Alert archive / Colorado / Flash Flood Warnings in 2017
Flash Flood Warning 22, NWS Pueblo, CO
NWS Pueblo, CO issued this flash flood warning at Jul 15, 2017, 8:04 PM MDT for Custer County, Fremont County, Colorado. It was in force for 3 hr. 1 report 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 15, 2017, 8:04 PM MDT (02:04 UTC)
- Expired
- Jul 15, 2017, 11:00 PM MDT
- In force
- 3 hr
- Issued by
- NWS Pueblo, CO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Custer County, CO, Fremont County, CO
The radar
The Pueblo radar (KPUX), 138 km from the middle of the area, began a volume at 02:03 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 15, 10:00 PM MDT | FLASH FLOOD | 4 Sw Coaldale, CO | FLOOD WATERS OFF HAYDEN PASS BURN SCAR FLOODED CAMPGROUND. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Grand Junction, CO (KGJT), launched 00:00Z, 2.1 hours before the alert went out and 255 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
- 121 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 3542 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
760
WGUS55 KPUB 160204
FFWPUB
COC027-043-160500-
/O.NEW.KPUB.FF.W.0022.170716T0204Z-170716T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
804 PM MDT SAT JUL 15 2017
The National Weather Service in Pueblo has issued a
* Flash Flood Warning for...
Southwestern Fremont County in central Colorado...
Northwestern Custer County in southeastern Colorado...
* Until 1100 PM MDT
* At 801 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Flash flooding is expected to
begin shortly.
* Some locations that will experience flooding include...
Coaldale.
Excessive rainfall over the burn scar will result in debris flow
moving through the South Prong, Wolf Creek, Hayden Creek and Middle
Creek drainages. The debris flow can consist of rock, mud,
vegetation and other loose materials. If development continues
farther east, then Cottonwood Creek, Little Cottonwood Creek and
Butter Creek may also experience flooding.
This includes the following streams and drainages...South
Prong Creek...Wolf Creek...and Hayden Pass Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move away from recently burned areas. Life-threatening flooding of
creeks, roads and normally dry arroyos is likely. The heavy rains
will likely trigger rockslides, mudslides and debris flows in steep
terrain, especially in and around these areas.
&&
LAT...LON 3834 10569 3826 10568 3825 10573 3827 10580
3828 10583 3832 10587 3837 10575
$$
KT2 follow-up statements
198
WGUS75 KPUB 160237
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
837 PM MDT SAT JUL 15 2017
COC027-043-160500-
/O.CON.KPUB.FF.W.0022.000000T0000Z-170716T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fremont CO-Custer CO-
837 PM MDT SAT JUL 15 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 PM MDT FOR
SOUTHWESTERN FREMONT AND NORTHWESTERN CUSTER COUNTIES...
At 831 PM MDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Up to one inch of rain has already
fallen across South Prong, Middle Prong and the Hayden Creek
drainages. Additional heavy rain is falling on the upper reaches of
Wolf Creek. Additional thunderstorm development is occuring on the
eastern side of the burn scar. Movement of these storms was to the
southeast at 10 mph. Flash flooding is expected to continue.
Excessive rainfall over the burn scar will result in debris flow.
The debris flow can consist of rock, mud, vegetation and other loose
materials.
Some locations that will experience flooding include...
Hayden Pass Burn scar and Coaldale.
This includes the following streams and drainages...Little Cottonwood
Creek...Texas Creek...South Lake Creek...Arkansas River...Middle
Prong Hayden Creek...Big Cottonwood Creek...Hayden Pass Creek...Short
Creek...Sullivan Creek and Oak Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Move away from recently burned areas. Life-threatening flooding of
creeks, roads and normally dry arroyos is likely. The heavy rains
will likely trigger rockslides, mudslides and debris flows in steep
terrain, especially in and around these areas.
&&
LAT...LON 3834 10569 3826 10568 3825 10573 3827 10580
3828 10583 3832 10587 3837 10575
$$
KT947
WGUS75 KPUB 160308
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
908 PM MDT SAT JUL 15 2017
COC027-043-160500-
/O.CON.KPUB.FF.W.0022.000000T0000Z-170716T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fremont CO-Custer CO-
908 PM MDT SAT JUL 15 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 PM MDT FOR
SOUTHWESTERN FREMONT AND NORTHWESTERN CUSTER COUNTIES...
