Alert archive / Kansas / Flash Flood Warnings in 2009

Flash Flood Warning 13, NWS Topeka, KS

May 15, 2009Nemaha County, Kansas

NWS Topeka, KS issued this flash flood warning at May 15, 2009, 10:42 AM CDT for Nemaha County, Kansas. It was in force for 4 hr. 2 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: May 15, 2009, 10:42 AM CDT (15:42 UTC)
Expired: May 15, 2009, 2:45 PM CDT
In force: 4 hr
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Flood severity: None

County Nemaha County, KS

The radar

The Topeka radar (KTWX), 104 km from the middle of the area, began a volume at 15:44 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

Time	Report	Where	Remark
May 15, 11:09 AM CDT	FLOOD	Seneca, KS	SEVERAL STREETS IN SENECA ARE CLOSED DUE TO FLOODING.
May 15, 12:43 PM CDT	HEAVY RAIN 2.75	Sw Seneca, KS	STORM TOTAL

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

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 3.7 hours before the alert went out and 106 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: 1293 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 590 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 302 m²/s²
0-3 km storm-relative helicity: 313 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 13.7

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KTOP 151542
FFWTOP
KSC131-151945-
/O.NEW.KTOP.FF.W.0013.090515T1542Z-090515T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
1042 AM CDT FRI MAY 15 2009

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN NEMAHA COUNTY IN NORTHEAST KANSAS...

* UNTIL 245 PM CDT

* AT 1036 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
A CLUSTER OF SEVERE THUNDERSTORM PRODUCING VERY HEAVY RAIN. DOPPLER 
RADAR ESTIMATES RAINFALL RATES OF ONE INCH PER HOUR. THE CLUSTER OF 
THUNDERSTORMS WILL BACK BUILD AND TRAIN ACROSS WESTERN AND NORTHERN 
NEMAHA COUNTY. AN ADDITIONAL ONE TO TWO INCHES OF RAIN MAY OCCUR 
ACROSS WESTERN AND NORTHERN NEMAHA COUNTY. 

* LOCATIONS IMPACTED INCLUDE...
  BAILEYVILLE...
  BERN...
  CENTRALIA...
  ONEIDA...
  SABETHA...
  SENECA...
  WOODLAWN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 9578 3980 9579 3968 9623 3999 9624
      4000 9623

$$

GARGAN

1 follow-up statement

000 
WGUS73 KTOP 151631
FFSTOP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1131 AM CDT FRI MAY 15 2009

KSC131-151945-
/O.CON.KTOP.FF.W.0013.000000T0000Z-090515T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEMAHA-
1131 AM CDT FRI MAY 15 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 PM CDT FOR 
NORTHERN AND CENTRAL NEMAHA COUNTY...

AT 1100 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED SEVERAL 
STREETS IN SENECA WERE CLOSED DUE TO FLOODING. THE HEAVY RAINFALL IS 
MOVING ACROSS EASTERN NEMAHA COUNTY WHERE AN ADDITIONAL INCH OF RAIN 
MAY FALL. RUNOFF FROM THE EARLIER HEAVY RAINFALL WILL CONTINUE TO 
CAUSE STREAMS AND COUNTY ROADS TO FLOOD THROUGH THE EARLY AFTERNOON 
HOURS.

LOCATIONS IMPACTED INCLUDE...
BAILEYVILLE...BERN...CENTRALIA...ONEIDA...SABETHA...SENECA AND
WOODLAWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4000 9578 3980 9579 3968 9623 3999 9624
      4000 9623

