Alert archive / Illinois / Flash Flood Warnings in 2002

Flash Flood Warning 78, NWS Lincoln, IL

July 22, 2002Richland County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 22, 2002, 10:51 PM CDT for Richland County, Illinois. It was in force for 4 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: Jul 22, 2002, 10:51 PM CDT (03:51 UTC)
Expired: Jul 23, 2002, 3:00 AM CDT
In force: 4 hr
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

County Richland County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.9 hours before the alert went out and 160 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: 3265 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 902 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.3

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 230351
FFWSPI
ILC159-230745-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1049 PM CDT MON JUL 22 2002

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  RICHLAND COUNTY IN SOUTHEAST ILLINOIS

* UNTIL 300 AM CDT

* AT 1044 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR 
  INDICATED VERY HEAVY RAIN HAS FALLEN SOUTHWEST OF OLNEY.
  2 TO 4 INCHES OF RAIN HAS BEEN ESTIMATED SINCE 930 PM CDT.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS RICHLAND
  COUNTY. RAINFALL AMOUNTS WILL LIKELY RANGE FROM 2 TO 6 INCHES BY 
  100 AM. THESE RAINFALL AMOUNTS WILL LIKELY PRODUCE FLASH FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLASH FLOODS. IT IS VERY DIFFICULT AT NIGHT TO JUDGE HOW 
MUCH WATER COVERS ROADWAYS. DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS.

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 8800 3867 8797 3862 8826 3884 8830

EH
NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 7:24 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	36 min
Jul 22, 7:29 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Macon	46 min
Jul 22, 8:00 PM CDT	Flash Flood Warning	ILX	McLean	4 hr
Jul 22, 8:25 PM CDT	Flash Flood Warning	ILX	Douglas	6 hr
Jul 22, 8:53 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Cumberland	67 min
Jul 22, 9:08 PM CDT	Tornado Warning	ILX	Cumberland	37 min
Jul 22, 9:22 PM CDT	Severe Thunderstorm Warning	ILX	Clark	38 min
Jul 22, 9:31 PM CDT	Flash Flood Warning	ILX	Edgar	4 hr
Jul 22, 9:36 PM CDT	Severe Thunderstorm Warning	ILX	Crawford	39 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.