Alert archive / Kansas / Flash Flood Warnings in 2020
Flash Flood Warning 39, NWS Topeka, KS
NWS Topeka, KS issued this flash flood warning at Jul 30, 2020, 7:43 PM CDT for Dickinson County, Morris County, Kansas. It was in force for 4 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
- Jul 30, 2020, 7:43 PM CDT (00:43 UTC)
- Expired
- Jul 31, 2020, 12:02 AM CDT
- In force
- 4 hr
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Flood severity
- None
Counties Dickinson County, KS, Morris County, KS
The radar
The Topeka radar (KTWX), 67 km from the middle of the area, began a volume at 00:45 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, 0.7 hours before the alert went out and 113 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2716 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -67 m²/s²
- 0-3 km storm-relative helicity
- -48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
186
WGUS53 KTOP 310043
FFWTOP
KSC041-127-310645-
/O.NEW.KTOP.FF.W.0039.200731T0043Z-200731T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Topeka KS
743 PM CDT Thu Jul 30 2020
The National Weather Service in Topeka has issued a
* Flash Flood Warning for...
Southeastern Dickinson County in central Kansas...
Morris County in east central Kansas...
* Until 145 AM CDT Friday.
* At 741 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Doppler radar has estimated
that 1 to 2 inches of rain has already 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...
Herington, White City, Woodbine, Wilsey, Parkerville, Latimer and
Burdick.
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 3852 9693 3861 9693 3861 9710 3887 9697
3886 9661 3852 9656
FLASH FLOOD...RADAR INDICATED
$$
Gargan2 follow-up statements
984
WGUS73 KTOP 310229
FFSTOP
Flash Flood Statement
National Weather Service Topeka KS
929 PM CDT Thu Jul 30 2020
KSC041-127-310645-
/O.CON.KTOP.FF.W.0039.000000T0000Z-200731T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dickinson-Morris-
929 PM CDT Thu Jul 30 2020
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 AM CDT FRIDAY
FOR SOUTHEASTERN DICKINSON AND MORRIS COUNTIES...
At 928 PM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Up to two inches of rain have already
fallen. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other drainage
and low lying areas.
Some locations that will experience flooding include...
Herington, White City, Woodbine, Wilsey, Parkerville, Latimer and
Burdick.
Additional rainfall amounts of up to one inch are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3852 9693 3861 9693 3861 9710 3887 9697
3886 9661 3852 9656
FLASH FLOOD...RADAR INDICATED
$$
Gargan361
WGUS73 KTOP 310502
FFSTOP
Flash Flood Statement
National Weather Service Topeka KS
1202 AM CDT Fri Jul 31 2020
KSC041-127-310512-
/O.CAN.KTOP.FF.W.0039.000000T0000Z-200731T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dickinson-Morris-
1202 AM CDT Fri Jul 31 2020
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN DICKINSON AND MORRIS
COUNTIES 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 3852 9693 3861 9693 3861 9710 3887 9697
3886 9661 3852 9656
$$The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 9:03 PM CDT | River Flood Warning | TOP | Dickinson | 49 hr |
| Jul 30, 9:03 PM CDT | River Flood Warning | TOP | Riley | 24 hr |
| Jul 31, 6:41 AM CDT | River Flood Warning | TOP | Lyon | 57 hr |
Nearby
Flash Flood Warnings in Kansas, 2020Every flash flood warning in 2020
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.