Alert archive / Illinois / Flash Flood Warnings in 2002

Flash Flood Warning 1, NWS Lincoln, IL

April 12, 2002Edgar County, Vermilion County, Illinois

NWS Lincoln, IL issued this flash flood warning at Apr 12, 2002, 5:21 PM CDT for Edgar County, Vermilion 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: Apr 12, 2002, 5:21 PM CDT (22:21 UTC)
Expired: Apr 12, 2002, 9:00 PM CDT
In force: 4 hr
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

Counties Edgar County, IL, Vermilion County, IL

The radar

The Indianapolis radar (KIND), 124 km from the middle of the area, began a volume at 22:22 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.4 hours before the alert went out and 80 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: 215 J/kg
Mixed-layer CIN: -74 J/kg
Mixed-layer LCL: 1073 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 122 m²/s²
0-3 km storm-relative helicity: 97 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 122221
FFWSPI
ILC045-183-130200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
517 PM CDT FRI APR 12 2002

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EDGAR COUNTY IN EAST CENTRAL ILLINOIS
  SOUTHERN VERMILION COUNTY IN EAST CENTRAL ILLINOIS

* UNTIL 900 PM CDT

* AT 513 PM CDT...FLASH FLOODING WAS REPORTED IN PARIS. ALSO...
  ISOLATED FLOODING WAS REPORTED IN SOUTHERN VERMILION COUNTY...
  NEAR GEORGETOWN. NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED
  THAT 2 TO 3 INCHES OF RAIN HAD FALLEN OVER THE AREA SINCE 4 PM.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS
  VERMILION AND EDGAR COUTNIES FOR THE NEXT HOUR OR SO. RAINFALL
  AMOUNTS WILL LIKELY RANGE FROM 3 TO 4 INCHES BY 6 PM. THESE
  RAINFALL AMOUNTS WILL CONTINUE TO PRODUCE FLASH FLOODING.

EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING ON FLOOD PRONE
HIGHWAYS...STREETS AND UNDERPASSES. NEVER WALK OR DRIVE INTO FLOODED
AREAS AND ABANDON VEHICLES CAUGHT IN RISING WATERS.

EXCESSIVE RAINFALL WILL CAUSE FLOODING NEAR STREAMS...CREEKS AND
NEARBY FARMLAND. BE ESPECIALLY CAUTIOUS ON COUNTY ROADS AND IN LOW
LYING AREAS. NEVER CROSS AREAS IN WHICH WATER COVERS THE ROADS.

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 4025 8753 3949 8754 3949 8794 4025 8793

BYRD
NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 12, 2:01 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	44 min
Apr 12, 2:30 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Shelby	45 min
Apr 12, 3:09 PM CDT	Severe Thunderstorm Warning	ILX	Moultrie, Shelby	51 min
Apr 12, 3:17 PM CDT	Severe Thunderstorm Warning	ILX	Effingham	28 min
Apr 12, 3:37 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Douglas, Edgar, Vermilion	53 min
Apr 12, 3:47 PM CDT	Severe Thunderstorm Warning	ILX	Cumberland, Effingham	43 min
Apr 12, 3:55 PM CDT	Tornado Warning	ILX	Champaign, Douglas	35 min
Apr 12, 4:06 PM CDT	Severe Thunderstorm Warning	ILX	Coles	54 min
Apr 12, 4:31 PM CDT	Severe Thunderstorm Warning	ILX	Edgar, Vermilion	59 min
Apr 12, 5:13 PM CDT	Severe Thunderstorm Warning	ILX	Clay	47 min
Apr 12, 5:25 PM CDT	Severe Thunderstorm Warning	ILX	Richland	50 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; radar from the NEXRAD Level II archive.