Alert archive / Colorado / Flash Flood Warnings in 2021
Flash Flood Warning 125, NWS Pueblo, CO
NWS Pueblo, CO issued this flash flood warning at Aug 15, 2021, 3:08 PM MDT for Chaffee County, Colorado. 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
- Aug 15, 2021, 3:08 PM MDT (21:08 UTC)
- Expired
- Aug 15, 2021, 5:14 PM MDT
- In force
- 2 hr
- Issued by
- NWS Pueblo, CO
- Area
- Storm-based polygon
- Flood severity
- None
County Chaffee County, CO
The radar
The Grand Junction radar (KGJX), 175 km from the middle of the area, began a volume at 21:09 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
Grand Junction, CO (KGJT), launched 12:00Z, 9.1 hours before the alert went out and 201 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
- 15 J/kg
- Mixed-layer CIN
- -410 J/kg
- Mixed-layer LCL
- 3078 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
900
WGUS55 KPUB 152108
FFWPUB
COC015-160015-
/O.NEW.KPUB.FF.W.0125.210815T2108Z-210816T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
308 PM MDT Sun Aug 15 2021
The National Weather Service in Pueblo has issued a
* Flash Flood Warning for...
Central Chaffee County in central Colorado...
* Until 615 PM MDT.
* At 308 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain Chalk Cliff areas in Chaffee county. The heaviest rain
was falling just east of Alpine. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding in the Chalk Cliffs area in Chaffee
County.
* Some locations that will experience flash flooding include...
Alpine.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3875 10623 3875 10615 3870 10614 3860 10634
3872 10634
FLASH FLOOD...RADAR INDICATED
$$
Hodanish2 follow-up statements
321
WGUS75 KPUB 152207
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
407 PM MDT Sun Aug 15 2021
COC015-160015-
/O.CON.KPUB.FF.W.0125.000000T0000Z-210816T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Chaffee CO-
407 PM MDT Sun Aug 15 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 PM MDT THIS
EVENING FOR CENTRAL CHAFFEE COUNTY...
At 407 PM MDT, Doppler radar indicated rounds of thunderstorms
moving across the Chalk Cliffs area in Chaffee county. This activity
will have the potential to produce flash flooding.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, will be
possible in the mountains west of Buena Vista area.
Some locations that will experience flash flooding include...
Alpine.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3875 10623 3875 10615 3870 10614 3860 10634
3872 10634
FLASH FLOOD...RADAR INDICATED
$$
Hodanish794
WGUS75 KPUB 152314
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
514 PM MDT Sun Aug 15 2021
COC015-152324-
/O.CAN.KPUB.FF.W.0125.000000T0000Z-210816T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Chaffee CO-
514 PM MDT Sun Aug 15 2021
...FLASH FLOOD WARNING IS CANCELLED FOR CENTRAL CHAFFEE COUNTY...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
LAT...LON 3875 10623 3875 10615 3870 10614 3860 10634
3872 10634
$$
HodanishThe office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 7:15 PM MDT | Special Weather Statement | PUB | Saguache | 30 min |
| Aug 14, 7:41 PM MDT | Special Weather Statement | PUB | Saguache | 34 min |
| Aug 14, 9:37 PM MDT | Special Weather Statement | PUB | El Paso | 23 min |
| Aug 15, 2:01 AM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 3 hr |
| Aug 15, 1:05 PM MDT | Flash Flood Watch | PUB | Alamosa, Chaffee, Costilla, Custer, Fremont, Huerfano and 3 more | 7 hr |
| Aug 15, 1:50 PM MDT | Flash Flood Warning | PUB | Chaffee, Saguache | 2 hr |
| Aug 15, 2:24 PM MDT | Special Weather Statement | PUB | El Paso | 36 min |
| Aug 15, 2:58 PM MDT | Special Weather Statement | PUB | Custer | 32 min |
| Aug 15, 3:01 PM MDT | Special Weather Statement | PUB | Chaffee | 29 min |
| Aug 15, 4:16 PM MDT | Special Weather Statement | PUB | Crowley, Pueblo | 44 min |
| Aug 15, 4:38 PM MDT | Special Weather Statement | PUB | Huerfano | 52 min |
| Aug 15, 5:18 PM MDT | Special Weather Statement | PUB | Crowley | 27 min |
| Aug 15, 5:54 PM MDT | Special Weather Statement | PUB | Las Animas | 36 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.