Alert archive / Illinois / Flash Flood Warnings in 2015

Flash Flood Warning 39, NWS Lincoln, IL

June 26, 20156 counties in Illinois

NWS Lincoln, IL issued this flash flood warning at Jun 26, 2015, 11:20 AM CDT for 6 counties in Illinois. It was in force for 6 hr. 7 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: Jun 26, 2015, 11:20 AM CDT (16:20 UTC)
Expired: Jun 26, 2015, 5:15 PM CDT
In force: 6 hr
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Flood severity: None

Counties Cass County, IL, Fulton County, IL, Logan County, IL, Mason County, IL, Menard County, IL, Schuyler County, IL

The radar

The Lincoln radar (KILX), 65 km from the middle of the area, began a volume at 16:23 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
Jun 26, 11:20 AM CDT	HEAVY RAIN 2	Havana, IL	RAINFALL SINCE 6 AM THIS MORNING.
Jun 26, 11:30 AM CDT	HEAVY RAIN 1.6	New Holland, IL	4-HOUR TOTAL
Jun 26, 1:30 PM CDT	HEAVY RAIN 2.5	Beardstown, IL	MEASURED 2.50 INCHES OF RAIN SINCE EARLY THIS MORNING AND STILL RAINING AT 130 PM.
Jun 26, 2:00 PM CDT	HEAVY RAIN 2.5	Middletown, IL	MEASURED 2.50 INCHES OF RAIN SINCE MIDNIGHT TODAY
Jun 26, 2:10 PM CDT	FLOOD	Lincoln, IL	1550 STREET CLOSED DUE TO FLOODING WEST OF LINCOLN BETWEEN 400 AND 500 AVENUE.
Jun 26, 2:27 PM CDT	HEAVY RAIN 2.74	1 S New Holland, IL	MEASURED 2.74 INCHES OF RAIN SO FAR TODAY.
Jun 26, 3:30 PM CDT	HEAVY RAIN 2.65	New Holland, IL	MEASURED 2.65 INCHES OF RAIN 0.3 MILES ESE OF NEW HOLLAND SO FAR TODAY.

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, 4.3 hours before the alert went out and 127 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: 407 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 557 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 65 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.

275 
WGUS53 KILX 261620
FFWILX
ILC017-057-107-125-129-169-262215-
/O.NEW.KILX.FF.W.0039.150626T1620Z-150626T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1120 AM CDT FRI JUN 26 2015

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MASON COUNTY IN CENTRAL ILLINOIS...
  MENARD COUNTY IN CENTRAL ILLINOIS...
  LOGAN COUNTY IN CENTRAL ILLINOIS...
  CASS COUNTY IN WEST CENTRAL ILLINOIS...
  SCHUYLER COUNTY IN WEST CENTRAL ILLINOIS...
  SOUTHWESTERN FULTON COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL 515 PM CDT
    
* AT 1116 AM CDT...DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS 
  PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS 
  EXPECTED TO BEGIN SHORTLY. MINOR STREET FLOODING WAS REPORTED IN 
  BEARDSTOWN AT 1105 AM. RADAR ESTIMATED BETWEEN 1 AND 2 INCHES OF 
  RAIN HAS FALLEN IN THE PAST 3 HOURS OVER PARTS OF MASON...  
  SCHUYLER...NORTHERN CASS...SOUTHERN FULTON AND NORTHERN MENARD 
  COUNTIES. SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER THE WARNED 
  AREA AND SPREAD EASTWARD INTO LOGAN COUNTY THROUGH EARLY  
  AFTERNOON WITH ADDITIONAL RAINFALL AMOUNTS UP TO 1 INCH AND 
  LOCALLY 1 TO 2 INCHES BY 3 PM. THIS COULD LEAD TO FLASH FLOODING. 
  

