Alert archive / Illinois / Flash Flood Warnings in 2017

Flash Flood Warning 18, NWS Lincoln, IL

May 26, 2017Vermilion County, Illinois

NWS Lincoln, IL issued this flash flood warning at May 26, 2017, 6:06 PM CDT for Vermilion County, Illinois. It was in force for 11 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 26, 2017, 6:06 PM CDT (23:06 UTC)
Expired
May 27, 2017, 5:00 AM CDT
In force
11 hr
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Flood severity
None

County Vermilion County, IL

The radar

The Lincoln radar (KILX), 135 km from the middle of the area, began a volume at 23:05 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.1 hours before the alert went out and 75 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 2017-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1724 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
131 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

689 
WGUS53 KILX 262306
FFWILX
ILC183-270200-
/O.NEW.KILX.FF.W.0018.170526T2306Z-170527T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lincoln IL
606 PM CDT FRI MAY 26 2017

The National Weather Service in Lincoln has issued a

* Flash Flood Warning for...
  Northern Vermilion County in east central Illinois...

* Until 900 PM CDT

* At 606 PM CDT, trained weather spotters reported flash flooding in 
  Hoopeston along Illinois Route 1. Up to two inches of rain have 
  already fallen. Flash flooding is already occurring.

* Some locations that will experience flooding include...
  Hoopeston, Rossville, Potomac, Rankin, Henning, Armstrong and
  Alvin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4030 8793 4049 8793 4048 8753 4029 8753

$$

Barker
2 follow-up statements
379 
WGUS73 KILX 270122
FFSILX

Flash Flood Statement
National Weather Service Lincoln IL
822 PM CDT FRI MAY 26 2017

ILC183-270200-
/O.CON.KILX.FF.W.0018.000000T0000Z-170527T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Vermilion-
822 PM CDT FRI MAY 26 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHERN VERMILION COUNTY...

At 813 PM CDT, trained weather spotters reported flash flooding in 
northern Vermilion County. Widespread rainfall amounts of two to as 
much as 3 inches of rain fell in under 30 minutes with severe 
thunderstorms this evening which also produced large amounts of 
hail. Flash flooding is already occurring, and deep hail drifts will 
worsen the effects of flooding.

Some locations that will experience flooding include...
Hoopeston, Rossville, Potomac, Rankin, Henning and Alvin. 

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 4030 8781 4038 8793 4049 8793 4048 8753
      4029 8753

$$

37
071 
WGUS53 KILX 270129
FFWILX
ILC183-271000-
/O.EXT.KILX.FF.W.0018.000000T0000Z-170527T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lincoln IL
829 PM CDT FRI MAY 26 2017

The National Weather Service in Lincoln has extended the

* Flash Flood Warning for...
  Northern Vermilion County in east central Illinois...

* Until 500 AM CDT Saturday

* At 826 PM CDT, trained weather spotters reported flash flooding 
  occurring across the warned area. Two to as much as three inches 
  of rain fell in less than 30 minutes this evening across northern 
  Vermilion County , and additional thunderstorms are affecting the 
  area this evening. Flash flooding is already occurring. Large 
  amounts of hail also produced deep hail drifts which are worsening 
  flooding.

* Some locations that will experience flooding include...
  Hoopeston, Rossville, Potomac, Rankin, Henning and Alvin. 

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 4030 8781 4038 8793 4049 8793 4048 8753
      4029 8753

$$

37

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 1:52 PM CDTSpecial Weather StatementILXKnox38 min
May 26, 2:25 PM CDTSevere Thunderstorm WarningILXFulton, Knox50 min
May 26, 2:29 PM CDTSpecial Weather StatementILXPeoria46 min
May 26, 2:34 PM CDTSevere Thunderstorm WarningILXPeoria, Tazewell, Woodford41 min
May 26, 3:11 PM CDTSevere Thunderstorm WarningILXMcLean, Tazewell, Woodford23 min
May 26, 4:05 PM CDTSevere Thunderstorm WarningILXMcLean40 min
May 26, 5:10 PM CDTTornado WarningILXChampaign, Vermilion35 min
May 26, 5:43 PM CDTSevere Thunderstorm WarningILXVermilion47 min
May 26, 6:21 PM CDTSevere Thunderstorm WarningILXVermilion24 min

Nearby

Flash Flood Warnings in Illinois, 2017Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.