Alert archive / Illinois / Flash Flood Warnings in 1998

Flash Flood Warning 5, NWS Lincoln, IL

May 19, 1998Edgar County, Illinois

NWS Lincoln, IL issued this flash flood warning at May 19, 1998, 8:37 PM CDT for Edgar County, Illinois. It was in force for 113 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 19, 1998, 8:37 PM CDT (01:37 UTC)
Expired: May 19, 1998, 10:30 PM CDT
In force: 113 min
Issued by: NWS Lincoln, IL
Area: Whole counties

County Edgar County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.6 hours before the alert went out and 90 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: 4287 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1245 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 41 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSPI 200137
FFWSPI
ILC045-200330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
837 PM CDT TUE MAY 19 1998

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR
  EDGAR COUNTY IN EAST CENTRAL ILLINOIS

* UNTIL 1030 PM CDT


* A LINE OF THUNDERSTORMS PRODUCING UP TO 4 INCHES OF RAIN.
COOPERATIVE OBSERVER IN CHRISMAN REPORTED 4.61 INCHES WITH FLOODING
OF LOW LYING AREAS.

* THE THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS THE AREA FOR THE
NEXT HOUR.

MOVE TO HIGHER GROUND IMMEDIATELY IF FLOODWATERS THREATEN AND AVOID
DRIVING ACROSS FLOODED ROADS.

KETCHAM


&

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 7:02 PM CDT	Flash Flood Warning	ILX	Vermilion	3 hr
May 19, 7:11 PM CDT	Severe Thunderstorm Warning	ILX	Piatt	34 min
May 19, 7:18 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Menard	42 min
May 19, 7:35 PM CDT	Severe Thunderstorm Warning	ILX	Champaign	40 min
May 19, 7:45 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Macon	45 min
May 19, 8:31 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Douglas, Moultrie	44 min
May 19, 8:51 PM CDT	Tornado Warning	ILX	Coles	39 min
May 19, 9:12 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Edgar	48 min
May 19, 9:48 PM CDT	Flash Flood Warning	ILX	Edgar, Vermilion	2 hr
May 19, 9:56 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham, Jasper	49 min
May 19, 10:10 PM CDT	Severe Thunderstorm Warning	ILX	Richland	35 min
May 20, 12:06 AM CDT	Flash Flood Warning	ILX	Vermilion	114 min
May 20, 1:51 AM CDT	Flash Flood Warning	ILX	Vermilion	5 hr
May 20, 9:11 AM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	34 min
May 20, 9:24 AM CDT	Severe Thunderstorm Warning	ILX	Cass, Schuyler	36 min
May 20, 9:56 AM CDT	Severe Thunderstorm Warning	ILX	Sangamon	49 min
May 20, 12:55 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence	35 min
May 20, 1:39 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Schuyler	51 min
May 20, 2:09 PM CDT	Severe Thunderstorm Warning	ILX	Mason	36 min
May 20, 2:16 PM CDT	Severe Thunderstorm Warning	ILX	Schuyler	44 min

Nearby

Flash Flood Warnings in Illinois, 1998 Every flash flood warning in 1998

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.