Alert archive / Missouri / Flash Flood Warnings in 2014

Flash Flood Warning 18, NWS St. Louis, MO

July 25, 2014Monroe County, Missouri

NWS St. Louis, MO issued this flash flood warning at Jul 25, 2014, 11:20 AM CDT for Monroe County, Missouri. It was in force for 3 hr. 1 report 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
Jul 25, 2014, 11:20 AM CDT (16:20 UTC)
Expired
Jul 25, 2014, 2:30 PM CDT
In force
3 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

County Monroe County, MO

The radar

The St Louis radar (KLSX), 135 km from the middle of the area, began a volume at 16:23 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
Jul 25, 11:31 AM CDTHEAVY RAIN 4.4Stoutsville, MORAINFALL SINCE APPROXIMATELY 930 AM THIS MORNING.

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

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 4.3 hours before the alert went out and 284 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 2014-07-25Temperature 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 2014-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1263 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
165 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.

278 
WGUS53 KLSX 251620
FFWLSX
MOC137-251930-
/O.NEW.KLSX.FF.W.0018.140725T1620Z-140725T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1120 AM CDT FRI JUL 25 2014

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN MONROE COUNTY IN NORTHEAST MISSOURI...

* UNTIL 230 PM CDT

* AT 1112 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLOODING
  NORTHEAST OF PARIS. ONE FOOT OF WATER WAS COVERING HIGHWAY 24 AT
  THE OTTER CREEK BRIDGE.  THE THUNDERSTORMS PRODUCING THE HEAVY
  RAIN WILL BE ENDING SHORTLY...BUT THE FLASH FLOOD THREAT WILL 
  CONTINUE FOR SEVERAL HOURS AFTER THE RAIN ENDS.  

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MONROE CITY.

THIS WARNING INCLUDES MARK TWAIN LAKE RECREATIONAL AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.

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 3940 9172 3940 9194 3966 9194 3966 9191
      3966 9172

$$

TRUETT
2 follow-up statements
687 
WGUS73 KLSX 251821
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
121 PM CDT FRI JUL 25 2014

MOC137-251930-
/O.CON.KLSX.FF.W.0018.000000T0000Z-140725T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONROE MO-
121 PM CDT FRI JUL 25 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN MONROE COUNTY
UNTIL 230 PM CDT...

THE STORMS WHICH PRODUCED THE HEAVY RAIN THIS MORNING HAVE MOVED 
WELL EAST OF THE WARNING AREA.   HOWEVER...RUNOFF FROM THIS HEAVY 
RAIN WILL MEAN A CONTINUED FLASH FLOOD THREAT INTO THE EARLY 
AFTERNOON HOURS.

RAINFALL ESTIMATES FROM RADAR INDICATE THAT OVER 4 INCHES OF RAIN 
FELL DURING THE MORNING IN A FAIRLY NARROW BAND FROM NORTHWEST OF 
STOUTSVILLE TO SOUTHEAST OF FLORIDA...AND A RAINFALL OBSERVER AT 
STOUTSVILLE MEASURED JUST UNDER FOUR AND ONE-HALF INCHES OF RAIN 
SHORTLY BEFORE NOON.
 
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING 
INCLUDE...MONROE CITY....STOUTSVILLE...AND FLORIDA.

THIS WARNING INCLUDES MARK TWAIN LAKE RECREATIONAL AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.

A FLASH FLOOD WARNING MEANS THAT FLASH 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 3940 9172 3940 9194 3966 9194 3966 9191
      3966 9172

$$

TRUETT
594 
WGUS73 KLSX 251925
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
225 PM CDT FRI JUL 25 2014

MOC137-251938-
/O.EXP.KLSX.FF.W.0018.000000T0000Z-140725T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONROE MO-
225 PM CDT FRI JUL 25 2014

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR EASTERN MONROE
COUNTY WILL BE ALLOWED TO EXPIRE AT 230 PM CDT...

EXCESS RUNOFF FROM THIS MORNINGS HEAVY RAIN HAS ENDED OVER THE 
WARNED AREA....AND THE MONROE COUNTY SHERIFFS OFFICE INDICATES NO 
ADDITIONAL FLOODING HAS BEEN REPORTED TO THEIR OFFICE.

THOSE DRIVING INTO FLOOD PRONE AREAS SHOULD CONTINUE TO USE 
CAUTION...AS THE RUNOFF FROM THE MORNING DOWNPOURS COULD HAVE 
DAMAGED ROADS AND LOW WATER CROSSINGS.  BE CERTAIN TO REPORT ANY 
ROAD DAMAGE TO YOUR LOCAL LAW ENFORCEMENT AGENCY. 

LAT...LON 3940 9172 3940 9194 3966 9194 3966 9191
      3966 9172

$$

TRUETT

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 11:58 AM CDTFlash Flood WarningLSXKnox, Lewis3 hr
Jul 25, 3:53 PM CDTHeat AdvisoryLSXFranklin, Jefferson, Saint Charles, Saint Louis, Warren, City of Saint Louis26 hr

Nearby

Flash Flood Warnings in Missouri, 2014Every flash flood warning in 2014

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.