Alert archive / Colorado / Flash Flood Warnings in 2020
Flash Flood Warning 40, NWS Pueblo, CO
NWS Pueblo, CO issued this flash flood warning at Jul 26, 2020, 4:54 PM MDT for Chaffee County, Fremont County, Saguache County, Colorado. It was in force for 5 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 26, 2020, 4:54 PM MDT (22:54 UTC)
- Expired
- Jul 26, 2020, 10:15 PM MDT
- In force
- 5 hr
- Issued by
- NWS Pueblo, CO
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
Counties Chaffee County, CO, Fremont County, CO, Saguache County, CO
The radar
The Pueblo radar (KPUX), 155 km from the middle of the area, began a volume at 22:54 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 26, 7:00 PM MDT | FLASH FLOOD | 2 Nw Swissvale, CO | COUNTY HIGHWAY 101 IS WASHED OUT NEAR JUNCTION OF HIGHWAY 50. |
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 12:00Z, 10.9 hours before the alert went out and 232 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1802 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
864
WGUS55 KPUB 262254
FFWPUB
COC015-043-109-270045-
/O.NEW.KPUB.FF.W.0040.200726T2254Z-200727T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
454 PM MDT Sun Jul 26 2020
The National Weather Service in Pueblo has issued a
* Flash Flood Warning for...
Southeastern Chaffee County in central Colorado...
West central Fremont County in central Colorado...
North central Saguache County in central Colorado...
* Until 645 PM MDT.
* At 451 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain across the eastern half the Decker Burn Scar. Around
one half inch of rain has already fallen. Flash flooding is
ongoing or expected to begin shortly.
HAZARD...Life threatening flash flooding. Heavy rain producing
flash flooding.
SOURCE...Radar indicated.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flooding include...
Decker Burn Scar.
Excessive rainfall over the burn scar may result in debris flow
moving through the Bear Creek. The debris flow can consist of rock,
mud, vegetation and other loose materials.
This includes the following areas, County Road 49 and Bear Creek and
County Road 101 and Bear Creek to Highway 50.
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 3850 10593 3838 10596 3840 10602 3851 10598
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...0.50-1 INCHES IN 1 HOUR
$$
PGW4 follow-up statements
548
WGUS75 KPUB 262343
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
543 PM MDT Sun Jul 26 2020
COC015-043-109-270045-
/O.CON.KPUB.FF.W.0040.000000T0000Z-200727T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Chaffee CO-Fremont CO-Saguache CO-
543 PM MDT Sun Jul 26 2020
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM MDT FOR
SOUTHEASTERN CHAFFEE...WEST CENTRAL FREMONT AND NORTH CENTRAL
SAGUACHE COUNTIES...
This flash flood warning which remains in effect is for the eastern
half of the Decker Burn Scar. At 539 PM MDT, Doppler radar
indicated thunderstorms producing heavy rain across the warned area.
Around one half inch of rain has already fallen. Flash flooding is
ongoing or expected to begin shortly.
HAZARD...Life threatening flash flooding. Heavy rain producing flash
flooding.
SOURCE...Radar indicated.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
The thunderstorm producing heavy rain has redeveloped over the
eastern half of the Decker Burn Scar.
Excessive rainfall over the burn scar may result in debris flow
moving through the Rock Creek and Bear Creek drainage. The debris
flow can consist of rock, mud, vegetation and other loose materials.
Some locations that will experience flooding include...
Decker Burn Scar.
This includes the following streams and drainages...
Rock Creek and Bear Creek.
This includes the following areas, County Road 49 and Bear Creek and
County Road 101 and Bear Creek to Highway 50.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for flooding even in locations not receiving rain.
Arroyos, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.
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 3850 10593 3838 10596 3840 10602 3851 10598
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...0.50-1 INCHES IN 1 HOUR
$$
PGW084
WGUS55 KPUB 270039
FFWPUB
COC015-043-109-270145-
/O.EXT.KPUB.FF.W.0040.000000T0000Z-200727T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
639 PM MDT Sun Jul 26 2020
The National Weather Service in Pueblo has extended the
* Flash Flood Warning for...
Southeastern Chaffee County in central Colorado...
West central Fremont County in central Colorado...
North central Saguache County in central Colorado...
