Alert archive / Illinois / Flash Flood Warnings in 2016

Flash Flood Warning 22, NWS Lincoln, IL

August 13, 2016Clay County, Illinois

NWS Lincoln, IL issued this flash flood warning at Aug 13, 2016, 12:36 PM CDT for Clay County, Illinois. It was in force for 4 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
Aug 13, 2016, 12:36 PM CDT (17:36 UTC)
Expired
Aug 13, 2016, 4:30 PM CDT
In force
4 hr
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Flood severity
None

County Clay County, IL

The radar

The Evansville,IN radar (KVWX), 75 km from the middle of the area, began a volume at 17:36 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

TimeReportWhereRemark
Aug 13, 2:10 PM CDTFLASH FLOOD2 Se Flora, ILSEVERAL ROADS SOUTHEAST OF FLORA HAVE WATER OVER THEM. CREEKS AND DITCHES ARE AT BANK LEVEL.

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, 5.6 hours before the alert went out and 161 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 2016-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 252 joules per kilogram.LCLLFCEL10008507005003002001001 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 2016-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
252 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
626 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
13 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

165 
WGUS53 KILX 131736
FFWILX
ILC025-132130-
/O.NEW.KILX.FF.W.0022.160813T1736Z-160813T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1236 PM CDT SAT AUG 13 2016

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN CLAY COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 430 PM CDT

* AT 1233 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. RADAR ESTIMATED THAT 1.5 TO 2.5
  INCHES OF RAIN HAVE FALLEN SINCE 1130 AM IN AREAS FROM SOUTHWEST
  OF FLORA TO NEAR CLAY CITY. ADDITIONAL THUNDERSTORMS EXTEND
  SOUTHWEST TO NEAR MOUNT VERNON AND WILL BE TRACKING NORTHEAST OVER
  THESE SAME AREAS. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  FLORA...CLAY CITY...SAILOR SPRINGS...AND WENDELIN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 3861 8869 3885 8831 3885 8828 3884 8826
      3873 8826 3873 8829 3866 8827 3863 8830
      3860 8826

$$

GEELHART
2 follow-up statements
167 
WGUS73 KILX 131916
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
216 PM CDT SAT AUG 13 2016

ILC025-132130-
/O.CON.KILX.FF.W.0022.000000T0000Z-160813T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAY-
216 PM CDT SAT AUG 13 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR
SOUTHEASTERN CLAY COUNTY...

AT 215 PM CDT...EMERGENCY MANAGEMENT REPORTED FLOODING OCCURRING ON
SEVERAL ROADS SOUTHEAST OF FLORA...AND SOUTHWEST OF CLAY CITY. RADAR
HAS ESTIMATED THAT 2 TO 4 INCHES OF RAIN HAS FALLEN OVER THIS AREA
SINCE 1130 AM. ADDITIONAL SHOWERS AND THUNDERSTORMS ARE MOVING
NORTHEAST OUT OF WAYNE COUNTY AND WILL CONTINUE TO AFFECT AREAS EAST
OF FLORA...AND NEAR CLAY CITY...INTO MID AFTERNOON. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  FLORA...CLAY CITY AND SAILOR SPRINGS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 3861 8859 3884 8826 3873 8826 3873 8829
      3866 8827 3863 8830 3860 8826

$$

GEELHART
041 
WGUS73 KILX 132127
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
427 PM CDT SAT AUG 13 2016

ILC025-132136-
/O.EXP.KILX.FF.W.0022.000000T0000Z-160813T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAY-
427 PM CDT SAT AUG 13 2016

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN CLAY COUNTY WILL EXPIRE
AT 430 PM CDT...

FLOOD WATERS HAVE RECEDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT, BUT LIGHT RAIN WILL CONTINUE FOR SEVERAL MORE HOURS INTO
THIS EVENING. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES,
AND REPORT ANY FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3861 8859 3884 8826 3873 8826 3873 8829
      3866 8827 3863 8830 3860 8826

$$

SHIMON

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 7:31 PM CDTFlash Flood WarningILXLogan, Mason, Tazewell3 hr
Aug 12, 7:37 PM CDTSpecial Weather StatementILXChristian53 min
Aug 12, 8:26 PM CDTAreal Flood AdvisoryILXChristian, Sangamon3 hr
Aug 12, 9:59 PM CDTAreal Flood WarningILXSangamon6 hr
Aug 13, 3:20 AM CDTFlash Flood WatchILXChampaign, Christian, Clark, Clay, Coles, Crawford and 13 more3 days

Nearby

Flash Flood Warnings in Illinois, 2016Every flash flood warning in 2016

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.