Alert archive / Illinois / Flash Flood Warnings in 2009

Flash Flood Warning 21, NWS Lincoln, IL

May 15, 20098 counties in Illinois

NWS Lincoln, IL issued this flash flood warning at May 15, 2009, 7:35 PM CDT for 8 counties in Illinois. It was in force for 4 hr. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 15, 2009, 7:35 PM CDT (00:35 UTC)
Expired: May 15, 2009, 11:41 PM CDT
In force: 4 hr
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Flood severity: None

Counties Fulton County, IL, Knox County, IL, Marshall County, IL, Peoria County, IL, Schuyler County, IL, Stark County, IL, Tazewell County, IL, Woodford County, IL

The radar

The Lincoln radar (KILX), 72 km from the middle of the area, began a volume at 00:37 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.

What was reported inside it

Time	Report	Where	Remark
May 15, 8:00 PM CDT	HEAVY RAIN 2.17	Peoria, IL
May 15, 8:59 PM CDT	FLASH FLOOD	Roanoke, IL	1 FOOT OVER WEST HIGH STREET IN ROANOKE
May 15, 9:04 PM CDT	HEAVY RAIN 4.14	Gilson, IL	24 HOUR TOTAL...SWOP
May 15, 9:45 PM CDT	FLASH FLOOD	2 E Groveland, IL	WATER FLOWING OFF FARM FIELDS ONTO ROADS...ROAD DITCHES OVERFLOWING
May 15, 11:00 PM CDT	HEAVY RAIN 3.24	Galesburg, IL	23 HOUR RAINFALL...SWOP

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.6 hours before the alert went out and 119 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: 37 J/kg
Mixed-layer CIN: -278 J/kg
Mixed-layer LCL: 1349 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 182 m²/s²
0-3 km storm-relative helicity: 238 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KILX 160035
FFWILX
ILC057-095-123-143-169-175-179-203-160630-
/O.NEW.KILX.FF.W.0021.090516T0035Z-090516T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
735 PM CDT FRI MAY 15 2009

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FULTON COUNTY IN WEST CENTRAL ILLINOIS...
  KNOX COUNTY IN WEST CENTRAL ILLINOIS...
  MARSHALL COUNTY IN CENTRAL ILLINOIS...
  PEORIA COUNTY IN CENTRAL ILLINOIS...
  SCHUYLER COUNTY IN WEST CENTRAL ILLINOIS...
  STARK COUNTY IN NORTH CENTRAL ILLINOIS...
  TAZEWELL COUNTY IN CENTRAL ILLINOIS...
  WOODFORD COUNTY IN CENTRAL ILLINOIS...

* UNTIL 130 AM CDT SATURDAY.

* AT 730 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  NUMEROUS SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAINFALL       
  CONTINUES ACROSS THE WARNED AREA. RADAR ESTIMATED BETWEEN 2 AND
  4 INCHES OF RAIN ACROSS MUCH OF THE ILLINOIS RIVER VALLEY SINCE
  SUNRISE ESPECIALLY NORTHWEST OF THE ILLINOIS RIVER WITH LOCAL 4 TO 
  7 INCH AMOUNTS IN WESTERN PARTS OF KNOX...FULTON AND SCHUYLER      
  COUNTIES. UP TO AN ADDITIONAL 1 INCH OF RAIN IS LIKELY WITH LOCAL
  1.5 TO 2 INCH AMOUNTS POSSIBLE THIS EVENING. PARTS OF HIGHWAY 150
  WERE FLOODED FROM BRIMFIELD WEST TO GALESBURG. SEVERAL SECONDARY   
  ROADS ACROSS KNOX COUNTY BECAME FLOODED TODAY.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CANTON...EUREKA...GALESBURG...LACON...LEWISTOWN...PEKIN...PEORIA...
  RUSHVILLE...ABINGDON...ALTONA...ASTORIA...AVON...BARTONVILLE...
  BELLEVUE...BRADFORD...BRIMFIELD...BROOKLYN...BROWNING...CAMP
  GROVE...CASTLETON...CHILLICOTHE...CREVE COEUR...CUBA...DEER
  CREEK...DELAVAN...DUNLAP...EAST PEORIA...EL PASO...ELMIRA AND
  ELMORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

REPORT ANY FLOODING TO YOUR LOCAL EMERGENCY MANAGER...OR THE NEAREST
LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE
OFFICE IN LINCOLN.

