Alert archive / Kansas / Flash Flood Warnings in 2021
Flash Flood Warning 20, NWS Goodland, KS
NWS Goodland, KS issued this flash flood warning at May 25, 2021, 4:25 AM CDT for Decatur County, Rawlins County, Kansas. It was in force for 86 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 25, 2021, 4:25 AM CDT (09:25 UTC)
- Expired
- May 25, 2021, 5:51 AM CDT
- In force
- 86 min
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Flood severity
- None
Counties Decatur County, KS, Rawlins County, KS
The radar
The Goodland radar (KGLD), 73 km from the middle of the area, began a volume at 09:26 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, 9.4 hours before the alert went out and 154 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
- 925 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 863 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.9
The text
As transmitted.
640
WGUS53 KGLD 250925
FFWGLD
KSC039-153-251230-
/O.NEW.KGLD.FF.W.0020.210525T0925Z-210525T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Goodland KS
425 AM CDT Tue May 25 2021
The National Weather Service in Goodland has issued a
* Flash Flood Warning for...
Northwestern Decatur County in northwestern Kansas...
Central Rawlins County in northwestern Kansas...
* Until 730 AM CDT.
* At 425 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...Doppler radar.
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 flash flooding include...
Oberlin, Atwood, McDonald, Herndon, Ludell, Blakeman, Beardsley
and Traer.
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.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT...LON 3963 10138 3988 10137 4000 10062 3979 10047
FLASH FLOOD...RADAR INDICATED
$$
JN2 follow-up statements
254
WGUS73 KGLD 250946
FFSGLD
Flash Flood Statement
National Weather Service Goodland KS
446 AM CDT Tue May 25 2021
KSC039-153-251230-
/O.CON.KGLD.FF.W.0020.000000T0000Z-210525T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Decatur KS-Rawlins KS-
446 AM CDT Tue May 25 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 AM CDT THIS
MORNING FOR NORTHWESTERN DECATUR AND CENTRAL RAWLINS COUNTIES...
At 445 AM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
Some locations that will experience flash flooding include...
Oberlin, Atwood, McDonald, Herndon, Ludell, Blakeman, Beardsley
and Traer.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT...LON 3963 10138 3988 10137 4000 10062 3979 10047
FLASH FLOOD...RADAR INDICATED
$$
JN820 WGUS73 KGLD 251051 FFSGLD Flash Flood Statement National Weather Service Goodland KS 551 AM CDT Tue May 25 2021 KSC039-153-251101- /O.CAN.KGLD.FF.W.0020.000000T0000Z-210525T1230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Decatur KS-Rawlins KS- 551 AM CDT Tue May 25 2021 ...FLASH FLOOD WARNING IS CANCELLED FOR NORTHWESTERN DECATUR AND CENTRAL RAWLINS COUNTIES... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. LAT...LON 3963 10138 3988 10137 4000 10062 3979 10047 $$ JN
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 7:02 PM CDT | Tornado Warning | GLD | Gove | 31 min |
| May 24, 7:14 PM CDT | Special Weather Statement | GLD | Graham | 31 min |
| May 24, 7:20 PM CDT | Tornado Warning | GLD | Gove | 25 min |
| May 24, 7:30 PM CDT | Special Weather Statement | GLD | Norton | 15 min |
| May 24, 10:57 PM CDT | Dense Fog Advisory | GLD | Cheyenne, Decatur, Gove, Graham, Greeley, Logan and 7 more | 7 hr |
| May 25, 3:06 AM CDT | Special Weather Statement | GLD | Sherman | 54 min |
| May 25, 3:15 AM CDT | Special Weather Statement | GLD | Rawlins | 45 min |
| May 25, 3:38 AM CDT | Special Weather Statement | GLD | Cheyenne, Decatur, Rawlins | 82 min |
| May 25, 4:51 AM CDT | Special Weather Statement | GLD | Decatur, Norton, Rawlins | 54 min |
| May 25, 5:54 AM CDT | Areal Flood Warning | GLD | Decatur, Rawlins | 93 min |
| May 25, 6:04 AM CDT | Special Weather Statement | GLD | Norton | 56 min |
| May 25, 6:34 AM CDT | Special Weather Statement | GLD | Graham | 26 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.