Alert archive / Colorado / Flash Flood Warnings in 2021

Flash Flood Warning 43, NWS Pueblo, CO

July 6, 2021Huerfano County, Colorado

NWS Pueblo, CO issued this flash flood warning at Jul 6, 2021, 4:20 PM MDT for Huerfano 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
Jul 6, 2021, 4:20 PM MDT (22:20 UTC)
Expired
Jul 6, 2021, 7:30 PM MDT
In force
3 hr
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

County Huerfano County, CO

The radar

The Pueblo radar (KPUX), 122 km from the middle of the area, began a volume at 22:20 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, 10.3 hours before the alert went out and 296 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.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 12:00Z on 2021-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2021-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -41 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1241 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-41 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

599 
WGUS55 KPUB 062220
FFWPUB
COC055-070130-
/O.NEW.KPUB.FF.W.0043.210706T2220Z-210707T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
420 PM MDT Tue Jul 6 2021

The National Weather Service in Pueblo has issued a

* Flash Flood Warning for...
  The Spring Burn Scar in...
  West Central Huerfano County in southeastern Colorado...

* Until 730 PM MDT.

* At 420 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain over the Spring Burn Scar. Flash flooding is ongoing or 
  expected to begin shortly.

Excessive rainfall over the warning area will cause mud slides near 
steep terrain. The mud slide can consist of rock, mud, vegetation 
and other loose materials.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding in and around the Spring Burn
           Scar.

  SOURCE...Radar.

  IMPACT...Life threatening flash flooding of areas in and around
           the Spring Burn Scar.

* Some locations that will experience flash flooding include...
  Spring Burn Scar north of Highway 160.

This includes the following high risk locations...
	Pass Creek Road.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a life threatening situation. Heavy rainfall will cause 
extensive and severe flash flooding of creeks...streams...and 
ditches in the Spring Burn Scar. Severe debris flows can also be 
anticipated across roads. Roads and driveways may be washed away in 
places. If you encounter flood waters...climb to safety.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3771 10525 3768 10495 3756 10500 3763 10523

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

PGW
2 follow-up statements
035 
WGUS75 KPUB 062305
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
505 PM MDT Tue Jul 6 2021

COC055-070130-
/O.CON.KPUB.FF.W.0043.000000T0000Z-210707T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Huerfano CO-
505 PM MDT Tue Jul 6 2021

...FLASH FLOOD WARNING FOR THE SPRING BURN SCAR REMAINS IN EFFECT 
UNTIL 730 PM MDT THIS EVENING FOR WEST CENTRAL HUERFANO COUNTY...

At 505 PM MDT, The thunderstorm, producing heavy rain, has moved 
east of the northern portion of the Spring Burn Scar.  Periods of 
light rain will continue until 530 PM.

Excessive rainfall over the warning area may cause mud slides near 
steep terrain. The mud slide can consist of rock, mud, vegetation 
and other loose materials.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding in and around the Spring Burn Scar.

SOURCE...Radar.

IMPACT...Life threatening flash flooding of areas in and around
         the Spring Burn Scar.

Some locations that will experience flash flooding include...
  Spring Burn Scar north of Highway 160.

This includes the following high risk locations...
	Pass Creek Road.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a life threatening situation. Heavy rainfall will cause 
extensive and severe flash flooding of creeks...streams...and 
ditches in the Spring Burn Scar. Severe debris flows can also be 
anticipated across roads. Roads and driveways may be washed away in 
places. If you encounter flood waters...climb to safety.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3771 10525 3768 10495 3756 10500 3763 10523

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

PGW
804 
WGUS75 KPUB 070126
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
726 PM MDT Tue Jul 6 2021

COC055-070136-
/O.EXP.KPUB.FF.W.0043.000000T0000Z-210707T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Huerfano CO-
726 PM MDT Tue Jul 6 2021

...FLASH FLOOD WARNING FOR THE SPRING BURN SCAR WILL EXPIRE AT 730 
PM MDT THIS EVENING FOR WEST CENTRAL HUERFANO COUNTY...

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 1100 PM MDT for portions 
of central Colorado and southeast Colorado.

