Alert archive / Kansas / Flash Flood Warnings in 2018

Flash Flood Warning 4, NWS Topeka, KS

June 19, 2018Republic County, Washington County, Kansas

NWS Topeka, KS issued this flash flood warning at Jun 19, 2018, 7:16 PM CDT for Republic County, Washington County, Kansas. It was in force for 6 hr. 4 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
Jun 19, 2018, 7:16 PM CDT (00:16 UTC)
Expired
Jun 20, 2018, 1:15 AM CDT
In force
6 hr
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Flood severity
None

Counties Republic County, KS, Washington County, KS

The radar

The Grand Island radar (KUEX), 89 km from the middle of the area, began a volume at 00:19 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
Jun 19, 7:40 PM CDTHEAVY RAIN 3.82 Nne Courtland, KSAPPROXIMATELY 1 HR 45 MIN RAINFALL TOTAL SO FAR, STILL RAINING.
Jun 19, 8:30 PM CDTHEAVY RAIN 5.755 Ssw Republic, KSCOUNTY REPORTED THAT MEMBER OF THE PUBLIC REPORTED RAIN TOTAL SO FAR WITH RAIN STILL ONGOING.
Jun 19, 8:40 PM CDTFLASH FLOOD5 Ssw Republic, KSSEVERAL INCHES OF WATER REPORTED OVER A HIGHWAY ROAD.
Jun 19, 9:05 PM CDTFLASH FLOODCourtland, KSRESTAURANT OWNER MENTIONED THAT SOME TOWN ROADS WERE IMPASSABLE WITH SEVERAL INCHES OVER SOME ROADS.

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

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.3 hours before the alert went out and 182 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, Omaha, NE at 00:00Z on 2018-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1806 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, Omaha, NE at 00:00Z on 2018-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
1806 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
818 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

As transmitted.

782 
WGUS53 KTOP 200016
FFWTOP
KSC157-201-200615-
/O.NEW.KTOP.FF.W.0004.180620T0016Z-180620T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Topeka KS
716 PM CDT TUE JUN 19 2018

The National Weather Service in Topeka has issued a

* Flash Flood Warning for...
  Northern Republic County in north central Kansas...
  Northwestern Washington County in north central Kansas...

* Until 115 AM CDT.

* At 715 PM CDT, trained weather spotters reported thunderstorms
  producing heavy rain across the warned area. Flash flooding is
  expected to begin shortly.

* Some locations that will experience flooding include...
  Belleville, Scandia, Courtland, Republic, Munden, Narka and
  Mahaska.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

&&

LAT...LON 4000 9721 3991 9734 3976 9793 4000 9793

$$

Hennecke
3 follow-up statements
129 
WGUS73 KTOP 200200
FFSTOP

Flash Flood Statement
National Weather Service Topeka KS
900 PM CDT TUE JUN 19 2018

KSC157-201-200615-
/O.CON.KTOP.FF.W.0004.000000T0000Z-180620T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Republic-Washington-
900 PM CDT TUE JUN 19 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM CDT FOR
NORTHERN REPUBLIC AND NORTHWESTERN WASHINGTON COUNTIES...

At 840 PM CDT, local law enforcement reported heavy rain due to a 
thunderstorm along Highway 266 with several inches of rain covering 
the road. Flash flooding is ongoing over this area.

Some locations that will experience flooding include...
Belleville, Scandia, Courtland, Republic, Munden, Narka and Mahaska. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

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

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

&&

LAT...LON 4000 9721 3991 9734 3976 9793 4000 9793

$$

BD
755 
WGUS73 KTOP 200235
FFSTOP

Flash Flood Statement
National Weather Service Topeka KS
935 PM CDT TUE JUN 19 2018

KSC157-201-200615-
/O.CON.KTOP.FF.W.0004.000000T0000Z-180620T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Republic-Washington-
935 PM CDT TUE JUN 19 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM CDT FOR
NORTHERN REPUBLIC AND NORTHWESTERN WASHINGTON COUNTIES...

