Alert archive / Missouri / Flash Flood Warnings in 2009

Flash Flood Warning 21, NWS Kansas City, MO

May 15, 20096 counties in Missouri; Atchison County, Leavenworth County, Kansas

NWS Kansas City, MO issued this flash flood warning at May 15, 2009, 4:55 PM CDT for 6 counties in Missouri; Atchison County, Leavenworth County, Kansas. It was in force for 5 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: May 15, 2009, 4:55 PM CDT (21:55 UTC)
Expired: May 15, 2009, 10:00 PM CDT
In force: 5 hr
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Flood severity: None

Counties Atchison County, KS, Leavenworth County, KS, Buchanan County, MO, Caldwell County, MO, Clay County, MO, Clinton County, MO, Platte County, MO, Ray County, MO

The radar

The Pleasant Hill radar (KEAX), 91 km from the middle of the area, began a volume at 21:57 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
May 15, 5:28 PM CDT	HEAVY RAIN 4.45	4 Wnw Liberty, MO	RAIN FELL IN 2.5 HOURS

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

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.9 hours before the alert went out and 93 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: 1293 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 590 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 302 m²/s²
0-3 km storm-relative helicity: 313 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 13.7

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KEAX 152155
FFWEAX
KSC005-103-MOC021-025-047-049-165-177-160300-
/O.NEW.KEAX.FF.W.0021.090515T2155Z-090516T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
455 PM CDT FRI MAY 15 2009

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CALDWELL COUNTY IN NORTH CENTRAL MISSOURI...
  CLAY COUNTY IN WEST CENTRAL MISSOURI...
  CLINTON COUNTY IN NORTHWEST MISSOURI...
  NORTHERN LEAVENWORTH COUNTY IN NORTHEAST KANSAS...
  NORTHERN RAY COUNTY IN WEST CENTRAL MISSOURI...
  PLATTE COUNTY IN WEST CENTRAL MISSOURI...
  SOUTHERN ATCHISON COUNTY IN NORTHEAST KANSAS...
  SOUTHERN BUCHANAN COUNTY IN NORTHWEST MISSOURI...

* UNTIL 1000 PM CDT

* AT 453 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE HEAVIEST THUNDERSTORMS HAVE MOVED SOUTH OF THE WARNING 
AREA...HOWEVER EXCESSIVE RUNOFF WILL CONTINUE. RADAR ESTIMATES 
INDICATE THAT MUCH OF THE AREA HAS RECEIVED BETWEEN 2 AND 4 INCHES 
OF RAIN. SPOTTERS HAVE ALSO REPORTED WIDESPREAD 2 TO 4 INCH AMOUNTS 
AND NUMEROUS AREAS WITHIN THE WARNING ARE EXPERIENCING FLOODING. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ATCHISON...CAMERON...EXCELSIOR SPRINGS...GOWER...KEARNEY...
  LANSING...LATHROP...LAWSON...LEAVENWORTH...NORTONVILLE...PLATTE
  CITY...PLATTSBURG...SMITHVILLE...WEATHERBY LAKE...WESTON...
  BRAYMER...CAMDEN POINT...COWGILL...CRYSTAL LAKES...DEARBORN...
  EASTON...EDGERTON...EFFINGHAM...EXCELSIOR ESTATES...FERRELVIEW...
  HOLT...KINGSTON...POLO...TRACY AND TRIMBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS... OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING
STREAM... EVEN A SMALL ONE...ON FOOT OR IN A VEHICLE.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
PLEASANT HILL.

&&

LAT...LON 3953 9556 3963 9460 3973 9462 3974 9415
      3970 9377 3933 9378 3918 9516 3941 9516
      3942 9555

$$

CDB

2 follow-up statements

000 
WGUS73 KEAX 152308
FFSEAX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
608 PM CDT FRI MAY 15 2009

KSC005-152320-
/O.CAN.KEAX.FF.W.0021.000000T0000Z-090516T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ATCHISON KS-
608 PM CDT FRI MAY 15 2009

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHERN ATCHISON 
COUNTY IS CANCELLED...IT HAS BEEN REPLACED BY A FLOOD WARNING.



