Alert archive / Missouri / Flash Flood Warnings in 2015

Flash Flood Warning 20, NWS St. Louis, MO

June 19, 2015Sainte Genevieve County, Saint Francois County, Missouri

NWS St. Louis, MO issued this flash flood warning at Jun 19, 2015, 2:32 PM CDT for Sainte Genevieve County, Saint Francois County, Missouri. 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 19, 2015, 2:32 PM CDT (19:32 UTC)
Expired
Jun 19, 2015, 8:30 PM CDT
In force
6 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

Counties Saint Francois County, MO, Sainte Genevieve County, MO

The radar

The St Louis radar (KLSX), 91 km from the middle of the area, began a volume at 19:35 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 12:00Z, 7.5 hours before the alert went out and 289 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 2015-06-19Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2015-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -42 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
938 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-42 m²/s²
0-3 km storm-relative helicity
1 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.

003 
WGUS53 KLSX 191932
FFWLSX
MOC186-187-200130-
/O.NEW.KLSX.FF.W.0020.150619T1932Z-150620T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
232 PM CDT FRI JUN 19 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...
  STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 830 PM CDT

* AT 231 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
  AREA OF VERY HEAVY RAINFALL ACROSS THE WARNED AREA. THIS RAIN IS 
FALLING ON SATURATED GROUND AND WILL RAPIDLY LEAD TO FLASH FLOODING.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BONNE
  TERRE...DESLOGE...FARMINGTON...LEADWOOD...STE. GENEVIEVE...
  BLOOMSDALE...COFFMAN...KNOB LICK...PARK HILLS...ROCKY RIDGE...     
  WEINGARTEN AND WOMAC.

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.

&&

LAT...LON 3784 9065 3798 9064 3802 9054 3804 9042
      3809 9034 3809 9029 3811 9026 3800 9007
      3789 8996 3788 8995 3765 9015 3764 9055

$$

BROWNING
1 follow-up statement
140 
WGUS73 KLSX 200137
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
837 PM CDT FRI JUN 19 2015

MOC186-187-200151-
/O.EXP.KLSX.FF.W.0020.000000T0000Z-150620T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STE. GENEVIEVE MO-ST. FRANCOIS MO-
837 PM CDT FRI JUN 19 2015

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR ST. FRANCOIS AND 
STE. GENEVIEVE COUNTIES HAS BEEN ALLOWED TO EXPIRE...AND HAS BEEN 
REPLACED WITH AN AREAL FLOOD WARNING.

THE FLASH FLOOD THREAT HAS ENDED HOWEVER FLOODING WAS STILL 
OCCURRING. PLEASE REPORT FLOODED ROADS TO YOUR LOCAL LAW ENFORCEMENT 
AGENCY.

LAT...LON 3784 9065 3798 9064 3802 9054 3804 9042
      3809 9034 3809 9029 3811 9026 3800 9007
      3789 8996 3788 8995 3765 9015 3764 9055

$$

KANOFSKY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 10:14 PM CDTRiver Flood WarningLSXLincoln42 hr
Jun 18, 11:24 PM CDTAreal Flood AdvisoryLSXLincoln, Montgomery, Pike, Warren8 hr
Jun 19, 1:09 AM CDTFlash Flood WarningLSXLincoln, Montgomery, Pike, Warren7 hr
Jun 19, 3:41 AM CDTFlash Flood WarningLSXCrawford6 hr
Jun 19, 7:36 AM CDTAreal Flood AdvisoryLSXFranklin, Jefferson, Saint Charles, Saint Louis, City of Saint Louis6 hr
Jun 19, 7:53 AM CDTAreal Flood WarningLSXLincoln, Montgomery, Pike, Warren6 hr
Jun 19, 9:39 AM CDTAreal Flood WarningLSXCrawford10 hr
Jun 19, 10:20 AM CDTFlash Flood WarningLSXFranklin, Gasconade, Osage6 hr
Jun 19, 10:34 AM CDTFlash Flood WarningLSXJefferson, Saint Charles, Saint Louis, City of Saint Louis6 hr
Jun 19, 4:02 PM CDTAreal Flood WarningLSXFranklin, Gasconade, Osage12 hr
Jun 19, 5:30 PM CDTAreal Flood WarningLSXWashington11 hr

Nearby

Flash Flood Warnings in Missouri, 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.