Alert archive / Kansas / Flash Flood Warnings in 2015

Flash Flood Warning 3, NWS Topeka, KS

May 4, 20156 counties in Kansas

NWS Topeka, KS issued this flash flood warning at May 4, 2015, 8:01 PM CDT for 6 counties in 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
May 4, 2015, 8:01 PM CDT (01:01 UTC)
Expired
May 4, 2015, 11:00 PM CDT
In force
3 hr
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Flood severity
None

Counties Clay County, KS, Dickinson County, KS, Geary County, KS, Ottawa County, KS, Pottawatomie County, KS, Riley County, KS

The radar

The Topeka radar (KTWX), 63 km from the middle of the area, began a volume at 01:01 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, 1.0 hours before the alert went out and 114 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 2015-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 331 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 2015-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 233 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
331 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
1354 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
233 m²/s²
0-3 km storm-relative helicity
250 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

706 
WGUS53 KTOP 050101
FFWTOP
KSC027-041-061-143-149-161-050400-
/O.NEW.KTOP.FF.W.0003.150505T0101Z-150505T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
801 PM CDT MON MAY 4 2015

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN DICKINSON COUNTY IN CENTRAL KANSAS...
  NORTHWESTERN GEARY COUNTY IN EAST CENTRAL KANSAS...
  SOUTHERN CLAY COUNTY IN NORTH CENTRAL KANSAS...
  SOUTHEASTERN OTTAWA COUNTY IN NORTH CENTRAL KANSAS...
  SOUTHWESTERN POTTAWATOMIE COUNTY IN NORTHEAST KANSAS...
  SOUTHERN RILEY COUNTY IN NORTHEAST KANSAS...

* UNTIL 1100 PM CDT

* AT 756 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED A 
LINE OF THUNDERSTORMS PRODUCING MODERATE TO AT TIMES HEAVY RAINFALL 
FROM MANHATTAN TO SOUTH OF SALINA. EMERGENCY MANAGEMENT HAS REPORTED 
REPORTED FLASH FLOODING IN AND AROUND MANHATTAN. AN ADDITIONAL 1 TO 
2 INCHES OF RAINFALL MAY IS EXPECTED THROUGH 11 PM...ON TOP OF THE 3 
TO 6 INCHES THAT ALREADY HAVE FALLEN ACROSS THE WARNING AREA.

* LOCATIONS IMPACTED INCLUDE...
  MANHATTAN...
  ST. GEORGE...
  NILES...
  JUNCTION CITY...
  MILFORD...
  ABILENE...
  CHAPMAN...
  SOLOMON...
  TALMAGE...

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 267 AND 313.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF CREEKS AND
STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY ROADS AND FARMLANDS
ALONG THE BANKS OF CREEKS AND STREAMS AND LOW LYING AREAS ARE SUBJECT
TO FLASH FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. MOVE TO HIGHER GROUND...AWAY FROM RISING WATER.

DO NOT DRIVE INTO AREAS WHERE THE WATER COVERS THE ROAD.

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

THIS FLASH FLOOD WARNING REPLACES THE FLASH FLOOD WARNINGS IN EFFECT 
FOR THE WARNED AREA.

&&

LAT...LON 3896 9769 3917 9736 3933 9646 3918 9632
      3915 9635 3917 9636 3917 9639 3913 9639
      3890 9692 3889 9700 3876 9737 3896 9738
      3895 9767

$$

GARGAN
2 follow-up statements
488 
WGUS73 KTOP 050203
FFSTOP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
903 PM CDT MON MAY 4 2015

KSC027-041-061-143-149-161-050400-
/O.CON.KTOP.FF.W.0003.000000T0000Z-150505T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RILEY-POTTAWATOMIE-OTTAWA-CLAY-DICKINSON-GEARY-
903 PM CDT MON MAY 4 2015

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
NORTHWESTERN GEARY...NORTHERN DICKINSON...SOUTHERN CLAY...
SOUTHEASTERN OTTAWA...SOUTHWESTERN POTTAWATOMIE AND SOUTHERN RILEY
COUNTIES...

