Alert archive / Missouri / Flash Flood Warnings in 2016

Flash Flood Warning 30, NWS St. Louis, MO

August 3, 2016Callaway County, Missouri

NWS St. Louis, MO issued this flash flood warning at Aug 3, 2016, 12:05 PM CDT for Callaway County, Missouri. It was in force for 4 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
Aug 3, 2016, 12:05 PM CDT (17:05 UTC)
Expired
Aug 3, 2016, 4:00 PM CDT
In force
4 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

County Callaway County, MO

The radar

The St Louis radar (KLSX), 102 km from the middle of the area, began a volume at 17:07 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

Springfield, MO (KSGF), launched 12:00Z, 5.1 hours before the alert went out and 271 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, Springfield, MO at 12:00Z on 2016-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 366 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, Springfield, MO at 12:00Z on 2016-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 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
366 J/kg
Mixed-layer CIN
-197 J/kg
Mixed-layer LCL
1842 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

315 
WGUS53 KLSX 031705
FFWLSX
MOC027-032100-
/O.NEW.KLSX.FF.W.0030.160803T1705Z-160803T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1205 PM CDT WED AUG 3 2016

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL CALLAWAY COUNTY IN CENTRAL MISSOURI...

* UNTIL 400 PM CDT

* AT 1156 AM CDT...THE CALLAWAY COUNTY EMERGENCY MANAGEMENT
  OFFICIALS REPORTED THAT THE DAM ON GLOVERS SPRING LAKE JUST
  EAST OF FULTON WAS IN THE PROCESS OF FAILING.  

WHEN THE DAM DOES FAIL...FLOODWATERS WILL MOVE DOWN CROWS FORK CREEK
AND THE AUXVASSE CREEK.  THIS WILL ALSO AFFECT ROUTE UU...ROUTE O...
AND COUNTY ROUTE 101.  PERSONS ALONG THESE CREEKS IN CENTRAL
CALLAWAY COUNTY SHOULD MOVE TO HIGHER GROUND NOW!

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 3886 9185 3869 9177 3868 9186 3886 9192

$$

BRITT
1 follow-up statement
798 
WGUS73 KLSX 031920
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
220 PM CDT WED AUG 3 2016

MOC027-032100-
/O.CON.KLSX.FF.W.0030.000000T0000Z-160803T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CALLAWAY MO-
220 PM CDT WED AUG 3 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
CENTRAL CALLAWAY COUNTY...

AT 207 PM CDT...EMERGENCY MANAGEMENT REPORTED FLASH FLOODING BELOW
GLOVERS SPRING LAKE ALONG DUNLAP CREEK. FLASH FLOODING IS ALREADY
OCCURRING. BASED ON MEDIA PHOTOS OF THE AREA, A PART OF THE COUNTY
ROUTE 101 BRIDGE OVER DUNLAP CREEK HAS BEEN WASHED OUT.

FLOOD WATERS ARE MOVING DOWN DUNLAP CREEK BELOW GLOVERS SPRING LAKE
DAM AND INTO CROWS FORK CREEK EAST OF FULTON.  THIS EARTHEN DAM IS
IN THE PROCESS OF FAILING. PEOPLE BELOW THIS DAM ALONG DUNLAP CREEK,
CROWS FORK CREEK, AND EVEN AUXVASSE CREEK SHOULD BE ALERT TO RAPIDLY
RISING WATER DUE TO THIS DAM FAILURE.  IN ADDITION TO COUNTY ROAD
101, MOTORISTS SHOULD BE ALERT TO POSSIBLE IMPACTS TO STATE HIGHWAY
UU AND STATE HIGHWAY O NEAR CROWS FORK CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 3886 9185 3869 9177 3868 9186 3886 9192

$$

FUCHS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 11:48 PM CDTFlash Flood WarningLSXBoone, Callaway, Cole, Moniteau, Osage6 hr
Aug 3, 12:47 AM CDTSpecial Weather StatementLSXGasconade, Osage43 min
Aug 3, 1:30 AM CDTSpecial Weather StatementLSXFranklin, Warren45 min
Aug 3, 3:11 PM CDTHeat AdvisoryLSXBoone, Cole, Moniteau29 hr
Aug 3, 4:01 PM CDTFlash Flood WarningLSXCallaway9 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.