Alert archive / Illinois / Flash Flood Warnings in 2011

Flash Flood Warning 37, NWS St. Louis, MO

June 10, 2011Adams County, Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 10, 2011, 12:05 AM CDT for Adams County, Illinois. It was in force for 6 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 10, 2011, 12:05 AM CDT (05:05 UTC)
Expired: Jun 10, 2011, 6:00 AM CDT
In force: 6 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

County Adams County, IL

The radar

The Lincoln radar (KILX), 162 km from the middle of the area, began a volume at 05:06 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

Davenport, (KDVN), launched 00:00Z, 5.1 hours before the alert went out and 180 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 696 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 147 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

055 
WGUS53 KLSX 100505
FFWLSX
ILC001-101100-
/O.NEW.KLSX.FF.W.0037.110610T0505Z-110610T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1205 AM CDT FRI JUN 10 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN ADAMS COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL 600 AM CDT

* AT 1202 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
  WARNED AREA. UP TO THREE INCHES OF RAIN HAS FALLEN SO FAR AND AN
  ADDITIONAL INCH OR TWO IS POSSIBLE OVER THE NEXT SEVERAL HOURS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LIMA...URSA...MENDON...LORAINE...WOODVILLE AND GOLDEN.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 4020 9092 3997 9092 3998 9146 4002 9149
      4013 9151 4020 9150

$$

BYRD

1 follow-up statement

402 
WGUS73 KLSX 101100
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
600 AM CDT FRI JUN 10 2011

ILC001-101115-
/O.EXP.KLSX.FF.W.0037.000000T0000Z-110610T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ADAMS IL-
600 AM CDT FRI JUN 10 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHERN ADAMS
COUNTY HAS BEEN ALLOWED TO EXPIRE...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED...ENDING  THE FLOOD 
THREAT. IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR 
LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4020 9092 3997 9092 3998 9146 4002 9149
      4013 9151 4020 9150

$$

TILLY

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 11:38 AM CDT	River Flood Warning	LSX	Adams	13 days
Jun 10, 11:38 AM CDT	River Flood Warning	LSX	Adams	14 days
Jun 10, 11:38 AM CDT	River Flood Warning	LSX	Pike	14 days
Jun 10, 3:38 PM CDT	Areal Flood Advisory	LSX	Marion	4 hr
Jun 10, 5:10 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Marion	65 min
Jun 10, 5:30 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Pike	45 min
Jun 10, 5:42 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	48 min
Jun 10, 5:49 PM CDT	Tornado Warning	LSX	Adams	41 min
Jun 10, 6:16 PM CDT	Flash Flood Warning	LSX	Marion	10 hr
Jun 10, 6:27 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	48 min
Jun 10, 6:30 PM CDT	Tornado Warning	LSX	Adams	30 min
Jun 10, 6:43 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Marion	62 min

Nearby

Flash Flood Warnings in Illinois, 2011 Every flash flood warning in 2011

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.