Alert archive / Missouri / Flash Flood Warnings in 2009

Flash Flood Warning 49, NWS Kansas City, MO

October 8, 2009Cooper County, Pettis County, Missouri

NWS Kansas City, MO issued this flash flood warning at Oct 8, 2009, 7:03 AM CDT for Cooper County, Pettis County, Missouri. It was in force for 6 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: Oct 8, 2009, 7:03 AM CDT (12:03 UTC)
Expired: Oct 8, 2009, 1:00 PM CDT
In force: 6 hr
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Flood severity: None

Counties Cooper County, MO, Pettis County, MO

The radar

The Pleasant Hill radar (KEAX), 109 km from the middle of the area, began a volume at 12:04 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
Oct 8, 8:00 AM CDT	FLASH FLOOD	3 S Boonville, MO	FLOODING ON U HIGHWAY 1 MILE SOUTH OF INTERSTATE 70 AND ALSO ON HIGHWAY 87 NEAR CLARKS FORK ROAD.

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, 0.1 hours before the alert went out and 216 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: 30 J/kg
Mixed-layer CIN: -290 J/kg
Mixed-layer LCL: 469 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 415 m²/s²
0-3 km storm-relative helicity: 442 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.6

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KEAX 081203
FFWEAX
MOC053-159-081800-
/O.NEW.KEAX.FF.W.0049.091008T1203Z-091008T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
703 AM CDT THU OCT 8 2009

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  COOPER COUNTY IN CENTRAL MISSOURI...
  PETTIS COUNTY IN CENTRAL MISSOURI...

* UNTIL 100 PM CDT THURSDAY

* AT 658 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUING
  ACROSS THE WARNED AREA. RADAR RAINFALL ESTIMATES BETWEEN ONE
  AND ONE HALF AND TWO INCHES HAVE FALLEN ACROSS THE WARNED 
  AREA...WITH ISOLATED AMOUNTS NEAR TWO AND THREE QUARTERS
  OF AN INCH NEAR BOONVILLE.  ADDITIONAL RAINFALL OF UP TO
  ONE INCH IS EXPECTED AS ANOTHER BAND OF THUNDERSTORMS MOVES 
  NORTHWARD FROM SOUTHERN MISSOURI. 


* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SEDALIA...BUNCETON...GREEN RIDGE...HOUSTONIA...LA MONTE...
  OTTERVILLE...PILOT GROVE AND SMITHTON.

  WATER IS BEGINNING TO FLOW OVER THE ROAD ALONG HIGHWAY U JUST
  SOUTH OF INTERSTATE 70.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...
COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND
OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

&&

LAT...LON 3868 9262 3869 9306 3853 9308 3854 9327
      3850 9328 3851 9351 3893 9350 3893 9306
      3895 9305 3896 9254 3893 9251

$$

SF

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 8, 4:04 AM CDT	Areal Flood Advisory	EAX	Bates, Cass, Johnson	3 hr
Oct 8, 5:51 AM CDT	Areal Flood Advisory	EAX	Cooper, Pettis	84 min
Oct 8, 6:45 AM CDT	Flash Flood Warning	EAX	Johnson	6 hr
Oct 8, 7:18 AM CDT	River Flood Warning	EAX	Cooper	62 hr
Oct 8, 7:21 AM CDT	Flash Flood Warning	EAX	Cass	6 hr
Oct 8, 7:45 AM CDT	Flash Flood Warning	EAX	Henry	6 hr
Oct 8, 8:11 AM CDT	Areal Flood Advisory	EAX	Bates, Henry	50 min
Oct 8, 8:30 AM CDT	River Flood Warning	EAX	Cass, Henry, Johnson	41 hr
Oct 8, 8:34 AM CDT	River Flood Warning	EAX	Bates, Cass, Henry	58 hr
Oct 8, 8:46 AM CDT	Flash Flood Warning	EAX	Bates, Henry	4 hr
Oct 8, 9:24 AM CDT	River Flood Warning	EAX	Johnson, Pettis	51 hr
Oct 8, 9:24 AM CDT	River Flood Warning	EAX	Cooper, Saline	6 days
Oct 8, 9:24 AM CDT	River Flood Warning	EAX	Cooper	51 hr
Oct 8, 9:24 AM CDT	River Flood Warning	EAX	Howard	21 hr
Oct 8, 9:52 AM CDT	River Flood Warning	EAX	Bates	19 hr
Oct 8, 9:56 AM CDT	Areal Flood Advisory	EAX	Cooper, Howard, Johnson, Lafayette, Saline	6 hr
Oct 8, 1:07 PM CDT	Areal Flood Warning	EAX	Bates, Cass, Cooper, Henry, Howard, Johnson and 1 more	24 hr

Nearby

Flash Flood Warnings in Missouri, 2009 Every flash flood warning in 2009

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.