Alert archive / Illinois / Flash Flood Warnings in 2018

Flash Flood Warning 13, NWS Lincoln, IL

June 19, 2018Effingham County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jun 19, 2018, 8:14 PM CDT for Effingham County, Illinois. It was in force for 4 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
Jun 19, 2018, 8:14 PM CDT (01:14 UTC)
Expired
Jun 19, 2018, 11:48 PM CDT
In force
4 hr
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Flood severity
None

County Effingham County, IL

The radar

The Evansville,IN radar (KVWX), 116 km from the middle of the area, began a volume at 01:15 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 00:00Z, 1.2 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-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2018-06-20Temperature 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 00:00Z on 2018-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -90 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
1617 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-90 m²/s²
0-3 km storm-relative helicity
-97 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

980 
WGUS53 KILX 200114
FFWILX
ILC049-200715-
/O.NEW.KILX.FF.W.0013.180620T0114Z-180620T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lincoln IL
814 PM CDT TUE JUN 19 2018

The National Weather Service in Lincoln has issued a

* Flash Flood Warning for...
  Southern Effingham County in south central Illinois...

* Until 215 AM CDT Wednesday

* At 813 PM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have 
  already fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. Flash flooding is expected to begin 
  shortly.

* Some locations that will experience flooding include...
  Altamont, Watson, Edgewood, Mason, Elliotstown, Altamont Reservoir
  and Heartville.


This includes the following highways...
 Interstate 57 between mile markers 143 and 155.
 Interstate 70 between mile markers 79 and 86.

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 3908 8880 3906 8842 3891 8841 3891 8881

$$

SB
1 follow-up statement
323 
WGUS73 KILX 200448
FFSILX

Flash Flood Statement
National Weather Service Lincoln IL
1148 PM CDT TUE JUN 19 2018

ILC049-200455-
/O.CAN.KILX.FF.W.0013.000000T0000Z-180620T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Effingham-
1148 PM CDT TUE JUN 19 2018

...THE FLASH FLOOD WARNING FOR SOUTHERN EFFINGHAM COUNTY IS
CANCELLED...

The heavy rain has ended. Local law enforcement officials reported 
the water has started to recede. Flash flooding is no longer 
expected to pose a threat. Please continue to heed any remaining 
road closures.

LAT...LON 3908 8880 3906 8842 3891 8841 3891 8881

$$

Smith

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 7:26 PM CDTSpecial Weather StatementILXClark, Coles, Crawford, Cumberland, Douglas, Edgar and 1 more64 min
Jun 19, 7:30 PM CDTSpecial Weather StatementILXCumberland, Effingham, Jasper45 min
Jun 19, 8:31 PM CDTSpecial Weather StatementILXClay, Richland44 min
Jun 20, 9:39 AM CDTRiver Flood WarningILXClay, Richland3 days
Jun 20, 4:20 PM CDTSpecial Weather StatementILXWoodford40 min
Jun 20, 5:23 PM CDTSpecial Weather StatementILXKnox67 min
Jun 20, 5:49 PM CDTSpecial Weather StatementILXSchuyler56 min
Jun 20, 6:34 PM CDTSpecial Weather StatementILXPeoria, Stark41 min
Jun 20, 6:38 PM CDTSpecial Weather StatementILXFulton52 min

Nearby

Flash Flood Warnings in Illinois, 2018Every flash flood warning in 2018

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.