Alert archive / Colorado / Flash Flood Warnings in 2021
Flash Flood Warning 98, NWS Pueblo, CO
NWS Pueblo, CO issued this flash flood warning at Jul 31, 2021, 4:50 PM MDT for Custer County, Pueblo 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
- Jul 31, 2021, 4:50 PM MDT (22:50 UTC)
- Expired
- Jul 31, 2021, 8:00 PM MDT
- In force
- 3 hr
- Issued by
- NWS Pueblo, CO
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
Counties Custer County, CO, Pueblo County, CO
The radar
The Pueblo radar (KPUX), 90 km from the middle of the area, began a volume at 22:50 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, 10.8 hours before the alert went out and 253 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
- 44 J/kg
- Mixed-layer CIN
- -277 J/kg
- Mixed-layer LCL
- 1127 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -71 m²/s²
- 0-3 km storm-relative helicity
- -21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
012
WGUS55 KPUB 312250
FFWPUB
COC027-101-010200-
/O.NEW.KPUB.FF.W.0098.210731T2250Z-210801T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
450 PM MDT Sat Jul 31 2021
The National Weather Service in Pueblo has issued a
* Flash Flood Warning for...
The Junkins Burn Scar in...
East Central Custer County in southeastern Colorado...
West Central Pueblo County in southeastern Colorado...
* Until 800 PM MDT.
* At 450 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain over the Junkins Burn Scar. Between 1 and 2 inches of
rain have fallen. The expected rainfall rate is 0.25 to 0.5 inches
in 1 hour. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
Excessive rainfall over the warning area may cause mud slides near
steep terrain. The mud slide can consist of rock, mud, vegetation
and other loose materials.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding in and around the Junkins
Burn Scar.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of areas in and around
the Junkins Burn Scar.
* Some locations that will experience flash flooding include...
Junkins Burn Scar and Beulah
This includes the following high risk locations...
County Road 165 near Junkins Burn Scar, Forest Road 387 Bridge at
South Hardscrabble Creek, Northcreek Road county line to Red
Mountain Camp and Northcreek Road from Red Mountain Camp to Beulah.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a life threatening situation. Heavy rainfall may cause
extensive and severe flash flooding of creeks...streams...and
ditches in the Junkins Burn Scar. Severe debris flows can also be
anticipated across roads. Roads and driveways may be washed away in
places. If you encounter flood waters...climb to safety.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3816 10526 3819 10505 3820 10502 3811 10499
3810 10505 3807 10525
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...0.25-0.5 INCHES IN 1 HOUR
$$
Hodanish2 follow-up statements
321
WGUS75 KPUB 010052
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
652 PM MDT Sat Jul 31 2021
COC027-101-010200-
/O.CON.KPUB.FF.W.0098.000000T0000Z-210801T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Custer CO-Pueblo CO-
652 PM MDT Sat Jul 31 2021
...FLASH FLOOD WARNING FOR THE JUNKINS BURN SCAR REMAINS IN EFFECT
UNTIL 8 PM MDT THIS EVENING FOR EAST CENTRAL CUSTER AND WEST CENTRAL
PUEBLO COUNTIES...
At 652 PM MDT, Doppler radar indicated thunderstorms producing heavy
rain over the Junkins Burn Scar. Between 2 and 3 inches of rain have
fallen. The expected rainfall rate is 0.25 to 0.5 inches in 1 hour.
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area. Flash flooding is ongoing or expected to begin shortly.
Excessive rainfall over the warning area will cause mud slides near
steep terrain. The mud slide can consist of rock, mud, vegetation
and other loose materials.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding in and around the Junkins Burn Scar.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of areas in and around
the Junkins Burn Scar.
Some locations that will experience flash flooding include...
Junkins Burn Scar.
This includes the following high risk locations...
