Alert archive / Colorado / Flash Flood Warnings in 2021
Flash Flood Warning 105, NWS Pueblo, CO
NWS Pueblo, CO issued this flash flood warning at Jul 31, 2021, 6:20 PM MDT for Huerfano County, Las Animas County, Colorado. It was in force for 3 hr. 2 reports 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 31, 2021, 6:20 PM MDT (00:20 UTC)
- Expired
- Jul 31, 2021, 9:30 PM MDT
- In force
- 3 hr
- Issued by
- NWS Pueblo, CO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Huerfano County, CO, Las Animas County, CO
The radar
The Pueblo radar (KPUX), 133 km from the middle of the area, began a volume at 00:19 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 31, 7:44 PM MDT | HEAVY RAIN 3.45 | 5 Nne Spanish Peaks, CO | |
| Jul 31, 8:56 PM MDT | FLASH FLOOD | 3 Sw Aguilar, CO | ROADS REPORTED WASHED OUT IN THE MAURICIO CANYON AREA. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Albuquerq/Krtlnd, NM (KABQ), launched 00:00Z, 0.3 hours before the alert went out and 303 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
- 402 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 2682 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
535
WGUS55 KPUB 010020
FFWPUB
COC055-071-010330-
/O.NEW.KPUB.FF.W.0105.210801T0020Z-210801T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
620 PM MDT Sat Jul 31 2021
The National Weather Service in Pueblo has issued a
* Flash Flood Warning for...
South Central Huerfano County in southeastern Colorado...
West Central Las Animas County in southeastern Colorado...
* Until 930 PM MDT.
* At 620 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2.5 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...
Eastern Spring Burn Scar south of Highway 160 in Huerfano county,
Aguilar, Gulnare and Spanish Peaks.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3739 10507 3747 10502 3751 10490 3741 10462
3737 10456 3725 10474 3734 10500
FLASH FLOOD...RADAR INDICATED
$$
KS1 follow-up statement
107
WGUS75 KPUB 010325
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
925 PM MDT Sat Jul 31 2021
COC055-071-010335-
/O.EXP.KPUB.FF.W.0105.000000T0000Z-210801T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Huerfano CO-Las Animas CO-
925 PM MDT Sat Jul 31 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 930 PM MDT THIS EVENING FOR
SOUTH CENTRAL HUERFANO AND WEST CENTRAL LAS ANIMAS COUNTIES...
Heavy rainfall has ended, and flood waters are receding. Flooding is
no longer expected to pose a substantial threat. However, ponding of
water on roadways may still persist into the early overnight hours.
Please continue to heed remaining road closures.
A Flash Flood Watch remains in effect until 100 AM MDT for portions
of central Colorado, east central Colorado, south central Colorado
and southeast Colorado.
LAT...LON 3739 10507 3747 10502 3751 10490 3741 10462
3737 10456 3725 10474 3734 10500
$$
CohenThe office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 6:00 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 3 hr |
| Jul 31, 6:02 PM MDT | Special Weather Statement | PUB | Huerfano | 28 min |
| Jul 31, 6:11 PM MDT | Flash Flood Warning | PUB | Custer, Fremont, Huerfano, Pueblo | 2 hr |
| Jul 31, 6:12 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 33 min |
| Jul 31, 6:20 PM MDT | Special Weather Statement | PUB | Baca | 40 min |
| Jul 31, 6:21 PM MDT | Flash Flood Warning | PUB | Baca | 3 hr |
| Jul 31, 6:27 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Las Animas | 33 min |
| Jul 31, 6:29 PM MDT | Special Weather Statement | PUB | Baca | 31 min |
| Jul 31, 6:37 PM MDT | Special Weather Statement | PUB | Huerfano | 38 min |
| Jul 31, 6:39 PM MDT | Special Weather Statement | PUB | Las Animas | 36 min |
| Jul 31, 6:52 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Las Animas | 22 min |
| Jul 31, 7:01 PM MDT | Special Weather Statement | PUB | Baca | 44 min |
| Jul 31, 7:05 PM MDT | Special Weather Statement | PUB | 40 min | |
| Jul 31, 7:10 PM MDT | Special Weather Statement | PUB | 35 min | |
| Jul 31, 7:13 PM MDT | Special Weather Statement | PUB | Las Animas | 32 min |
| Jul 31, 7:20 PM MDT | Special Weather Statement | PUB | Huerfano | 40 min |
| Jul 31, 7:29 PM MDT | Special Weather Statement | PUB | Huerfano | 61 min |
| Jul 31, 7:54 PM MDT | Special Weather Statement | PUB | Baca | 51 min |
| Jul 31, 8:28 PM MDT | Flash Flood Warning | PUB | Las Animas | 3 hr |
| Jul 31, 8:28 PM MDT | Special Weather Statement | PUB | Las Animas, Pueblo | 47 min |
| Jul 31, 8:50 PM MDT | Special Weather Statement | PUB | Baca | 40 min |
| Jul 31, 10:11 PM MDT | Special Weather Statement | PUB | Pueblo | 49 min |
| Jul 31, 10:45 PM MDT | Flash Flood Warning | PUB | Pueblo | 4 hr |
| Jul 31, 11:24 PM MDT | Flash Flood Warning | PUB | Bent, Otero | 4 hr |
| Jul 31, 11:41 PM MDT | Flash Flood Warning | PUB | Pueblo | 4 hr |
| Aug 1, 2:43 AM MDT | Flash Flood Warning | PUB | Pueblo | 3 hr |
| Aug 1, 3:04 AM MDT | Flash Flood Watch | PUB | Conejos, Mineral, Rio Grande, Saguache | 18 hr |
| Aug 1, 3:29 AM MDT | River Flood Watch | PUB | Pueblo | 94 min |
| Aug 1, 3:30 AM MDT | River Flood Watch | PUB | Pueblo | 4 hr |
| Aug 1, 5:00 AM MDT | River Flood Warning | PUB | Pueblo | 26 hr |
| Aug 1, 5:44 AM MDT | Areal Flood Warning | PUB | Pueblo | 3 hr |
| Aug 1, 7:20 AM MDT | River Flood Watch | PUB | Otero | 14 hr |
| Aug 1, 2:47 PM MDT | Flash Flood Watch | PUB | Alamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 7 more | 32 hr |
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.