Alert archive / Kansas / Flash Flood Warnings in 2004

Flash Flood Warning 7, NWS Topeka, KS

May 18, 2004Brown County, Marshall County, Nemaha County, Kansas

NWS Topeka, KS issued this flash flood warning at May 18, 2004, 5:02 AM CDT for Brown County, Marshall County, Nemaha 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: May 18, 2004, 5:02 AM CDT (10:02 UTC)
Expired: May 18, 2004, 8:00 AM CDT
In force: 3 hr
Issued by: NWS Topeka, KS
Area: Counties, with a storm outline in the text

Counties Brown County, KS, Marshall County, KS, Nemaha County, KS

The radar

The Topeka radar (KTWX), 86 km from the middle of the area, began a volume at 10:05 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, 10.0 hours before the alert went out and 83 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 555 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 1487 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 207 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KTOP 181003
FFWTOP
KSC013-117-131-181300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
502 AM CDT TUE MAY 18 2004

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

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

* UNTIL 800 AM CDT

* AT 459 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS CONTINUING TO MOVE EAST ACROSS MARSHALL...NEMAHA...
  AND BROWN COUNTIES. ADDITIONAL HEAVY RAIN ACROSS THESE COUNTIES
  ON ALREADY SATURATED GROUND WILL LIKELY PRODUCE FLASH FLOODING
  THROUGH THE EARLY MORNING HOURS.

* LOCATIONS IMPACTED INCLUDE...
  FAIRVIEW
  MORRILL
  KICKAPOO RESERVATION
  POWHATTAN
  RESERVE
  HORTON
  WILLIS
  HIAWATHA
  EVEREST
  IOWA SAC AND FOX RESERVATION
  ROBINSON

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.

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

LAT...LON 3965 9534 3966 9580 3957 9580 3957 9678
          3999 9678 3999 9533

$$

2 follow-up statements

000 
WGUS73 KTOP 181211
FFSTOP
KSC013-117-131-181300-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
705 AM CDT TUE MAY 18 2004

...A FLASH FLOOD WARNING CONTINUES FOR NEMAHA...MARSHALL AND BROWN
COUNTIES UNTIL 800 AM CDT...

AT 7 AM CDT...LIGHT TO MODERATE RAIN WAS PERSISTING ACROSS 
SOUTHERN MARSHALL INTO ALL OF NEMAHA AND BROWN COUNTIES. RADAR 
ESTIMATES OF TWO AND A HALF TO THREE AND A HALF INCHES OF RAIN
FELL YESTERDAY EVENING AND OVERNIGHT MAINLY NORTH OF HIGHWAY
36. ALTHOUGH ANY ADDITIONAL HEAVY RAINFALL SHOULD STAY SOUTH OF
THE WARNED AREA THROUGH 8 AM...THE LIGHT TO MODERATE RAINFALL WILL 
AGGRAVATE ANY EXISTING FLOODING ACROSS THESE COUNTIES.        

CONTINUED RUNOFF FROM OVERNIGHT THUNDERSTORMS WILL STILL LIKELY 
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.

DO NOT DRIVE INTO AREAS WHERE THE WATER COVERS THE ROAD. THE WATER
MAY BE VERY DEEP. VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED.

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

$$

000 
WGUS73 KTOP 181306
FFSTOP
KSC013-117-131-181315-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
801 AM CDT TUE MAY 18 2004

...THE FLASH FLOOD WARNING FOR NEMAHA...MARSHALL AND BROWN COUNTIES 
WAS ALLOWED TO EXPIRE AT 8AM CDT...

LIGHT TO MODERATE RAINFALL WILL END OVER THE AREA BY AROUND 9 AM.
NO REPORTS OF FLOODING HAVE BEEN RECEIVED...ALTHOUGH RUNOFF WILL 
CONTINUE IN SOME AREAS THROUGH THE MORNING. SOME PONDING OF WATER IN 
LOW LYING AND POOR DRAINAGE AREAS IS STILL POSSIBLE HOWEVER...BUT NO
SIGNIFICANT FLOODING IS EXPECTED AT THIS TIME. THEREFORE THE WARNING 
HAS BEEN ALLOWED TO EXPIRE.

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

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 3:15 AM CDT	Severe Thunderstorm Warning	TOP	Riley	45 min
May 18, 5:00 AM CDT	Severe Thunderstorm Warning	TOP	Dickinson	45 min
May 18, 5:40 AM CDT	Severe Thunderstorm Warning	TOP	Geary, Morris, Wabaunsee	35 min
May 18, 6:40 AM CDT	Flash Flood Warning	TOP	Clay, Cloud	2 hr
May 18, 11:16 AM CDT	Severe Thunderstorm Warning	TOP	Douglas	29 min

Nearby

Flash Flood Warnings in Kansas, 2004 Every flash flood warning in 2004

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.