LAT...LON 3941 9516 3942 9495 3948 9505 3954 9510
      3958 9505 3963 9460 3973 9462 3974 9415
      3970 9377 3933 9378 3918 9516

$$

KSC103-MOC021-025-047-049-165-177-160300-
/O.CON.KEAX.FF.W.0021.000000T0000Z-090516T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LEAVENWORTH KS-CLAY MO-RAY MO-PLATTE MO-CLINTON MO-CALDWELL MO-
BUCHANAN MO-
608 PM CDT FRI MAY 15 2009

...FLASH FLOOD WARNING FOR REMAINS IN EFFECT FOR SOUTHERN BUCHANAN...
CALDWELL...CLINTON...PLATTE...NORTHERN RAY...CLAY AND NORTHERN
LEAVENWORTH COUNTIES UNTIL 1000 PM CDT...

AT 605 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE HEAVIEST RAINFALL HAD MOVED OUT OF THE WARNED AREA. HOWEVER 
WITH MUCH OF THE AREA RECEIVING BETWEEN 2 AND 4.5 INCHES OF 
RAIN...EXCESSIVE RUNOFF WILL CONTINUE.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
EXCELSIOR SPRINGS...GOWER...KEARNEY...LANSING...LATHROP...LAWSON...
LEAVENWORTH...PLATTE CITY...PLATTSBURG...SMITHVILLE...WEATHERBY
LAKE...WESTON...BRAYMER...CAMDEN POINT...COWGILL...CRYSTAL LAKES...
DEARBORN...EASTON...EDGERTON...EXCELSIOR 
ESTATES...FERRELVIEW...HOLT...KINGSTON...POLO...TRACY...TRIMBLE AND 
WOODS HEIGHTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON
FOOT OR IN A VEHICLE.

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 PLEASANT HILL.

&&

LAT...LON 3941 9516 3942 9495 3948 9505 3954 9510
      3958 9505 3963 9460 3973 9462 3974 9415
      3970 9377 3933 9378 3918 9516

$$

CDB

000 
WGUS73 KEAX 160252
FFSEAX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
952 PM CDT FRI MAY 15 2009

KSC103-MOC021-025-047-049-165-177-160305-
/O.EXP.KEAX.FF.W.0021.000000T0000Z-090516T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LEAVENWORTH KS-CLAY MO-RAY MO-PLATTE MO-CLINTON MO-CALDWELL MO-
BUCHANAN MO-
952 PM CDT FRI MAY 15 2009

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHERN
BUCHANAN...CALDWELL...CLINTON...PLATTE...NORTHERN RAY...CLAY AND
NORTHERN LEAVENWORTH COUNTIES WILL BE ALLOWED TO EXPIRE AT 1000 PM
CDT...

THE FLASH FLOOD WARNING HAS BEEN REPLACED BY A FLOOD WARNING FOR 
CALDWELL...CLAY...CLINTON...PLATTE AND RAY COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

&&

LAT...LON 3941 9516 3942 9495 3948 9505 3954 9510
      3958 9505 3963 9460 3973 9462 3974 9415
      3970 9377 3933 9378 3918 9516

