Alert archive / Missouri / Flash Flood Warnings in 2011
Flash Flood Warning 20, NWS Kansas City, MO
NWS Kansas City, MO issued this flash flood warning at Jun 23, 2011, 9:28 PM CDT for Atchison County, Missouri. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 23, 2011, 9:28 PM CDT (02:28 UTC)
- Expired
- Jun 24, 2011, 9:46 AM CDT
- In force
- 12 hr
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Flood severity
- Unknown
County Atchison County, MO
The radar
The Omaha radar (KOAX), 112 km from the middle of the area, began a volume at 02:27 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.
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 2.5 hours before the alert went out and 112 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1536 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
723
WGUS53 KEAX 240228
FFWEAX
MOC005-240815-
/O.NEW.KEAX.FF.W.0020.110624T0228Z-110624T1530Z/
/00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
928 PM CDT THU JUN 23 2011
THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A
* FLASH FLOOD WARNING FOR A LEVEE FAILURE IN...
WESTERN ATCHISON COUNTY IN NORTHWEST MISSOURI...
* UNTIL 1030 AM CDT
* AT 921 PM CDT...A LEVEE ON THE MISSOURI RIVER FAILED 3 MILES NORTH
OF BROWNVILLE NEBRASKA...CAUSING FLASH FLOODING OF AREAS NEAR THE
LEVEE FAILURE. EMERGENCY MANAGEMENT OFFICIALS ARE URGING
PEOPLE IN THE MISSOURI RIVER FLOOD PLAIN WEST OF INTERSTATE 29
IN ATCHISON COUNTY MISSOURI TO EVACUATE TO HIGHER GROUND AS SOON AS
POSSIBLE.
* LOCATIONS IMPACTED INCLUDE PHELPS CITY...LANGDON AND WATSON
WESTERN ATCHISON COUNTY IN NORTHWEST MISSOURI...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.
A FLASH FLOOD WARNING MEANS FLASH 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. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
&&
LAT...LON 4059 9577 4058 9566 4026 9546 4027 9556
4029 9556 4031 9566 4034 9563 4041 9566
4045 9565 4046 9568 4048 9570 4049 9569
4051 9570 4052 9566 4054 9566 4056 9568
4052 9570 4052 9576 4058 9578
$$
CDB3 follow-up statements
679
WGUS53 KEAX 240229 CCA
FFWEAX
MOC005-241530-
/O.COR.KEAX.FF.W.0020.110624T0228Z-110624T1530Z/
/00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
928 PM CDT THU JUN 23 2011
THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A
* FLASH FLOOD WARNING FOR A LEVEE FAILURE IN...
WESTERN ATCHISON COUNTY IN NORTHWEST MISSOURI...
* UNTIL 1030 AM CDT
* AT 921 PM CDT...A LEVEE ON THE MISSOURI RIVER FAILED 3 MILES NORTH
OF BROWNVILLE NEBRASKA...CAUSING FLASH FLOODING OF AREAS NEAR THE
LEVEE FAILURE. EMERGENCY MANAGEMENT OFFICIALS ARE URGING
PEOPLE IN THE MISSOURI RIVER FLOOD PLAIN WEST OF INTERSTATE 29
IN ATCHISON COUNTY MISSOURI TO EVACUATE TO HIGHER GROUND AS SOON AS
POSSIBLE.
* LOCATIONS IMPACTED INCLUDE PHELPS CITY...LANGDON AND WATSON
WESTERN ATCHISON COUNTY IN NORTHWEST MISSOURI...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.
A FLASH FLOOD WARNING MEANS FLASH FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS WATER COVERED BRIDGES...DIPS...OR LOW WATER
CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM... EVEN A SMALL ONE...
ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
&&
LAT...LON 4059 9577 4058 9566 4026 9546 4027 9556
4029 9556 4031 9566 4034 9563 4041 9566
4045 9565 4046 9568 4048 9570 4049 9569
4051 9570 4052 9566 4054 9566 4056 9568
4052 9570 4052 9576 4058 9578
$$
CDB648
WGUS73 KEAX 240729
FFSEAX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
229 AM CDT FRI JUN 24 2011
MOC005-241530-
/O.CON.KEAX.FF.W.0020.000000T0000Z-110624T1530Z/
/00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ATCHISON MO-
229 AM CDT FRI JUN 24 2011
...A FLASH FLOOD WARNING FOR A LEVEE FAILURE REMAINS IN EFFECT FOR
WESTERN ATCHISON COUNTY UNTIL 1030 AM CDT...
AT 215 AM CDT...LOCAL LAW ENFORCEMENT CONTINUED TO REPORT A LEVEE
FAILURE ON THE MISSOURI RIVER 3 MILES NORTH OF BROWNVILLE NEBRASKA.
SINCE 9 PM...THE RIVER STAGE AT BROWNVILLE NEBRASKA HAS FALLEN OVER
ONE AND A HALF FEET...SUGGESTING THAT COPIOUS AMOUNTS OF WATER HAS
SPILLED INTO THE NEARBY FLOOD PLAIN WEST OF INTERSTATE 29. ALTHOUGH
MOST PERSONS IN THE REGION HAVE ALREADY EVACUATED...ANY PERSONS
STILL LEFT IN THE AREA ARE URGED TO SEEK HIGHER GROUND. NUMEROUS
ROAD CLOSURES CONTINUE IN THE AREA SO CONTACT LAW ENFORCEMENT TO
ASSIST YOU WITH EVACUATION PLANS.
LOCATIONS IMPACTED INCLUDE PHELPS CITY...LANGDON AND WATSON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.
A FLASH FLOOD WARNING MEANS FLASH 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. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
&&
LAT...LON 4059 9577 4058 9566 4026 9546 4027 9556
4029 9556 4031 9566 4034 9563 4041 9566
4045 9565 4046 9568 4048 9570 4049 9569
4051 9570 4052 9566 4054 9566 4056 9568
4052 9570 4052 9576 4058 9578
$$
BOOKBINDER859
WGUS73 KEAX 241446
FFSEAX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
946 AM CDT FRI JUN 24 2011
MOC005-241500-
/O.CAN.KEAX.FF.W.0020.000000T0000Z-110624T1530Z/
/00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ATCHISON MO-
946 AM CDT FRI JUN 24 2011
...THE FLASH FLOOD WARNING FOR LEVEE FAILURE AND OVERTOPPING THAT
WAS IN EFFECT FOR WESTERN ATCHISON COUNTY IS CANCELLED...
WATER FROM THE MISSOURI RIVER HAS NOW COVERED MUCH OF FAR WESTERN
ATCHISON COUNTY...WITH GRADUAL RISES EXPECTED OVER THE NEXT 24
HOURS. THIS FLASH FLOOD WARNING HAS BEEN REPLACED BY AN AREAL FLOOD
WARNING THROUGH SATURDAY MORNING. TRAVEL ON MANY STATE AND LOCAL
ROADWAYS WEST OF INTERSTATE 29 WILL BECOME IMPOSSIBLE...IF NOT
ALREADY.
LAT...LON 4059 9577 4058 9566 4026 9546 4027 9556
4029 9556 4031 9566 4034 9563 4041 9566
4045 9565 4046 9568 4048 9570 4049 9569
4051 9570 4052 9566 4054 9566 4056 9568
4052 9570 4052 9576 4058 9578
$$
21The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 6:04 AM CDT | Special Weather Statement | EAX | Johnson | 26 min |
| Jun 24, 9:31 AM CDT | Areal Flood Warning | EAX | Atchison, Holt | 6 days |
Nearby
Flash Flood Warnings in Missouri, 2011Every flash flood warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.