Alert archive / Kansas / Flash Flood Warnings in 2021
Flash Flood Warning 26, NWS Goodland, KS
NWS Goodland, KS issued this flash flood warning at May 29, 2021, 9:19 PM CDT for Thomas 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
- May 29, 2021, 9:19 PM CDT (02:19 UTC)
- Expired
- May 29, 2021, 11:31 PM CDT
- In force
- 2 hr
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Flood severity
- None
County Thomas County, KS
The radar
The Goodland radar (KGLD), 38 km from the middle of the area, began a volume at 02:19 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
Denver, CO (KDNR), launched 00:00Z, 2.3 hours before the alert went out and 170 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
- 278 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 1446 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
423
WGUS53 KGLD 300219
FFWGLD
KSC193-300530-
/O.NEW.KGLD.FF.W.0026.210530T0219Z-210530T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Goodland KS
919 PM CDT Sat May 29 2021
The National Weather Service in Goodland has issued a
* Flash Flood Warning for...
Northwestern Thomas County in northwestern Kansas...
* Until 1230 AM CDT.
* At 918 PM 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...
Brewster and Levant.
This includes the following highways...
Interstate 70 in Kansas between mile markers 38 and 52.
Rural areas of northwest Thomas county will also be affected.
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 3935 10139 3957 10139 3957 10138 3957 10137
3957 10135 3957 10134 3957 10132 3957 10130
3957 10129 3957 10107 3935 10108 3935 10121
FLASH FLOOD...RADAR INDICATED
$$
MRC/JN1 follow-up statement
960
WGUS73 KGLD 300431
FFSGLD
Flash Flood Statement
National Weather Service Goodland KS
1131 PM CDT Sat May 29 2021
KSC193-300441-
/O.CAN.KGLD.FF.W.0026.000000T0000Z-210530T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Thomas KS-
1131 PM CDT Sat May 29 2021
...FLASH FLOOD WARNING IS CANCELLED FOR NORTHWESTERN THOMAS COUNTY...
The heavy rain has ended. Please continue to heed remaining road
closures.
LAT...LON 3935 10139 3957 10139 3957 10138 3957 10137
3957 10135 3957 10134 3957 10132 3957 10130
3957 10129 3957 10107 3935 10108 3935 10121
$$
024The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 7:02 PM CDT | Special Weather Statement | GLD | Cheyenne | 43 min |
| May 29, 7:32 PM CDT | Special Weather Statement | GLD | Cheyenne | 43 min |
| May 29, 8:09 PM CDT | Special Weather Statement | GLD | Cheyenne, Sherman | 36 min |
| May 29, 8:23 PM CDT | Flash Flood Warning | GLD | Cheyenne, Sherman | 2 hr |
| May 29, 8:51 PM CDT | Special Weather Statement | GLD | Thomas | 54 min |
| May 29, 9:43 PM CDT | Special Weather Statement | GLD | Thomas | 62 min |
| May 29, 9:51 PM CDT | Special Weather Statement | GLD | Cheyenne | 54 min |
| May 29, 10:27 PM CDT | Areal Flood Warning | GLD | Cheyenne, Sherman | 3 hr |
| May 29, 11:37 PM CDT | Areal Flood Warning | GLD | Thomas | 113 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.