Alert archive / Illinois / Flash Flood Warnings in 2014

Flash Flood Warning 2, NWS Lincoln, IL

February 20, 20145 counties in Illinois

NWS Lincoln, IL issued this flash flood warning at Feb 20, 2014, 5:42 PM CST for 5 counties in Illinois. It was in force for 6 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: Feb 20, 2014, 5:42 PM CST (23:42 UTC)
Expired: Feb 20, 2014, 11:30 PM CST
In force: 6 hr
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Flood severity: None

Counties DeWitt County, IL, Macon County, IL, Moultrie County, IL, Piatt County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 74 km from the middle of the area, began a volume at 23:45 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

Time	Report	Where	Remark
Feb 20, 6:00 PM CST	FLOOD	3 W Farmer City, IL	SEVERAL COUNTY ROADS IMPASSABLE DUE TO SNOWMELT FLOODING.
Feb 20, 10:00 PM CST	FLOOD	4 E Lovington, IL	ROUTE 133 BETWEEN ARTHUR AND LOVINGTON FLOODED. CORRECTED TIME.
Feb 20, 10:00 PM CST	FLOOD	5 N Warrensburg, IL	COUNTY HIGHWAY 18 BETWEEN GLASGOW AND DRUMMER ROAD CLOSED DUE TO HIGH WATER. CORRECTED TIME.
Feb 20, 10:00 PM CST	FLOOD	Clinton, IL	MANY SECONDARY ROADS IN DEWITT COUNTY IMPASSABLE DUE TO HIGH WATER. CORRECTED TIME.
Feb 20, 10:00 PM CST	FLOOD	Monticello, IL	NUMEROUS ROADS IN PIATT COUNTY CLOSED DUE TO HIGH WATER. CORRECTED TIME.
Feb 20, 10:00 PM CST	FLOOD	Shelbyville, IL	SEVERAL MAIN ROADS ARE COVERED BY WATER IN SHELBY CO. CORRECTED TIME.

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, 11.7 hours before the alert went out and 66 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 507 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 582 m²/s²
0-3 km storm-relative helicity: 576 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.

935 
WGUS53 KILX 202342
FFWILX
ILC039-115-139-147-173-210530-
/O.NEW.KILX.FF.W.0002.140220T2342Z-140221T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
542 PM CST THU FEB 20 2014

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DE WITT COUNTY IN CENTRAL ILLINOIS...
  MACON COUNTY IN CENTRAL ILLINOIS...
  MOULTRIE COUNTY IN CENTRAL ILLINOIS...
  PIATT COUNTY IN CENTRAL ILLINOIS...
  SHELBY COUNTY IN CENTRAL ILLINOIS...

* UNTIL 1130 PM CST

* AT 538 PM CST...EMERGENCY MANAGEMENT REPORTED FLOODING DUE TO 
  SLOW MOVING THUNDERSTORMS EARLIER THIS AFTERNOON ACROSS THE
  WARNED AREA. RADAR ESTIMATES SHOWED RAINFALL RATES OVER 3 INCHES
  PER HOUR CAUSING WIDESPREAD FLASH FLOODING.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CLINTON...DECATUR...MONTICELLO...SHELBYVILLE...SULLIVAN...
  ALLENVILLE...ARGENTA...ATWOOD...BEMENT...BETHANY...BLUE MOUND...
  CERRO GORDO...COWDEN...DALTON CITY...DE LAND...FARMER CITY...
  FINDLAY...FORSYTH...HAMMOND...HARRISTOWN...KENNEY...LAKEWOOD...LONG
  CREEK...LOVINGTON...MACON...MANSFIELD...MAROA...MOUNT ZION...OREANA
  AND STEWARDSON.

NUMEROUS ROADS ARE COVERED WITH WATER AND ARE IMPASSABLE ACROSS THE
WARNED AREA. DEWITT COUNTY EMERGENCY MANAGEMENT REPORTED A BRIDGE
COVERED WITH WATER NEAR COUNTY HIGHWAY 7 AND LAKE FORK ROAD. MANY
ROADS IN CLINTON WERE CLOSED DUE TO WATER ON THE ROAD. SHELBY COUNTY
EMERGENCY MANAGEMENT REPORTED MANY ROADS IMPASSABLE DUE TO WATER AS
WELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 3923 8903 3964 8900 3967 8913 3973 8915
      4028 8914 4027 8846 3943 8847 3922 8849
      3922 8876

$$

SHIMON

2 follow-up statements

019 
WGUS73 KILX 210008
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
608 PM CST THU FEB 20 2014

ILC039-115-139-147-173-210530-
/O.CON.KILX.FF.W.0002.000000T0000Z-140221T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MACON IL-MOULTRIE IL-PIATT IL-SHELBY IL-DE WITT IL-
608 PM CST THU FEB 20 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR DE WITT...SHELBY...
PIATT...MOULTRIE AND MACON COUNTIES UNTIL 1130 PM CST...

AT 606 PM CST...EMERGENCY MANAGEMENT REPORTED THAT FLASH FLOODING WAS
OCCURRING IN NUMEROUS LOCATIONS FROM CLINTON TO DECATUR TO 
SHELBYVILLE. 

SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
CLINTON...DECATUR...MONTICELLO...SHELBYVILLE...SULLIVAN...
ALLENVILLE...ARGENTA...ATWOOD...BEMENT...BETHANY...BLUE MOUND...CERRO
GORDO...COWDEN...DALTON CITY...DE LAND...FARMER CITY...FINDLAY...
FORSYTH...HAMMOND...HARRISTOWN...KENNEY...LAKEWOOD...LONG CREEK...
LOVINGTON...MACON...MANSFIELD...MAROA...MOUNT ZION...OREANA AND
STEWARDSON.

NUMEROUS ROADS ARE COVERED WITH WATER AND ARE IMPASSABLE ACROSS THE 
WARNED AREA. DEWITT COUNTY EMERGENCY MANAGEMENT REPORTED A BRIDGE 
COVERED WITH WATER NEAR COUNTY HIGHWAY 7 AND LAKE FORK ROAD. MANY 
ROADS IN CLINTON WERE CLOSED DUE TO WATER ON THE ROAD. SHELBY COUNTY 
EMERGENCY MANAGEMENT REPORTED MANY ROADS IMPASSABLE DUE TO WATER AS 
WELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 3923 8903 3964 8900 3967 8913 3973 8915
      4028 8914 4027 8846 3943 8847 3922 8849
      3922 8876

$$

SHIMON

505 
WGUS73 KILX 210450
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1050 PM CST THU FEB 20 2014

ILC039-115-139-147-173-210504-
/O.CAN.KILX.FF.W.0002.000000T0000Z-140221T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MACON IL-MOULTRIE IL-PIATT IL-SHELBY IL-DE WITT IL-
1050 PM CST THU FEB 20 2014

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR DE WITT...SHELBY...
PIATT...MOULTRIE AND MACON COUNTIES IS CANCELLED...

THIS WARNING HAS BEEN REPLACED BY AN AREAL FLOOD WARNING UNTIL 430 AM.  

THOUGH THE THREAT FOR FLASH FLOODING HAS ENDED...A FLOODING THREAT
REMAINS WITH STANDING WATER OVER MANY ROADS.  AN AREAL FLOOD
WARNING HAS REPLACED THIS WARNING AND IS IN EFFECT UNTIL 430 AM. 
IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL 
LAW ENFORCEMENT AGENCY.

LAT...LON 3923 8903 3964 8900 3967 8913 3973 8915
      4028 8914 4027 8846 3943 8847 3922 8849
      3922 8876

$$

HJS

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 19, 8:02 PM CST	River Flood Warning	ILX	Clay, Richland	7 days
Feb 19, 9:16 PM CST	High Wind Watch	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	6 hr
Feb 19, 11:12 PM CST	River Flood Warning	ILX	Fulton, Knox	5 days
Feb 19, 11:12 PM CST	River Flood Warning	ILX	Fulton	4 days
Feb 20, 3:15 AM CST	High Wind Warning	ILX	Cass, Champaign, Christian, DeWitt, Douglas, Edgar and 19 more	20 hr
Feb 20, 3:15 AM CST	Wind Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	24 hr
Feb 20, 11:46 AM CST	Areal Flood Warning	ILX	Knox, Stark	5 hr
Feb 20, 2:20 PM CST	Severe Thunderstorm Warning	ILX	Cass, Mason, Menard, Morgan, Sangamon, Schuyler and 1 more	40 min
Feb 20, 2:40 PM CST	Dense Fog Advisory	ILX	Fulton, Knox, McLean, Marshall, Peoria, Stark and 2 more	2 hr
Feb 20, 2:45 PM CST	Severe Thunderstorm Warning	ILX	Fulton, Schuyler	30 min
Feb 20, 2:49 PM CST	Tornado Warning	ILX	Cass, Mason, Morgan, Scott	26 min
Feb 20, 3:17 PM CST	Severe Thunderstorm Warning	ILX	Mason, Menard	28 min
Feb 20, 3:29 PM CST	Severe Thunderstorm Warning	ILX	Christian, Sangamon	31 min
Feb 20, 3:49 PM CST	Tornado Warning	ILX	Christian, Sangamon	26 min
Feb 20, 4:01 PM CST	Severe Thunderstorm Warning	ILX	Christian, Coles, Douglas, Macon, Moultrie, Piatt and 1 more	59 min
Feb 20, 4:08 PM CST	Tornado Warning	ILX	DeWitt, Logan, Macon, Sangamon	22 min
Feb 20, 4:09 PM CST	Flash Flood Warning	ILX	Sangamon	5 hr
Feb 20, 4:11 PM CST	Tornado Warning	ILX	Christian, Shelby	34 min
Feb 20, 4:40 PM CST	Tornado Warning	ILX	Coles, Douglas, Moultrie, Piatt, Shelby	35 min
Feb 20, 4:47 PM CST	Tornado Warning	ILX	Effingham, Moultrie, Shelby	28 min
Feb 20, 5:06 PM CST	Severe Thunderstorm Warning	ILX	Clark, Coles, Crawford, Cumberland, Douglas, Edgar and 3 more	54 min
Feb 20, 5:12 PM CST	Tornado Warning	ILX	Coles, Douglas, Edgar	33 min
Feb 20, 5:14 PM CST	Tornado Warning	ILX	Clark, Coles, Cumberland, Edgar	31 min
Feb 20, 5:45 PM CST	Tornado Warning	ILX	Edgar, Vermilion	30 min
Feb 20, 5:48 PM CST	Flash Flood Warning	ILX	Champaign, Clark, Clay, Coles, Crawford, Cumberland and 7 more	6 hr

Nearby

Flash Flood Warnings in Illinois, 2014 Every flash flood warning in 2014

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.