Alert archive / Colorado / Flash Flood Warnings in 2021
Flash Flood Warning 67, NWS Pueblo, CO
NWS Pueblo, CO issued this flash flood warning at Jul 23, 2021, 3:24 PM MDT for Saguache 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 23, 2021, 3:24 PM MDT (21:24 UTC)
- Expired
- Jul 23, 2021, 6:30 PM MDT
- In force
- 3 hr
- Issued by
- NWS Pueblo, CO
- Area
- Storm-based polygon
- Flood severity
- None
County Saguache County, CO
The radar
The Grand Junction radar (KGJX), 173 km from the middle of the area, began a volume at 21:27 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 23, 3:53 PM MDT | HEAVY RAIN 1.25 | Sargents, CO |
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, 9.4 hours before the alert went out and 199 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
- 21 J/kg
- Mixed-layer CIN
- -153 J/kg
- Mixed-layer LCL
- 1904 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -41 m²/s²
- 0-3 km storm-relative helicity
- -27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
563
WGUS55 KPUB 232124
FFWPUB
COC109-240030-
/O.NEW.KPUB.FF.W.0067.210723T2124Z-210724T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
324 PM MDT Fri Jul 23 2021
The National Weather Service in Pueblo has issued a
* Flash Flood Warning for...
Northwestern Saguache County in central Colorado...
* Until 630 PM MDT.
* At 324 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Sargents.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3842 10636 3838 10636 3838 10646 3842 10646
3842 10644 3842 10641 3842 10639 3842 10638
3842 10637
FLASH FLOOD...RADAR INDICATED
$$
Rodriguez3 follow-up statements
003
WGUS75 KPUB 232248
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
448 PM MDT Fri Jul 23 2021
COC109-240030-
/O.CON.KPUB.FF.W.0067.000000T0000Z-210724T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Saguache CO-
448 PM MDT Fri Jul 23 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM MDT THIS
EVENING FOR NORTHWESTERN SAGUACHE COUNTY...
At 448 PM MDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 1 and 2 inches of rain have
fallen. The expected rainfall rate is 0.25 to 0.5 inches in 1 hour.
Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Sargents.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3842 10636 3838 10636 3838 10646 3842 10646
3842 10644 3842 10641 3842 10639 3842 10638
3842 10637
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.25-0.5 INCHES IN 1 HOUR
$$
KS142
WGUS75 KPUB 232349
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
549 PM MDT Fri Jul 23 2021
COC109-240030-
/O.CON.KPUB.FF.W.0067.000000T0000Z-210724T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Saguache CO-
549 PM MDT Fri Jul 23 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM MDT THIS
EVENING FOR NORTHWESTERN SAGUACHE COUNTY...
At 549 PM MDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 1 and 2 inches of rain have
fallen. The expected rainfall rate is 1 to 1.5 inches in 1 hour.
Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Sargents.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3842 10636 3838 10636 3838 10646 3842 10646
3842 10644 3842 10641 3842 10639 3842 10638
3842 10637
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-1.5 INCHES IN 1 HOUR
$$
KS337
WGUS75 KPUB 240023
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
623 PM MDT Fri Jul 23 2021
COC109-240033-
/O.EXP.KPUB.FF.W.0067.000000T0000Z-210724T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Saguache CO-
623 PM MDT Fri Jul 23 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 630 PM MDT THIS EVENING FOR
NORTHWESTERN SAGUACHE COUNTY...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
A Flash Flood Watch remains in effect until 1200 AM MDT for portions
of central Colorado, south central Colorado and southeast Colorado.
LAT...LON 3842 10636 3838 10636 3838 10646 3842 10646
3842 10644 3842 10641 3842 10639 3842 10638
3842 10637
$$
KSThe office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 3:06 AM MDT | Flash Flood Watch | PUB | Alamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 5 more | 19 hr |
| Jul 23, 2:47 PM MDT | Special Weather Statement | PUB | Chaffee | 43 min |
| Jul 23, 3:34 PM MDT | Flash Flood Warning | PUB | Chaffee, Fremont, Saguache | 3 hr |
| Jul 23, 3:42 PM MDT | Special Weather Statement | PUB | Lake | 48 min |
| Jul 23, 4:53 PM MDT | Flash Flood Warning | PUB | Chaffee | 5 hr |
| Jul 23, 5:19 PM MDT | Flash Flood Warning | PUB | Saguache | 3 hr |
| Jul 23, 5:27 PM MDT | Special Weather Statement | PUB | Saguache | 48 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.