Alert archive / Illinois / Flash Flood Warnings in 2020

Flash Flood Warning 9, NWS Lincoln, IL

June 3, 2020Fulton County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jun 3, 2020, 9:13 PM CDT for Fulton 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 3, 2020, 9:13 PM CDT (02:13 UTC)
Expired: Jun 4, 2020, 12:15 AM CDT
In force: 3 hr
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Flood severity: None

County Fulton County, IL

The radar

The Lincoln radar (KILX), 90 km from the middle of the area, began a volume at 02:14 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 3, 10:00 PM CDT	HEAVY RAIN 1.49	3 Wnw Smithfield, IL	AT SEVILLE RIVER GAUGE. FELL IN 2 HOURS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 2.2 hours before the alert went out and 122 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: 1126 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 1114 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 103 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

809 
WGUS53 KILX 040213
FFWILX
ILC057-040515-
/O.NEW.KILX.FF.W.0009.200604T0213Z-200604T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lincoln IL
913 PM CDT Wed Jun 3 2020

The National Weather Service in Lincoln has issued a

* Flash Flood Warning for...
  Northwestern Fulton County in west central Illinois...

* Until 1215 AM CDT.

* At 913 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Around 2 inches of rain have 
  already fallen. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  IMPACT...Flooding of small creeks and streams, urban areas, 
           highways, streets and underpasses as well as other 
           drainage and low lying areas.

* Some locations that will experience flooding include...
  Cuba, Smithfield and Marietta. 

This includes the following streams and drainages...
Turkey Creek, Lost Grove Creek, Slug Run, Shaw Creek, Laswell Branch,
Aylesworth Branch, Barker Creek, Fox Creek, Muddy Creek, Baughman
Branch, Put Creek, South Fork Shaw Creek and Big Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Please report flooding to your local law enforcement agency when you
can do so safely.

&&

LAT...LON 4060 9022 4051 9017 4038 9018 4049 9041
      4062 9041

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2-3 INCHES IN 1 HOUR

$$

Geelhart

1 follow-up statement

745 
WGUS73 KILX 040507
FFSILX

Flash Flood Statement
National Weather Service Lincoln IL
1207 AM CDT Thu Jun 4 2020

ILC057-040517-
/O.EXP.KILX.FF.W.0009.000000T0000Z-200604T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fulton-
1207 AM CDT Thu Jun 4 2020

...THE FLASH FLOOD WARNING FOR NORTHWESTERN FULTON COUNTY WILL EXPIRE
AT 1215 AM CDT...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.

LAT...LON 4060 9022 4051 9017 4038 9018 4049 9041
      4062 9041

$$

Geelhart

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 8:18 PM CDT	Severe Thunderstorm Warning	ILX	Fulton	42 min
Jun 3, 8:27 PM CDT	Severe Thunderstorm Warning	ILX	Douglas, Edgar	63 min
Jun 3, 8:40 PM CDT	Flash Flood Warning	ILX	Douglas, Edgar	5 hr
Jun 3, 8:57 PM CDT	Severe Thunderstorm Warning	ILX	Fulton	48 min
Jun 3, 9:28 PM CDT	Special Weather Statement	ILX	Douglas, Edgar	62 min
Jun 3, 9:29 PM CDT	Special Weather Statement	ILX	Mason	46 min
Jun 3, 9:57 PM CDT	Flash Flood Warning	ILX	Coles, Douglas, Edgar	5 hr
Jun 3, 10:04 PM CDT	Flash Flood Warning	ILX	Fulton	2 hr
Jun 3, 11:50 PM CDT	Special Weather Statement	ILX	Macon	40 min
Jun 4, 12:18 AM CDT	Special Weather Statement	ILX	Champaign	42 min
Jun 4, 12:35 AM CDT	Flash Flood Warning	ILX	Champaign, Vermilion	3 hr
Jun 4, 1:07 AM CDT	Severe Thunderstorm Warning	ILX	Clark, Coles, Cumberland, Edgar	23 min
Jun 4, 1:28 AM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford, Cumberland, Edgar, Jasper	32 min

Nearby

Flash Flood Warnings in Illinois, 2020 Every flash flood warning in 2020

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.