Alert archive / Illinois / Flash Flood Warnings in 2015

Flash Flood Warning 67, NWS Lincoln, IL

September 1, 2015Vermilion County, Illinois

NWS Lincoln, IL issued this flash flood warning at Sep 1, 2015, 9:34 AM CDT for Vermilion County, Illinois. It was in force for 3 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
Sep 1, 2015, 9:34 AM CDT (14:34 UTC)
Expired
Sep 1, 2015, 12:30 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 Indianapolis radar (KIND), 137 km from the middle of the area, began a volume at 14:33 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 12:00Z, 2.6 hours before the alert went out and 78 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 2015-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1380 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 2015-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.1939Sfc1 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
1380 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
1171 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
19 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.

135 
WGUS53 KILX 011434
FFWILX
ILC183-011730-
/O.NEW.KILX.FF.W.0067.150901T1434Z-150901T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
934 AM CDT TUE SEP 1 2015

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 1230 PM CDT
    
* AT 932 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING 
  HEAVY RAIN ACROSS THE WARNED AREA. RAINFALL AMOUNTS OF 3 TO 5 
  INCHES HAVE BEEN ESTIMATED BY DOPPLER RADAR SINCE 7 AM...NORTH OF 
  I-74 BETWEEN ROYAL AND POTOMAC. ADDITIONAL THUNDERSTORMS FURTHER 
  NORTH HAVE PRODUCED 2 TO 3 INCHES OF RAIN SOUTHWEST OF HOOPESTON. 
  FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

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

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE LIKELY IN THE 
WARNED AREA...ESPECIALLY SOUTHWEST OF HOOPESTON. 

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 199 AND 209.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH. 

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4018 8753 4007 8794 4024 8793 4049 8775
      4049 8753

$$
GEELHART
2 follow-up statements
315 
WGUS73 KILX 011651
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1151 AM CDT TUE SEP 1 2015

ILC183-011730-
/O.CON.KILX.FF.W.0067.000000T0000Z-150901T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VERMILION-
1151 AM CDT TUE SEP 1 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT FOR
NORTHERN VERMILION COUNTY...

AT 1149 AM CDT...DOPPLER RADAR INDICATED MOST OF THE THUNDERSTORMS 
HAD WEAKENED OVER THE WARNED AREA. RADAR ESTIMATED THAT 4 TO 5 
INCHES OF RAIN HAS OCCURRED THIS MORNING IN AN AREA FROM HOOPESTON 
TO THE CHAMPAIGN COUNTY BORDER ALONG I-74. FLOODING FROM THIS 
RAINFALL WILL BEGIN TO SUBSIDE EARLY THIS AFTERNOON. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
HOOPESTON...ROSSVILLE...POTOMAC...FITHIAN...MUNCIE...BISMARCK...
HENNING...COLLISON...ALVIN AND MIDDLE FORK WILDLIFE AREA.

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 199 AND 205.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH. 

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4017 8768 4007 8794 4024 8793 4049 8770
      4049 8753 4036 8753

$$
GEELHART
250 
WGUS73 KILX 011729
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1229 PM CDT TUE SEP 1 2015

ILC183-011739-
/O.EXP.KILX.FF.W.0067.000000T0000Z-150901T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VERMILION-
1229 PM CDT TUE SEP 1 2015

...THE FLASH FLOOD WARNING FOR NORTHERN VERMILION COUNTY WILL EXPIRE
AT 1230 PM CDT...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT.

LAT...LON 4017 8768 4007 8794 4024 8793 4049 8770
      4049 8753 4036 8753

$$
GEELHART

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 7:43 AM CDTFlash Flood WarningILXClark, Crawford, Cumberland, Jasper3 hr
Sep 1, 8:33 AM CDTAreal Flood AdvisoryILXChampaign, Douglas, Edgar, Vermilion3 hr
Sep 1, 8:40 AM CDTFlash Flood WarningILXClark, Edgar3 hr
Sep 1, 10:43 AM CDTAreal Flood WarningILXClark, Crawford, Cumberland, Jasper3 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.