Alert archive / Illinois / Flash Flood Warnings in 2009

Flash Flood Warning 13, NWS Lincoln, IL

May 15, 2009Knox County, Peoria County, Stark County, Illinois

NWS Lincoln, IL issued this flash flood warning at May 15, 2009, 10:28 AM CDT for Knox County, Peoria County, Stark County, Illinois. It was in force for 5 hr. 7 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, 10:28 AM CDT (15:28 UTC)
Expired: May 15, 2009, 3:00 PM CDT
In force: 5 hr
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Flood severity: None

Counties Knox County, IL, Peoria County, IL, Stark County, IL

The radar

The Quad Cities radar (KDVN), 89 km from the middle of the area, began a volume at 15:28 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, 10:45 AM CDT	FLASH FLOOD	Trivoli, IL	SEVERAL INCHES OF WATER FLOWING ACROSS A ROAD NEAR TRIVOLI
May 15, 10:55 AM CDT	HEAVY RAIN 1.01	Altona, IL	RAINFALL SINCE 6 AM
May 15, 11:00 AM CDT	HEAVY RAIN 2	Galesburg, IL	RAINFALL SINCE 5 AM
May 15, 11:35 AM CDT	HEAVY RAIN 1.41	Wataga, IL	RAINFALL SINCE MIDNIGHT. SWOP REPORT.
May 15, 12:30 PM CDT	FLASH FLOOD	2 Se Dahinda, IL	SPOON RIVER AT ROUTE 150 OUT OF ITS BANKS. MANY DITCHES OVERFLOWING WITH WATER AND FIELDS FLOODED ALONG ROUTE 150 IN WESTERN PEORIA AND EASTERN KNOX COUNTIES.
May 15, 12:30 PM CDT	FLASH FLOOD	2 W Brimfield, IL	ROUTE 150 WESTBOUND LANE UNDER WATER. SWOP REPORT
May 15, 12:35 PM CDT	FLASH FLOOD	1 E Brimfield, IL	WATER COVERING SECTIONS OF EASTBOUND HIGHWAY 150. SWOP REPORT.

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 12:00Z, 3.5 hours before the alert went out and 86 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: 1193 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 300 m²/s²
0-3 km storm-relative helicity: 578 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 151528
FFWILX
ILC095-143-175-152000-
/O.NEW.KILX.FF.W.0013.090515T1528Z-090515T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1028 AM CDT FRI MAY 15 2009

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN KNOX COUNTY IN WEST CENTRAL ILLINOIS...
  STARK COUNTY IN NORTH CENTRAL ILLINOIS...
  WESTERN PEORIA COUNTY IN CENTRAL ILLINOIS...

* UNTIL 300 PM CDT.

* AT 1023 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL MOVING ACROSS THE
  WARNED AREA. RAINFALL AMOUNTS ARE ESTIMATED TO BE GENERALLY 2 TO 3
  INCHES IN THIS AREA AND ADDITIONAL AMOUNTS OF 1 TO 2 INCHES WILL
  BE POSSIBLE THROUGH EARLY AFTERNOON.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  GALESBURG...ALTONA...BRADFORD...BRIMFIELD...CASTLETON...ELMIRA...
  ELMORE...ELMWOOD...GILSON...HANNA CITY...KNOXVILLE...LA FAYETTE...
  LAURA...ONEIDA...OSCEOLA...PRINCEVILLE...RIO...TOULON...TRIVOLI...
  VICTORIA...WATAGA...WEST JERSEY...WILLIAMSFIELD...WYOMING...
  DAHINDA...DUNCAN...HENDERSON...KICKAPOO...LOMBARDVILLE AND MONICA.

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 34 AND 82.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

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 8964 4098 8965 4063 8980 4063 8981
      4064 8999 4085 9000 4087 9045 4116 9044
      4115 8987 4116 8988 4124 8987

$$

2 follow-up statements

000 
WGUS73 KILX 151711
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1211 PM CDT FRI MAY 15 2009

ILC095-143-175-152000-
/O.CON.KILX.FF.W.0013.000000T0000Z-090515T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KNOX-PEORIA-STARK-
1211 PM CDT FRI MAY 15 2009

...A FLASH FLOOD WARNING FOR EXCESSIVE RAIN REMAINS IN EFFECT UNTIL
300 PM CDT FOR STARK...WESTERN PEORIA AND KNOX COUNTIES...

AT 1208 PM CDT...RAINFALL CONTINUED ACROSS THE WARNED AREA.  ADDITIONAL
HEAVY RAINFALL IS CURRENTLY MOVING INTO WESTERN ILLINOIS FROM
NORTHEAST ILLINOIS AND MAY PRODUCE UP TO 3 INCHES OF ADDITIONAL
RAINFALL.

