Alert archive / Illinois / Flash Flood Warnings in 2015

Flash Flood Warning 73, NWS Lincoln, IL

September 18, 2015Peoria County, Tazewell County, Illinois

NWS Lincoln, IL issued this flash flood warning at Sep 18, 2015, 5:51 PM CDT for Peoria County, Tazewell County, Illinois. It was in force for 4 hr. 6 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 18, 2015, 5:51 PM CDT (22:51 UTC)
Expired
Sep 18, 2015, 9:45 PM CDT
In force
4 hr
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Flood severity
None

Counties Peoria County, IL, Tazewell County, IL

The radar

The Lincoln radar (KILX), 75 km from the middle of the area, began a volume at 22:54 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 18, 6:30 PM CDTHEAVY RAIN 2.62 Sw Alta, ILRAINFALL TOTAL SO FAR TODAY.
Sep 18, 6:30 PM CDTHEAVY RAIN 2.64 Nw Peoria, ILRAINFALL TOTAL SO FAR TODAY.
Sep 18, 7:00 PM CDTHEAVY RAIN 3.48Peoria, ILRAINFALL TOTAL SO FAR TODAY.
Sep 18, 7:30 PM CDTHEAVY RAIN 2.83 Wsw Alta, ILRAINFALL TOTAL SO FAR TODAY.
Sep 18, 7:30 PM CDTHEAVY RAIN 2.85 Nw Peoria, ILRAINFALL TOTAL SO FAR TODAY.
Sep 18, 8:50 PM CDTHEAVY RAIN 2.71 Ese Peoria, ILMESONET STATION 1 E PEORIA /C9901/

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, 10.9 hours before the alert went out and 113 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 2015-09-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 351 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 2015-09-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 218 square meters per square second.19395878Sfc1 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
351 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
933 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
218 m²/s²
0-3 km storm-relative helicity
219 m²/s²
Significant tornado parameter
0.1
Supercell composite
4.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

284 
WGUS53 KILX 182251
FFWILX
ILC143-179-190245-
/O.NEW.KILX.FF.W.0073.150918T2251Z-150919T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
551 PM CDT FRI SEP 18 2015

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL PEORIA COUNTY IN CENTRAL ILLINOIS...
  NORTH CENTRAL TAZEWELL COUNTY IN CENTRAL ILLINOIS...

* UNTIL 945 PM CDT
    
* AT 547 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING 
  HEAVY RAIN ACROSS THE WARNED AREA. A TRAINED SPOTTER REPORTED 2.6 
  INCHES OF RAIN JUST WEST OF PEORIA OVER THE PAST 3 HOURS. FLASH 
  FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  PEORIA...EAST PEORIA...BARTONVILLE...CREVE COEUR...WEST PEORIA...
  BELLEVUE...DUNLAP...HANNA CITY...TRIVOLI...BRIMFIELD...KICKAPOO...
  PEORIA HEIGHTS...NORWOOD...PEORIA INTERNATIONAL AIRPORT...
  SMITHVILLE...ALTA AND MOSSVILLE.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 474 BETWEEN MILE MARKERS 0 AND 7.
 INTERSTATE 74 BETWEEN MILE MARKERS 72 AND 96.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

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

&&

LAT...LON 4079 8956 4078 8957 4077 8955 4066 8953
      4063 8989 4088 8993 4094 8959

$$

SMITH
1 follow-up statement
399 
WGUS73 KILX 190200
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
900 PM CDT FRI SEP 18 2015

ILC143-179-190210-
/O.CAN.KILX.FF.W.0073.000000T0000Z-150919T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PEORIA-TAZEWELL-
900 PM CDT FRI SEP 18 2015

...THE FLASH FLOOD WARNING FOR CENTRAL PEORIA AND NORTH CENTRAL
TAZEWELL COUNTIES IS CANCELLED...

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

LAT...LON 4079 8956 4078 8957 4077 8955 4066 8953
      4063 8989 4088 8993 4094 8959

$$

BAK

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 18, 3:07 PM CDTFlash Flood WarningILXFulton, Knox, Peoria6 hr
Sep 18, 4:40 PM CDTFlash Flood WarningILXPeoria, Tazewell, Woodford5 hr
Sep 18, 5:17 PM CDTSpecial Weather StatementILXMcLean28 min

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.