Alert archive / Illinois / Flash Flood Warnings in 2015

Flash Flood Warning 49, NWS Lincoln, IL

July 8, 2015McLean County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 8, 2015, 10:05 PM CDT for McLean County, Illinois. It was in force for 6 hr. 3 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
Jul 8, 2015, 10:05 PM CDT (03:05 UTC)
Expired
Jul 9, 2015, 4:00 AM CDT
In force
6 hr
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Flood severity
None

County McLean County, IL

The radar

The Lincoln radar (KILX), 67 km from the middle of the area, began a volume at 03:06 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

TimeReportWhereRemark
Jul 8, 10:21 PM CDTHEAVY RAIN 2.35E Bloomington, IL
Jul 8, 11:35 PM CDTHEAVY RAIN 3.133 Ne Bloomington, IL
Jul 8, 11:37 PM CDTHEAVY RAIN 2.44N Normal, IL

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

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.1 hours before the alert went out and 44 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-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2015-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2015-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 157 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
456 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
157 m²/s²
0-3 km storm-relative helicity
225 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.

024 
WGUS53 KILX 090305
FFWILX
ILC113-090900-
/O.NEW.KILX.FF.W.0049.150709T0305Z-150709T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1005 PM CDT WED JUL 8 2015

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 400 AM CDT

* AT 1004 PM CDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING
  ACROSS THE WARNED AREA. FLASH FLOODING IS ALREADY OCCURRING.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BLOOMINGTON...NORMAL...LE ROY...HEYWORTH...LEXINGTON...CHENOA...
  COLFAX...DOWNS...MCLEAN...SAYBROOK...TOWANDA...PLEASANT HILL...
  BELLFLOWER...ARROWSMITH...CROPSEY...ELLSWORTH...COOKSVILLE...
  ANCHOR...BLOOMINGTON AIRPORT AND MORAINE VIEW STATE PARK.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 39 BETWEEN MILE MARKERS 0 AND 1.
 INTERSTATE 55 BETWEEN MILE MARKERS 143 AND 162...AND BETWEEN MILE
MARKERS 164 AND 186.
 INTERSTATE 74 BETWEEN MILE MARKERS 128 AND 155.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4062 8858 4061 8846 4028 8846 4029 8926
      4036 8926 4076 8871 4075 8858

$$
1 follow-up statement
136 
WGUS73 KILX 090810
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
310 AM CDT THU JUL 9 2015

ILC113-090900-
/O.CON.KILX.FF.W.0049.000000T0000Z-150709T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MCLEAN-
310 AM CDT THU JUL 9 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 AM CDT FOR
MCLEAN COUNTY...

AT 308 AM CDT...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING IN 
BLOOMINGTON STILL OCCURRING ON MARTIN LUTHER KING JUNIOR DRIVE 
BETWEEN WEST MARKET STREET AND WHITE OAK ROAD. THE ROAD IS STILL 
CLOSED AND COVERED WITH DEEP WATER.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BLOOMINGTON...NORMAL...LE ROY...HEYWORTH...LEXINGTON...CHENOA...
COLFAX...DOWNS...MCLEAN...SAYBROOK...TOWANDA...PLEASANT HILL...
BELLFLOWER...ARROWSMITH...CROPSEY...ELLSWORTH...COOKSVILLE...
ANCHOR...BLOOMINGTON AIRPORT AND MORAINE VIEW STATE PARK.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 39 BETWEEN MILE MARKERS 0 AND 1.
 INTERSTATE 55 BETWEEN MILE MARKERS 143 AND 162...AND BETWEEN MILE
MARKERS 164 AND 186.
 INTERSTATE 74 BETWEEN MILE MARKERS 128 AND 155.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4062 8858 4061 8846 4028 8846 4029 8926
      4036 8926 4076 8871 4075 8858

$$

SHIMON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 9:24 PM CDTAreal Flood AdvisoryILXMcLean3 hr
Jul 8, 10:36 PM CDTFlash Flood WarningILXChampaign3 hr
Jul 9, 3:53 AM CDTAreal Flood WarningILXMcLean6 hr
Jul 9, 8:28 AM CDTRiver Flood WarningILXCass, Mason, Menard6 days
Jul 9, 8:28 AM CDTRiver Flood WarningILXCass, Mason8 days
Jul 9, 8:32 AM CDTRiver Flood WarningILXMcLean, Tazewell, Woodford37 hr
Jul 9, 8:36 AM CDTRiver Flood WarningILXMason, Menard37 hr
Jul 9, 10:14 AM CDTRiver Flood WarningILXClay, Richland3 days

Nearby

Flash Flood Warnings in Illinois, 2015Every flash flood warning in 2015

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.