Alert archive / Kansas / Flash Flood Warnings in 2021
Flash Flood Warning 29, NWS Topeka, KS
NWS Topeka, KS issued this flash flood warning at Aug 27, 2021, 7:07 PM CDT for Republic County, Kansas. It was in force for 2 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 27, 2021, 7:07 PM CDT (00:07 UTC)
- Expired
- Aug 27, 2021, 9:35 PM CDT
- In force
- 2 hr
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Flood severity
- None
County Republic County, KS
The radar
The Grand Island radar (KUEX), 96 km from the middle of the area, began a volume at 00:06 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, 0.1 hours before the alert went out and 186 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
- 1919 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1671 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
519
WGUS53 KTOP 280007
FFWTOP
KSC157-280400-
/O.NEW.KTOP.FF.W.0029.210828T0007Z-210828T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Topeka KS
707 PM CDT Fri Aug 27 2021
The National Weather Service in Topeka has issued a
* Flash Flood Warning for...
Northeastern Republic County in north central Kansas...
* Until 1100 PM CDT.
* At 706 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to five inches of rain have
fallen. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flooding include...
Munden and Narka.
Additional rainfall amounts of one to two are possible in the warned
area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT...LON 3992 9737 3986 9749 3990 9756 4000 9743
4000 9737
FLASH FLOOD...RADAR INDICATED
$$
Baerg2 follow-up statements
252
WGUS73 KTOP 280058
FFSTOP
Flash Flood Statement
National Weather Service Topeka KS
758 PM CDT Fri Aug 27 2021
KSC157-280400-
/O.CON.KTOP.FF.W.0029.000000T0000Z-210828T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Republic-
758 PM CDT Fri Aug 27 2021
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
NORTHEASTERN REPUBLIC COUNTY...
At 757 PM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Up to five inches of rain have fallen.
Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other drainage
and low lying areas.
Some locations that will experience flooding include...
Munden and Narka.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT...LON 3992 9737 3986 9749 3990 9756 4000 9743
4000 9737
FLASH FLOOD...RADAR INDICATED
$$
Baerg558
WGUS73 KTOP 280235
FFSTOP
Flash Flood Statement
National Weather Service Topeka KS
935 PM CDT Fri Aug 27 2021
KSC157-280244-
/O.CAN.KTOP.FF.W.0029.000000T0000Z-210828T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Republic-
935 PM CDT Fri Aug 27 2021
...THE FLASH FLOOD WARNING FOR NORTHEASTERN REPUBLIC COUNTY IS
CANCELLED...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.
LAT...LON 3992 9737 3986 9749 3990 9756 4000 9743
4000 9737
$$
BaergNearby
Flash Flood Warnings in Kansas, 2021Every flash flood warning in 2021
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.