Alert archive / Missouri / Flash Flood Warnings in 2017

Flash Flood Warning 38, NWS Kansas City, MO

August 22, 2017Clay County, Jackson County, Platte County, Missouri; Johnson County, Leavenworth County, Wyandotte County, Kansas

NWS Kansas City, MO issued this flash flood warning at Aug 22, 2017, 12:04 AM CDT for Clay County, Jackson County, Platte County, Missouri; Johnson County, Leavenworth County, Wyandotte County, Kansas. It was in force for 8 hr. 12 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
Aug 22, 2017, 12:04 AM CDT (05:04 UTC)
Expired
Aug 22, 2017, 8:00 AM CDT
In force
8 hr
Issued by
NWS Kansas City, MO
Area
Storm-based polygon
Emergency
Flash flood emergency
Flood severity
None

Counties Johnson County, KS, Leavenworth County, KS, Wyandotte County, KS, Clay County, MO, Jackson County, MO, Platte County, MO

The radar

The Pleasant Hill radar (KEAX), 51 km from the middle of the area, began a volume at 05:07 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

TimeReportWhereRemark
Aug 22, 12:40 AM CDTFLASH FLOODKansas City, MORAMP FROM US 71 TO I-670 IS FLOODED. VEHICLE STRANDED.
Aug 22, 12:56 AM CDTFLASH FLOOD2 Ese Olathe, KSSEVERAL FEET OF STANDING WATER ALONG CREEK AT 143RD AND LOCUST.
Aug 22, 1:11 AM CDTFLASH FLOOD2 E Kansas City, MOWATER RESCUE AT 12TH AND JACKSON.
Aug 22, 2:05 AM CDTFLASH FLOOD3 Wsw Raytown, MOWATER RESCUE NEAR SWOPE PARK.
Aug 22, 2:35 AM CDTFLASH FLOOD2 Wsw Riverside, MO2 FEET OF WATER TRAPPED EMPLOYEES IN THEIR BUSINESSES IN THE HORIZONS INDUSTRIAL DISTRICT.
Aug 22, 2:46 AM CDTFLASH FLOOD5 Nw Grandview, MOINDIAN CREEK RUSHING OVER THE WORNALL ROAD BRIDGE.
Aug 22, 2:49 AM CDTFLASH FLOOD2 N Raytown, MOWATER RESCUE. WOMAN SWEPT INTO ROUND GROVE CREEK NEAR RAYTOWN ROAD.
Aug 22, 2:58 AM CDTFLASH FLOOD3 Wsw Grandview, MOAPARTMENT COMPLEX BEING EVACUATED ALONG HOLMES RD.
Aug 22, 5:04 AM CDTHEAVY RAIN 9.25 S Kansas City, MO
Aug 22, 5:30 AM CDTHEAVY RAIN 9.31 S De Soto, KS
Aug 22, 5:51 AM CDTFLASH FLOOD3 Nw Grandview, MOWATER RESCUE IN PROGRESS AT E RED BRIDGE RD AND BLUE RIVER RD.
Aug 22, 8:02 AM CDTHEAVY RAIN 7.95Weatherby Lake, MO

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

The nearest sounding before it

Topeka, KS (KFOE), launched 00:00Z, 5.1 hours before the alert went out and 84 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-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2017-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2114 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2017-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2114 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1421 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.6
Supercell composite
9.7

Open this sounding in Storm Lab

The text

As transmitted.

697 
WGUS53 KEAX 220504
FFWEAX
KSC091-103-209-MOC047-095-165-221300-
/O.NEW.KEAX.FF.W.0038.170822T0504Z-170822T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Kansas City/Pleasant Hill MO
1204 AM CDT TUE AUG 22 2017

...FLASH FLOOD EMERGENCY FOR THE KANSAS CITY METRO...

The National Weather Service in Pleasant Hill has issued a

* Flash Flood Warning for...
  Wyandotte County in northeastern Kansas...
  Leavenworth County in northeastern Kansas...
  Johnson County in east central Kansas...
  Clay County in west central Missouri...
  Platte County in west central Missouri...
  Jackson County in west central Missouri...

* Until 800 AM CDT Tuesday

* At 1201 AM CDT, Doppler radar indicated thunderstorms with very 
  heavy rain across the warned area. Flash flooding is already 
  occurring, and will continue to worsen through the early morning 
  hours. Water rescues are ongoing throughout the Kansas City area, 
  and creeks and streams are rising rapidly.