AT 857 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THAT 
THE HEAVIER RAINFALL WAS BEGINNING TO MOVE SOUTH OF THE WARNED AREA. 
MOST OF THE WARNED AREA HAS RECEIVED BETWEEN 2 AND 5 INCHES OF 
RAINFALL. THEREFORE...RUNOFF FROM THE EARLIER HEAVY RAINFALL MAY 
CONTINUE TO CAUSE FLASH FLOODING THROUGH 11 PM.

LOCATIONS IMPACTED INCLUDE...
MANHATTAN...ST. GEORGE...NILES...JUNCTION CITY... 
MILFORD...ABILENE...CHAPMAN...ENTERPRISE...MANCHESTER...SOLOMON AND 
MILFORD LAKE.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 267 AND 313.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. MOVE TO HIGHER GROUND...AWAY FROM RISING WATER.

DO NOT DRIVE INTO AREAS WHERE THE WATER COVERS THE ROAD.

&&

LAT...LON 3896 9769 3917 9736 3933 9646 3918 9632
      3915 9635 3917 9636 3917 9639 3913 9639
      3890 9692 3889 9700 3876 9737 3896 9738
      3895 9767

$$

GARGAN
990 
WGUS73 KTOP 050400
FFSTOP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1100 PM CDT MON MAY 4 2015

KSC027-041-061-143-149-161-050404-
/O.EXP.KTOP.FF.W.0003.000000T0000Z-150505T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RILEY-POTTAWATOMIE-OTTAWA-CLAY-DICKINSON-GEARY-
1100 PM CDT MON MAY 4 2015

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1100 PM CDT FOR
NORTHWESTERN GEARY...NORTHERN DICKINSON...SOUTHERN CLAY...
SOUTHEASTERN OTTAWA...SOUTHWESTERN POTTAWATOMIE AND SOUTHERN RILEY
COUNTIES...

AT 1054 PM CDT...LOCAL LAW ENFORCEMENT REPORTS THAT THE FLASH
FLOODING IS NO LONGER OCCURRING AND RUNOFF FROM THE THUNDERSTORMS
CONTINUES TO RECEDE. THEREFORE THE FLASH FLOOD WARNING IS NO LONGER
IN EFFECT.

SOME COUNTY ROADS MAY CONTINUE TO HAVE STANDING WATER OVER THEM 
THROUGH THE MORNING HOURS. MOTORIST SHOULD USE CAUTION DRIVING IN 
AREAS WHERE FLOODING HAD OCCURED. 

LAT...LON 3896 9769 3917 9736 3933 9646 3918 9632
      3915 9635 3917 9636 3917 9639 3913 9639
      3890 9692 3889 9700 3876 9737 3896 9738
      3895 9767

$$

GARGAN

The office that day

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

IssuedProductOfficeCountiesLasted
May 4, 8:27 PM CDTAreal Flood AdvisoryTOPDickinson, Geary, Jackson, Morris, Pottawatomie, Riley and 2 more108 min
May 4, 8:31 PM CDTSpecial Weather StatementTOPDickinson29 min
May 4, 10:37 PM CDTAreal Flood AdvisoryTOPDickinson, Geary, Jackson, Lyon, Morris, Nemaha and 4 more4 hr
May 4, 11:21 PM CDTAreal Flood WarningTOPClay, Dickinson, Geary, Ottawa, Pottawatomie, Riley6 hr
May 5, 4:47 PM CDTSpecial Weather StatementTOPAnderson, Coffey, Osage58 min
May 5, 6:22 PM CDTSpecial Weather StatementTOPShawnee38 min
May 5, 6:28 PM CDTSpecial Weather StatementTOPJefferson47 min
May 5, 6:41 PM CDTSpecial Weather StatementTOPBrown, Jackson, Jefferson, Nemaha64 min

Nearby

Flash Flood Warnings in Kansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.