Alert archive / Illinois / Flash Flood Warnings in 2002

Flash Flood Warning 28, NWS Lincoln, IL

May 6, 2002Clay County, Lawrence County, Richland County, Illinois

NWS Lincoln, IL issued this flash flood warning at May 6, 2002, 2:41 PM CDT for Clay County, Lawrence County, Richland County, Illinois. It was in force for 6 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: May 6, 2002, 2:41 PM CDT (19:41 UTC)
Expired: May 6, 2002, 9:00 PM CDT
In force: 6 hr
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

Counties Clay County, IL, Lawrence County, IL, Richland County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.7 hours before the alert went out and 163 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: 1 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 445 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 346 m²/s²
0-3 km storm-relative helicity: 454 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 
WGUS53 KILX 061941
FFWSPI
ILC025-101-159-070130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
241 PM CDT MON MAY 6 2002

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLAY COUNTY IN SOUTH CENTRAL ILLINOIS
  RICHLAND COUNTY IN SOUTHEAST ILLINOIS
  LAWRENCE COUNTY IN SOUTHEAST ILLINOIS

* UNTIL 900 PM CDT

* AT 240 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN HAS FALLEN ACROSS CLAY...RICHLAND AND LAWRENCE 
  COUNTIES. DOPPLER RADAR ESTIMATES UP TO 4 INCHES OF RAIN HAS FALLEN
  SINCE LAST NIGHT...WITH ADDITIONAL THUNDERSTORMS EXPECTED TO 
  DEVELOP AND MOVE INTO THE REGION THIS AFTERNOON. THE COOPERATIVE 
  WEATHER OBSERVER IN LAWRENCEVILLE REPORTED 2.38 INCHES HAS FALLEN 
  SINCE 6 AM. ADDITIONAL RAIN WILL LIKELY CAUSE FLASH FLOODING 
  ACROSS THE AREA.

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 3884 8752 3861 8766 3863 8869 3886 8869

PLAHMER
NNNN

1 follow-up statement

000 
WGUS53 KILX 070202
FFSSPI
ILC025-101-159-070230-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
900 PM CDT MON MAY 6 2002

...FLASH FLOOD WARNING FOR CLAY...RICHLAND...AND LAWRENCE COUNTIES 
HAS EXPIRED...

THE FLASH FLOOD WARNING FOR CLAY...RICHLAND...AND LAWRENCE COUNTIES 
HAS EXPIRED AS OF 9 PM AND WILL NOT BE EXTENDED. CONTACTS WITH LAW 
ENFORCEMENT AUTHORITIES ACROSS THE AREA INDICATE NO FURTHER FLOODING 
PROBLEMS.

ALTHOUGH THE WARNING HAS EXPIRED...A FLOOD WATCH REMAINS IN EFFECT 
THROUGH TONIGHT. ADDITIONAL THUNDERSTORM ACTIVITY DEVELOPING OVER 
WESTERN MISSOURI IS EXPECTED TO MOVE EAST OVERNIGHT AND MAY AFFECT 
SOUTHEAST ILLINOIS. ANY FURTHER RAINFALL WILL LIKELY RESULT IN 
RENEWED FLOODING.

STAY ABREAST OF THE LASTEST WEATHER INFORMATION BY LISTENING TO NOAA 
WEATHER RADIO...OR COMMERCIAL RADIO OR TELEVISION.

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 5:11 AM CDT	Flash Flood Warning	ILX	Shelby	4 hr
May 6, 7:18 AM CDT	Flash Flood Warning	ILX	Coles	4 hr
May 6, 9:17 AM CDT	Flash Flood Warning	ILX	Morgan, Sangamon, Scott	6 hr
May 6, 9:18 AM CDT	Severe Thunderstorm Warning	ILX	Scott	42 min
May 6, 10:12 AM CDT	Flash Flood Warning	ILX	Christian, Shelby	6 hr
May 6, 11:22 AM CDT	Flash Flood Warning	ILX	Crawford, Effingham, Jasper	6 hr

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.