$$

CDB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 2:14 AM CDT	Special Weather Statement	EAX	Buchanan	31 min
May 15, 4:40 AM CDT	Special Weather Statement	EAX	Andrew, DeKalb	35 min
May 15, 6:12 AM CDT	Areal Flood Advisory	EAX	Andrew, Daviess, DeKalb, Gentry, Grundy, Harrison and 5 more	6 hr
May 15, 7:47 AM CDT	Flash Flood Warning	EAX	Andrew, Daviess, DeKalb, Gentry, Grundy, Harrison and 4 more	10 hr
May 15, 9:05 AM CDT	Flash Flood Warning	EAX	Adair, Putnam, Schuyler, Sullivan	8 hr
May 15, 9:20 AM CDT	Flash Flood Warning	EAX	Gentry, Harrison, Mercer, Nodaway, Putnam, Worth	8 hr
May 15, 9:59 AM CDT	Areal Flood Advisory	EAX	Caldwell, Clinton, Daviess, DeKalb, Grundy, Livingston	6 hr
May 15, 10:01 AM CDT	River Flood Warning	EAX	Adair, Macon, Putnam, Schuyler	47 hr
May 15, 10:01 AM CDT	River Flood Warning	EAX	Chariton, Macon	3 days
May 15, 10:01 AM CDT	River Flood Warning	EAX	Daviess, Gentry	3 days
May 15, 10:01 AM CDT	River Flood Warning	EAX	Daviess, Livingston	3 days
May 15, 10:01 AM CDT	River Flood Warning	EAX	Linn, Livingston	4 days
May 15, 10:01 AM CDT	River Flood Warning	EAX	Carroll, Chariton, Linn, Livingston	7 days
May 15, 10:09 AM CDT	Special Weather Statement	EAX	Livingston	36 min
May 15, 10:40 AM CDT	Special Weather Statement	EAX	DeKalb	35 min
May 15, 11:14 AM CDT	Severe Thunderstorm Warning	EAX	Holt	31 min
May 15, 11:17 AM CDT	Flash Flood Warning	EAX	Adair, Caldwell, Daviess, DeKalb, Grundy, Linn and 3 more	6 hr
May 15, 11:45 AM CDT	Special Weather Statement	EAX	Andrew	30 min
May 15, 12:13 PM CDT	Special Weather Statement	EAX	Buchanan	32 min
May 15, 12:15 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Platte	30 min
May 15, 12:16 PM CDT	Flash Flood Warning	EAX	Andrew, Buchanan, Holt	3 hr
May 15, 12:32 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan, Clinton, DeKalb	28 min
May 15, 12:43 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Platte	32 min
May 15, 12:59 PM CDT	Severe Thunderstorm Warning	EAX	Clinton, DeKalb	31 min
May 15, 1:02 PM CDT	Flash Flood Warning	EAX	Buchanan, Caldwell, Clay, Clinton, DeKalb, Platte and 1 more	4 hr
May 15, 1:15 PM CDT	Special Weather Statement	EAX	Platte	30 min
May 15, 1:19 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Clinton, Daviess, DeKalb, Ray	26 min
May 15, 1:27 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Clinton, Daviess, DeKalb, Ray	33 min
May 15, 1:42 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Clinton, Platte	33 min
May 15, 1:51 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Carroll, Livingston, Ray	24 min
May 15, 2:05 PM CDT	Special Weather Statement	EAX	Platte	25 min
May 15, 2:09 PM CDT	Special Weather Statement	EAX	Clay	36 min
May 15, 2:14 PM CDT	Special Weather Statement	EAX	Caldwell	31 min
May 15, 2:15 PM CDT	River Flood Warning	EAX	Andrew, Nodaway	20 hr
May 15, 2:15 PM CDT	River Flood Warning	EAX	Andrew, Buchanan	44 hr
May 15, 2:15 PM CDT	River Flood Warning	EAX	Grundy, Livingston	27 hr
May 15, 2:20 PM CDT	Special Weather Statement	EAX	Ray	25 min
May 15, 2:32 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Ray	28 min
