Alert archive / Missouri / Flash Flood Warnings in 2015

Flash Flood Warning 49, NWS Kansas City, MO

July 1, 2015Cass County, Jackson County, Missouri

NWS Kansas City, MO issued this flash flood warning at Jul 1, 2015, 7:55 PM CDT for Cass County, Jackson County, Missouri. It was in force for 6 hr. 10 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
Jul 1, 2015, 7:55 PM CDT (00:55 UTC)
Expired
Jul 2, 2015, 2:00 AM CDT
In force
6 hr
Issued by
NWS Kansas City, MO
Area
Storm-based polygon
Flood severity
None

Counties Cass County, MO, Jackson County, MO

The radar

The Pleasant Hill radar (KEAX), 5 km from the middle of the area, began a volume at 00:57 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

TimeReportWhereRemark
Jul 1, 8:30 PM CDTFLASH FLOODLee'S Summit, MOPICTURE VIA TWITTER OF FLOODING OVERTAKING A ROAD OFF OF HWY 50, FORCING A CAR TO STALL OUT IN THE WATER
Jul 1, 8:45 PM CDTFLASH FLOOD3 S Lee'S Summit, MOROADS FLOODED WITH CARS HALF SUBMERGED NEAR RAINTREE. PICTURE VIA SOCIAL MEDIA.
Jul 1, 8:58 PM CDTFLASH FLOOD4 Nnw Greenwood, MOFLOODING UP TO 3 FEET DEEP AT THE INTERSECTION OF 291 HIGHWAY AND HIGHWAY 50.
Jul 1, 9:08 PM CDTFLASH FLOOD2 Wnw Greenwood, MOHWY 291 CLOSED BETWEEN AT LEAST HWY 150 AND HOOK RD. DUE TO HIGH WATER OVER THE HIGHWAY. WAS STILL CLOSED AS OF 1140 PM DUE TO MUD LEFTOVER FROM THE EARLIER FLOODING.
Jul 1, 9:08 PM CDTFLASH FLOOD2 Wnw Greenwood, MOREPORTED ROAD CLOSURE DUE TO HIGH WATER AT HWY 291 AND HOOK RD. IN LEES SUMMIT
Jul 1, 9:15 PM CDTFLASH FLOOD5 Ne Belton, MOREPORT OF 3 TO 4 INCHES OF RUNNING WATER OVER HWY 150 AT PETERSON RD.
Jul 1, 9:17 PM CDTHEAVY RAIN 3.95Greenwood, MOREPORTED RAINFALL SINCE 7AM THIS MORNING
Jul 1, 9:29 PM CDTFLASH FLOOD2 Wsw Greenwood, MOTWITTER REPORT OF WATER RUSHING OVER HWY 291 IN SEVERAL SPOTS NEAR LAKE WINNEBAGO, UP TO 6 INCHES DEEP.
Jul 1, 10:05 PM CDTFLOODS Pleasant Hill, MO5-6 INCHES OF RAIN OVER HWY 58 IN NUMEROUS AREAS. HWY 58 BY LUMBER YARD IS IMPASSIBLE AT THIS TIME.
Jul 1, 10:05 PM CDTFLOODStrasburg, MO5-6 INCHES RAIN ACROSS HWY 58, DITCHES OVER FLOWING, LARGE AMOUNTS OF WATER STANDING IN FIELDS.

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, 0.9 hours before the alert went out and 116 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 2015-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 844 joules per kilogram.LCLLFCEL10008507005003002001001 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 2015-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.19395878Sfc1 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
844 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
1888 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

946 
WGUS53 KEAX 020055
FFWEAX
MOC037-095-020700-
/O.NEW.KEAX.FF.W.0049.150702T0055Z-150702T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
755 PM CDT WED JUL 1 2015

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN CASS COUNTY IN WEST CENTRAL MISSOURI...
  SOUTHERN JACKSON COUNTY IN WEST CENTRAL MISSOURI...

* UNTIL 200 AM CDT THURSDAY

* AT 751 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE   
WARNED AREA. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  GREENWOOD...LEE'S SUMMIT...PLEASANT HILL...LAKE WINNEBAGO AND LONE
  JACK.


