Alert archive / Missouri / Flash Flood Warnings in 2015

Flash Flood Warning 94, NWS St. Louis, MO

December 28, 20157 counties in Missouri

NWS St. Louis, MO issued this flash flood warning at Dec 28, 2015, 5:24 AM CST for 7 counties in Missouri. It was in force for 7 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
Dec 28, 2015, 5:24 AM CST (11:24 UTC)
Expired
Dec 28, 2015, 12:30 PM CST
In force
7 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

Counties Iron County, MO, Jefferson County, MO, Madison County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 102 km from the middle of the area, began a volume at 11:25 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
Dec 28, 5:48 AM CSTHEAVY RAIN 5.752 Ne French Village, MO1.75 INCHES OVERNIGHT. WITH A STORM TOTAL SO FAR OF 5.75 INCHES.
Dec 28, 6:00 AM CSTHEAVY RAIN 4.27Farmington, MOEVENT TOTAL...SO FAR
Dec 28, 9:15 AM CSTHEAVY RAIN 52 Ne Hematite, MOSTORM TOTAL SO FAR

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

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 11.4 hours before the alert went out and 287 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 2015-12-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2015-12-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 415 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
13 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
448 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
415 m²/s²
0-3 km storm-relative helicity
496 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.

190 
WGUS53 KLSX 281124
FFWLSX
MOC093-099-123-179-186-187-221-281830-
/O.NEW.KLSX.FF.W.0094.151228T1124Z-151228T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
524 AM CST MON DEC 28 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ST. FRANCOIS COUNTY IN SOUTHEASTERN MISSOURI...
  STE. GENEVIEVE COUNTY IN SOUTHEASTERN MISSOURI...
  JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...
  IRON COUNTY IN SOUTHEASTERN MISSOURI...
  REYNOLDS COUNTY IN SOUTHEASTERN MISSOURI...
  MADISON COUNTY IN SOUTHEASTERN MISSOURI...
  WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 1230 PM CST MONDAY

* AT 522 AM CST...DOPPLER RADAR INDICATED PERIODS OF MODERATE TO
  HEAVY RAIN WILL FALL ACROSS THE WARNED AREA THIS MORNING. MANY
  LOCATIONS HAVE ALREADY OBSERVED 3 TO 6 INCHES OF RAINFALL IN THE
  PAST 48 HOURS. AN ADDITIONAL 1 TO 3 INCHES OF RAINFALL IS EXPECTED
  THIS MORNING WHICH WILL LEAD TO FLASH FLOODING!

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN ENCOUNTERING FLOODED ROADS...TURN AROUND...DON'T DROWN! MOST
FLOOD DEATHS OCCUR IN VEHICLES. DO NOT BECOME THE NEXT FLASH FLOOD
VICTIM!

&&

LAT...LON 3705 9096 3726 9116 3750 9121 3751 9131
      3759 9131 3759 9116 3774 9110 3820 9110
      3820 9078 3848 9073 3845 9067 3850 9059
      3850 9041 3845 9034 3819 9034 3796 8992
      3764 9015 3731 9014 3727 9074 3705 9078

$$

CVKING

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 28, 2:08 AM CSTFlash Flood WarningLSXReynolds3 hr
Dec 28, 4:28 AM CSTFlash Flood WarningLSXSaint Charles, Saint Louis, City of Saint Louis8 hr
Dec 28, 5:21 AM CSTFlash Flood WarningLSXCallaway, Cole, Crawford, Franklin, Gasconade, Lincoln and 3 more7 hr
Dec 28, 7:57 AM CSTFlash Flood WarningLSXAudrain, Lincoln, Montgomery, Pike6 hr
Dec 28, 12:23 PM CSTAreal Flood WarningLSXCrawford, Iron, Madison, Reynolds, Sainte Genevieve, Saint Francois and 1 more24 hr
Dec 28, 12:37 PM CSTAreal Flood WarningLSXCole, Franklin, Gasconade, Jefferson, Lincoln, Montgomery and 5 more24 hr

Nearby

Flash Flood Warnings in Missouri, 2015Every flash flood warning in 2015

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.