Alert archive / Illinois / Flash Flood Warnings in 2002

Flash Flood Warning 56, NWS Lincoln, IL

June 4, 2002Morgan County, Scott County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jun 4, 2002, 6:36 PM CDT for Morgan County, Scott County, Illinois. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 4, 2002, 6:36 PM CDT (23:36 UTC)
Expired: Jun 4, 2002, 9:30 PM CDT
In force: 3 hr
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

Counties Morgan County, IL, Scott County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.6 hours before the alert went out and 145 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: 1332 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1268 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 146 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 042336
FFWSPI
ILC137-171-050230-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
635 PM CDT TUE JUN 4 2002

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEAST SCOTT COUNTY IN WEST CENTRAL ILLINOIS
  MORGAN COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 930 PM CDT

* AT 630 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  BETWEEN 2 AND 3 INCHES OF RAIN FELL OVER SOUTHEAST SCOTT AND 
  SOUTHWESTERN MORGAN COUNTIES SINCE 5 PM.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE TO MOVE
  NORTHEAST ACROSS MORGAN AND SOUTHEAST SCOTT COUNTIES THROUGH SUNSET.
  RAINFALL AMOUNTS WILL LIKELY RANGE FROM 1 TO 2 MORE INCHES BY 830 PM.
  THESE RAINFALL AMOUNTS WILL LIKELY PRODUCE FLASH FLOODING ESPECIALLY
  BETWEEN MANCHESTER AND MURRAYVILLE WHICH IS SOUTH OF JACKSONVILLE.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF IN A FLOOD PRONE AREA...MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG CREEKS AND STREAMS ARE ESPECIALLY VULNERABLE
TO THE EFFECTS OF FLASH FLOODING. DO NOT ATTEMPT TO CROSS FLOODED
AREAS BY FOOT OR AUTOMOBILE.

REPORT FLASH FLOODING TO YOUR LOCAL ESDA...OR THE NEAREST LAW
ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE. STAY
TUNED FOR LATER STATEMENTS.

LAT...LON 3987 9002 3957 9003 3956 9032 3955 9055

KH

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 1:53 PM CDT	Severe Thunderstorm Warning	ILX	Marshall	37 min
Jun 4, 2:24 PM CDT	Severe Thunderstorm Warning	ILX	Knox, Stark	51 min
Jun 4, 2:30 PM CDT	Tornado Warning	ILX	Marshall	30 min
Jun 4, 3:23 PM CDT	Flash Flood Warning	ILX	Knox	7 hr
Jun 4, 4:21 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox, Peoria	54 min
Jun 4, 4:25 PM CDT	Severe Thunderstorm Warning	ILX	Schuyler	65 min
Jun 4, 5:11 PM CDT	Severe Thunderstorm Warning	ILX	Tazewell	64 min
Jun 4, 5:23 PM CDT	Severe Thunderstorm Warning	ILX	Woodford	52 min
Jun 4, 5:32 PM CDT	Severe Thunderstorm Warning	ILX	McLean	58 min
Jun 4, 6:10 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	80 min

Nearby

Flash Flood Warnings in Illinois, 2002 Every flash flood warning in 2002

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.