Alert archive / Kansas / Flash Flood Warnings in 2016
Flash Flood Warning 37, NWS Topeka, KS
NWS Topeka, KS issued this flash flood warning at Sep 24, 2016, 6:40 PM CDT for Nemaha County, Kansas. It was in force for 4 hr. 3 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
- Sep 24, 2016, 6:40 PM CDT (23:40 UTC)
- Expired
- Sep 24, 2016, 10:45 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), 86 km from the middle of the area, began a volume at 23:41 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 |
|---|---|---|---|
| Sep 24, 6:40 PM CDT | FLASH FLOOD | Centralia, KS | FLOODING IS OCCURRING IN SEVERAL PARTS OF NEMAHA COUNTY, INCLUDING CENTRALIA. K187 IS CLOSED BETWEEN MM 3 AND MM 4, A COUNTY ROAD IS CLOSED NEAR SENECA, AND PORTIONS OF TENNESSEE CREEK AND THE NEMAHA RIVER ARE OUT OF THEIR BANKS NEAR SENECA. |
| Sep 24, 7:34 PM CDT | FLASH FLOOD | 2 Sse Seneca, KS | FLASH FLOODING CONTINUES IN NEMAHA COUNTY, SPECIFICALLY NEAR THE TOWNS OF SENECA AND CENTRALIA. |
| Sep 24, 9:40 PM CDT | HEAVY RAIN 2.75 | Sabetha, KS | . |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Topeka, KS (KFOE), launched 12:00Z, 11.7 hours before the alert went out and 87 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.
- Mixed-layer CAPE
- 991 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 977 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
024 WGUS53 KTOP 242340 FFWTOP KSC131-250345- /O.NEW.KTOP.FF.W.0037.160924T2340Z-160925T0345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TOPEKA KS 640 PM CDT SAT SEP 24 2016 THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A * FLASH FLOOD WARNING FOR... NEMAHA COUNTY IN NORTHEASTERN KANSAS... * UNTIL 1045 PM CDT * AT 640 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... SABETHA...SENECA...CENTRALIA...WETMORE...BERN...CORNING...GOFF... ONEIDA...WOODLAWN AND BAILEYVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. && LAT...LON 3957 9579 3957 9624 4000 9624 4000 9579 $$ 27
2 follow-up statements
251 WGUS73 KTOP 250038 FFSTOP FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 738 PM CDT SAT SEP 24 2016 KSC131-250345- /O.CON.KTOP.FF.W.0037.000000T0000Z-160925T0345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEMAHA- 738 PM CDT SAT SEP 24 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR NEMAHA COUNTY... AT 736 PM CDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING IN NEMAHA COUNTY, INCLUDING ALONG K187 AND NEAR THE TOWNS OF SENECA AND CENTRALIA. MORE THAN 3 INCHES OF RAIN HAS BEEN REPORTED WITHIN THE WARNED AREA AND SOME ADDITIONAL RAIN IS POSSIBLE THROUGH TONIGHT. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... SABETHA...SENECA...CENTRALIA...WETMORE...BERN...CORNING...GOFF... ONEIDA...WOODLAWN AND BAILEYVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. && LAT...LON 3957 9579 3957 9624 4000 9624 4000 9579 $$ BB
754 WGUS73 KTOP 250341 RRA FFSTOP FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 1041 PM CDT SAT SEP 24 2016 KSC131-250351- /O.EXP.KTOP.FF.W.0037.000000T0000Z-160925T0345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEMAHA- 1041 PM CDT SAT SEP 24 2016 ...THE FLASH FLOOD WARNING FOR NEMAHA COUNTY WILL EXPIRE AT 1045 PM CDT... THE HEAVY RAIN HAS ENDED. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES. LAT...LON 3957 9579 3957 9624 4000 9624 4000 9579 $$ SANDERS
The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 24, 1:26 PM CDT | Special Weather Statement | TOP | Marshall | 34 min |
| Sep 24, 2:58 PM CDT | Special Weather Statement | TOP | Pottawatomie | 32 min |
| Sep 24, 5:33 PM CDT | Areal Flood Advisory | TOP | Pottawatomie, Riley | 3 hr |
| Sep 24, 6:25 PM CDT | Special Weather Statement | TOP | Osage | 35 min |
| Sep 24, 6:35 PM CDT | Areal Flood Advisory | TOP | Nemaha | 3 hr |
Nearby
Flash Flood Warnings in Kansas, 2016Every flash flood warning in 2016
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.