Schuyler	42 min
Apr 26, 8:47 PM CDT	Severe Thunderstorm Warning	ILX	McLean	28 min
Apr 26, 9:08 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, McDonough, Schuyler	37 min
Apr 26, 9:21 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Piatt	69 min
Apr 26, 9:46 PM CDT	Severe Thunderstorm Warning	ILX	Macon, Sangamon	59 min
Apr 26, 9:46 PM CDT	Severe Thunderstorm Warning	ILX	Morgan	59 min
Apr 26, 9:57 PM CDT	Severe Thunderstorm Warning	ILX	Douglas, Moultrie	63 min
Apr 26, 9:57 PM CDT	Severe Thunderstorm Warning	ILX	Champaign	63 min
Apr 26, 10:14 PM CDT	Severe Thunderstorm Warning	ILX	Macoupin, Montgomery	61 min
Apr 26, 10:14 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Shelby	61 min
Apr 26, 11:06 PM CDT	Severe Thunderstorm Warning	ILX	Macoupin, Morgan, Sangamon	69 min
Apr 26, 11:06 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Montgomery	69 min
Apr 26, 11:06 PM CDT	Severe Thunderstorm Warning	ILX	Macon	69 min
Apr 26, 11:49 PM CDT	Severe Thunderstorm Warning	ILX	Moultrie, Shelby	56 min
Apr 27, 12:02 AM CDT	Severe Thunderstorm Warning	ILX	Clark, Edgar	58 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1989 Every severe thunderstorm warning in 1989

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.