* Until 745 PM MDT.
* The flash flood warning for the eastern portion of the Decker Burn
Scar has been extended. At 634 PM MDT, Doppler radar indicated
thunderstorms which was producing heavy rains have weakened. Up
to one and a half inches of rain has already fallen. Flash
flooding is already occurring, and it will continue until 745 PM.
HAZARD...Life threatening flash flooding. Heavy rain producing
flash flooding.
SOURCE...Radar indicated.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flooding include...
Decker Burn Scar.
Excessive rainfall over the burn scar may result in debris flow
moving through the Rock Creek and Bear Creek drainages. The debris
flow can consist of rock, mud, vegetation and other loose materials.
This includes the following streams and drainages...
Rock Creek and Bear Creek.
This includes the following areas, County Road 49 and Bear Creek and
County Road 101 and Bear Creek to Highway 50.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for flooding even in locations not receiving rain.
Arroyos, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.
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 3850 10593 3838 10596 3840 10602 3851 10598
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...0.20 INCHES IN 1 HOUR
$$
PGW534
WGUS55 KPUB 270109
FFWPUB
COC015-043-109-270415-
/O.EXT.KPUB.FF.W.0040.000000T0000Z-200727T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
709 PM MDT Sun Jul 26 2020
The National Weather Service in Pueblo has extended the
* Flash Flood Warning for...
Southeastern Chaffee County in central Colorado...
West central Fremont County in central Colorado...
North central Saguache County in central Colorado...
* Until 1015 PM MDT.
* At 701 PM MDT, law enforcement reported flash flooding on Bear
Creek. Up to two inches of rain have already fallen. Flash
flooding is occurring. County Road 101 is washed out near US 50.
Dangerous runoff and debris flows will continue for the next few
hours. The thunderstorms which produced the heavy rain has moved
away from the Decker Burn Scar and light rain is continuing.
HAZARD...Life threatening flash flooding. Heavy rain producing
flash flooding.
SOURCE...Law enforcement.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flooding include...
Decker Burn Scar.
Excessive rainfall over the burn scar will result in debris flow
moving through the Bear Creek and Rock Creek drainages. The debris
flow can consist of rock, mud, vegetation and other loose materials.
This includes the following streams and drainages... Rock Creek and
Bear Creek.
This includes the following areas, County Road 49 and Bear Creek and
County Road 101 and Bear Creek to Highway 50.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for flooding even in locations not receiving rain.
Arroyos, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.
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 3850 10593 3838 10596 3840 10602 3851 10598
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...0.20 INCHES IN 1 HOUR.
$$
PGW773 WGUS75 KPUB 270410 FFSPUB Flash Flood Statement National Weather Service Pueblo CO 1010 PM MDT Sun Jul 26 2020 COC015-043-109-270420- /O.EXP.KPUB.FF.W.0040.000000T0000Z-200727T0415Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Chaffee CO-Fremont CO-Saguache CO- 1010 PM MDT Sun Jul 26 2020 ...THE FLASH FLOOD WARNING FOR SOUTHEASTERN CHAFFEE...WEST CENTRAL FREMONT AND NORTH CENTRAL SAGUACHE COUNTIES WILL EXPIRE AT 1015 PM MDT... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. LAT...LON 3850 10593 3838 10596 3840 10602 3851 10598 $$ KTS
The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 1:36 PM MDT | Special Weather Statement | PUB | 39 min | |
| Jul 26, 1:52 PM MDT | Flash Flood Warning | PUB | Las Animas | 2 hr |
| Jul 26, 2:30 PM MDT | Special Weather Statement | PUB | Costilla | 15 min |
| Jul 26, 3:07 PM MDT | Flash Flood Warning | PUB | Huerfano | 113 min |
| Jul 26, 3:25 PM MDT | Special Weather Statement | PUB | Huerfano | 20 min |
| Jul 26, 3:32 PM MDT | Flash Flood Warning | PUB | Huerfano | 113 min |
| Jul 26, 3:42 PM MDT | Flash Flood Warning | PUB | Las Animas | 108 min |
| Jul 26, 4:19 PM MDT | Special Weather Statement | PUB | Prowers | 26 min |
Nearby
Flash Flood Warnings in Colorado, 2020Every flash flood warning in 2020
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.