May 15, 2:42 PM CDT	Special Weather Statement	EAX	Platte	33 min
May 15, 2:53 PM CDT	Special Weather Statement	EAX	Clay	37 min
May 15, 2:55 PM CDT	Flash Flood Warning	EAX	Buchanan	3 hr
May 15, 3:04 PM CDT	Special Weather Statement	EAX	Carroll, Chariton	26 min
May 15, 3:11 PM CDT	River Flood Warning	EAX	Clay, Platte	14 hr
May 15, 3:12 PM CDT	Special Weather Statement	EAX	Platte	33 min
May 15, 3:26 PM CDT	Flash Flood Warning	EAX	Carroll, Livingston	6 hr
May 15, 3:26 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Lafayette, Saline	34 min
May 15, 3:33 PM CDT	Severe Thunderstorm Warning	EAX	Chariton, Macon, Randolph	27 min
May 15, 3:41 PM CDT	River Flood Warning	EAX	Ray	41 hr
May 15, 3:41 PM CDT	River Flood Warning	EAX	Carroll, Chariton	7 days
May 15, 3:41 PM CDT	River Flood Warning	EAX	Buchanan	4 days
May 15, 3:41 PM CDT	River Flood Warning	EAX	Platte	5 days
May 15, 3:41 PM CDT	River Flood Warning	EAX	Platte	6 days
May 15, 3:41 PM CDT	River Flood Warning	EAX	Carroll	71 hr
May 15, 3:50 PM CDT	Flash Flood Warning	EAX	Clay, Jackson, Lafayette, Platte, Ray	6 hr
May 15, 3:54 PM CDT	Special Weather Statement	EAX	Ray	36 min
May 15, 3:57 PM CDT	Special Weather Statement	EAX	Randolph	33 min
May 15, 4:02 PM CDT	River Flood Warning	EAX	Clay, Ray	28 hr
May 15, 4:21 PM CDT	Special Weather Statement	EAX	Saline	24 min
May 15, 4:25 PM CDT	Severe Thunderstorm Warning	EAX	Randolph	20 min
May 15, 4:29 PM CDT	Flash Flood Warning	EAX	Carroll, Chariton, Howard, Lafayette, Saline	5 hr
May 15, 4:36 PM CDT	Special Weather Statement	EAX	Saline	24 min
May 15, 4:46 PM CDT	Severe Thunderstorm Warning	EAX	Pettis, Saline	29 min
May 15, 5:00 PM CDT	Special Weather Statement	EAX	Jackson	30 min
May 15, 5:08 PM CDT	Severe Thunderstorm Warning	EAX	Cooper, Howard, Pettis, Saline	37 min
May 15, 5:13 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Jackson	32 min
May 15, 5:15 PM CDT	Areal Flood Warning	EAX	Adair, Caldwell, Daviess, DeKalb, Gentry, Grundy and 9 more	46 hr
May 15, 5:21 PM CDT	Special Weather Statement	EAX	Lafayette	24 min
May 15, 5:36 PM CDT	Severe Thunderstorm Warning	EAX	Jackson, Lafayette	24 min
May 15, 5:39 PM CDT	Special Weather Statement	EAX	Cooper	36 min
May 15, 5:46 PM CDT	Flash Flood Warning	EAX	Howard, Randolph	4 hr
May 15, 5:54 PM CDT	Special Weather Statement	EAX	Pettis	36 min
May 15, 6:12 PM CDT	Special Weather Statement	EAX	Jackson	33 min
May 15, 6:40 PM CDT	Special Weather Statement	EAX	Jackson	35 min
May 15, 6:59 PM CDT	Areal Flood Advisory	EAX	Cass, Cooper, Howard, Jackson, Johnson, Lafayette and 2 more	3 hr
May 15, 11:54 AM CDT	Special Weather Statement	EAX	Atchison	36 min
May 15, 3:41 PM CDT	River Flood Warning	EAX	Atchison, Leavenworth	37 hr
May 15, 3:47 PM CDT	Special Weather Statement	EAX	Leavenworth	28 min
May 15, 4:16 PM CDT	Special Weather Statement	EAX	Leavenworth	29 min
May 15, 4:40 PM CDT	Severe Thunderstorm Warning	EAX	Johnson, Leavenworth, Wyandotte	35 min
May 15, 5:43 PM CDT	Special Weather Statement	EAX	Johnson	32 min

Nearby

Flash Flood Warnings in Missouri, 2009 Flash Flood Warnings in Kansas, 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.