Alert archive / Missouri / Flash Flood Warnings in 2016

Flash Flood Warning 38, NWS St. Louis, MO

August 13, 2016Iron County, Madison County, Missouri

NWS St. Louis, MO issued this flash flood warning at Aug 13, 2016, 2:09 PM CDT for Iron County, Madison County, Missouri. It was in force for 6 hr. 3 reports 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, 2:09 PM CDT (19:09 UTC)
Expired
Aug 13, 2016, 8:00 PM CDT
In force
6 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

Counties Iron County, MO, Madison County, MO

The radar

The St Louis radar (KLSX), 143 km from the middle of the area, began a volume at 19:10 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, 3:15 PM CDTFLASH FLOOD7 Ese Annapolis, MOMODOT REPORTS ROUTE F EASTBOUND IS CLOSED DUE TO HIGH WATER EAST OF HIGHWAY 49.
Aug 13, 3:17 PM CDTFLASH FLOOD5 E Annapolis, MOMODOT REPORTS ROUTE C IS CLOSED EAST OF HIGHWAY 49 DUE TO HIGH WATER
Aug 13, 3:53 PM CDTFLOOD4 E Fredericktown, MOSOME OF THE SMALL CREEKS AND STREAMS ARE FLOODING WITH WATER OVER COUNTY ROAD 208 AND ROUTE W IN SPOTS

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

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 7.2 hours before the alert went out and 292 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, Little Rock, AR at 12:00Z on 2016-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 902 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, Little Rock, AR at 12:00Z on 2016-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 square meters per square second.1939Sfc1 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
902 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
683 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
-42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

186 
WGUS53 KLSX 131909
FFWLSX
MOC093-123-140100-
/O.NEW.KLSX.FF.W.0038.160813T1909Z-160814T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
209 PM CDT SAT AUG 13 2016

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN IRON COUNTY IN SOUTHEASTERN MISSOURI...
  MADISON COUNTY IN SOUTHEASTERN MISSOURI...

* UNTIL 800 PM CDT

* AT 205 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. RADAR ESTIMATES THAT 2 TO 4
  INCHES OF RAIN MAY HAVE FALLEN ALONG AN AXIS FROM NORTHEAST OF
  ANNAPOLIS TO EAST OF FREDERICKTOWN. SOME MINOR FLOODING HAS
  ALREADY OCCURRED AND MORE SIGNIFICANT FLASH FLOODING IS EXPECTED
  TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  FREDERICKTOWN...IRONTON...ARCADIA...ANNAPOLIS...JUNCTION CITY...
  COBALT...MARQUAND...ROSELLE...BUCKHORN...GLOVER...SACO...DES ARC...
  MINE LA MOTTE...CATHERINE PLACE...HOGAN...CHLORIDE...
  VULCAN AND SABULA.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES IS EXPECTED THROUGH THE
AFTERNOON AND ADDITIONAL HEAVY RAINFALL IS EXPECTED TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...FARMLAND...AND OTHER LOW LYING
SPOTS.

&&

LAT...LON 3728 9075 3752 9077 3764 9054 3764 9015
      3755 9014 3731 9015 3732 9055 3728 9055

$$

GLASS
1 follow-up statement
782 
WGUS73 KLSX 132343
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
643 PM CDT SAT AUG 13 2016

MOC093-123-132353-
/O.CAN.KLSX.FF.W.0038.000000T0000Z-160814T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
IRON MO-MADISON MO-
643 PM CDT SAT AUG 13 2016

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN IRON AND MADISON COUNTIES
IN SOUTHEASTERN MISSOURI IS CANCELLED...

THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 3728 9075 3752 9077 3764 9054 3764 9015
      3755 9014 3731 9015 3732 9055 3728 9055

$$

KANOFSKY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 7:37 PM CDTSpecial Weather StatementLSXSaint Louis, City of Saint Louis38 min

Nearby

Flash Flood Warnings in Missouri, 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.