LAT...LON 3771 10525 3768 10495 3756 10500 3763 10523

$$

MG

The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 6, 2:46 AM MDTFlash Flood WatchPUBAlamosa, Chaffee, Costilla, Custer, Fremont, Huerfano and 5 more22 hr
Jul 6, 12:23 PM MDTSpecial Weather StatementPUBOtero52 min
Jul 6, 12:39 PM MDTSpecial Weather StatementPUBKiowa36 min
Jul 6, 12:40 PM MDTSpecial Weather StatementPUBPueblo35 min
Jul 6, 1:11 PM MDTSpecial Weather StatementPUBKiowa34 min
Jul 6, 1:20 PM MDTSpecial Weather StatementPUBBent25 min
Jul 6, 1:21 PM MDTSpecial Weather StatementPUBBaca24 min
Jul 6, 1:34 PM MDTSpecial Weather StatementPUBTeller26 min
Jul 6, 1:43 PM MDTSevere Thunderstorm WarningPUBBent, Prowers32 min
Jul 6, 1:44 PM MDTSpecial Weather StatementPUBBent31 min
Jul 6, 1:49 PM MDTSevere Thunderstorm WarningPUBBent, Kiowa26 min
Jul 6, 1:50 PM MDTFlash Flood Warning Considerable damage threatPUBFremont, Saguache112 min
Jul 6, 1:54 PM MDTSpecial Weather StatementPUBLas Animas51 min
Jul 6, 1:57 PM MDTSpecial Weather StatementPUBBent48 min
Jul 6, 2:09 PM MDTSevere Thunderstorm WarningPUBBaca, Bent, Las Animas36 min
Jul 6, 2:11 PM MDTSevere Thunderstorm WarningPUBBent, Prowers34 min
Jul 6, 2:15 PM MDTSpecial Weather StatementPUBBent30 min
Jul 6, 2:17 PM MDTSpecial Weather StatementPUBProwers28 min
Jul 6, 2:28 PM MDTSpecial Weather StatementPUBOtero32 min
Jul 6, 2:29 PM MDTAreal Flood AdvisoryPUBTeller3 hr
Jul 6, 2:32 PM MDTSevere Thunderstorm WarningPUBProwers14 min
Jul 6, 2:42 PM MDTSevere Thunderstorm WarningPUBBaca, Bent, Prowers33 min
Jul 6, 2:48 PM MDTSpecial Weather StatementPUBLas Animas42 min
Jul 6, 2:49 PM MDTSpecial Weather StatementPUBBent26 min
Jul 6, 2:51 PM MDTSpecial Weather StatementPUBProwers24 min
Jul 6, 3:02 PM MDTSpecial Weather StatementPUBFremont28 min
Jul 6, 3:08 PM MDTSpecial Weather StatementPUBOtero37 min
Jul 6, 3:15 PM MDTSpecial Weather StatementPUBBaca45 min
Jul 6, 3:16 PM MDTSpecial Weather StatementPUBKiowa29 min
Jul 6, 3:29 PM MDTSpecial Weather StatementPUBFremont46 min
Jul 6, 3:30 PM MDTSpecial Weather StatementPUBLas Animas30 min
Jul 6, 3:38 PM MDTSpecial Weather StatementPUBOtero37 min
Jul 6, 3:50 PM MDTSevere Thunderstorm WarningPUBCuster, Fremont, Saguache25 min
Jul 6, 3:58 PM MDTSpecial Weather StatementPUBKiowa32 min
Jul 6, 4:05 PM MDTSpecial Weather StatementPUBBaca40 min
Jul 6, 4:09 PM MDTSpecial Weather StatementPUBFremont51 min
Jul 6, 4:11 PM MDTSpecial Weather StatementPUBLas Animas34 min
Jul 6, 4:28 PM MDTSpecial Weather StatementPUBKiowa47 min
Jul 6, 4:44 PM MDTSpecial Weather StatementPUBLas Animas46 min
Jul 6, 4:47 PM MDTFlash Flood Warning Considerable damage threatPUBHuerfano118 min
Jul 6, 4:51 PM MDTFlash Flood Warning Considerable damage threatPUBCuster, Pueblo3 hr
Jul 6, 4:52 PM MDTSevere Thunderstorm WarningPUBCostilla, Las Animas12 min
Jul 6, 4:54 PM MDTSpecial Weather StatementPUBCuster36 min
Jul 6, 5:27 PM MDTSevere Thunderstorm WarningPUBPueblo17 min
Jul 6, 5:35 PM MDTSpecial Weather StatementPUBHuerfano40 min
Jul 6, 5:37 PM MDTSpecial Weather StatementPUBBent38 min
Jul 6, 5:40 PM MDTSpecial Weather StatementPUBEl Paso35 min
Jul 6, 5:58 PM MDTFlash Flood WarningPUBEl Paso, Pueblo7 hr
Jul 6, 5:58 PM MDTSpecial Weather StatementPUBProwers32 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.