Alert archive / Illinois / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 5, NWS Lincoln, IL

March 9, 1992Carroll County, Stephenson County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Mar 9, 1992, 3:38 PM CST for Carroll County, Stephenson County, Illinois. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
Mar 9, 1992, 3:38 PM CST (21:38 UTC)
Expired
Mar 9, 1992, 4:05 PM CST
In force
27 min
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Carroll County, IL, Stephenson County, IL

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.6 hours before the alert went out and 287 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 12:00Z on 1992-03-09Temperature 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, Green Bay/Straub, WI at 12:00Z on 1992-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 149 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
539 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
149 m²/s²
0-3 km storm-relative helicity
627 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 092138
SVRRFD
ILC177-015-092230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE ROCKFORD IL
338 PM CST MON MAR 9 1992

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 430 PM CST FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTH CENTRAL PART OF ILLINOIS
      STEPHENSON...

   IN THE NORTHWEST PART OF ILLINOIS
      NORTHEAST CARROLL...

AT 335 PM CST.. CARROLL COUTY SHERIFFS OFFICE REPORTED GOLF BALL
SIZE HAIL AT LANARK  40 MILES WEST OF ROCKFORD.
RADAR INDICATED TH STORM MOVING NORTHEAST AT 50 MPH.

SOME COMMUNITIES THAT WILL BE AFFECTED BY THIS SEVERE THUNDERSTORM...
SHANNON...FREEPORT...DAKOTA.

IF YOU ARE IN AN AREA THREATENED BY THE STORM...GO TO A REINFORECED
SHELTER! DAMAGING WINDS...LARGE HAIL...DANGEROUS LIGHTNING...AND
HEAVY RAINFALL THAT CAN QUICKLY FLOOD A LOW LYING AREA IS IMMINENT.
REMEMBER ALSO...SEVERE THUNDERSTORMS CAN AND DO PROD7UCE TORNADOES
WITH LITTLE OR NO WARNING...SO BE ALERT!

ATTN: ISP DIST  1...16                                  LIBRIZZI

Nearby

Severe Thunderstorm Warnings in Illinois, 1992Every severe thunderstorm warning in 1992

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.