Alert archive / Kansas / Flash Flood Warnings in 2021
Flash Flood Warning 35, NWS Goodland, KS
NWS Goodland, KS issued this flash flood warning at Aug 16, 2021, 12:25 AM CDT for Norton 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
- Aug 16, 2021, 12:25 AM CDT (05:25 UTC)
- Expired
- Aug 16, 2021, 3:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Flood severity
- None
County Norton County, KS
The radar
The Goodland radar (KGLD), 148 km from the middle of the area, began a volume at 05:27 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
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 5.4 hours before the alert went out and 153 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
- 2233 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 1683 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 239 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 14.5
The text
As transmitted.
550
WGUS53 KGLD 160525
FFWGLD
KSC137-160830-
/O.NEW.KGLD.FF.W.0035.210816T0525Z-210816T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Goodland KS
1225 AM CDT Mon Aug 16 2021
The National Weather Service in Goodland has issued a
* Flash Flood Warning for...
Western Norton County in northwestern Kansas...
* Until 330 AM CDT.
* At 1225 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Norcatur, Clayton and Reager.
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 3992 10018 3992 9993 3966 9992 3965 10018
FLASH FLOOD...RADAR INDICATED
$$
JN3 follow-up statements
047
WGUS73 KGLD 160539
FFSGLD
Flash Flood Statement
National Weather Service Goodland KS
1239 AM CDT Mon Aug 16 2021
KSC137-160830-
/O.CON.KGLD.FF.W.0035.000000T0000Z-210816T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Norton KS-
1239 AM CDT Mon Aug 16 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 AM CDT EARLY THIS
MORNING FOR WESTERN NORTON COUNTY...
At 1239 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Norcatur, Clayton and Reager.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3992 10018 3992 9993 3966 9992 3965 10018
FLASH FLOOD...RADAR INDICATED
$$
JN096
WGUS73 KGLD 160714
FFSGLD
Flash Flood Statement
National Weather Service Goodland KS
214 AM CDT Mon Aug 16 2021
KSC137-160830-
/O.CON.KGLD.FF.W.0035.000000T0000Z-210816T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Norton KS-
214 AM CDT Mon Aug 16 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 AM CDT EARLY THIS
MORNING FOR WESTERN NORTON COUNTY...
At 214 AM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Up to 2 inches of rain have fallen.
Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Norcatur, Clayton and Reager.
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 3992 10018 3992 9993 3966 9992 3965 10018
FLASH FLOOD...RADAR INDICATED
$$
Lundquist433 WGUS73 KGLD 160826 FFSGLD Flash Flood Statement National Weather Service Goodland KS 326 AM CDT Mon Aug 16 2021 KSC137-160836- /O.EXP.KGLD.FF.W.0035.000000T0000Z-210816T0830Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Norton KS- 326 AM CDT Mon Aug 16 2021 ...FLASH FLOOD WARNING WILL EXPIRE AT 330 AM CDT EARLY THIS MORNING FOR WESTERN NORTON COUNTY... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. LAT...LON 3992 10018 3992 9993 3966 9992 3965 10018 $$ Lundquist
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 11:52 PM CDT | Special Weather Statement | GLD | Norton | 23 min |
| Aug 16, 12:15 AM CDT | Special Weather Statement | GLD | Norton | 30 min |
| Aug 16, 12:49 AM CDT | Special Weather Statement | GLD | Graham | 41 min |
| Aug 16, 1:52 AM CDT | Special Weather Statement | GLD | Graham | 38 min |
| Aug 16, 2:27 AM CDT | Special Weather Statement | GLD | Graham | 33 min |
| Aug 16, 2:57 AM CDT | Special Weather Statement | GLD | Sheridan | 33 min |
| Aug 16, 3:32 AM CDT | Flash Flood Warning | GLD | Decatur | 4 hr |
| Aug 16, 4:28 AM CDT | Special Weather Statement | GLD | Norton | 47 min |
Nearby
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.