Alert archive / Missouri / Flash Flood Warnings in 2014

Flash Flood Warning 5, NWS St. Louis, MO

April 3, 20145 counties in Missouri

NWS St. Louis, MO issued this flash flood warning at Apr 3, 2014, 2:45 PM CDT for 5 counties in Missouri. It was in force for 8 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: Apr 3, 2014, 2:45 PM CDT (19:45 UTC)
Expired: Apr 3, 2014, 10:30 PM CDT
In force: 8 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

Counties Boone County, MO, Callaway County, MO, Cole County, MO, Moniteau County, MO, Osage County, MO

The radar

The St Louis radar (KLSX), 146 km from the middle of the area, began a volume at 19:46 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

Time	Report	Where	Remark
Apr 3, 9:22 PM CDT	HEAVY RAIN 3.75	Jefferson City, MO	SOUTH SIDE OF JEFFERSON CITY SINCE MIDNIGHT.

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 12:00Z, 7.8 hours before the alert went out and 235 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1727 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 686 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 417 m²/s²
0-3 km storm-relative helicity: 423 m²/s²
Significant tornado parameter: 3.5
Supercell composite: 15.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

578 
WGUS53 KLSX 031945
FFWLSX
MOC019-027-051-135-151-040330-
/O.NEW.KLSX.FF.W.0005.140403T1945Z-140404T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
245 PM CDT THU APR 3 2014

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BOONE COUNTY IN CENTRAL MISSOURI...
  CALLAWAY COUNTY IN CENTRAL MISSOURI...
  COLE COUNTY IN CENTRAL MISSOURI...
  MONITEAU COUNTY IN CENTRAL MISSOURI...
  OSAGE COUNTY IN CENTRAL MISSOURI...

* UNTIL 1030 PM CDT

* AT 242 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
  WARNED AREA...WITH SEVERAL WAVES OF THUNDERSTORMS EXPECTED
  INTO THE EARLY EVENING HOURS.  DUE TO THE MOIST AIRMASS AND
  REPEAT THUNDERSTORM ACTIVITY...LOCALIZED RAINFALLS OF 2 TO 3
  INCHES ARE IN SOME SPOTS...FALLING ON GROUND ALREADY SATURATED
  FROM THE HEAVY RAINS OF YESTERDAY AND LAST NIGHT.   

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ASHLAND...CALIFORNIA...CENTRALIA...COLUMBIA...FULTON...HOLTS
  SUMMIT...JEFFERSON CITY...LINN...TIPTON...AUXVASSE...BRAZITO...
  CENTERTOWN...CHAMOIS...CLARKSBURG...EASLEY...FREEBURG...
  HALLSVILLE...HICKORY HILL...HIGH POINT...JAMESTOWN...LAKE MYKEE...
  MCGIRK...MIDWAY...MURRY...NEW BLOOMFIELD...RICH FOUNTAIN...
  ROCHEPORT...RUSSELLVILLE...SHAMROCK AND ST. MARTINS.

THIS WARNING INCLUDES CLARKS HILL/NORTON HISTORIC SITE...FINGER LAKES
STATE PARK...JEFFERSON LANDING HISTORIC SITE...JEWELL CEMETERY
HISTORIC SITE AND ROCK BRIDGE STATE PARK.

LAT...LON 3869 9284 3869 9261 3892 9250 3899 9257
      3925 9243 3924 9211 3907 9211 3906 9163
      3829 9165 3829 9220 3834 9220 3832 9226
      3834 9241 3843 9241 3843 9263 3860 9284

$$

TRUETT

1 follow-up statement

624 
WGUS73 KLSX 032129
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
429 PM CDT THU APR 3 2014

MOC019-027-051-135-151-040330-
/O.CON.KLSX.FF.W.0005.000000T0000Z-140404T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BOONE MO-CALLAWAY MO-COLE MO-MONITEAU MO-OSAGE MO-
429 PM CDT THU APR 3 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR OSAGE...MONITEAU...
COLE...CALLAWAY AND BOONE COUNTIES UNTIL 1030 PM CDT...

...THUNDERSTORMS WITH ADDITIONAL HEAVY RAIN MOVING BACK INTO MID 
MISSOURI LATE THIS AFTERNOON AND EARLY THIS EVENING...

