Alert archive / Missouri / Flash Flood Warnings in 2016

Flash Flood Warning 25, NWS St. Louis, MO

August 2, 20164 counties in Missouri

NWS St. Louis, MO issued this flash flood warning at Aug 2, 2016, 7:57 AM CDT for 4 counties in 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 2, 2016, 7:57 AM CDT (12:57 UTC)
Expired
Aug 2, 2016, 12:00 PM CDT
In force
4 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

Counties Franklin County, MO, Gasconade County, MO, Osage County, MO, Warren County, MO

The radar

The St Louis radar (KLSX), 78 km from the middle of the area, began a volume at 12:57 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, 1.0 hours before the alert went out and 265 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 2016-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 793 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 2016-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 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
793 J/kg
Mixed-layer CIN
-189 J/kg
Mixed-layer LCL
1632 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
28 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted.

908 
WGUS53 KLSX 021257
FFWLSX
MOC071-073-151-219-021700-
/O.NEW.KLSX.FF.W.0025.160802T1257Z-160802T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
757 AM CDT TUE AUG 2 2016

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GASCONADE COUNTY IN EAST CENTRAL MISSOURI...
  FRANKLIN COUNTY IN EAST CENTRAL MISSOURI...
  EASTERN OSAGE COUNTY IN CENTRAL MISSOURI...
  SOUTHWESTERN WARREN COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL NOON CDT

* AT 756 AM CDT...LOCAL LAW ENFORCEME WIDESPREAD FLASH FLOODING
  ACROSS THE WARNED AREA. FROM THREE TO SIX INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS ALREADY OCCURRING.

ADDITIONAL RAINFALL AMOUNTS OF ONE HALF TO ONE INCH 
ARE POSSIBLE IN THE WARNED AREA.

THIS INCLUDES INTERSTATE 44 IN MISSOURI BETWEEN EXITS 225 AND 242.
 
THIS ALSO INCLUDES  DEUTSCHHEIM HISTORIC SITE.
 
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 3867 9180 3869 9146 3871 9145 3871 9142
      3875 9142 3884 9136 3883 9124 3821 9082
      3821 9153 3818 9153 3815 9158 3815 9161
      3819 9165 3829 9165 3829 9175 3855 9201

$$

KRAMPER
1 follow-up statement
142 
WGUS73 KLSX 021652
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1152 AM CDT TUE AUG 2 2016

MOC071-073-151-219-021701-
/O.EXP.KLSX.FF.W.0025.000000T0000Z-160802T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GASCONADE MO-FRANKLIN MO-OSAGE MO-WARREN MO-
1152 AM CDT TUE AUG 2 2016

...THE FLASH FLOOD WARNING FOR GASCONADE...FRANKLIN...EASTERN OSAGE
AND SOUTHWESTERN WARREN COUNTIES WILL EXPIRE AT NOON CDT...

THE HEAVY RAIN HAS ENDED ACROSS THE AREA. HOWEVER...AN AREAL FLOOD
WARNING IS NOW IN EFFECT UNTIL 530 PM TODAY DUE TO THE CONTINUATION
OF ROAD CLOSURES ACROSS THE AREA AS LARGER STREAMS AND RIVERS
CONTINUE TO RISE.

LAT...LON 3867 9180 3869 9146 3871 9145 3871 9142
      3875 9142 3884 9136 3883 9124 3821 9082
      3821 9153 3818 9153 3815 9158 3815 9161
      3819 9165 3829 9165 3829 9175 3855 9201

$$

GOSSELIN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 2:09 AM CDTFlash Flood WarningLSXAudrain, Callaway, Monroe, Montgomery6 hr
Aug 2, 2:59 AM CDTFlash Flood WarningLSXFranklin, Gasconade, Osage, Warren5 hr
Aug 2, 4:02 AM CDTFlash Flood WarningLSXShelby5 hr
Aug 2, 4:57 AM CDTFlash Flood WarningLSXAudrain, Boone, Monroe5 hr
Aug 2, 5:34 AM CDTFlash Flood WarningLSXKnox6 hr
Aug 2, 8:08 AM CDTFlash Flood WarningLSXAudrain, Callaway, Monroe, Montgomery4 hr
Aug 2, 8:58 AM CDTFlash Flood WarningLSXMonroe, Shelby3 hr
Aug 2, 10:00 AM CDTFlash Flood WarningLSXAudrain, Boone, Monroe2 hr
Aug 2, 11:31 AM CDTAreal Flood WarningLSXAudrain, Boone, Callaway, Franklin, Gasconade, Knox and 5 more6 hr
Aug 2, 3:05 PM CDTFlash Flood WatchLSXFranklin, Jefferson, Lewis, Lincoln, Marion, Pike and 6 more14 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.