Alert archive / Illinois / Flash Flood Warnings in 2015

Flash Flood Warning 42, NWS St. Louis, MO

June 28, 2015Pike County, Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 28, 2015, 7:06 PM CDT for Pike County, Illinois. It was in force for 5 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 28, 2015, 7:06 PM CDT (00:06 UTC)
Expired
Jun 29, 2015, 12:00 AM CDT
In force
5 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

County Pike County, IL

The radar

The St Louis radar (KLSX), 96 km from the middle of the area, began a volume at 00:06 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

Lincoln, IL (KILX), launched 00:00Z, 0.1 hours before the alert went out and 215 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 2015-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 281 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2015-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.19395878Sfc1 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
281 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
331 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

687 
WGUS53 KLSX 290006
FFWLSX
ILC149-290500-
/O.NEW.KLSX.FF.W.0042.150629T0006Z-150629T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
706 PM CDT SUN JUN 28 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN PIKE COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL MIDNIGHT CDT

* AT 658 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH VERY HEAVY RAINFALL HAD MOVED ACROSS WESTERN
  SECTIONS OF PIKE COUNTY OVER THE PAST SEVERAL HOURS.  
  RADAR ESTIMATES FROM RADAR INDICATE BETWEEN 1 TO 3 INCHES OF RAIN
  FELL FROM THE WESTERN TIP OF THE COUNTY TO AROUND NEBO...WITH THE
  HEAVIEST RAINS AROUND AND JUST WEST OF THE NEW CANTON AREA.  EVEN
  THOUGH THE RAIN IS DIMINISHING...THE FLASH FLOOD THREAT WILL
  CONTINUE AFTER THE RAIN ENDS AS THE HEAVY RAIN RUNS OFF INTO
  CREEKS AND STREAMS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ATLAS...ROCKPORT...NEW CANTON...PIKE...NEBO... AND PLEASANT HILL.

  CREEKS HAVE BEEN REPORTED OUT OF THEIR BANKS IN THE NEBO AREA.


THIS WARNING ALSO INCLUDES...
INTERSTATE 72 FROM EXIT 10 TO EXIT 20.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN VEHICLES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...DIPS...
OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM... EVEN A
SMALL ONE...ON FOOT OR IN A VEHICLE.

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.

&&

LAT...LON 3944 9063 3940 9062 3940 9090 3943 9100
      3947 9106 3954 9110 3955 9115 3960 9117
      3962 9123 3974 9137 3976 9095

$$

TRUETT
1 follow-up statement
731 
WGUS73 KLSX 290507
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1207 AM CDT MON JUN 29 2015

ILC149-290522-
/O.EXP.KLSX.FF.W.0042.000000T0000Z-150629T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIKE IL-
1207 AM CDT MON JUN 29 2015

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR PIKE COUNTY IN WEST
CENTRAL ILLINOIS 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 OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3944 9063 3940 9062 3940 9090 3943 9100
      3947 9106 3954 9110 3955 9115 3960 9117
      3962 9123 3974 9137 3976 9095

$$

GLASS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 7:28 PM CDTSevere Thunderstorm WarningLSXCalhoun, Jersey47 min
Jun 28, 8:26 PM CDTTornado WarningLSXMadison10 min
Jun 28, 8:48 PM CDTSevere Thunderstorm WarningLSXMadison, Monroe, Saint Clair42 min
Jun 28, 9:31 PM CDTSevere Thunderstorm WarningLSXMonroe, Saint Clair44 min
Jun 29, 5:08 PM CDTSevere Thunderstorm WarningLSXCalhoun, Pike37 min

Nearby

Flash Flood Warnings in Illinois, 2015Every flash flood warning in 2015

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.