Alert archive / Missouri / Flash Flood Warnings in 2016

Flash Flood Warning 17, NWS St. Louis, MO

July 25, 20164 counties in Missouri

NWS St. Louis, MO issued this flash flood warning at Jul 25, 2016, 1:23 AM CDT for 4 counties in 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
Jul 25, 2016, 1:23 AM CDT (06:23 UTC)
Expired
Jul 25, 2016, 7:15 AM CDT
In force
6 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

Counties Callaway County, MO, Cole County, MO, Gasconade County, MO, Osage County, MO

The radar

The St Louis radar (KLSX), 101 km from the middle of the area, began a volume at 06:24 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 00:00Z, 6.4 hours before the alert went out and 248 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 00:00Z on 2016-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1864 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 00:00Z on 2016-07-25The 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
1864 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
1917 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
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

975 
WGUS53 KLSX 250623
FFWLSX
MOC027-051-073-151-251215-
/O.NEW.KLSX.FF.W.0017.160725T0623Z-160725T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
123 AM CDT MON JUL 25 2016

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN COLE COUNTY IN CENTRAL MISSOURI...
  SOUTHERN CALLAWAY COUNTY IN CENTRAL MISSOURI...
  GASCONADE COUNTY IN EAST CENTRAL MISSOURI...
  OSAGE COUNTY IN CENTRAL MISSOURI...

* UNTIL 715 AM CDT

* AT 121 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE
  ALREADY FALLEN FROM NEAR JEFFERSON CITY TO THE TOWN OF META. FLASH
  FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  JEFFERSON CITY...FULTON...HOLTS SUMMIT...OWENSVILLE...LINN...
  BELLE...WARDSVILLE...TAOS...NEW BLOOMFIELD...BLAND...FREEBURG...
  ROSEBUD...CHAMOIS...WESTPHALIA...LAKE MYKEE TOWN...ST. THOMAS...
  LAKE MYKEE...MOUNT STERLING...RICH FOUNTAIN AND SWISS.

THIS ALSO INCLUDES  CLARKS HILL/NORTON HISTORIC SITE AND JEFFERSON
LANDING HISTORIC SITE.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3883 9214 3883 9176 3872 9165 3870 9165
      3868 9159 3866 9137 3821 9137 3821 9153
      3819 9154 3820 9164 3829 9165 3829 9219
      3834 9220 3832 9225 3834 9227

$$

GKS
1 follow-up statement
310 
WGUS73 KLSX 251219
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
719 AM CDT MON JUL 25 2016

MOC027-051-073-151-251228-
/O.EXP.KLSX.FF.W.0017.000000T0000Z-160725T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COLE MO-CALLAWAY MO-GASCONADE MO-OSAGE MO-
719 AM CDT MON JUL 25 2016

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN COLE...SOUTHERN
CALLAWAY...GASCONADE AND OSAGE COUNTIES HAS EXPIRED...

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

LAT...LON 3883 9214 3883 9176 3872 9165 3870 9165
      3868 9159 3866 9137 3821 9137 3821 9153
      3819 9154 3820 9164 3829 9165 3829 9219
      3834 9220 3832 9225 3834 9227

$$

GKS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 11:31 PM CDTSpecial Weather StatementLSXBoone, Cole, Moniteau59 min
Jul 25, 1:50 AM CDTSpecial Weather StatementLSXLincoln, Saint Charles, Warren40 min
Jul 25, 2:27 AM CDTSpecial Weather StatementLSXLincoln, Saint Charles48 min
Jul 25, 2:51 AM CDTAreal Flood AdvisoryLSXJefferson, Saint Charles, Saint Louis, City of Saint Louis6 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.