Alert archive / Missouri / Flash Flood Warnings in 2014

Flash Flood Warning 2, NWS St. Louis, MO

April 3, 20144 counties in Missouri

NWS St. Louis, MO issued this flash flood warning at Apr 3, 2014, 3:06 AM CDT for 4 counties in Missouri. It was in force for 6 hr. 5 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: Apr 3, 2014, 3:06 AM CDT (08:06 UTC)
Expired: Apr 3, 2014, 9:00 AM CDT
In force: 6 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

The radar

The St Louis radar (KLSX), 140 km from the middle of the area, began a volume at 08:09 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, 4:27 AM CDT	FLASH FLOOD	1 W Tipton, MO	A FOOT OF WATER FLOWING ACROSS HIGHWAY 50 BETWEEN TIPTON AND SYRACUSE.
Apr 3, 7:00 AM CDT	HEAVY RAIN 3.11	Columbia, MO	MEASURED AT SANBORNE FIELD ON CAMPUS
Apr 3, 7:00 AM CDT	HEAVY RAIN 3.87	Jefferson City, MO
Apr 3, 8:00 AM CDT	HEAVY RAIN 2.85	Fulton, MO
Apr 3, 8:00 AM CDT	HEAVY RAIN 2.92	California, MO

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, 8.1 hours before the alert went out and 245 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: 1553 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 1002 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 207 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 5.6

Open this sounding in Storm Lab

The text

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

047 
WGUS53 KLSX 030806
FFWLSX
MOC019-027-051-135-031400-
/O.NEW.KLSX.FF.W.0002.140403T0806Z-140403T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL 900 AM CDT

* AT 305 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. RAINFALL RATES OVER 2 INCHES PER HOUR WILL CONTINUE   
  TO OCCUR EARLY THIS MORNING.

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

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.

&&

LAT...LON 3869 9283 3869 9262 3891 9251 3898 9257
      3908 9252 3908 9211 3906 9208 3906 9163
      3870 9166 3871 9173 3866 9187 3859 9195
      3851 9210 3843 9250 3843 9263 3860 9284

$$

CVKING

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, 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, 2:45 PM CDT	Flash Flood Warning	LSX	Boone, Callaway, Cole, Moniteau, Osage	8 hr
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.