At 903 PM MDT, Doppler radar indicated that the thunderstorms which
produced heavy rain across the Hayden Pass burn scar have moved
south of the region. Up to one inch of rain fell on the Northwest
side of the burn scar in the South Prong, Middle Prong, Wolf Creek
and Hayden Creek drainages. Another area of heavy rain fell on the
southeast side of the burn scar in the Oak Creek drainage. Flash
flooding is expected to continue until the water has a chance to
recede.
Excessive rainfall over the burn scar will result in debris flow
moving through the South Prong, Middle Prong, Wolf Creek and Hayden
Creek drainages as well as the Oak Creek drainage. The debris flow
can consist of rock, mud, vegetation and other loose materials.
Some locations that will experience flooding include...
Coaldale.
This includes the following streams and drainages...South
Prong...Middle Prong...Wolf Creek...Oak Creek and Hayden Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Move away from recently burned areas. Life-threatening flooding of
creeks, roads and normally dry arroyos is likely. The heavy rains
will likely trigger rockslides, mudslides and debris flows in steep
terrain, especially in and around these areas.
&&
LAT...LON 3834 10569 3826 10568 3825 10573 3827 10580
3828 10583 3832 10587 3837 10575
$$
KTThe office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 6:08 PM MDT | Areal Flood Advisory | PUB | Bent, Crowley, Kiowa, Otero, Prowers | 3 hr |
| Jul 15, 6:08 PM MDT | Special Weather Statement | PUB | Chaffee | 37 min |
| Jul 15, 6:35 PM MDT | Special Weather Statement | PUB | Prowers | 40 min |
| Jul 15, 6:39 PM MDT | Areal Flood Advisory | PUB | Chaffee | 111 min |
| Jul 15, 6:39 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Prowers | 18 min |
| Jul 15, 6:43 PM MDT | Severe Thunderstorm Warning | PUB | Chaffee, Fremont | 32 min |
| Jul 15, 7:00 PM MDT | Special Weather Statement | PUB | Prowers | 30 min |
| Jul 15, 7:15 PM MDT | Special Weather Statement | PUB | Chaffee | 45 min |
| Jul 15, 7:19 PM MDT | Areal Flood Advisory | PUB | Chaffee | 116 min |
| Jul 15, 7:38 PM MDT | Areal Flood Advisory | PUB | Mineral, Rio Grande | 112 min |
| Jul 15, 7:53 PM MDT | Flash Flood Warning | PUB | Chaffee | 112 min |
| Jul 15, 8:17 PM MDT | Special Weather Statement | PUB | Saguache | 28 min |
| Jul 15, 10:48 PM MDT | Flash Flood Warning | PUB | Custer, Fremont | 3 hr |
| Jul 16, 12:34 PM MDT | Flash Flood Warning | PUB | Chaffee | 116 min |
| Jul 16, 1:18 PM MDT | Areal Flood Advisory | PUB | Chaffee | 117 min |
| Jul 16, 2:27 PM MDT | Areal Flood Advisory | PUB | Chaffee | 3 hr |
| Jul 16, 2:41 PM MDT | Flash Flood Warning | PUB | Custer, Fremont | 4 hr |
| Jul 16, 3:03 PM MDT | Severe Thunderstorm Warning | PUB | Fremont | 21 min |
| Jul 16, 3:17 PM MDT | Areal Flood Advisory | PUB | Chaffee | 3 hr |
| Jul 16, 3:18 PM MDT | Special Weather Statement | PUB | 42 min | |
| Jul 16, 3:28 PM MDT | Special Weather Statement | PUB | Saguache | 32 min |
| Jul 16, 3:39 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas | 66 min |
| Jul 16, 3:47 PM MDT | Severe Thunderstorm Warning | PUB | Custer, Saguache | 43 min |
| Jul 16, 3:59 PM MDT | Severe Thunderstorm Warning | PUB | Mineral, Rio Grande, Saguache | 31 min |
| Jul 16, 4:12 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Las Animas | 33 min |
| Jul 16, 4:35 PM MDT | Special Weather Statement | PUB | Rio Grande | 40 min |
| Jul 16, 4:45 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Las Animas | 30 min |
| Jul 16, 5:45 PM MDT | Special Weather Statement | PUB | Alamosa | 45 min |
| Jul 16, 5:51 PM MDT | Special Weather Statement | PUB | Custer | 39 min |
| Jul 16, 5:57 PM MDT | Flash Flood Warning | PUB | Custer, Pueblo | 3 hr |
Nearby
Flash Flood Warnings in Colorado, 2017Every flash flood warning in 2017
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.