Alert archive / Missouri / Flash Flood Warnings in 2015

Flash Flood Warning 46, NWS St. Louis, MO

July 1, 2015Jefferson County, Missouri

NWS St. Louis, MO issued this flash flood warning at Jul 1, 2015, 10:13 PM CDT for Jefferson County, Missouri. It was in force for 5 hr. 4 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: Jul 1, 2015, 10:13 PM CDT (03:13 UTC)
Expired: Jul 2, 2015, 3:15 AM CDT
In force: 5 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

County Jefferson County, MO

The radar

The St Louis radar (KLSX), 68 km from the middle of the area, began a volume at 03:14 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
Jul 1, 10:13 PM CDT	FLASH FLOOD	2 Nne Olympian Village, MO	WATER EVACUATION AT MONTAUK DRIVE JUST NORTH OF OLYMPIAN VILLAGE OFF OF HIGHWAY 67.
Jul 1, 11:00 PM CDT	FLASH FLOOD	3 Se Hematite, MO	* 1 FATAL * 1 BODY FOUND NEAR LOCATION WHERE WITNESSES SAID POSSIBLY TWO VEHICLES WERE SWEPT OFF OF MEYER ROAD DUE TO FLASH FLOODING ON BUCK CREEK SOUTHWEST OF FESTUS. TIME IS ESTIMATED.
Jul 1, 11:00 PM CDT	FLASH FLOOD	3 Se Hematite, MO	SHERIFF AND MHP PERSONEL SEARCHING FOR TWO POSSIBLY OCCUPIED VEHICLES THAT A WITNESS SAID WERE WASHED OFF THE ROAD DURING THE FLASH FLOODING NEAR US HWY 67 OFF OF MEYER ROAD. TWO VEHICLES WERE FOUND IN CREEK...BUT NOT KNOWN IF PEOPLE ARE MISSING FROM THESE VEH
Jul 1, 11:35 PM CDT	FLASH FLOOD	3 S Festus, MO	* 3 INJ * LEVEE OVERTOPPED ON PLATTIN CREEK NEXT TO LAKESIDE MANOR MOBILE HOME PARK. 4 TO 5 FEET OF WATER FLOODED THE MOBILE HOME PARK. 60 TO 70 WATER RESCUES. 3 INJURIED AND BROUGHT TO LOCAL HOSPITAL.

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

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.2 hours before the alert went out and 271 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: 65 J/kg
Mixed-layer CIN: -148 J/kg
Mixed-layer LCL: 997 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 85 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.

248 
WGUS53 KLSX 020313
FFWLSX
MOC099-020815-
/O.NEW.KLSX.FF.W.0046.150702T0313Z-150702T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1013 PM CDT WED JUL 1 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 315 AM CDT
    
* AT 1012 PM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  FESTUS...CRYSTAL CITY...HERCULANEUM...OLYMPIAN VILLAGE...VICTORIA
  AND HEMATITE.

THIS INCLUDES INTERSTATE 55 IN MISSOURI BETWEEN EXITS 170 AND 175.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 3804 9049 3822 9055 3825 9037 3822 9036
      3819 9034 3818 9032 3818 9030 3812 9025
      3810 9028 3809 9031 3809 9033 3808 9035

$$

TES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 7:35 PM CDT	Areal Flood Advisory	LSX	Saint Charles, Saint Louis, City of Saint Louis	4 hr
Jul 1, 7:38 PM CDT	Severe Thunderstorm Warning	LSX	Saint Louis, City of Saint Louis	37 min
Jul 1, 7:43 PM CDT	Tornado Warning	LSX	Boone, Callaway	32 min
Jul 1, 7:55 PM CDT	Flash Flood Warning	LSX	Boone	4 hr
Jul 1, 8:25 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway, Cole, Moniteau, Osage	50 min
Jul 1, 8:47 PM CDT	Tornado Warning	LSX	Cole, Moniteau	28 min
Jul 1, 8:55 PM CDT	Flash Flood Warning	LSX	Callaway, Cole, Moniteau, Osage	4 hr
Jul 1, 9:13 PM CDT	Severe Thunderstorm Warning	LSX	Cole, Moniteau, Osage	47 min
Jul 1, 9:18 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson	42 min
Jul 1, 9:46 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois	44 min
Jul 1, 10:14 PM CDT	River Flood Warning	LSX	Crawford, Washington	4 days
Jul 1, 10:34 PM CDT	Flash Flood Warning	LSX	Franklin, Gasconade, Jefferson, Osage	6 hr
Jul 1, 11:15 PM CDT	Severe Thunderstorm Warning	LSX	Crawford	18 min
Jul 1, 11:23 PM CDT	Flash Flood Warning	LSX	Crawford, Sainte Genevieve, Saint Francois, Washington	6 hr
Jul 1, 11:58 PM CDT	Areal Flood Warning	LSX	Boone	9 hr
Jul 2, 12:58 AM CDT	Areal Flood Warning	LSX	Callaway, Cole, Moniteau, Osage	9 hr
Jul 2, 2:47 AM CDT	Flash Flood Warning	LSX	Iron, Madison, Reynolds	6 hr
Jul 2, 3:20 AM CDT	Areal Flood Warning	LSX	Franklin, Gasconade, Jefferson, Osage	9 hr
Jul 2, 4:41 AM CDT	River Flood Warning	LSX	Cole	55 hr
Jul 2, 5:29 AM CDT	Areal Flood Warning	LSX	Crawford, Sainte Genevieve, Saint Francois, Washington	9 hr
Jul 2, 6:29 AM CDT	River Flood Warning	LSX	Jefferson	46 hr
Jul 2, 8:59 AM CDT	Areal Flood Warning	LSX	Boone	12 hr
Jul 2, 10:01 AM CDT	Areal Flood Warning	LSX	Cole, Moniteau, Osage	12 hr
Jul 2, 12:06 PM CDT	Areal Flood Warning	LSX	Jefferson	24 hr
Jul 2, 12:10 PM CDT	Areal Flood Warning	LSX	Franklin	6 hr
Jul 2, 12:12 PM CDT	Areal Flood Warning	LSX	Osage	24 hr
Jul 2, 4:50 PM CDT	River Flood Warning	LSX	Boone, Callaway, Cole, Moniteau	47 hr

Nearby

Flash Flood Warnings in Missouri, 2015 Every 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.