Alert archive / Illinois / Flash Flood Warnings in 2002

Flash Flood Warning 44, NWS Lincoln, IL

May 12, 20025 counties in Illinois

NWS Lincoln, IL issued this flash flood warning at May 12, 2002, 5:44 AM CDT for 5 counties in 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 12, 2002, 5:44 AM CDT (10:44 UTC)
Expired: May 12, 2002, 11:30 AM CDT
In force: 6 hr
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

Counties Coles County, IL, Douglas County, IL, Moultrie County, IL, Piatt County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 79 km from the middle of the area, began a volume at 10:47 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 00:00Z, 10.7 hours before the alert went out and 39 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 639 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 475 m²/s²
0-3 km storm-relative helicity: 517 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 121044 CCA
FFWSPI
ILC029-041-139-147-173-121630-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTION TO DELETE MACON COUNTY...
NATIONAL WEATHER SERVICE LINCOLN IL
537 AM CDT SUN MAY 12 2002

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SHELBY COUNTY IN CENTRAL ILLINOIS
  MOULTRIE COUNTY IN CENTRAL ILLINOIS
  PIATT COUNTY IN CENTRAL ILLINOIS
  COLES COUNTY IN EAST CENTRAL ILLINOIS
  DOUGLAS COUNTY IN EAST CENTRAL ILLINOIS

* UNTIL 1130 AM CDT

* AT 537 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN HAS FALLEN FROM TAYLORVILLE TO TUSCOLA. 1 TO 2
  INCHES OF RAIN HAS BEEN ESTIMATED SINCE 430 AM.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE FROM 
  SHELBYVILLE TO TUSCOLA. ADDITIONAL RAINFALL AMOUNTS WILL LIKELY 
  RANGE FROM 1 TO 2 INCHES BY 630 AM FOR A TOTAL OF 2 TO 4 INCHES IN 
  SOME LOCATIONS. THESE RAINFALL AMOUNTS WILL LIKELY PRODUCE FLASH 
  FLOODING.

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 4002 8876 4001 8849 3989 8847 3988 8797
          3942 8802 3939 8903 3978 8877

BYRD
NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 7:52 PM CDT	Severe Thunderstorm Warning	ILX	Knox	38 min
May 11, 8:02 PM CDT	Severe Thunderstorm Warning	ILX	Stark	58 min
May 12, 1:43 AM CDT	Severe Thunderstorm Warning	ILX	Schuyler	47 min
May 12, 2:10 AM CDT	Flash Flood Warning	ILX	Schuyler	6 hr
May 12, 2:24 AM CDT	Flash Flood Warning	ILX	Cass, Mason, Menard	6 hr
May 12, 3:58 AM CDT	Flash Flood Warning	ILX	Christian, Logan, Macon, Morgan, Sangamon, Scott	6 hr
May 12, 5:42 AM CDT	Flash Flood Warning	ILX	Coles, Douglas, Macon, Moultrie, Piatt, Shelby	6 hr
May 12, 6:24 AM CDT	Flash Flood Warning	ILX	Edgar	5 hr
May 12, 7:12 AM CDT	Flash Flood Warning	ILX	Clark, Cumberland	7 hr
May 12, 10:56 AM CDT	Flash Flood Warning	ILX	Champaign, Vermilion	6 hr
May 12, 12:11 PM CDT	Flash Flood Warning	ILX	Clay, Crawford, Effingham, Jasper, Lawrence, Richland	6 hr
May 12, 5:21 PM CDT	Severe Thunderstorm Warning	ILX	Effingham, Jasper	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; radar from the NEXRAD Level II archive.