THIS WILL IMPACT

 I-470 BETWEEN MILE MARKERS 4 AND 8.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

&&

LAT...LON 3886 9451 3897 9448 3886 9412 3872 9413
      3869 9415

$$

LEIGHTON
1 follow-up statement
914 
WGUS73 KEAX 020249
FFSEAX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
949 PM CDT WED JUL 1 2015

MOC037-095-020700-
/O.CON.KEAX.FF.W.0049.000000T0000Z-150702T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CASS MO-JACKSON MO-
949 PM CDT WED JUL 1 2015

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN JACKSON AND
NORTHEASTERN CASS COUNTIES UNTIL 200 AM CDT...

AT 943 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 2 TO 
4 INCHES OF RAIN FELL OVER A 2 TO 3 HOUR PERIOD OF TIME...CAUSING 
SEVERAL ROADS TO BECOME OVERTAKEN WITH FLOODING WATER. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
GREENWOOD...LEE'S SUMMIT...PLEASANT HILL...LAKE WINNEBAGO AND LONE
JACK.

THE RAIN HAS FINISHED FOR THE TIME BEING AND FLOODING SHOULD 
GRADUALLY WANE OVER THE NEXT SEVERAL HOURS. 


AT 915 PM 3 TO 4 INCHES OF WATER WAS RUNNING OVER HIGHWAY 150 AT 
PETERSON ROAD. 

AT 908 PM HIGHWAY 291 AND HOOK ROAD IN LEES SUMMIT WAS CLOSED DUE TO 
HIGH WATER RUNNING OVER THE ROAD. 

AT 858 PM A TRAINED SPOTTER REPORTED 3 FEET OF WATER RUNNING OVER 
HIGHWAY 291 AND HIGHWAY 50 IN LEES SUMMIT. 



THIS WILL IMPACT

 I-470 BETWEEN MILE MARKERS 4 AND 8.

LAT...LON 3886 9451 3897 9448 3886 9412 3872 9413
      3869 9415

$$

LEIGHTON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 7:07 PM CDTSpecial Weather StatementEAXLafayette38 min
Jul 1, 7:17 PM CDTTornado WarningEAXCass, Jackson, Johnson43 min
Jul 1, 7:28 PM CDTSevere Thunderstorm WarningEAXJackson47 min
Jul 1, 7:59 PM CDTTornado WarningEAXCass31 min
Jul 1, 8:18 PM CDTSevere Thunderstorm WarningEAXCass, Jackson42 min
Jul 1, 8:28 PM CDTSevere Thunderstorm WarningEAXPettis32 min
Jul 1, 8:29 PM CDTSevere Thunderstorm WarningEAXCass, Johnson46 min
Jul 1, 8:49 PM CDTSevere Thunderstorm WarningEAXHenry, Johnson, Pettis41 min
Jul 1, 8:56 PM CDTSevere Thunderstorm WarningEAXPettis39 min
Jul 1, 8:58 PM CDTTornado WarningEAXCass32 min
Jul 1, 9:24 PM CDTSevere Thunderstorm WarningEAXBates, Cass51 min
Jul 1, 9:47 PM CDTSevere Thunderstorm WarningEAXBates, Cass43 min
Jul 1, 10:07 PM CDTAreal Flood WarningEAXHenry, Johnson, Pettis16 hr
Jul 1, 10:11 PM CDTRiver Flood WarningEAXCooper41 hr
Jul 1, 10:21 PM CDTSevere Thunderstorm WarningEAXHenry39 min
Jul 1, 10:22 PM CDTTornado WarningEAXHenry38 min
Jul 1, 10:28 PM CDTFlash Flood WarningEAXBates, Cass6 hr
Jul 1, 10:31 PM CDTSevere Thunderstorm WarningEAXBates44 min
Jul 1, 10:45 PM CDTRiver Flood WarningEAXHoward31 hr
Jul 1, 11:27 PM CDTSevere Thunderstorm WarningEAXBates48 min
Jul 1, 11:58 PM CDTFlash Flood WarningEAXBates6 hr
Jul 2, 12:19 AM CDTSevere Thunderstorm WarningEAXBates41 min
Jul 2, 1:58 AM CDTAreal Flood WarningEAXCass, Jackson12 hr
Jul 2, 6:46 AM CDTRiver Flood WarningEAXBates, Cass, Henry41 hr
Jul 2, 1:59 PM CDTAreal Flood WarningEAXCass24 hr
Jul 2, 2:04 PM CDTAreal Flood WarningEAXPettis24 hr

Nearby

Flash Flood Warnings in Missouri, 2015Every flash flood warning in 2015

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.