Alert archive / Colorado / Flash Flood Warnings in 2021
Flash Flood Warning 32, NWS Goodland, KS
NWS Goodland, KS issued this flash flood warning at Jul 16, 2021, 6:23 PM MDT for Kit Carson County, Colorado. It was in force for 84 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 16, 2021, 6:23 PM MDT (00:23 UTC)
- Expired
- Jul 16, 2021, 7:47 PM MDT
- In force
- 84 min
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Flood severity
- None
County Kit Carson County, CO
The radar
The Goodland radar (KGLD), 63 km from the middle of the area, began a volume at 00:24 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 16, 7:00 PM MDT | FLASH FLOOD | Burlington, CO | REPORTS OF MINOR STREET FLOODING IN AND AROUND BURLINGTON. |
| Jul 16, 7:15 PM MDT | HEAVY RAIN 1.7 | Bethune, CO | STORM TOTAL PRECIPITATION OVER A DURATION OF APPROXIMATELY 3 HOURS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 0.4 hours before the alert went out and 96 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
- 12 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 3284 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- -9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
847
WGUS53 KGLD 170023
FFWGLD
COC063-170230-
/O.NEW.KGLD.FF.W.0032.210717T0023Z-210717T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Goodland KS
623 PM MDT Fri Jul 16 2021
The National Weather Service in Goodland has issued a
* Flash Flood Warning for...
Southeastern Kit Carson County in east central Colorado...
* Until 830 PM MDT.
* At 623 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...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...
Burlington and Bethune.
This includes the following highways...
Interstate 70 in Colorado between mile markers 422 and 440.
Highway 385 between mile markers 178 and 190.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3935 10258 3933 10222 3916 10218 3916 10257
FLASH FLOOD...RADAR INDICATED
$$
JN2 follow-up statements
088
WGUS73 KGLD 170100
FFSGLD
Flash Flood Statement
National Weather Service Goodland KS
700 PM MDT Fri Jul 16 2021
COC063-170230-
/O.CON.KGLD.FF.W.0032.000000T0000Z-210717T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kit Carson CO-
700 PM MDT Fri Jul 16 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM MDT THIS
EVENING FOR SOUTHEASTERN KIT CARSON COUNTY...
At 700 PM MDT, the public reported thunderstorms producing heavy
rain across the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Public reported minor street flooding in the city of
Burlington
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Burlington and Bethune.
This includes the following highways...
Interstate 70 in Colorado between mile markers 422 and 440.
Highway 385 between mile markers 178 and 190.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3935 10258 3933 10222 3916 10218 3916 10257
FLASH FLOOD...OBSERVED
$$
JN538 WGUS73 KGLD 170147 FFSGLD Flash Flood Statement National Weather Service Goodland KS 747 PM MDT Fri Jul 16 2021 COC063-170157- /O.CAN.KGLD.FF.W.0032.000000T0000Z-210717T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Kit Carson CO- 747 PM MDT Fri Jul 16 2021 ...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN KIT CARSON COUNTY... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. LAT...LON 3935 10258 3933 10222 3916 10218 3916 10257 $$ JN
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 6:19 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 33 min |
| Jul 16, 7:06 PM MDT | Special Weather Statement | GLD | Kit Carson | 54 min |
| Jul 16, 7:42 PM MDT | Special Weather Statement | GLD | Cheyenne | 48 min |
| Jul 16, 8:02 PM MDT | Special Weather Statement | GLD | Kit Carson | 58 min |
| Jul 16, 9:06 PM MDT | Special Weather Statement | GLD | Cheyenne | 24 min |
| Jul 16, 9:32 PM MDT | Special Weather Statement | GLD | Cheyenne | 28 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.