LOCATIONS IMPACTED INCLUDE ALTONA...BRADFORD...BRIMFIELD...
CASTLETON...ELMIRA...ELMORE...ELMWOOD...GALESBURG...GILSON...HANNA
CITY...KNOXVILLE...LA FAYETTE...LAURA...ONEIDA...OSCEOLA...
PRINCEVILLE...RIO...TOULON...TRIVOLI...VICTORIA...WATAGA...WEST
JERSEY...WILLIAMSFIELD AND WYOMING

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 4124 8964 4098 8965 4063 8980 4063 8981
      4064 8999 4085 9000 4087 9045 4116 9044
      4115 8987 4116 8988 4124 8987

$$

BARKER

000 
WGUS73 KILX 151714 CCA
FFSILX

FLASH FLOOD STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE LINCOLN IL
1214 PM CDT FRI MAY 15 2009

ILC095-143-175-152000-
/O.CON.KILX.FF.W.0013.000000T0000Z-090515T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KNOX-PEORIA-STARK-
1214 PM CDT FRI MAY 15 2009

...A FLASH FLOOD WARNING FOR EXCESSIVE RAIN REMAINS IN EFFECT UNTIL
300 PM CDT FOR STARK...WESTERN PEORIA AND KNOX COUNTIES...

AT 1208 PM CDT...RAINFALL CONTINUED ACROSS THE WARNED AREA.  ADDITIONAL
HEAVY RAINFALL IS CURRENTLY MOVING INTO WESTERN ILLINOIS FROM
NORTHEAST MISSOURI AND MAY PRODUCE UP TO 3 INCHES OF ADDITIONAL
RAINFALL.

LOCATIONS IMPACTED INCLUDE ALTONA...BRADFORD...BRIMFIELD...
CASTLETON...ELMIRA...ELMORE...ELMWOOD...GALESBURG...GILSON...HANNA
CITY...KNOXVILLE...LA FAYETTE...LAURA...ONEIDA...OSCEOLA...
PRINCEVILLE...RIO...TOULON...TRIVOLI...VICTORIA...WATAGA...WEST
JERSEY...WILLIAMSFIELD AND WYOMING

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 4124 8964 4098 8965 4063 8980 4063 8981
      4064 8999 4085 9000 4087 9045 4116 9044
      4115 8987 4116 8988 4124 8987

$$

BARKER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 9:03 AM CDT	Flash Flood Warning	ILX	Fulton, Knox	6 hr
May 15, 10:55 AM CDT	River Flood Warning	ILX	Fulton	6 days
May 15, 10:58 AM CDT	River Flood Warning	ILX	McLean, Tazewell, Woodford	56 hr
May 15, 11:32 AM CDT	Areal Flood Advisory	ILX	Fulton, Marshall, Peoria, Tazewell, Woodford	6 hr
May 15, 2:35 PM CDT	Flash Flood Warning	ILX	Fulton, Knox, Peoria, Stark	6 hr
May 15, 2:38 PM CDT	Special Weather Statement	ILX	Schuyler	67 min
May 15, 3:32 PM CDT	Flash Flood Warning	ILX	Fulton, Schuyler	6 hr
May 15, 3:45 PM CDT	Tornado Warning	ILX	Cass, Morgan, Scott	45 min
May 15, 4:00 PM CDT	River Flood Warning	ILX	Cass, Mason	9 days
May 15, 4:17 PM CDT	Flash Flood Warning	ILX	Marshall, Peoria, Tazewell, Woodford	6 hr
May 15, 4:25 PM CDT	Tornado Warning	ILX	Cass, Morgan	35 min
May 15, 4:47 PM CDT	Areal Flood Advisory	ILX	Mason, Tazewell	6 hr
May 15, 4:49 PM CDT	Tornado Warning	ILX	Cass, Menard, Sangamon	26 min
May 15, 5:14 PM CDT	Tornado Warning	ILX	Logan, Menard, Sangamon	46 min
May 15, 5:25 PM CDT	Areal Flood Advisory	ILX	McLean, Tazewell, Woodford	6 hr
May 15, 5:38 PM CDT	Areal Flood Advisory	ILX	Cass, Mason, Menard	6 hr
May 15, 5:40 PM CDT	Tornado Warning	ILX	Logan, Macon, Sangamon	50 min
May 15, 5:46 PM CDT	Flash Flood Warning	ILX	McLean, Tazewell, Woodford	5 hr
May 15, 5:54 PM CDT	Flash Flood Warning	ILX	Cass, Logan, Mason, Menard, Morgan, Sangamon and 2 more	6 hr
May 15, 5:58 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Morgan, Scott	47 min
May 15, 6:06 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	54 min
May 15, 6:11 PM CDT	Tornado Warning	ILX	Macon	35 min
May 15, 6:16 PM CDT	Special Weather Statement	ILX	Mason, Menard	59 min
May 15, 6:26 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Menard, Sangamon	30 min
May 15, 6:27 PM CDT	Flash Flood Warning	ILX	DeWitt, Macon	6 hr
May 15, 6:38 PM CDT	Tornado Warning	ILX	Champaign, Vermilion	31 min
May 15, 6:42 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Logan, Sangamon	48 min
May 15, 6:42 PM CDT	Tornado Warning	ILX	Champaign, Macon, Piatt	48 min

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.