Alert archive / Illinois / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 2, NWS Lincoln, IL

March 17, 1989Warren County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Mar 17, 1989, 10:52 AM CST for Warren County, Illinois. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Mar 17, 1989, 10:52 AM CST (16:52 UTC)
Expired
Mar 17, 1989, 11:45 AM CST
In force
53 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Warren 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

Peoria Regional, IL (KPIA), launched 12:00Z, 4.9 hours before the alert went out and 88 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, Peoria Regional, IL at 12:00Z on 1989-03-17Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peoria Regional, IL at 12:00Z on 1989-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 256 square meters per square second.1939587897Sfc1 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
1272 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
256 m²/s²
0-3 km storm-relative helicity
319 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 171652
SVRPIA
ILC187-109-171745-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE PEORIA IL
1052 AM CST FRI MAR 17 1989

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1145 AM CST FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE WEST CENTRAL PART OF ILLINOIS
      SOUTHERN WARREN...NORTHERN MCDONOUGH

AT 1045 AM CST RADAR AND SURFACE REPORTS INDICATED A SEVERE
THUNDERSTORM NEAR LAHARPE IN NORTHEAST HANCOCK COUNTY.  THE
THUNDERSTORM WAS MOVING TO THE EAST NORTHEAST AT 40 MPH.

LAHARPE IS 75 MILES WEST OF PEORIA.

PEA TO MARBLE SIZE HAIL HAS BEEN REPORTED WITH THIS STORM.

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

ATTN ISP  DISTRICTS 7 AND 14

NADOLSKI

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, Mar 17, 10:33 AM CST, 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
1030 AM CST FRI MAR 17 1988

...THUNDERSTORMS MOVING INTO WESTERN ILLINOIS...

AT 1030 CST AM RADAR INDICATED SOME HEAVY THUNDERSTORMS BEGINNING
TO MOVE ACROSS THE MISSISSIPPI RIVER INTO WESTERN ILLINOIS.
THE STRONGEST STORMS WERE BETWEEN BURLINGTON IOWA AND KEOKUK
IOWA.

THESE STORMS WERE MOVING EAST NORTHEAST AT ABOUT 40 MPH AND WILL
BE MOVING ACROSS HENDERSON AND WARREN COUNTIES BETfWEEN 1030 AM
AND 1130 AM CST.

THESE STORMS MAY PRODUCE STRONG GUSTY WINDS TO AROUND 40 MPH...
DANGEROUS LIGHTNING AND HEAVY RAIN.

ARMBRUST

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 17, 10:52 AM CSTSevere Thunderstorm WarningILXMcDonough23 min
Mar 17, 11:25 AM CSTSevere Thunderstorm WarningILXKnox, Peoria40 min
Mar 17, 5:06 PM CSTSevere Thunderstorm WarningILXMorgan69 min
Mar 17, 5:28 PM CSTSevere Thunderstorm WarningILXSangamon62 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1989Every 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; the sounding from the Mesonet's radiosonde archive.