Alert archive / Kansas / Flash Flood Warnings in 2008

Flash Flood Warning 39, NWS Topeka, KS

August 6, 2008Coffey County, Kansas

NWS Topeka, KS issued this flash flood warning at Aug 6, 2008, 2:04 AM CDT for Coffey County, Kansas. It was in force for 6 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 6, 2008, 2:04 AM CDT (07:04 UTC)
Expired
Aug 6, 2008, 7:49 AM CDT
In force
6 hr
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Flood severity
None

County Coffey County, KS

The radar

The Topeka radar (KTWX), 90 km from the middle of the area, began a volume at 06:55 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, 7.1 hours before the alert went out and 88 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 2008-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2112 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 2008-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
2112 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
988 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
168 m²/s²
Significant tornado parameter
0.7
Supercell composite
3.2

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KTOP 060704
FFWTOP
KSC031-061000-
/O.NEW.KTOP.FF.W.0039.080806T0704Z-080806T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
204 AM CDT WED AUG 6 2008

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN COFFEY COUNTY IN EAST CENTRAL KANSAS...

* UNTIL 500 AM CDT

* AT 200 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 3 
  TO 6 INCHES OF RAIN HAD FALLEN IN THE JOHN REDMOND RESERVOIR AREA  
  EARLY THIS MORNING...AND ADDITIONAL RAINFALL IS LIKELY. RUNOFF     
  FROM THIS RAIN WILL LEAD TO FLASH FLOODING NEAR THE RESERVOIR. 

* LOCATIONS IMPACTED INCLUDE...
  BURLINGTON...
  NEW STRAWN...
  JOHN REDMOND RESERVOIR...

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

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

LAT...LON 3816 9596 3817 9595 3824 9596 3825 9595
      3832 9595 3841 9594 3829 9570 3811 9574

$$
3 follow-up statements
000 
WGUS73 KTOP 060919
FFSTOP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
419 AM CDT WED AUG 6 2008

KSC031-061000-
/O.CON.KTOP.FF.W.0039.000000T0000Z-080806T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COFFEY-
419 AM CDT WED AUG 6 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 AM CDT FOR
WESTERN COFFEY COUNTY...

AT 412 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
EXTREMELY HEAVY RAINFALL OF FOUR TO EIGHT INCHES HAD FALLEN IN THE 
JOHN REDMOND RESERVOIR AREA EARLY THIS MORNING. RUNOFF FROM THIS 
RAINFALL WILL CAUSE FLASH FLOODING. 

LOCATIONS IMPACTED INCLUDE...
BURLINGTON...NEW STRAWN AND JOHN REDMOND RESERVOIR.

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.

LAT...LON 3816 9596 3817 9595 3824 9596 3825 9595
      3832 9595 3841 9594 3829 9570 3811 9574

$$
000 
WGUS53 KTOP 060957
FFWTOP
KSC031-061300-
/O.EXT.KTOP.FF.W.0039.000000T0000Z-080806T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
457 AM CDT WED AUG 6 2008

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  WESTERN COFFEY COUNTY IN EAST CENTRAL KANSAS...

* UNTIL 800 AM CDT

* AT 447 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
HEAVY RAINFALL CONTINUED IN PORTIONS OF COFFEY COUNTY. NEAR JOHN 
REDMOND RESERVOIR...ONE TO TWO INCHES HAS FALLEN SINCE 4 AM...WITH 
TOTAL RAINFALL AMOUNTS IN THE FIVE TO EIGHT INCH RANGE. THE 
PERSISTENT HEAVY RAINFALL WILL CONTINUE CREATE A HIGH LIKELIHOOD OF 
FLASH FLOODING THIS MORNING. 

* LOCATIONS IMPACTED INCLUDE...
  BURLINGTON...
  NEW STRAWN...
  JOHN REDMOND RESERVOIR...

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

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
TOPEKA.

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

LAT...LON 3816 9596 3817 9595 3824 9596 3825 9595
      3832 9595 3841 9594 3829 9570 3811 9574

$$
000 
WGUS73 KTOP 061249
FFSTOP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
749 AM CDT WED AUG 6 2008

KSC031-061259-
/O.CAN.KTOP.FF.W.0039.000000T0000Z-080806T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COFFEY-
749 AM CDT WED AUG 6 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WESTERN COFFEY
COUNTY...

AT 749 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE
VERY HEAVY RAIN HAS ENDED...AND THE POSSIBILITY FOR FLASH FLOODING
WILL CONTINUE TO DECREASE. THEREFORE THE FLASH FLOOD WARNING IS NO
LONGER IN EFFECT.

LAT...LON 3816 9596 3817 9595 3824 9596 3825 9595
      3832 9595 3841 9594 3829 9570 3811 9574

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 1:13 AM CDTAreal Flood AdvisoryTOPAnderson2 hr
Aug 6, 1:16 AM CDTAreal Flood AdvisoryTOPCoffey119 min
Aug 6, 2:02 AM CDTFlash Flood WarningTOPAnderson3 hr
Aug 6, 3:26 AM CDTAreal Flood AdvisoryTOPLyon2 hr
Aug 6, 4:00 AM CDTFlash Flood WarningTOPLyon3 hr

Nearby

Flash Flood Warnings in Kansas, 2008Every flash flood warning in 2008

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.