Alert archive / Colorado / Flash Flood Warnings in 2020
Flash Flood Warning 64, NWS Pueblo, CO
NWS Pueblo, CO issued this flash flood warning at Aug 25, 2020, 5:53 PM MDT for Custer County, Fremont 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
- Aug 25, 2020, 5:53 PM MDT (23:53 UTC)
- Expired
- Aug 25, 2020, 9:00 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), 96 km from the middle of the area, began a volume at 23:54 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.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 11.9 hours before the alert went out and 250 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
- 41 J/kg
- Mixed-layer CIN
- -348 J/kg
- Mixed-layer LCL
- 3147 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
085
WGUS55 KPUB 252353
FFWPUB
COC027-043-260300-
/O.NEW.KPUB.FF.W.0064.200825T2353Z-200826T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
553 PM MDT Tue Aug 25 2020
The National Weather Service in Pueblo has issued a
* Flash Flood Warning for...
Southeastern Fremont County in central Colorado...
Northeastern Custer County in southeastern Colorado...
* Until 900 PM MDT.
* At 552 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to two inches of rain have
already fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flooding include...
Wetmore.
Additional rainfall amounts of one half inch to one inch are
possible in the warned area.
This includes the following areas, Hardscrabble Creek near County
Road 389.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3823 10537 3833 10536 3832 10508 3820 10508
FLASH FLOOD...RADAR INDICATED
$$
Rodriguez2 follow-up statements
898
WGUS75 KPUB 260056
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
656 PM MDT Tue Aug 25 2020
COC027-043-260300-
/O.CON.KPUB.FF.W.0064.000000T0000Z-200826T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fremont CO-Custer CO-
656 PM MDT Tue Aug 25 2020
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM MDT FOR
SOUTHEASTERN FREMONT AND NORTHEASTERN CUSTER COUNTIES...
At 655 PM MDT, Doppler radar indicated isolated thunderstorms
continuing to produce light to moderate rain across the warned area.
Up to around two inches of rain have already fallen. Flash flooding
is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other drainage
and low lying areas.
Some locations that will experience flooding include...
Wetmore.
This includes the following areas, Hardscrabble Creek near County
Road 389.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3823 10537 3833 10536 3832 10508 3820 10508
FLASH FLOOD...RADAR INDICATED
$$
Rodriguez904 WGUS75 KPUB 260251 FFSPUB Flash Flood Statement National Weather Service Pueblo CO 851 PM MDT Tue Aug 25 2020 COC027-043-260300- /O.EXP.KPUB.FF.W.0064.000000T0000Z-200826T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Fremont CO-Custer CO- 851 PM MDT Tue Aug 25 2020 ...THE FLASH FLOOD WARNING FOR SOUTHEASTERN FREMONT AND NORTHEASTERN CUSTER COUNTIES WILL EXPIRE AT 900 PM MDT... The heavy rain has ended. Flood waters are receding or have receded. Flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. LAT...LON 3823 10537 3833 10536 3832 10508 3820 10508 $$ Rodriguez
The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 5:48 PM MDT | Special Weather Statement | PUB | Fremont | 42 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.