County Road 165 near Junkins Burn Scar, Forest Road 387 Bridge at
South Hardscrabble Creek, Northcreek Road county line to Red
Mountain Camp and Northcreek Road from Red Mountain Camp to Beulah.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a life threatening situation. Heavy rainfall will cause
extensive and severe flash flooding of creeks...streams...and
ditches in the Junkins Burn Scar. Severe debris flows can also be
anticipated across roads. Roads and driveways may be washed away in
places. If you encounter flood waters...climb to safety.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3816 10526 3819 10505 3820 10502 3811 10499
3810 10505 3807 10525
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...0.25-0.5 INCHES IN 1 HOUR
$$
KS125
WGUS75 KPUB 010150
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
750 PM MDT Sat Jul 31 2021
COC027-101-010200-
/O.EXP.KPUB.FF.W.0098.000000T0000Z-210801T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Custer CO-Pueblo CO-
750 PM MDT Sat Jul 31 2021
...FLASH FLOOD WARNING FOR THE JUNKINS BURN SCAR WILL EXPIRE AT 8 PM
MDT THIS EVENING FOR EAST CENTRAL CUSTER AND WEST CENTRAL PUEBLO
COUNTIES...
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.
A Flash Flood Watch remains in effect until 100 AM MDT for portions
of central Colorado, east central Colorado, south central Colorado
and southeast Colorado.
LAT...LON 3816 10526 3819 10505 3820 10502 3811 10499
3810 10505 3807 10525
$$
KSThe office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 6:13 PM MDT | Special Weather Statement | PUB | Douglas | 17 min |
| Jul 31, 12:57 PM MDT | Special Weather Statement | PUB | Costilla | 63 min |
| Jul 31, 1:12 PM MDT | Special Weather Statement | PUB | Custer | 33 min |
| Jul 31, 1:39 PM MDT | Flash Flood Warning | PUB | Fremont | 3 hr |
| Jul 31, 1:56 PM MDT | Special Weather Statement | PUB | Custer | 49 min |
| Jul 31, 1:59 PM MDT | Special Weather Statement | PUB | Chaffee | 46 min |
| Jul 31, 2:01 PM MDT | Special Weather Statement | PUB | Chaffee | 44 min |
| Jul 31, 2:12 PM MDT | River Flood Watch | PUB | Pueblo | 18 hr |
| Jul 31, 2:12 PM MDT | River Flood Watch | PUB | Pueblo | 15 hr |
| Jul 31, 2:12 PM MDT | River Flood Watch | PUB | Pueblo | 13 hr |
| Jul 31, 2:13 PM MDT | Special Weather Statement | PUB | Conejos | 32 min |
| Jul 31, 2:36 PM MDT | Flash Flood Warning | PUB | Chaffee | 3 hr |
| Jul 31, 2:38 PM MDT | Flash Flood Warning | PUB | Custer | 118 min |
| Jul 31, 2:48 PM MDT | Flash Flood Warning | PUB | Chaffee | 3 hr |
| Jul 31, 3:11 PM MDT | Special Weather Statement | PUB | Conejos | 34 min |
| Jul 31, 3:22 PM MDT | Special Weather Statement | PUB | Saguache | 38 min |
| Jul 31, 3:25 PM MDT | Special Weather Statement | PUB | Alamosa | 35 min |
| Jul 31, 3:30 PM MDT | Special Weather Statement | PUB | Rio Grande | 45 min |
| Jul 31, 3:39 PM MDT | Special Weather Statement | PUB | Las Animas | 36 min |
| Jul 31, 3:43 PM MDT | Special Weather Statement | PUB | Baca | 32 min |
| Jul 31, 3:56 PM MDT | Special Weather Statement | PUB | Huerfano | 49 min |
| Jul 31, 4:05 PM MDT | Special Weather Statement | PUB | El Paso | 25 min |
| Jul 31, 4:31 PM MDT | Flash Flood Warning | PUB | El Paso | 3 hr |
| Jul 31, 4:46 PM MDT | Flash Flood Warning | PUB | Huerfano | 4 hr |
| Jul 31, 4:59 PM MDT | Special Weather Statement | PUB | Baca | 31 min |
| Jul 31, 5:03 PM MDT | Flash Flood Warning | PUB | Custer, Huerfano, Pueblo | 3 hr |
| Jul 31, 5:13 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 4 hr |
| Jul 31, 5:28 PM MDT | Special Weather Statement | PUB | Baca | 32 min |
| Jul 31, 5:29 PM MDT | Special Weather Statement | PUB | Baca | 46 min |
| Jul 31, 5:35 PM MDT | Flash Flood Warning | PUB | El Paso | 3 hr |
| Jul 31, 5:43 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 3 hr |
| Jul 31, 5:45 PM MDT | Special Weather Statement | PUB | Baca | 30 min |
| Jul 31, 5:55 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 35 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.