Alert archive / Colorado / Flash Flood Watches in 2021

Flash Flood Watch 7, NWS Pueblo, CO

June 26, 202110 counties in Colorado

NWS Pueblo, CO issued this flash flood watch at Jun 26, 2021, 2:16 PM MDT for 10 counties in Colorado. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Jun 26, 2021, 2:16 PM MDT (20:16 UTC)
Expired
Jun 26, 2021, 11:16 PM MDT
In force
9 hr
Issued by
NWS Pueblo, CO
Flood severity
None

Counties Alamosa County, CO, Chaffee County, CO, Costilla County, CO, Custer County, CO, Fremont County, CO, Huerfano County, CO, Lake County, CO, Las Animas County, CO, Pueblo County, CO, Saguache County, CO

The radar

The Pueblo radar (KPUX), 118 km from the middle of the area, began a volume at 20:18 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, 8.3 hours before the alert went out and 277 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 2021-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2021-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -64 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1067 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-64 m²/s²
0-3 km storm-relative helicity
-69 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

825 
WGUS65 KPUB 262016
FFAPUB

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Pueblo CO
216 PM MDT Sat Jun 26 2021

.The potential for heavy rainfall could bring isolated flash 
flooding across the burn scars around the southeast Colorado 
mountains, as well as Cottonwood Creek and Chalk Creek areas west of 
Buena Vista, for this afternoon and evening. A Flash Flood Watch has 
been issued for the potential of isolated flash flooding, 
specifically in these areas.

COZ060>062-072>074-077-079-080-087-270300-
/O.NEW.KPUB.FF.A.0007.210626T2016Z-210627T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Eastern Sawatch Mountains Above 11000 Feet-Western Chaffee County
Between 9000 and 11000 Feet-Central Chaffee County Below 9000 Feet-
Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet-
Northern Sangre de Cristo Mountains Above 11000 Feet-Southern Sangre
de Cristo Mountains Between 7500 and 11000 Feet-Western/Central
Fremont County Below 8500 Feet-Wet Mountains between 6300 and
10000 Feet-Wet Mountains Above 10000 Feet-Walsenburg Vicinity/Upper
Huerfano River Basin Below 7500 Feet-
Including the cities of Weston, Buena Vista, Texas Creek, Cuchara, 
Salida, Howard, Hillside, Walsenburg, Rye, Cotopaxi, Blanca Peak, La 
Veta Pass, Poncha Pass, Swissvale, St Elmo, Bonanza, Stonewall, 
Coaldale, Granite, and Alpine
216 PM MDT Sat Jun 26 2021

...FLASH FLOOD WATCH IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR THE 
JUNKINS, DECKER, HAYDEN PASS, AND SPRING BURN SCARS, AS WELL AS 
COTTONWOOD CREEK AND CHALK CREEK AREAS WEST OF BUENA VISTA...

The National Weather Service in Pueblo has issued a

* Flash Flood Watch for the Junkins, Decker, Hayden Pass, and Spring 
  Burn Scars, as well as Cottonwood Creek and Chalk Creek areas west 
  of Buena Vista. This includes portions of the southeastern 
  Colorado mountains and vicinity.

* Until 9 PM MDT this evening.

* Showers and a few thunderstorms are expected to continue 
  developing through the remainder of this afternoon and continue 
  into this evening over the southeastern Colorado mountains and 
  vicinity. Localized rainfall totals of one-half to one inch, with 
  isolated amounts to near 1.5 inches, may accumulate through this 
  evening. This activity will bring the risk for flash flooding in 
  isolated locations across the burn scars of the southeast Colorado 
  mountains, as well as Cottonwood Creek and Chalk Creek areas west 
  of Buena Vista.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION.

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

Cohen
3 follow-up statements
988 
WGUS65 KPUB 270223
FFAPUB

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Pueblo CO
823 PM MDT Sat Jun 26 2021

.The potential for heavy rainfall continues through 9PM for the
Chalk Cliffs and the Decker Burn Scars. We have extended the Flash
Flood Watch for the Junkins and Spring Burn Scars until Midnight. 

COZ072>074-079-080-087-270600-
/O.EXT.KPUB.FF.A.0007.000000T0000Z-210627T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet-
Northern Sangre de Cristo Mountains Above 11000 Feet-
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Including the cities of La Veta Pass, Poncha Pass, Blanca Peak, 
Cuchara, Stonewall, Weston, Rye, and Walsenburg
823 PM MDT Sat Jun 26 2021

...FLASH FLOOD WATCH NOW IN EFFECT UNTIL MIDNIGHT MDT TONIGHT...

The Flash Flood Watch is now in effect for

* A portion of southeast Colorado, including the following 
  areas, Huerfano County, Northern Sangre de Cristo Mountains, 
  Southern Sangre de Cristo Mountains, and Wet Mountains. 

