Alert archive / Illinois / Flash Flood Warnings in 2016

Flash Flood Warning 32, NWS Lincoln, IL

September 9, 2016Vermilion County, Illinois

NWS Lincoln, IL issued this flash flood warning at Sep 9, 2016, 6:37 PM CDT for Vermilion County, Illinois. It was in force for 3 hr. 2 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
Sep 9, 2016, 6:37 PM CDT (23:37 UTC)
Expired
Sep 9, 2016, 9:30 PM CDT
In force
3 hr
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Flood severity
None

County Vermilion County, IL

The radar

The Lincoln radar (KILX), 129 km from the middle of the area, began a volume at 23:39 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
Sep 9, 7:00 PM CDTHEAVY RAIN 1.684 S Armstrong, ILMESONET STATION 4 S ARMSTRONG /C7268/. THE DURATION OF THE HEAVY RAIN EVENT WAS 6 HOURS.
Sep 9, 7:45 PM CDTHEAVY RAIN 1.684 S Armstrong, ILMESONET STATION 4 S ARMSTRONG /C7268/. THE DURATION OF THE HEAVY RAIN EVENT WAS 6 HOURS.

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 12:00Z, 11.6 hours before the alert went out and 67 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 12:00Z on 2016-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 61 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2016-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
61 J/kg
Mixed-layer CIN
-145 J/kg
Mixed-layer LCL
781 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
-115 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

056 
WGUS53 KILX 092337
FFWILX
ILC183-100230-
/O.NEW.KILX.FF.W.0032.160909T2337Z-160910T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
637 PM CDT FRI SEP 9 2016

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL VERMILION COUNTY IN EAST CENTRAL ILLINOIS...

* UNTIL 930 PM CDT

* AT 636 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  DANVILLE...OAKWOOD...ROSSVILLE...POTOMAC...FITHIAN...MUNCIE...
  BISMARCK...HENNING...VERMILION COUNTY AIRPORT...COLLISON...
  ALVIN AND MIDDLE FORK WILDLIFE AREA.

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 198 AND 207.
 
LAT...LON 4008 8794 4022 8794 4023 8793 4028 8793
      4044 8753 4019 8753

$$

BAK
1 follow-up statement
702 
WGUS73 KILX 100225
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
925 PM CDT FRI SEP 9 2016

ILC183-100235-
/O.EXP.KILX.FF.W.0032.000000T0000Z-160910T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VERMILION-
925 PM CDT FRI SEP 9 2016

...THE FLASH FLOOD WARNING FOR CENTRAL VERMILION COUNTY WILL EXPIRE
AT 930 PM CDT...

THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 4008 8794 4022 8794 4023 8793 4028 8793
      4044 8753 4019 8753

$$

AUTEN

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 9, 2:15 AM CDTDense Fog AdvisoryILXCass, Champaign, Christian, Clark, Coles, Cumberland and 21 more7 hr
Sep 9, 5:59 PM CDTFlash Flood WarningILXChampaign3 hr
Sep 9, 6:09 PM CDTTornado WarningILXChampaign36 min
Sep 9, 6:23 PM CDTTornado WarningILXClark, Cumberland52 min
Sep 9, 6:25 PM CDTTornado WarningILXVermilion35 min
Sep 9, 6:44 PM CDTTornado Warning Tornado observedILXChampaign, Vermilion31 min

Nearby

Flash Flood Warnings in Illinois, 2016Every flash flood warning in 2016

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.