Alert archive / Kansas / Flash Flood Warnings in 2016

Flash Flood Warning 30, NWS Topeka, KS

August 28, 2016Washington County, Kansas

NWS Topeka, KS issued this flash flood warning at Aug 28, 2016, 9:25 PM CDT for Washington County, Kansas. It was in force for 3 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, 9:25 PM CDT (02:25 UTC)
Expired
Aug 29, 2016, 12:30 AM CDT
In force
3 hr
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Flood severity
None

County Washington County, KS

The radar

The Topeka radar (KTWX), 125 km from the middle of the area, began a volume at 02:29 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, 2.4 hours before the alert went out and 159 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.

275 
WGUS53 KTOP 290225
FFWTOP
KSC201-290530-
/O.NEW.KTOP.FF.W.0030.160829T0225Z-160829T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
925 PM CDT SUN AUG 28 2016

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN WASHINGTON COUNTY IN NORTH CENTRAL KANSAS...

* UNTIL 1230 AM CDT

* AT 923 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAS
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY...
  ESPECIALLY ON DEVILS CREEK NORTH OF WASHINGTON. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  WASHINGTON...MORROWVILLE...HADDAM...MAHASKA AND HOLLENBERG. 

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4000 9686 3976 9692 3979 9737 4000 9737

$$
1 follow-up statement
597 
WGUS73 KTOP 290349
FFSTOP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1049 PM CDT SUN AUG 28 2016

KSC201-290530-
/O.CON.KTOP.FF.W.0030.000000T0000Z-160829T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON-
1049 PM CDT SUN AUG 28 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR
NORTHERN WASHINGTON COUNTY...

AT 1047 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. AS MUCH AS 4 TO 6 INCHES OF RAIN
HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY ON
THE MYER...BOWMAN...SALT AND DEVILS CREEKS. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WASHINGTON...MORROWVILLE...HADDAM...MAHASKA AND HOLLENBERG. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

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

&&

LAT...LON 4000 9686 3976 9692 3979 9737 4000 9737

$$

The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 28, 8:11 PM CDTAreal Flood AdvisoryTOPPottawatomie, Shawnee, Wabaunsee94 min
Aug 28, 8:16 PM CDTSevere Thunderstorm WarningTOPRepublic, Washington17 min
Aug 28, 8:51 PM CDTAreal Flood AdvisoryTOPWashington114 min
Aug 28, 10:34 PM CDTRiver Flood WarningTOPWashington34 hr
Aug 28, 10:46 PM CDTFlash Flood WarningTOPRepublic119 min
Aug 28, 11:55 PM CDTFlash Flood WarningTOPRepublic, Washington6 hr
Aug 29, 5:56 AM CDTAreal Flood WarningTOPRepublic, Washington4 hr
Aug 29, 10:26 AM CDTAreal Flood WarningTOPRepublic, Washington2 hr
Aug 29, 11:46 AM CDTFlash Flood WatchTOPBrown, Clay, Cloud, Dickinson, Geary, Jackson and 7 more36 hr
Aug 29, 2:23 PM CDTSpecial Weather StatementTOPClay22 min
Aug 29, 2:56 PM CDTSpecial Weather StatementTOPRepublic34 min
Aug 29, 3:03 PM CDTSpecial Weather StatementTOPOttawa27 min
Aug 29, 4:56 PM CDTAreal Flood AdvisoryTOPCloud, Republic2 hr

Nearby

Flash Flood Warnings in Kansas, 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.