Alert archive / Illinois / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 64, NWS Lincoln, IL

June 29, 1990Bureau County, Putnam County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 29, 1990, 2:51 AM CDT for Bureau County, Putnam County, Illinois. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Jun 29, 1990, 2:51 AM CDT (07:51 UTC)
Expired
Jun 29, 1990, 4:00 AM CDT
In force
69 min
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Bureau County, IL, Putnam 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, 7.9 hours before the alert went out and 369 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 1990-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 840 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, Green Bay/Straub, WI at 00:00Z on 1990-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 square meters per square second.193958Sfc1 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
840 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
630 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
245 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPIA 290751
SVRPIA
ILC011-155-290900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE PEORIA IL
251 AM CDT FRI JUN 29 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 400 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE CENTRAL PART OF ILLINOIS
      BUREAU...PUTNAM

AT 240 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM IN CENTRAL
BUREAU COUNTY SOUTH OF PRINCETON ...50 MILES NORTH OF PEORIA.
 MOVEMENT WAS SOUTH AT 35 MILES PER HOUR.

TOWNS IN THE PATH OF THIS STORM ARE GRANVILLE AND DEPUE.

IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REINFORECED
SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL.8..VERY HEAVY
RAIN AND LIGHTNING.

ATTN ISP  17

ROEPKE.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 12:46 AM CDTSevere Thunderstorm WarningILXStephenson, Winnebago44 min
Jun 29, 1:08 AM CDTSevere Thunderstorm WarningILXBoone67 min
Jun 29, 1:39 AM CDTSevere Thunderstorm WarningILXDeKalb, Ogle, Winnebago51 min
Jun 29, 2:00 AM CDTSevere Thunderstorm WarningILXCarroll, Ogle45 min
Jun 29, 2:22 AM CDTSevere Thunderstorm WarningILXDeKalb, Lee53 min
Jun 29, 7:15 AM CDTFlash Flood WarningILXMcLean, Peoria, Tazewell, Woodford2 hr
Jun 29, 9:20 AM CDTFlash Flood WarningILXMcLean, Peoria, Tazewell, Woodford115 min
Jun 29, 11:15 AM CDTFlash Flood WarningILXMcLean, Peoria, Tazewell, Woodford3 hr

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.