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LINCOLN...BEARDSTOWN...HAVANA...RUSHVILLE...MASON CITY...
  PETERSBURG...ATHENS...ATLANTA...VIRGINIA...MOUNT PULASKI...
  ASTORIA...GREENVIEW...BROOKLYN...VERMONT...SAN JOSE...
  CHANDLERVILLE...TALLULA...EMDEN...ARENZVILLE AND ELKHART.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 155 BETWEEN MILE MARKERS 0 AND 10.
 INTERSTATE 55 BETWEEN MILE MARKERS 112 AND 140.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE. STAY 
AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME UNSTABLE 
AND UNSAFE. TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED 
ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4027 9045 4031 9045 4032 8927 4028 8927
      4027 8916 3993 8915 3992 8939 3998 8949
      3999 8965 3991 8978 3991 8998 3988 9004
      3988 9058 3991 9055 3998 9051 3999 9061
      4003 9061 4011 9071 4011 9091 4028 9091

$$

07

1 follow-up statement

522 
WGUS73 KILX 262224
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
524 PM CDT FRI JUN 26 2015

ILC017-057-107-125-129-169-262232-
/O.EXP.KILX.FF.W.0039.000000T0000Z-150626T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MASON-MENARD-LOGAN-CASS-SCHUYLER-FULTON-
524 PM CDT FRI JUN 26 2015

...THE FLASH FLOOD WARNING FOR MASON...MENARD...LOGAN...CASS...
SCHUYLER AND SOUTHWESTERN FULTON COUNTIES HAS EXPIRED...

FLOOD WATERS ARE BEGINNING TO RECED...AND ARE NO LONGER EXPECTED TO 
POSE A THREAT TO LIFE OR PROPERTY. A FLOOD ADVISORY HAS BEEN ISSUED 
TO REPLACE THE FLASH FLOOD WARNING DUE TO ONGOING MINOR FLOODING OF 
AREA ROADWAYS. PLEASE CONTINUE TO HEED ANY ROAD CLOSURES.

LAT...LON 4027 9045 4031 9045 4032 8927 4028 8927
      4027 8916 3993 8915 3992 8939 3998 8949
      3999 8965 3991 8978 3991 8998 3988 9004
      3988 9058 3991 9055 3998 9051 3999 9061
      4003 9061 4011 9071 4011 9091 4028 9091

$$

ONTON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 7:24 PM CDT	Special Weather Statement	ILX	Sangamon	51 min
Jun 25, 7:41 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Sangamon	49 min
Jun 25, 8:59 PM CDT	Special Weather Statement	ILX	Christian	46 min
Jun 25, 9:27 PM CDT	Special Weather Statement	ILX	Clay	33 min
Jun 25, 9:43 PM CDT	River Flood Warning	ILX	Cass, Mason, Menard	6 days
Jun 25, 9:50 PM CDT	Special Weather Statement	ILX	Lawrence, Richland	25 min
Jun 25, 10:48 PM CDT	Flash Flood Warning	ILX	Crawford, Cumberland, Effingham, Jasper	6 hr
Jun 26, 4:05 AM CDT	Flash Flood Watch	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 26 more	18 hr
Jun 26, 9:50 AM CDT	River Flood Warning	ILX	Piatt	6 days
Jun 26, 10:22 AM CDT	Flash Flood Warning	ILX	Fulton, McLean, Mason, Peoria, Tazewell, Woodford	9 hr
Jun 26, 1:57 PM CDT	Areal Flood Advisory	ILX	Champaign, DeWitt, Piatt, Vermilion	7 hr
Jun 26, 2:58 PM CDT	River Flood Warning	ILX	Mason, Menard	54 hr
Jun 26, 5:22 PM CDT	Areal Flood Advisory	ILX	Cass, Fulton, Logan, Mason, Menard, Schuyler	113 min
Jun 26, 6:18 PM CDT	Areal Flood Advisory	ILX	Clay, Crawford, Lawrence, Richland	3 hr

Nearby

Flash Flood Warnings in Illinois, 2015 Every 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.