Alert archive / Kansas / Flash Flood Warnings in 2007

Flash Flood Warning 3, NWS Topeka, KS

September 6, 2007Brown County, Kansas

NWS Topeka, KS issued this flash flood warning at Sep 6, 2007, 10:28 PM CDT for Brown County, Kansas. It was in force for 4 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
Sep 6, 2007, 10:28 PM CDT (03:28 UTC)
Expired
Sep 7, 2007, 2:30 AM CDT
In force
4 hr
Issued by
NWS Topeka, KS
Area
Counties, with a storm outline in the text
Flood severity
None

County Brown County, KS

The radar

The Topeka radar (KTWX), 111 km from the middle of the area, began a volume at 03:28 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 (KTOP), launched 00:00Z, 3.5 hours before the alert went out and 96 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 2007-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1675 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 2007-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
1675 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
1502 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
272 m²/s²
Significant tornado parameter
0.5
Supercell composite
6.7

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KTOP 070331
FFWTOP
KSC013-070730-
/X.NEW.KTOP.FF.W.0003.070907T0328Z-070907T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
1028 PM CDT THU SEP 6 2007

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BROWN COUNTY IN NORTHEAST KANSAS...

* UNTIL 230 AM CDT

* AT 1023 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
VERY HEAVY RAIN FROM A CLUSTER OF THUNDERSTORMS MOVING EASTWARD INTO 
WESTERN BROWN COUNTY. RAINFALL RATES OF ONE AND A HALF TO TWO AND A 
HALF INCHES PER HOUR WERE BEING ESTIMATED BY RADAR.  AREAS OF NEMAHA 
COUNTY HAVE SEEN OVER THREE INCHES OF TOTAL RAINFALL FROM THESE 
STORMS.  RAINFALL WILL OVERSPREAD BROWN COUNTY AND CONTINUE THROUGH 
MIDNIGHT.

* LOCATIONS IMPACTED INCLUDE...
  HAMLIN...
  ROBINSON...
  RESERVE...
  MORRILL...
  IOWA SAC AND FOX RESERVATION...
  HIAWATHA...
  FAIRVIEW...

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.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST INFORMATION CONCERNING THE SEVERE WEATHER.

LAT...LON 4000 9533 3965 9533 3965 9578 3987 9578
      3988 9578 4000 9578
TIME...MOT...LOC 0328Z 180DEG 0KT 3977 9550

$$
3 follow-up statements
000 
WGUS73 KTOP 070405
FFSTOP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1102 PM CDT THU SEP 6 2007

KSC013-070730-
/X.CON.KTOP.FF.W.0003.000000T0000Z-070907T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BROWN-
1102 PM CDT THU SEP 6 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM CDT FOR BROWN
COUNTY...

AT 1057 PM CDT...A TRAINED WEATHER SPOTTER REPORTED 3.75 INCHES OF 
RAIN IN THE PREVIOUS TWO HOURS JUST TO THE NORTHWEST OF FAIRVIEW.  
RADAR INDICATED VERY HEAVY RAIN CONTINUING TO MOVE THROUGH BROWN 
COUNTY AND FLASH FLOODING IS VERY LIKELY ACROSS COUNTY INTO THE 
EARLY MORNING HOURS.

LOCATIONS IMPACTED INCLUDE...
HAMLIN...ROBINSON...RESERVE...MORRILL...IOWA SAC AND FOX
RESERVATION...HIAWATHA AND FAIRVIEW

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 4000 9533 3965 9533 3965 9578 3987 9578
      3988 9578 4000 9578
TIME...MOT...LOC 0402Z 180DEG 0KT 3977 9550

$$
000 
WGUS73 KTOP 070617
FFSTOP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
117 AM CDT FRI SEP 7 2007

KSC013-070730-
/X.CON.KTOP.FF.W.0003.000000T0000Z-070907T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BROWN-
117 AM CDT FRI SEP 7 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM CDT FOR BROWN
COUNTY...

