Alert archive / Colorado / Flash Flood Warnings in 2021
Flash Flood Warning 9, NWS Goodland, KS
NWS Goodland, KS issued this flash flood warning at May 16, 2021, 5:46 PM MDT for Kit Carson County, Colorado. 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
- May 16, 2021, 5:46 PM MDT (23:46 UTC)
- Expired
- May 16, 2021, 9:00 PM MDT
- In force
- 3 hr
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Flood severity
- None
County Kit Carson County, CO
The radar
The Goodland radar (KGLD), 77 km from the middle of the area, began a volume at 23:46 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 12:00Z, 11.8 hours before the alert went out and 80 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
- 215 J/kg
- Mixed-layer CIN
- -294 J/kg
- Mixed-layer LCL
- 861 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- -44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
515
WGUS53 KGLD 162346
FFWGLD
COC063-170300-
/O.NEW.KGLD.FF.W.0009.210516T2346Z-210517T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Goodland KS
546 PM MDT Sun May 16 2021
The National Weather Service in Goodland has issued a
* Flash Flood Warning for...
Central Kit Carson County in east central Colorado...
* Until 900 PM MDT.
* At 546 PM MDT, the public reported thunderstorms producing heavy
rain across the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Public.
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...
Stratton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3940 10268 3921 10268 3922 10244 3942 10247
3940 10259
FLASH FLOOD...OBSERVED
$$
JN2 follow-up statements
152
WGUS73 KGLD 170230
FFSGLD
Flash Flood Statement
National Weather Service Goodland KS
830 PM MDT Sun May 16 2021
COC063-170300-
/O.CON.KGLD.FF.W.0009.000000T0000Z-210517T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kit Carson CO-
830 PM MDT Sun May 16 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR CENTRAL KIT CARSON COUNTY...
At 829 PM MDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
Some locations that will experience flash flooding include...
Stratton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3940 10268 3921 10268 3922 10244 3942 10247
3940 10259
FLASH FLOOD...RADAR INDICATED
$$
ANW134
WGUS73 KGLD 170255
FFSGLD
Flash Flood Statement
National Weather Service Goodland KS
855 PM MDT Sun May 16 2021
COC063-170305-
/O.EXP.KGLD.FF.W.0009.000000T0000Z-210517T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kit Carson CO-
855 PM MDT Sun May 16 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR
CENTRAL KIT CARSON COUNTY...
Flooding remains a threat across the area. A Flash Flood Warning
remains in effect for Central and Eastern Kit Carson County until
1130 PM MDT. Please continue to heed any road closures.
LAT...LON 3940 10268 3921 10268 3922 10244 3942 10247
3940 10259
$$
ANWThe office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 9:28 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 12 min |
| May 15, 9:43 PM MDT | Special Weather Statement | GLD | Cheyenne | 62 min |
| May 15, 10:05 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 20 min |
| May 15, 10:39 PM MDT | Special Weather Statement | GLD | Kit Carson | 51 min |
| May 16, 4:41 PM MDT | Special Weather Statement | GLD | Cheyenne | 64 min |
| May 16, 5:15 PM MDT | Special Weather Statement | GLD | Kit Carson | 30 min |
| May 16, 5:21 PM MDT | Tornado Warning | GLD | Cheyenne | 24 min |
| May 16, 5:25 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 35 min |
| May 16, 5:30 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 45 min |
| May 16, 5:44 PM MDT | Special Weather Statement | GLD | Kit Carson | 61 min |
| May 16, 5:58 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 62 min |
Nearby
Flash Flood Warnings in Colorado, 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.