Alert archive / Missouri / Flash Flood Warnings in 2011

Flash Flood Warning 17, NWS Kansas City, MO

June 19, 2011Atchison County, Missouri

NWS Kansas City, MO issued this flash flood warning at Jun 19, 2011, 12:47 PM CDT for Atchison County, Missouri. It was in force for 24 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 19, 2011, 12:47 PM CDT (17:47 UTC)
Expired: Jun 20, 2011, 12:30 PM CDT
In force: 24 hr
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Flood severity: None

County Atchison County, MO

The radar

The Omaha radar (KOAX), 113 km from the middle of the area, began a volume at 17:48 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 12:00Z, 5.8 hours before the alert went out and 113 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: 2130 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 594 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

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

773 
WGUS53 KEAX 191747
FFWEAX
MOC005-201730-
/O.NEW.KEAX.FF.W.0017.110619T1747Z-110620T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1247 PM CDT SUN JUN 19 2011

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* FLASH FLOOD WARNING FOR RAPID RIVER RISES IN...
  WESTERN ATCHISON COUNTY IN NORTHWEST MISSOURI...

* UNTIL 1230 PM CDT MONDAY

* AT 1239 PM CDT...LOCAL EMERGENCY MANAGEMENT REPORTED LOCATIONS OF  
  OVERTOPPING LEVEES IN FAR WESTERN ATCHISON COUNTY. WATER LEVELS ON 
  THE MISSOURI RIVER IN FAR NORTHWEST MISSOURI HAVE RISEN ONE TO ONE 
  AND A HALF FEET SINCE LAST NIGHT...WHICH WAS REACHING THE TOP OF   
  LEVEE PROTECTION.

* FLOODING IS OCCURRING OVER MAINLY RURAL AREAS OF WESTERN ATCHISON  
  COUNTY...GENERALLY WEST OF INTERSTATE 29.

STAY TUNED TO YOUR LOCAL MEDIA AND LAW ENFORCEMENT FOR THE LATEST 
FLOOD INFORMATION AND FORECASTS FROM THE NATIONAL WEATHER SERVICE 
FOR THE LATEST INFORMATION. YOU CAN ALSO VISIT THE NATIONAL WEATHER 
SERVICE WEB PAGE FOR THE LATEST DETAILS. WWW.WEATHER.GOV/KC

LAT...LON 4059 9566 4027 9547 4027 9556 4029 9556
      4031 9566 4034 9563 4041 9566 4044 9565
      4045 9565 4048 9570 4049 9569 4051 9570
      4052 9566 4054 9566 4056 9568 4052 9570
      4052 9576 4058 9577

$$

21

1 follow-up statement

454 
WGUS73 KEAX 201740
FFSEAX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1240 PM CDT MON JUN 20 2011

MOC005-201753-
/O.EXP.KEAX.FF.W.0017.000000T0000Z-110620T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ATCHISON MO-
1240 PM CDT MON JUN 20 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WESTERN ATCHISON
COUNTY HAS BEEN ALLOWED TO EXPIRE...

EMERGENCY OFFICIALS INDICATE WATER OVERTOPPING LEVEES IN WESTERN 
ATCHISON COUNTY HAS DECREASED IN VOLUME. HOWEVER...PERSONS IN FAR 
WESTERN ATCHISON COUNTY LIVING NEAR LEVEE PROTECTION FROM THE 
MISSOURI RIVER ARE URGED TO EVACUATE DUE TO THE PROLONGED MAJOR 
FLOODING. 

LAT...LON 4059 9566 4027 9547 4027 9556 4029 9556
      4031 9566 4034 9563 4041 9566 4044 9565
      4045 9565 4048 9570 4049 9569 4051 9570
      4052 9566 4054 9566 4056 9568 4052 9570
      4052 9576 4058 9577

$$

21

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 7:55 PM CDT	Special Weather Statement	EAX	Cass	35 min
Jun 18, 7:59 PM CDT	Special Weather Statement	EAX	Pettis	31 min
Jun 18, 8:18 PM CDT	Severe Thunderstorm Warning	EAX	Henry, Pettis	27 min
Jun 18, 8:31 PM CDT	Special Weather Statement	EAX	Cass	29 min
Jun 18, 8:40 PM CDT	Severe Thunderstorm Warning	EAX	Cass	35 min
Jun 18, 8:44 PM CDT	Severe Thunderstorm Warning	EAX	Henry, Pettis	46 min
Jun 18, 9:05 PM CDT	Severe Thunderstorm Warning	EAX	Cass	25 min
Jun 18, 9:12 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass, Henry	48 min
Jun 18, 9:20 PM CDT	Severe Thunderstorm Warning	EAX	Pettis	25 min
Jun 18, 9:30 PM CDT	Severe Thunderstorm Warning	EAX	Johnson, Lafayette, Pettis, Saline	30 min
Jun 18, 9:34 PM CDT	Flash Flood Warning	EAX	Cass	5 hr
Jun 18, 9:37 PM CDT	Special Weather Statement	EAX	Cass	38 min
Jun 18, 9:40 PM CDT	Severe Thunderstorm Warning	EAX	Cass, Jackson	35 min
Jun 18, 9:58 PM CDT	Severe Thunderstorm Warning	EAX	Cass, Johnson	32 min
Jun 18, 10:26 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass, Henry	34 min
Jun 18, 10:40 PM CDT	Severe Thunderstorm Warning	EAX	Jackson, Johnson, Lafayette	35 min
Jun 18, 11:08 PM CDT	Special Weather Statement	EAX	Lafayette	52 min
Jun 18, 11:21 PM CDT	Severe Thunderstorm Warning	EAX	Lafayette, Ray	24 min
Jun 18, 11:25 PM CDT	Special Weather Statement	EAX	Cass	50 min
Jun 18, 11:27 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass, Henry	33 min
Jun 18, 11:42 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Lafayette, Ray	48 min
Jun 19, 12:11 AM CDT	River Flood Warning	EAX	Bates, Cass, Henry	31 hr
Jun 19, 12:13 AM CDT	Special Weather Statement	EAX	Macon	47 min
Jun 19, 12:30 AM CDT	Special Weather Statement	EAX	Cass	45 min
Jun 19, 12:38 AM CDT	Severe Thunderstorm Warning	EAX	Carroll	21 min
Jun 19, 12:43 AM CDT	Special Weather Statement	EAX	Platte	47 min
Jun 19, 12:58 AM CDT	Severe Thunderstorm Warning	EAX	Platte	32 min
Jun 19, 1:05 AM CDT	Flash Flood Warning	EAX	Holt	9 hr
Jun 19, 1:23 AM CDT	Special Weather Statement	EAX	Jackson	52 min
Jun 19, 2:15 AM CDT	Special Weather Statement	EAX	Randolph	15 min
Jun 19, 2:19 AM CDT	Special Weather Statement	EAX	Linn	11 min
Jun 19, 2:21 AM CDT	Areal Flood Advisory	EAX	Cass, Clay, Jackson, Platte	4 hr
Jun 19, 3:03 AM CDT	Flash Flood Warning	EAX	Bates, Cass, Henry	6 hr
Jun 19, 4:01 AM CDT	Special Weather Statement	EAX	Adair	29 min
Jun 19, 6:19 AM CDT	River Flood Warning	EAX	Cass, Henry, Johnson	23 hr
Jun 19, 7:10 AM CDT	Flash Flood Warning	EAX	Atchison	6 hr
Jun 19, 10:04 AM CDT	Flash Flood Warning	EAX	Holt	24 hr

Nearby

Flash Flood Warnings in Missouri, 2011 Every 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.