Alert archive / Illinois / Flash Flood Warnings in 2016

Flash Flood Warning 33, NWS Lincoln, IL

September 10, 2016Christian County, Shelby County, Illinois

NWS Lincoln, IL issued this flash flood warning at Sep 10, 2016, 5:35 AM CDT for Christian County, Shelby County, Illinois. It was in force for 4 hr. 4 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 10, 2016, 5:35 AM CDT (10:35 UTC)
Expired
Sep 10, 2016, 9:30 AM CDT
In force
4 hr
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Flood severity
None

Counties Christian County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 75 km from the middle of the area, began a volume at 10:39 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 10, 6:45 AM CDTHEAVY RAIN 2.43Pana, IL24 HOUR RAINFALL.
Sep 10, 6:45 AM CDTHEAVY RAIN 2.43Pana, IL24 HOUR RAINFALL. THE REPORTED OBSERVER LOCATION WAS PANA.
Sep 10, 7:00 AM CDTHEAVY RAIN 1.772 Ese Pana, ILCOCORAHS STATION 2 E PANA /IL-CN-8/.
Sep 10, 7:00 AM CDTHEAVY RAIN 2.253 S Assumption, ILCOCORAHS STATION 3 S ASSUMPTION /IL-CN-3/.

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, 10.6 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-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2016-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 237 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 00:00Z on 2016-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
237 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
606 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

711 
WGUS53 KILX 101035
FFWILX
ILC021-173-101430-
/O.NEW.KILX.FF.W.0033.160910T1035Z-160910T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
535 AM CDT SAT SEP 10 2016

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN CHRISTIAN COUNTY IN CENTRAL ILLINOIS...
  NORTHWESTERN SHELBY COUNTY IN CENTRAL ILLINOIS...

* UNTIL 930 AM CDT

* AT 532 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. TWO TO THREE INCHES OF RAIN HAS
  ALREADY FALLEN FROM JUST SOUTH OF MORRISONVILLE TO OWANECO TO
  ABOUT 4 MILES SOUTHEAST OF MOWEAQUA. FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  TAYLORVILLE...PANA...ASSUMPTION...MORRISONVILLE...ROSAMOND...
  OWANECO...PALMER AND VANDERVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3965 8882 3938 8901 3935 8953 3945 8953

$$

SMITH
1 follow-up statement
729 
WGUS73 KILX 101431
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
931 AM CDT SAT SEP 10 2016

ILC021-173-101437-
/O.EXP.KILX.FF.W.0033.000000T0000Z-160910T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHRISTIAN-SHELBY-
931 AM CDT SAT SEP 10 2016

...THE FLASH FLOOD WARNING FOR SOUTHERN CHRISTIAN AND NORTHWESTERN
SHELBY COUNTIES WILL EXPIRE AT 930 AM CDT...

THE MODERATE TO HEAVY RAINS ENDED OVER SOUTHERN CHRISTIAN AND
NORTHWESTERN SHELBY COUNTIES AROUND 630 AM. FLOODING HAS RECEDED BY
MID MORNING AND IS NO LONGER EXPECTED TO POSE A THREAT. STILL BE
CAUTIOUS OF ANY DEBRIS THAT MAY HAVE BEEN WASHED UP ON LOW LYING
ROADS FROM HIGHER WATERS EARLIER THIS MORNING.  

LAT...LON 3965 8882 3938 8901 3935 8953 3945 8953

$$

07

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 9, 7:15 PM CDTTornado Warning Tornado observedILXVermilion30 min
Sep 9, 7:17 PM CDTTornado WarningILXClark32 min
Sep 10, 4:17 AM CDTAreal Flood AdvisoryILXClay, Effingham3 hr
Sep 10, 5:59 AM CDTAreal Flood AdvisoryILXChampaign, Douglas, Edgar, Moultrie, Piatt, Vermilion3 hr
Sep 10, 7:22 AM CDTFlash Flood WarningILXChampaign, Vermilion4 hr

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.