Alert archive / Illinois / Flash Flood Warnings in 2017

Flash Flood Warning 19, NWS Lincoln, IL

June 17, 2017Stark County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jun 17, 2017, 8:03 PM CDT for Stark County, Illinois. It was in force for 3 hr. 1 report 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 17, 2017, 8:03 PM CDT (01:03 UTC)
Expired: Jun 17, 2017, 11:00 PM CDT
In force: 3 hr
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Flood severity: None

County Stark County, IL

The radar

The Quad Cities radar (KDVN), 87 km from the middle of the area, began a volume at 01:05 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 17, 8:05 PM CDT	HEAVY RAIN 1.5	Toulon, IL	RAIN FELL IN LESS THAN ONE HOUR. NUMEROUS ROADS CLOSED IN TOWN.

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, 1.1 hours before the alert went out and 146 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: 606 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 1403 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 5.3

Open this sounding in Storm Lab

The text

As transmitted.

828 
WGUS53 KILX 180103
FFWILX
ILC175-180400-
/O.NEW.KILX.FF.W.0019.170618T0103Z-170618T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lincoln IL
803 PM CDT SAT JUN 17 2017

The National Weather Service in Lincoln has issued a

* Flash Flood Warning for...
  Stark County in north central Illinois...

* Until 1100 PM CDT

* At 803 PM CDT, emergency management reported heavy rain across the
  warned area. Flash flooding is already occurring.

* Some locations that will experience flooding include...
  Wyoming, Toulon, Osceola, Bradford, Elmira, West Jersey, La
  Fayette, Castleton and Duncan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 4097 8964 4098 8999 4115 8998 4115 8987
      4123 8986 4123 8964

$$

Barnes

2 follow-up statements

322 
WGUS73 KILX 180248
FFSILX

Flash Flood Statement
National Weather Service Lincoln IL
948 PM CDT SAT JUN 17 2017

ILC175-180400-
/O.CON.KILX.FF.W.0019.000000T0000Z-170618T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Stark-
948 PM CDT SAT JUN 17 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
STARK COUNTY...

At 946 PM CDT, emergency management reported flash flooding of 
many county roads due to the earlier very heavy rainfall.

Some locations that will experience flooding include...
Wyoming, Toulon, Osceola, Bradford, Elmira, West Jersey, La Fayette,
Castleton and Duncan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 4097 8964 4098 8999 4115 8998 4115 8987
      4123 8986 4123 8964

$$

Barnes

930 
WGUS73 KILX 180347
FFSILX

Flash Flood Statement
National Weather Service Lincoln IL
1047 PM CDT SAT JUN 17 2017

ILC175-180357-
/O.CAN.KILX.FF.W.0019.000000T0000Z-170618T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Stark-
1047 PM CDT SAT JUN 17 2017

...THE FLASH FLOOD WARNING FOR STARK COUNTY IS CANCELLED...

Flood waters have receded. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.

LAT...LON 4097 8964 4098 8999 4115 8998 4115 8987
      4123 8986 4123 8964

$$

Barnes

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 7:37 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Stark	53 min
Jun 17, 8:02 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Peoria, Tazewell, Woodford	43 min
Jun 17, 8:11 PM CDT	Flash Flood Warning	ILX	Marshall	3 hr
Jun 17, 8:40 PM CDT	Flash Flood Warning	ILX	Peoria, Tazewell, Woodford	3 hr
Jun 17, 8:54 PM CDT	Severe Thunderstorm Warning	ILX	McLean, Woodford	51 min
Jun 17, 9:10 PM CDT	Flash Flood Warning	ILX	McLean	3 hr
Jun 17, 9:24 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Morgan, Schuyler	56 min
Jun 17, 10:06 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Morgan	39 min
Jun 17, 10:09 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	52 min
Jun 17, 10:41 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Morgan, Sangamon	64 min
Jun 17, 11:37 PM CDT	Areal Flood Warning	ILX	Peoria, Tazewell, Woodford	12 hr
Jun 17, 11:47 PM CDT	Flash Flood Warning	ILX	Christian, Sangamon	3 hr
Jun 17, 11:55 PM CDT	Areal Flood Warning	ILX	McLean	12 hr
Jun 18, 2:41 AM CDT	Special Weather Statement	ILX	Clay, Effingham	34 min
Jun 18, 3:03 AM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham, Jasper, Richland	42 min
Jun 18, 3:30 AM CDT	Severe Thunderstorm Warning	ILX	Crawford, Jasper, Lawrence, Richland	45 min

Nearby

Flash Flood Warnings in Illinois, 2017 Every flash flood warning in 2017

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.