AT 1126 PM CDT...A TRAINED WEATHER SPOTTER REPORTED 4 INCHES OF RAIN 
HAD FALLEN IN FAIRVIEW. AT 115 AM...DOPPLER RADAR INDICATED 
ADDITIONAL RAINFALL MOVING ACROSS THE COUNTY. FLASH FLOODING MAY YET 
DEVELOP IN BROWN COUNTY...ESPECIALLY IN WEST CENTRAL PORTIONS OF THE 
COUNTY.

LOCATIONS IMPACTED INCLUDE...
HAMLIN...ROBINSON...RESERVE...MORRILL...IOWA SAC AND FOX
RESERVATION...HIAWATHA AND FAIRVIEW

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

LAT...LON 4000 9533 3965 9533 3965 9578 3987 9578
      3988 9578 4000 9578
TIME...MOT...LOC 0613Z 180DEG 0KT 3977 9550

$$
000 
WGUS73 KTOP 070724
FFSTOP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
221 AM CDT FRI SEP 7 2007

KSC013-070731-
/X.EXP.KTOP.FF.W.0003.000000T0000Z-070907T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BROWN-
221 AM CDT FRI SEP 7 2007

...THE FLASH FLOOD WARNING WILL EXPIRE AT 230 AM CDT FOR BROWN
COUNTY...

AT 221 AM CDT...LOCAL LAW ENFORCEMENT REPORTS THAT WATER LEVELS
CONTINUE TO RECEDE AND NO FLOODING IS BEING REPORTED. THEREFORE 
THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 230 AM CDT.

DO NOT DRIVE INTO WATER COVERED ROADWAYS.

LAT...LON 4000 9533 3965 9533 3965 9578 3987 9578
      3988 9578 4000 9578
TIME...MOT...LOC 0721Z 180DEG 0KT 3977 9550

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 7:23 PM CDTFlash Flood WarningTOPMarshall, Nemaha2 hr
Sep 6, 7:42 PM CDTSevere Thunderstorm WarningTOPMarshall, Nemaha63 min
Sep 6, 8:19 PM CDTTornado WarningTOPMarshall, Nemaha26 min
Sep 6, 8:43 PM CDTTornado WarningTOPNemaha32 min
Sep 6, 8:46 PM CDTSevere Thunderstorm WarningTOPMarshall, Nemaha59 min
Sep 6, 9:12 PM CDTTornado WarningTOPBrown, Nemaha29 min
Sep 6, 9:28 PM CDTFlash Flood WarningTOPMarshall, Nemaha2 hr
Sep 6, 9:30 PM CDTSevere Thunderstorm WarningTOPMarshall, Washington45 min
Sep 6, 9:45 PM CDTSevere Thunderstorm WarningTOPNemaha45 min
Sep 6, 9:54 PM CDTTornado WarningTOPMarshall, Nemaha37 min
Sep 6, 10:17 PM CDTSevere Thunderstorm WarningTOPBrown58 min
Sep 6, 10:41 PM CDTSevere Thunderstorm WarningTOPClay, Cloud, Ottawa49 min
Sep 6, 11:13 PM CDTSevere Thunderstorm WarningTOPGeary, Pottawatomie, Riley, Wabaunsee47 min
Sep 6, 11:29 PM CDTFlash Flood WarningTOPMarshall, Nemaha4 hr
Sep 6, 11:34 PM CDTFlash Flood WarningTOPClay, Cloud, Ottawa4 hr
Sep 6, 11:37 PM CDTSevere Thunderstorm WarningTOPDickinson, Geary, Riley, Wabaunsee38 min
Sep 6, 11:52 PM CDTRiver Flood WarningTOPNemaha11 hr
Sep 7, 12:01 AM CDTSevere Thunderstorm WarningTOPJackson, Pottawatomie, Shawnee, Wabaunsee44 min
Sep 7, 12:20 AM CDTSevere Thunderstorm WarningTOPDouglas, Jefferson55 min
Sep 7, 1:40 AM CDTRiver Flood WarningTOPMarshall42 hr
Sep 7, 12:39 PM CDTRiver Flood WarningTOPMarshall18 hr

Nearby

Flash Flood Warnings in Kansas, 2007Every flash flood warning in 2007

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.