At 905 PM CDT, the public reported flash flooding occurring in 
Courtland with some roads impassable and several inches of rushing 
water flowing over some roads. Be aware that Flash flooding is 
already occurring.

Some locations that will experience flooding include...
Belleville, Scandia, Courtland, Republic, Munden, Narka and Mahaska. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

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

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 4000 9721 3991 9734 3976 9793 4000 9793

$$

BD
058 
WGUS73 KTOP 200614
FFSTOP

Flash Flood Statement
National Weather Service Topeka KS
114 AM CDT WED JUN 20 2018

KSC157-201-200621-
/O.EXP.KTOP.FF.W.0004.000000T0000Z-180620T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Republic-Washington-
114 AM CDT WED JUN 20 2018

...THE FLASH FLOOD WARNING FOR NORTHERN REPUBLIC AND NORTHWESTERN
WASHINGTON COUNTIES WILL EXPIRE AT 115 AM CDT...

Flood waters have been receding. This flood warning has been 
replaced by an aereal flood warning due to a decreasing flash flood 
threat. Please continue to heed any remaining road closures.

LAT...LON 4000 9721 3991 9734 3976 9793 4000 9793

$$

BD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 7:03 PM CDTSpecial Weather StatementTOPWashington27 min
Jun 19, 7:14 PM CDTSevere Thunderstorm WarningTOPRepublic61 min
Jun 19, 7:31 PM CDTSpecial Weather StatementTOPWashington29 min
Jun 19, 7:35 PM CDTSevere Thunderstorm WarningTOPWashington55 min
Jun 19, 8:04 PM CDTSevere Thunderstorm WarningTOPCloud, Republic56 min
Jun 19, 8:34 PM CDTFlash Flood WarningTOPClay, Cloud, Republic, Washington5 hr
Jun 19, 9:00 PM CDTSpecial Weather StatementTOPCloud, Washington60 min
Jun 19, 9:29 PM CDTSpecial Weather StatementTOPOttawa46 min
Jun 19, 9:55 PM CDTSevere Thunderstorm WarningTOPClay, Dickinson, Ottawa65 min
Jun 19, 10:16 PM CDTSpecial Weather StatementTOPRiley44 min
Jun 19, 10:27 PM CDTSpecial Weather StatementTOPGeary33 min
Jun 19, 10:54 PM CDTSpecial Weather StatementTOPMarshall, Pottawatomie, Riley51 min
Jun 19, 10:56 PM CDTSpecial Weather StatementTOPGeary, Morris49 min
Jun 20, 12:33 AM CDTRiver Flood WarningTOPMarshall54 hr
Jun 20, 12:33 AM CDTRiver Flood WarningTOPCloud68 hr
Jun 20, 12:33 AM CDTRiver Flood WarningTOPClay64 hr
Jun 20, 12:33 AM CDTRiver Flood WarningTOPRepublic20 hr
Jun 20, 12:45 AM CDTSpecial Weather StatementTOPOttawa60 min
Jun 20, 1:10 AM CDTAreal Flood WarningTOPCloud, Republic, Washington6 hr
Jun 20, 1:29 AM CDTSpecial Weather StatementTOPDickinson46 min
Jun 20, 2:10 AM CDTSpecial Weather StatementTOPClay, Geary, Riley50 min
Jun 20, 3:04 AM CDTSpecial Weather StatementTOPMarshall, Pottawatomie41 min
Jun 20, 5:53 PM CDTSpecial Weather StatementTOPRepublic37 min
Jun 20, 6:02 PM CDTSevere Thunderstorm WarningTOPRepublic42 min
Jun 20, 6:25 PM CDTSpecial Weather StatementTOPRepublic35 min
Jun 20, 6:36 PM CDTSpecial Weather StatementTOPCloud24 min
Jun 20, 6:50 PM CDTSpecial Weather StatementTOPRepublic25 min
Jun 20, 6:56 PM CDTSpecial Weather StatementTOPWashington34 min

Nearby

Flash Flood Warnings in Kansas, 2018Every flash flood warning in 2018

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.