AT 425 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL APPROACHING MID MISSOURI FROM 
WESTERN SECTIONS OF THE STATE.  RAINFALLS OF 1 TO 2 INCHES WILL BE 
POSSIBLE IN SOME AREAS OVER A VERY SHORT PERIOD OF TIME...WITH THESE 
TORRENTIAL DOWNPOURS FALLING ON TOP OF ALREADY SATURATED GROUND.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO 
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING 
INCLUDE...ASHLAND...CALIFORNIA...CENTRALIA...COLUMBIA...FULTON...HOLT
S SUMMIT...JEFFERSON CITY...LINN...TIPTON...AUXVASSE...BRAZITO...
CENTERTOWN...CHAMOIS...CLARKSBURG...EASLEY...FREEBURG...
HALLSVILLE...HICKORY HILL...HIGH POINT...JAMESTOWN...
LAKE MYKEE...MCGIRK...MIDWAY...MURRY...NEW BLOOMFIELD...
RICH FOUNTAIN...RUSSELLVILLE...SHAMROCK...ST. MARTINS AND ST. THOMAS.

THIS WARNING INCLUDES CLARKS HILL/NORTON HISTORIC SITE...FINGER LAKES
STATE PARK...JEFFERSON LANDING HISTORIC SITE...JEWELL CEMETERY
HISTORIC SITE AND ROCK BRIDGE STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

IN HILLY TERRAIN...THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH
ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL
ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW
INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN ST LOUIS.

&&

LAT...LON 3869 9284 3869 9261 3892 9250 3899 9257
      3925 9243 3924 9211 3907 9211 3906 9163
      3829 9165 3829 9220 3834 9220 3832 9226
      3834 9241 3843 9241 3843 9263 3860 9284

$$

TRUETT

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 2, 8:55 PM CDT	River Flood Warning	LSX	Lincoln	60 hr
Apr 3, 2:19 AM CDT	Areal Flood Advisory	LSX	Boone, Moniteau	3 hr
Apr 3, 3:06 AM CDT	Flash Flood Warning	LSX	Boone, Callaway, Cole, Moniteau	6 hr
Apr 3, 4:55 AM CDT	Flash Flood Warning	LSX	Gasconade, Osage	6 hr
Apr 3, 5:05 AM CDT	Severe Thunderstorm Warning	LSX	Saint Louis	40 min
Apr 3, 5:19 AM CDT	Severe Thunderstorm Warning	LSX	City of Saint Louis	56 min
Apr 3, 5:23 AM CDT	Tornado Warning Tornado observed	LSX	Saint Louis, City of Saint Louis	37 min
Apr 3, 6:15 AM CDT	River Flood Warning	LSX	Cole	64 hr
Apr 3, 8:11 AM CDT	Areal Flood Advisory	LSX	Jefferson, Sainte Genevieve, Saint Francois, Washington	3 hr
Apr 3, 8:18 AM CDT	River Flood Warning	LSX	Osage	30 hr
Apr 3, 8:58 AM CDT	River Flood Warning	LSX	Monroe	4 days
Apr 3, 9:11 AM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway	49 min
Apr 3, 9:23 AM CDT	Areal Flood Warning	LSX	Boone, Callaway, Cole, Moniteau	3 hr
Apr 3, 12:03 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Saint Louis	42 min
Apr 3, 1:00 PM CDT	Areal Flood Warning	LSX	Boone, Moniteau	24 hr
Apr 3, 1:09 PM CDT	Severe Thunderstorm Warning	LSX	Franklin	36 min
Apr 3, 1:32 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles, Saint Louis	43 min
Apr 3, 1:43 PM CDT	Flash Flood Warning	LSX	Crawford, Franklin, Gasconade, Jefferson, Washington	8 hr
Apr 3, 1:54 PM CDT	River Flood Warning	LSX	Marion	42 hr
Apr 3, 1:56 PM CDT	Severe Thunderstorm Warning	LSX	Cole, Moniteau	49 min
Apr 3, 3:36 PM CDT	River Flood Warning	LSX	Jefferson	4 days
Apr 3, 3:36 PM CDT	River Flood Warning	LSX	Franklin	71 hr
Apr 3, 5:37 PM CDT	Severe Thunderstorm Warning	LSX	Cole, Osage	38 min
Apr 3, 5:48 PM CDT	Tornado Warning	LSX	Cole, Osage	27 min
Apr 3, 6:06 PM CDT	Tornado Warning	LSX	Franklin, Gasconade, Osage	24 min
Apr 3, 6:31 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Gasconade, Saint Charles, Warren	44 min
Apr 3, 6:34 PM CDT	Severe Thunderstorm Warning	LSX	Knox, Lewis	41 min
Apr 3, 6:36 PM CDT	Severe Thunderstorm Warning	LSX	Lewis, Marion, Monroe, Shelby	39 min

Nearby

Flash Flood Warnings in Missouri, 2014 Every 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.