This is a FLASH FLOOD EMERGENCY for the Kansas City Metropolitan 
Area. This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER GROUND 
NOW! 

* Some locations that will experience flooding include...
  Kansas City, Overland Park, Olathe, Independence, Lee's Summit,
  Shawnee, Blue Springs, Lenexa, Leavenworth, Leawood, Raytown,
  Liberty, Gladstone, Grandview, Prairie Village, Gardner, Grain
  Valley, Lansing, Excelsior Springs and Merriam.

This includes the following highways...
 Interstate 70 in Missouri between mile markers 0 and 29.
 Interstate 70 in Kansas between mile markers 410 and 423.
 Interstate 35 in Missouri between mile markers 0 and 32.
 Interstate 35 in Kansas between mile markers 202 and 235.
 Interstate 29 between mile markers 0 and 25.
 Interstate 635 between mile markers 0 and 12.
 Interstate 470 between mile markers 0 and 16.
 Interstate 435 between mile markers 0 and 83.
 Kansas Turnpike between mile markers 206 and 226.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now. This is an extremely dangerous and
life-threatening situation. Do not attempt to travel unless you are
fleeing an area subject to flooding or under an evacuation order.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3942 9518 3942 9497 3945 9499 3947 9460
      3945 9422 3945 9421 3921 9421 3921 9417
      3918 9419 3914 9410 3888 9412 3883 9427
      3885 9461 3874 9461 3874 9506 3898 9506
      3899 9508 3896 9509 3898 9516 3897 9519

$$

Laflin
1 follow-up statement
894 
WGUS73 KEAX 221242
FFSEAX

Flash Flood Statement
National Weather Service Kansas City/Pleasant Hill MO
742 AM CDT TUE AUG 22 2017

KSC091-103-209-MOC047-095-165-221251-
/O.CAN.KEAX.FF.W.0038.000000T0000Z-170822T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wyandotte KS-Leavenworth KS-Johnson KS-Clay MO-Platte MO-Jackson MO-
742 AM CDT TUE AUG 22 2017

...THE FLASH FLOOD WARNING FOR WYANDOTTE...LEAVENWORTH...JOHNSON...
CLAY...PLATTE AND JACKSON COUNTIES IS CANCELLED...

The heavy rain has ended. However, flooding is still on going across 
the warning area posing a threat. Please continue to heed any 
remaining road closures. 

LAT...LON 3942 9518 3942 9497 3945 9499 3947 9460
      3945 9422 3945 9421 3921 9421 3921 9417
      3918 9419 3914 9410 3888 9412 3883 9427
      3885 9461 3874 9461 3874 9506 3898 9506
      3899 9508 3896 9509 3898 9516 3897 9519

