Flash Flood Warning 42, NWS St. Louis, MO

Issued

Aug 15, 2016, 5:03 AM CDT (10:03 UTC)

Expired

Aug 15, 2016, 11:00 AM CDT

In force

6 hr

Issued by

NWS St. Louis, MO

Area

Storm-based polygon

Flood severity

None

Counties Monroe County, IL, Saint Clair County, IL, Jefferson County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Washington County, MO

The St Louis radar (KLSX), 62 km from the middle of the area, began a volume at 10:03 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.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

449 
WGUS53 KLSX 151003
FFWLSX
ILC133-163-MOC099-186-187-189-221-151600-
/O.NEW.KLSX.FF.W.0042.160815T1003Z-160815T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
503 AM CDT MON AUG 15 2016

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN ST. CLAIR COUNTY IN SOUTHWESTERN ILLINOIS...
  MONROE COUNTY IN SOUTHWESTERN ILLINOIS...
  SOUTHWESTERN ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI...
  NORTHWESTERN ST. FRANCOIS COUNTY IN SOUTHEASTERN MISSOURI...
  NORTHWESTERN STE. GENEVIEVE COUNTY IN SOUTHEASTERN MISSOURI...
  JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...
  NORTHEASTERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 1100 AM CDT

* AT 500 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT THE
  INTERSECTION OF I-44 AND HIGHWAY 141 IS CLOSED DUE TO TWO FEET OF
  STANDING WATER UNDER THE OVERPASS. BETWEEN ONE AND THREE INCHES OF
  RAIN HAS FALLEN IN THE PAST THREE HOURS. FLASH FLOODING IS
  EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BELLEVILLE...WILDWOOD...BALLWIN...KIRKWOOD...ARNOLD...CRESTWOOD...
  FESTUS...EUREKA...WATERLOO...COLUMBIA...ELLISVILLE...
  SUNSET HILLS...PACIFIC...VALLEY PARK...DE SOTO...PEVELY...
  CRYSTAL CITY...DUPO...FENTON AND MILLSTADT.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 44 IN MISSOURI BETWEEN EXITS 261 AND 276.
 INTERSTATE 55 IN MISSOURI BETWEEN EXITS 170 AND 191.

THIS ALSO INCLUDES  WASHINGTON STATE PARK...ROUTE 66 STATE PARK...
CASTLEWOOD STATE PARK...MASTODON HISTORIC SITE...SANDY CREEK COVERED
BRIDGE HISTORIC SITE...AND GOV. DUNKLIN'S GRAVE HISTORIC SITE.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED
ROADS. FIND AN ALTERNATE ROUTE.

&&

LAT...LON 3859 9073 3850 8999 3813 9004 3809 9021
      3808 9020 3808 9034 3804 9041 3804 9045
      3796 9064 3796 9078

$$

BYRD

466 
WGUS73 KLSX 151521
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1021 AM CDT MON AUG 15 2016

ILC133-163-MOC099-186-187-189-221-151600-
/O.CON.KLSX.FF.W.0042.000000T0000Z-160815T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ST. CLAIR IL-MONROE IL-ST. LOUIS MO-ST. FRANCOIS MO-
STE. GENEVIEVE MO-JEFFERSON MO-WASHINGTON MO-
1021 AM CDT MON AUG 15 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
SOUTHWESTERN ST. CLAIR...MONROE...SOUTHWESTERN ST. LOUIS...
NORTHWESTERN ST. FRANCOIS...NORTHWESTERN STE. GENEVIEVE...JEFFERSON
AND NORTHEASTERN WASHINGTON COUNTIES...

AT 1019 AM CDT...TRAINED WEATHER SPOTTERS REPORTED HEAVY RAIN IN
PORTIONS OF THE WARNED AREA.  4 TO UPWARDS OF 6 INCHES OF RAIN HAS
FALLEN IN LOCALIZED PORTIONS OF THE WARNED AREA. FLASH FLOODING IS
LIKELY ONGOING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BELLEVILLE...WILDWOOD...BALLWIN...KIRKWOOD...ARNOLD...CRESTWOOD...
FESTUS...EUREKA...WATERLOO...COLUMBIA...ELLISVILLE...SUNSET HILLS...
PACIFIC...VALLEY PARK...DE SOTO...PEVELY...CRYSTAL CITY...DUPO...
FENTON AND MILLSTADT.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 44 IN MISSOURI BETWEEN EXITS 261 AND 276.
 INTERSTATE 55 IN MISSOURI BETWEEN EXITS 170 AND 191.

THIS ALSO INCLUDES  WASHINGTON STATE PARK...ROUTE 66 STATE PARK...
CASTLEWOOD STATE PARK...MASTODON HISTORIC SITE...SANDY CREEK COVERED
BRIDGE HISTORIC SITE...AND GOV. DUNKLIN'S GRAVE HISTORIC SITE.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED
ROADS. FIND AN ALTERNATE ROUTE.

&&

LAT...LON 3859 9073 3850 8999 3813 9004 3809 9021
      3808 9020 3808 9034 3804 9041 3804 9045
      3796 9064 3796 9078

$$

KD

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

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.