Alert archive / Illinois / Flash Flood Warnings in 2003

Flash Flood Warning 30, NWS Lincoln, IL

July 9, 2003Mason County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 9, 2003, 7:55 PM CDT for Mason 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: Jul 9, 2003, 7:55 PM CDT (00:55 UTC)
Expired: Jul 10, 2003, 1:30 AM CDT
In force: 6 hr
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

County Mason County, IL

The radar

The Lincoln radar (KILX), 49 km from the middle of the area, began a volume at 00:56 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, 0.9 hours before the alert went out and 110 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: 3530 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 1110 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 146 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 9.6

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 100055
FFWILX
ILC125-100630-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
755 PM CDT WED JUL 9 2003

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MASON COUNTY IN CENTRAL ILLINOIS

* UNTIL 130 AM CDT

* AT 754 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN CONTINUES TO FALL ACROSS MUCH OF MASON COUNTY 
  THIS EVENING. RADAR ESTIMATES THAT UPWARDS OF 3 INCHES OF RAIN 
  CONTINUES TO FALL PER HOUR BETWEEN HAVANA AND BATH...WITH A STORM 
  TOTAL OF 6 TO 8 INCHES OF RAINFALL IN THAT AREA SINCE EARLIER  
  TODAY. WIDESPREAD RAIN AMOUNTS FOR THE DAY HAVE REACHED 3 TO 4 
  INCHES ACROSS MUCH OF MASON COUNTY.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS MASON 
  COUNTY THIS EVENING. RAINFALL AMOUNTS WILL LIKELY RANGE FROM 4 TO 
  6 INCHES ACROSS MUCH OF THE COUNTY...WITH LOCALLY HIGHER AMOUNTS 
  IN EXCESS OF 8 INCHES...ESPECIALLY BETWEEN HAVANA AND BATH...
  POSSIBLE. THESE RAINFALL AMOUNTS WILL LIKELY PRODUCE FLASH 
  FLOODING.

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 4038 8974 4015 8964 4012 9028 4035 9002

$$

PLAHMER

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 7:02 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	43 min
Jul 9, 7:04 PM CDT	Severe Thunderstorm Warning	ILX	Tazewell	56 min
Jul 9, 7:12 PM CDT	Severe Thunderstorm Warning	ILX	Tazewell	48 min
Jul 9, 7:13 PM CDT	Severe Thunderstorm Warning	ILX	Mason	62 min
Jul 9, 7:22 PM CDT	Flash Flood Warning	ILX	Edgar	6 hr
Jul 9, 7:24 PM CDT	Severe Thunderstorm Warning	ILX	Peoria	66 min
Jul 9, 8:00 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt	60 min
Jul 9, 8:00 PM CDT	Tornado Warning	ILX	Mason	60 min
Jul 9, 8:21 PM CDT	Flash Flood Warning	ILX	Piatt	6 hr
Jul 9, 8:40 PM CDT	Flash Flood Warning	ILX	DeWitt, Logan	5 hr
Jul 9, 9:05 PM CDT	Flash Flood Warning	ILX	Peoria, Tazewell	6 hr
Jul 9, 9:14 PM CDT	Flash Flood Warning	ILX	Fulton, Knox	6 hr
Jul 9, 9:29 PM CDT	Flash Flood Warning	ILX	Douglas	6 hr
Jul 9, 9:54 PM CDT	Tornado Warning	ILX	Fulton	66 min
Jul 9, 9:55 PM CDT	Severe Thunderstorm Warning	ILX	Schuyler	50 min
Jul 9, 10:22 PM CDT	Flash Flood Warning	ILX	Cumberland	6 hr
Jul 9, 11:15 PM CDT	Flash Flood Warning	ILX	Champaign, McLean, Vermilion, Woodford	7 hr
Jul 10, 1:08 AM CDT	Flash Flood Warning	ILX	DeWitt, Logan, Mason, Piatt	5 hr
Jul 10, 1:30 AM CDT	Flash Flood Warning	ILX	Edgar	4 hr

Nearby

Flash Flood Warnings in Illinois, 2003 Every flash flood warning in 2003

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.