Alert archive / Missouri / Flash Flood Warnings in 2016

Flash Flood Warning 45, NWS Kansas City, MO

August 28, 2016Platte County, Missouri

NWS Kansas City, MO issued this flash flood warning at Aug 28, 2016, 10:04 PM CDT for Platte County, Missouri. It was in force for 2 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
Aug 28, 2016, 10:04 PM CDT (03:04 UTC)
Expired
Aug 29, 2016, 12:30 AM CDT
In force
2 hr
Issued by
NWS Kansas City, MO
Area
Storm-based polygon
Flood severity
None

County Platte County, MO

The radar

The Pleasant Hill radar (KEAX), 58 km from the middle of the area, began a volume at 03:05 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

Topeka, KS (KFOE), launched 00:00Z, 3.1 hours before the alert went out and 83 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 2016-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1611 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 2016-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939Sfc1 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
1611 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1337 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted.

912 
WGUS53 KEAX 290304
FFWEAX
MOC165-290530-
/O.NEW.KEAX.FF.W.0045.160829T0304Z-160829T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1004 PM CDT SUN AUG 28 2016

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN PLATTE COUNTY IN WEST CENTRAL MISSOURI...

* UNTIL 1230 AM CDT

* AT 1003 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO AN ESTIMATED THREE AND A
  HALF INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS
  EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  KANSAS CITY...PARKVILLE...RIVERSIDE...WEATHERBY LAKE...
  LAKE WAUKOMIS...PLATTE WOODS...HOUSTON LAKE AND WALDRON.

ADDITIONAL RAINFALL AMOUNTS OF ONE HALF TO ONE INCH OF RAIN
ARE POSSIBLE IN THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3930 9475 3923 9461 3915 9464 3915 9466
      3917 9466 3919 9468 3917 9472 3918 9476
      3921 9478 3921 9481

$$

JULY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 7:14 PM CDTSpecial Weather StatementEAXGrundy, Mercer31 min
Aug 28, 7:27 PM CDTFlash Flood WarningEAXGrundy3 hr
Aug 28, 8:13 PM CDTSpecial Weather StatementEAXCass, Jackson, Platte32 min
Aug 28, 8:15 PM CDTAreal Flood AdvisoryEAXClay, Jackson, Platte3 hr
Aug 28, 8:54 PM CDTSpecial Weather StatementEAXJackson, Platte36 min
Aug 29, 3:17 PM CDTFlash Flood WatchEAXAndrew, Atchison, Buchanan, Holt, Nodaway24 hr
Aug 29, 5:54 PM CDTSpecial Weather StatementEAXHarrison36 min
Aug 29, 6:14 PM CDTSevere Thunderstorm WarningEAXSchuyler46 min

Nearby

Flash Flood Warnings in Missouri, 2016Every flash flood warning in 2016

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.