$$

Cutter

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 7:14 PM CDTSpecial Weather StatementEAXCooper31 min
Aug 21, 8:02 PM CDTSpecial Weather StatementEAXClay, Platte43 min
Aug 21, 8:41 PM CDTSevere Thunderstorm WarningEAXBuchanan, Platte32 min
Aug 21, 9:09 PM CDTFlash Flood WarningEAXBuchanan, Platte6 hr
Aug 21, 9:26 PM CDTSevere Thunderstorm WarningEAXClay, Jackson, Platte34 min
Aug 21, 9:45 PM CDTFlash Flood WarningEAXClay6 hr
Aug 21, 9:53 PM CDTFlash Flood WarningEAXJackson, Platte6 hr
Aug 21, 9:54 PM CDTRiver Flood WarningEAXClay, Platte34 hr
Aug 21, 10:02 PM CDTFlash Flood WarningEAXClay6 hr
Aug 21, 10:20 PM CDTRiver Flood WarningEAXCooper, Saline7 days
Aug 21, 10:20 PM CDTRiver Flood WarningEAXRay45 hr
Aug 21, 10:23 PM CDTRiver Flood WarningEAXCarroll, Lafayette, Saline59 hr
Aug 21, 10:46 PM CDTFlash Flood WarningEAXJackson6 hr
Aug 21, 11:07 PM CDTRiver Flood WarningEAXJackson28 hr
Aug 21, 11:12 PM CDTRiver Flood WarningEAXJackson33 hr
Aug 21, 11:43 PM CDTRiver Flood WarningEAXJackson30 hr
Aug 21, 11:45 PM CDTFlash Flood WarningEAXCass8 hr
Aug 22, 12:42 AM CDTAreal Flood AdvisoryEAXCass, Henry, Johnson, Lafayette6 hr
Aug 22, 12:51 AM CDTRiver Flood WarningEAXJackson37 hr
Aug 22, 12:51 AM CDTRiver Flood WarningEAXJackson34 hr
Aug 22, 12:51 AM CDTRiver Flood WarningEAXJackson33 hr
Aug 22, 12:51 AM CDTRiver Flood WarningEAXJackson36 hr
Aug 22, 1:45 AM CDTFlash Flood WarningEAXCass, Henry, Johnson6 hr
Aug 22, 1:47 AM CDTRiver Flood WarningEAXCass, Henry, Johnson4 days
Aug 22, 1:47 AM CDTRiver Flood WarningEAXBates, Cass, Henry4 days
Aug 22, 2:23 AM CDTRiver Flood WarningEAXJackson19 hr
Aug 22, 2:23 AM CDTRiver Flood WarningEAXJackson39 hr
Aug 22, 2:40 AM CDTRiver Flood WarningEAXCarroll54 hr
Aug 22, 2:51 AM CDTAreal Flood AdvisoryEAXBates, Henry4 hr
Aug 22, 3:09 AM CDTAreal Flood WarningEAXBuchanan, Platte6 hr
Aug 22, 3:15 AM CDTFlash Flood WarningEAXBates, Henry6 hr
Aug 22, 3:53 AM CDTRiver Flood WarningEAXJohnson, Pettis3 days
Aug 22, 3:53 AM CDTRiver Flood WarningEAXPlatte49 hr
Aug 22, 3:53 AM CDTRiver Flood WarningEAXPlatte55 hr
Aug 22, 5:20 AM CDTRiver Flood WarningEAXJackson30 hr
Aug 22, 5:20 AM CDTRiver Flood WarningEAXJackson28 hr
Aug 22, 5:20 AM CDTRiver Flood WarningEAXJackson29 hr
Aug 22, 5:41 AM CDTRiver Flood WarningEAXCooper39 hr
Aug 22, 5:57 AM CDTRiver Flood WarningEAXClay, Jackson, Ray70 hr
Aug 22, 5:57 AM CDTRiver Flood WarningEAXJackson, Lafayette, Ray3 days
Aug 22, 7:37 AM CDTAreal Flood WarningEAXCass, Clay, Clinton, Henry, Jackson, Johnson and 3 more12 hr
Aug 22, 8:46 AM CDTRiver Flood WarningEAXBates5 days
Aug 22, 9:01 AM CDTAreal Flood WarningEAXBates, Henry60 hr
Aug 22, 9:33 AM CDTRiver Flood WarningEAXCarroll, Chariton, Saline4 days
Aug 22, 9:33 AM CDTRiver Flood WarningEAXChariton, Howard, Saline3 days
Aug 22, 9:33 AM CDTRiver Flood WarningEAXCooper, Howard4 days
Aug 22, 4:09 PM CDTRiver Flood WarningEAXCooper34 hr
Aug 21, 7:22 PM CDTFlash Flood WarningEAXAtchison6 hr
Aug 21, 8:52 PM CDTSpecial Weather StatementEAXJohnson, Leavenworth, Wyandotte38 min
Aug 21, 9:30 PM CDTSevere Thunderstorm WarningEAXJohnson, Leavenworth30 min
Aug 21, 9:55 PM CDTSevere Thunderstorm WarningEAXJohnson, Leavenworth, Wyandotte35 min
Aug 21, 10:22 PM CDTSevere Thunderstorm WarningEAXJohnson, Miami18 min
Aug 21, 10:48 PM CDTRiver Flood WarningEAXAtchison, Leavenworth51 hr
Aug 21, 10:48 PM CDTRiver Flood WarningEAXLeavenworth50 hr
Aug 21, 11:25 PM CDTRiver Flood WarningEAXJohnson30 hr
Aug 22, 2:41 AM CDTSpecial Weather StatementEAXJohnson34 min
Aug 22, 4:34 AM CDTRiver Flood WarningEAXMiami3 days
Aug 22, 4:34 AM CDTRiver Flood WarningEAXLinn5 days

Nearby

Flash Flood Warnings in Missouri, 2017Flash Flood Warnings in Kansas, 2017Every flash flood warning in 2017

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.