Alert archive / Illinois / Flash Flood Warnings in 2017

Flash Flood Warning 2, NWS Lincoln, IL

April 29, 2017Crawford County, Jasper County, Illinois

NWS Lincoln, IL issued this flash flood warning at Apr 29, 2017, 7:56 AM CDT for Crawford County, Jasper County, Illinois. It was in force for 6 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
Apr 29, 2017, 7:56 AM CDT (12:56 UTC)
Expired
Apr 29, 2017, 2:00 PM CDT
In force
6 hr
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Flood severity
None

Counties Crawford County, IL, Jasper County, IL

What was reported inside it

TimeReportWhereRemark
Apr 29, 10:15 AM CDTHEAVY RAIN 2.41Ste. Marie, IL

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, 0.9 hours before the alert went out and 148 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 2017-04-29Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2017-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 242 square meters per square second.1939587897Sfc1 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
776 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
242 m²/s²
0-3 km storm-relative helicity
568 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

931 
WGUS53 KILX 291256
FFWILX
ILC033-079-291900-
/O.NEW.KILX.FF.W.0002.170429T1256Z-170429T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lincoln IL
756 AM CDT SAT APR 29 2017

The National Weather Service in Lincoln has issued a

* Flash Flood Warning for...
  Crawford County in east central Illinois...
  Jasper County in southeastern Illinois...

* Until 200 PM CDT Saturday

* At 755 AM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Robinson, Newton, Oblong, Palestine, Hutsonville, Flat Rock, Ste.
  Marie, Willow Hill, Wheeler, Hidalgo, New Hebron, Annapolis,
  Hardinville, West Liberty, Eaton, Bogota, Hunt City, Merom, Stoy
  and Yale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

&&

LAT...LON 3889 8754 3885 8754 3885 8836 3917 8836
      3917 8766 3915 8763 3914 8766 3912 8763
      3911 8765 3910 8762 3909 8762 3906 8757
      3900 8758 3899 8756 3899 8758 3896 8751
      3890 8752

$$

Goetsch
2 follow-up statements
991 
WGUS73 KILX 291549
FFSILX

Flash Flood Statement
National Weather Service Lincoln IL
1049 AM CDT SAT APR 29 2017

ILC033-079-291900-
/O.CON.KILX.FF.W.0002.000000T0000Z-170429T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Crawford-Jasper-
1049 AM CDT SAT APR 29 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR
CRAWFORD AND JASPER COUNTIES...

At 1047 AM CDT, Doppler radar indicated thunderstorms producing 
heavy rain across the warned area have just moved out of the area. 
Up to three inches of rain have fallen from previous steady rain 
and downpours. Flash flooding is expected to continue.

Some locations that will experience flooding include...
Robinson, Newton, Oblong, Palestine, Hutsonville, Flat Rock, Ste.
Marie, Willow Hill, Wheeler, Hidalgo, New Hebron, Annapolis,
Hardinville, West Liberty, Eaton, Bogota, Hunt City, Merom, Stoy and
Yale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

&&

LAT...LON 3889 8754 3885 8754 3885 8836 3917 8836
      3917 8766 3915 8763 3914 8766 3912 8763
      3911 8765 3910 8762 3909 8762 3906 8757
      3900 8758 3899 8756 3899 8758 3896 8751
      3890 8752

$$

37
201 
WGUS73 KILX 291858
FFSILX

Flash Flood Statement
National Weather Service Lincoln IL
158 PM CDT SAT APR 29 2017

ILC033-079-291906-
/O.EXP.KILX.FF.W.0002.000000T0000Z-170429T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Crawford-Jasper-
158 PM CDT SAT APR 29 2017

...THE FLASH FLOOD WARNING FOR CRAWFORD AND JASPER COUNTIES WILL
EXPIRE AT 200 PM CDT...

The heavy rain has ended and little rain has fallen over the past 
few hours. Flooding is no longer expected to pose a threat. Please 
continue to heed any remaining road closures.

LAT...LON 3889 8754 3885 8754 3885 8836 3917 8836
      3917 8766 3915 8763 3914 8766 3912 8763
      3911 8765 3910 8762 3909 8762 3906 8757
      3900 8758 3899 8756 3899 8758 3896 8751
      3890 8752

$$

37

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 6:19 AM CDTFlash Flood WarningILXClark, Coles, Cumberland, Edgar6 hr
Apr 29, 4:40 PM CDTFlash Flood WarningILXMorgan, Scott6 hr
Apr 29, 4:46 PM CDTSevere Thunderstorm WarningILXChristian, Macon, Shelby44 min
Apr 29, 4:50 PM CDTSevere Thunderstorm WarningILXLogan, Mason, Menard, Sangamon40 min
Apr 29, 5:16 PM CDTFlash Flood WarningILXChristian, Sangamon6 hr
Apr 29, 5:26 PM CDTSevere Thunderstorm WarningILXChristian, Macon, Moultrie, Piatt, Shelby49 min
Apr 29, 5:34 PM CDTFlash Flood WarningILXCass, Fulton, Mason, Menard, Schuyler6 hr
Apr 29, 5:50 PM CDTTornado WarningILXMacon, Moultrie, Shelby25 min
Apr 29, 6:10 PM CDTFlash Flood WarningILXFulton, Mason, Peoria, Tazewell, Woodford6 hr
Apr 29, 6:14 PM CDTSevere Thunderstorm WarningILXChampaign, Clark, Clay, Coles, Cumberland, DeWitt and 11 more46 min
Apr 29, 6:22 PM CDTFlash Flood WarningILXColes, Cumberland, Effingham, Jasper, Macon, Moultrie and 1 more6 hr
Apr 29, 6:43 PM CDTFlash Flood WarningILXChampaign, Douglas, Edgar, Piatt, Vermilion6 hr
Apr 29, 6:50 PM CDTFlash Flood WarningILXClark, Crawford6 hr
Apr 29, 6:56 PM CDTSevere Thunderstorm WarningILXChampaign, Coles, Douglas, Edgar, Vermilion49 min
Apr 29, 6:57 PM CDTFlash Flood WarningILXClay, Lawrence, Richland3 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.