&&

LAT...LON 4124 8965 4115 8963 4111 8906 4093 8905
      4093 8893 4067 8899 4059 8928 4034 8927
      4033 8971 4044 8973 4045 8993 3998 9054
      4004 9068 4010 9071 4011 9093 4029 9091
      4028 9046 4116 9044 4116 8989 4124 8987

$$

HUETTL

1 follow-up statement

000 
WGUS73 KILX 160441
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1141 PM CDT FRI MAY 15 2009

ILC057-095-123-143-169-175-179-203-160450-
/O.CAN.KILX.FF.W.0021.000000T0000Z-090516T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FULTON-SCHUYLER-MARSHALL-KNOX-TAZEWELL-WOODFORD-PEORIA-STARK-
1141 PM CDT FRI MAY 15 2009

...THE FLASH FLOOD WARNING FOR EXCESSIVE RAIN OF HAS BEEN CANCELLED
FOR STARK...PEORIA...WOODFORD...TAZEWELL...KNOX...MARSHALL...SCHUYLER
AND FULTON COUNTIES...

ALTHOUGH THE HEAVY RAINFALL THREAT HAS ENDED...THE FLOOD THREAT HAS
NOT. AN AREAL FLOOD WARNING...WHICH WAS JUST ISSUED...REPLACED THE 
FLASH FLOOD WARNING WHICH WAS IN EFFECT.


LAT...LON 4124 8965 4115 8963 4111 8906 4093 8905
      4093 8893 4067 8899 4059 8928 4034 8927
      4033 8971 4044 8973 4045 8993 3998 9054
      4004 9068 4010 9071 4011 9093 4029 9091
      4028 9046 4116 9044 4116 8989 4124 8987

$$

SMITH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 7:04 PM CDT	Flash Flood Warning	ILX	Champaign, Piatt, Vermilion	6 hr
May 15, 7:04 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Macon, Shelby	41 min
May 15, 7:19 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	41 min
May 15, 7:50 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	40 min
May 15, 7:57 PM CDT	Flash Flood Warning	ILX	Christian, Moultrie, Shelby	6 hr
May 15, 8:18 PM CDT	Flash Flood Warning	ILX	Clark, Coles, Cumberland, Douglas, Edgar	6 hr
May 15, 8:48 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Moultrie, Shelby	42 min
May 15, 8:55 PM CDT	Severe Thunderstorm Warning	ILX	Edgar, Vermilion	20 min
May 15, 9:21 PM CDT	Areal Flood Advisory	ILX	Effingham	3 hr
May 15, 9:39 PM CDT	Areal Flood Advisory	ILX	Clay, Jasper, Richland	3 hr
May 15, 9:50 PM CDT	Special Weather Statement	ILX	Clark	40 min
May 15, 10:22 PM CDT	Areal Flood Advisory	ILX	Crawford, Lawrence	5 hr
May 15, 10:44 PM CDT	Areal Flood Warning	ILX	Fulton, Knox, McLean, Marshall, Mason, Peoria and 3 more	6 days
May 15, 11:31 PM CDT	Areal Flood Warning	ILX	Cass, DeWitt, Douglas, Logan, Macon, Mason and 6 more	35 days
May 16, 12:45 AM CDT	Areal Flood Warning	ILX	Clay, Crawford, Effingham, Jasper, Lawrence, Richland	146 days
May 16, 12:59 AM CDT	Areal Flood Warning	ILX	Champaign, Logan, Vermilion	172 days
May 16, 1:56 AM CDT	Areal Flood Warning	ILX	Christian, Clark, Coles, Cumberland, Douglas, Edgar and 2 more	186 days
May 16, 2:17 AM CDT	River Flood Warning	ILX	Vermilion	50 hr
May 16, 6:58 AM CDT	River Flood Warning	ILX	Crawford, Jasper	38 hr
May 16, 10:23 AM CDT	River Flood Warning	ILX	Cass, Mason, Menard	6 days
May 16, 11:50 AM CDT	Areal Flood Warning	ILX	Cass, DeWitt, Logan, McLean, Macon, Mason and 6 more	189 days
May 16, 1:03 PM CDT	Areal Flood Warning	ILX	Champaign, Logan, Vermilion	224 days
May 16, 6:16 PM CDT	Areal Flood Warning	ILX	Logan, Mason	225 days

Nearby

Flash Flood Warnings in Illinois, 2009 Every flash flood warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.