* Until midnight MDT tonight

* Showers and thunderstorms continue to develop near and around
  the Junkins and Spring Burn Scars, therefore the Flash Flood
  Watch has been extended over the zones associated with those two
  areas. Heavy rainfall is associated with these storms due to
  warm rain processes overhead.  



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

COZ060>062-077-270330-
/O.CON.KPUB.FF.A.0007.000000T0000Z-210627T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Eastern Sawatch Mountains Above 11000 Feet-
Western Chaffee County Between 9000 and 11000 Feet-
Central Chaffee County Below 9000 Feet-
Western/Central Fremont County Below 8500 Feet-
Including the cities of Bonanza, Alpine, Granite, St Elmo, 
Salida, Buena Vista, Coaldale, Cotopaxi, Hillside, Howard, 
Swissvale, and Texas Creek
823 PM MDT Sat Jun 26 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

The Flash Flood Watch continues for

* A portion of central Colorado, including the following areas, 
  Eastern Sawatch Range, Fremont County, and Upper Arkansas 
  River Valley. 

* Until 9 PM MDT this evening

* Showers and thunderstorms continue to develop over the central
  mountains. Warm rain processes are enhancing the rainfall rates
  being observed over the area and antecedent conditions from 
  rain yesterday and this morning increase the risk for flash 
  flooding. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
033 
WGUS65 KPUB 270251
FFAPUB

Flood Watch
National Weather Service Pueblo CO
851 PM MDT Sat Jun 26 2021

.The Flash Flood Watch will be allowed to expire over the Chalk
Cliffs, the Decker, and the Hayden Pass Burn Scars. A Flash Flood
Watch is still in effect for the Junkins and Spring Burn Scars. 

COZ060>062-077-270400-
/O.EXP.KPUB.FF.A.0007.000000T0000Z-210627T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Eastern Sawatch Mountains Above 11000 Feet-
Western Chaffee County Between 9000 and 11000 Feet-
Central Chaffee County Below 9000 Feet-
Western/Central Fremont County Below 8500 Feet-
Including the cities of Bonanza, Alpine, Granite, St Elmo, 
Salida, Buena Vista, Coaldale, Cotopaxi, Hillside, Howard, 
Swissvale, and Texas Creek
851 PM MDT Sat Jun 26 2021

...FLASH FLOOD WATCH WILL EXPIRE AT 9 PM MDT THIS EVENING...

The Flash Flood Watch for a portion of central Colorado will
expire at 9 PM MDT this evening. The heaviest rainfall rates have
transitioned further south. The Junkins and Spring Burns Scars
still have a Flash Flood Watch until midnight. 

$$

COZ072>074-079-080-087-270600-
/O.CON.KPUB.FF.A.0007.000000T0000Z-210627T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet-
Northern Sangre de Cristo Mountains Above 11000 Feet-
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Including the cities of La Veta Pass, Poncha Pass, Blanca Peak, 
Cuchara, Stonewall, Weston, Rye, and Walsenburg
851 PM MDT Sat Jun 26 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

The Flash Flood Watch continues for

* A portion of southeast Colorado, including the following 
  areas, Huerfano County, Northern Sangre de Cristo Mountains, 
  Southern Sangre de Cristo Mountains, and Wet Mountains. 

* Until midnight MDT tonight

* Showers and thunderstorms continue to develop near and around 
  the Junkins and Spring Burn Scars, therefore the Flash Flood 
  Watch has been extended over the zones associated with those 
  two areas. Heavy rainfall is associated with these storms due 
  to warm rain processes overhead. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
590 
WGUS65 KPUB 270516
FFAPUB

Flood Watch
National Weather Service Pueblo CO
1116 PM MDT Sat Jun 26 2021

...Flash Flood Watch for the Junkins and Spring Burn Scars has
been cancelled...

.The Flash Flood Watch for a portion of southeast Colorado has
been cancelled. Thunderstorm intensity has decreased over the Wet
Mountain Valley leading to low rainfall rates. Though there is
still ongoing light rain, flash flooding is not expected over the
burn scars.

COZ072>074-079-080-087-270630-
/O.CAN.KPUB.FF.A.0007.000000T0000Z-210627T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet-
Northern Sangre de Cristo Mountains Above 11000 Feet-
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Including the cities of La Veta Pass, Poncha Pass, Blanca Peak, 
Cuchara, Stonewall, Weston, Rye, and Walsenburg
1116 PM MDT Sat Jun 26 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of southeast Colorado has
been cancelled. Thunderstorm intensity has decreased over the Wet
Mountain Valley leading to low rainfall rates. Though there is
still ongoing light rain, flash flooding is not expected over the
burn scars. 

$$

Nearby

Flash Flood Watches in Colorado, 2021Every flash flood watch 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.