$$

GARGAN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 6:57 AM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic, Washington	48 min
May 15, 7:24 AM CDT	Severe Thunderstorm Warning	TOP	Jackson, Pottawatomie	30 min
May 15, 7:44 AM CDT	Severe Thunderstorm Warning	TOP	Marshall, Nemaha	33 min
May 15, 7:58 AM CDT	Severe Thunderstorm Warning	TOP	Washington	24 min
May 15, 8:37 AM CDT	Severe Thunderstorm Warning	TOP	Washington	23 min
May 15, 8:53 AM CDT	Severe Thunderstorm Warning	TOP	Marshall, Washington	22 min
May 15, 9:22 AM CDT	Severe Thunderstorm Warning	TOP	Marshall	23 min
May 15, 9:55 AM CDT	Severe Thunderstorm Warning	TOP	Marshall, Nemaha	35 min
May 15, 10:16 AM CDT	Areal Flood Advisory	TOP	Marshall, Nemaha	59 min
May 15, 10:16 AM CDT	Severe Thunderstorm Warning	TOP	Marshall, Nemaha	59 min
May 15, 10:45 AM CDT	Severe Thunderstorm Warning	TOP	Nemaha	30 min
May 15, 10:54 AM CDT	Severe Thunderstorm Warning	TOP	Brown	48 min
May 15, 11:10 AM CDT	Severe Thunderstorm Warning	TOP	Brown, Jackson, Nemaha	51 min
May 15, 11:18 AM CDT	Flash Flood Warning	TOP	Brown	4 hr
May 15, 12:08 PM CDT	Areal Flood Advisory	TOP	Jackson	112 min
May 15, 1:09 PM CDT	Areal Flood Advisory	TOP	Jackson, Jefferson	111 min
May 15, 2:10 PM CDT	Flash Flood Warning	TOP	Jefferson	4 hr
May 15, 2:19 PM CDT	River Flood Warning	TOP	Nemaha	12 hr
May 15, 2:27 PM CDT	Severe Thunderstorm Warning	TOP	Jackson, Jefferson, Shawnee	48 min
May 15, 3:12 PM CDT	Severe Thunderstorm Warning	TOP	Douglas, Jefferson, Shawnee	48 min
May 15, 3:19 PM CDT	Severe Thunderstorm Warning	TOP	Douglas, Jefferson, Shawnee	41 min
May 15, 3:35 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson, Morris	40 min
May 15, 3:38 PM CDT	Severe Thunderstorm Warning	TOP	Jackson, Shawnee	37 min
May 15, 3:43 PM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie, Shawnee, Wabaunsee	32 min
May 15, 3:47 PM CDT	Flash Flood Warning	TOP	Douglas, Jefferson, Shawnee	4 hr
May 15, 3:50 PM CDT	Severe Thunderstorm Warning	TOP	Geary, Riley, Wabaunsee	10 min
May 15, 3:59 PM CDT	Severe Thunderstorm Warning	TOP	Jackson, Pottawatomie, Shawnee, Wabaunsee	31 min
May 15, 4:00 PM CDT	Severe Thunderstorm Warning	TOP	Douglas, Jefferson, Osage, Shawnee	45 min
May 15, 4:11 PM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie, Shawnee, Wabaunsee	49 min
May 15, 4:18 PM CDT	Severe Thunderstorm Warning	TOP	Franklin, Osage	42 min
May 15, 4:26 PM CDT	Severe Thunderstorm Warning	TOP	Morris	49 min
May 15, 4:54 PM CDT	Flash Flood Warning	TOP	Shawnee	112 min
May 15, 4:58 PM CDT	Severe Thunderstorm Warning	TOP	Douglas, Franklin	34 min
May 15, 5:04 PM CDT	Severe Thunderstorm Warning	TOP	Lyon, Wabaunsee	26 min
May 15, 5:30 PM CDT	Severe Thunderstorm Warning	TOP	Douglas, Franklin, Osage	30 min
May 15, 5:44 PM CDT	Severe Thunderstorm Warning	TOP	Coffey, Lyon, Osage	31 min
May 15, 5:47 PM CDT	Flash Flood Warning	TOP	Coffey, Douglas, Franklin, Lyon, Osage, Wabaunsee	4 hr
May 15, 5:59 PM CDT	Severe Thunderstorm Warning	TOP	Osage	16 min
May 15, 6:11 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey, Douglas, Franklin, Osage	49 min
May 15, 6:31 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey	37 min
May 15, 6:41 PM CDT	Flash Flood Warning	TOP	Anderson, Coffey, Franklin	4 hr

Nearby

Flash Flood Warnings in Kansas, 2009 Every flash flood warning in 2009

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.