Alert archive / Colorado / Flash Flood Warnings in 2021

Flash Flood Warning 120, NWS Pueblo, CO

August 3, 2021Las Animas County, Otero County, Pueblo County, Colorado

NWS Pueblo, CO issued this flash flood warning at Aug 3, 2021, 7:06 PM MDT for Las Animas County, Otero County, Pueblo 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 3, 2021, 7:06 PM MDT (01:06 UTC)
Expired
Aug 3, 2021, 9:38 PM MDT
In force
3 hr
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Flood severity
None

Counties Las Animas County, CO, Otero County, CO, Pueblo County, CO

The radar

The Pueblo radar (KPUX), 86 km from the middle of the area, began a volume at 01:07 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 00:00Z, 1.1 hours before the alert went out and 249 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 00:00Z on 2021-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 00:00Z on 2021-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
2009 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

458 
WGUS55 KPUB 040106
FFWPUB
COC071-089-101-040415-
/O.NEW.KPUB.FF.W.0120.210804T0106Z-210804T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
706 PM MDT Tue Aug 3 2021

The National Weather Service in Pueblo has issued a

* Flash Flood Warning for...
  Northern Las Animas County in southeastern Colorado...
  Southwestern Otero County in southeastern Colorado...
  Southeastern Pueblo County in southeastern Colorado...

* Until 1015 PM MDT.

* At 706 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 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...
  Delhi.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3781 10412 3786 10398 3785 10390 3772 10384
      3760 10380 3757 10383 3756 10389 3760 10401
      3767 10409

FLASH FLOOD...RADAR INDICATED

$$

KS/CS
2 follow-up statements
275 
WGUS75 KPUB 040213 RRA
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
813 PM MDT Tue Aug 3 2021

COC071-089-101-040415-
/O.CON.KPUB.FF.W.0120.000000T0000Z-210804T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Las Animas CO-Otero CO-Pueblo CO-
813 PM MDT Tue Aug 3 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM MDT THIS 
EVENING FOR NORTHERN LAS ANIMAS, SOUTHWESTERN OTERO AND SOUTHEASTERN 
PUEBLO COUNTIES...

At 813 PM MDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2 and 3 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...
  Delhi.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3781 10412 3786 10398 3785 10390 3772 10384
      3760 10380 3757 10383 3756 10389 3760 10401
      3767 10409

FLASH FLOOD...RADAR INDICATED

$$

KS
155 
WGUS75 KPUB 040338
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
938 PM MDT Tue Aug 3 2021

COC071-089-101-040348-
/O.CAN.KPUB.FF.W.0120.000000T0000Z-210804T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Las Animas CO-Otero CO-Pueblo CO-
938 PM MDT Tue Aug 3 2021

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHERN LAS ANIMAS, 
SOUTHWESTERN OTERO AND SOUTHEASTERN PUEBLO COUNTIES...

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. Light rain is still in the vicinity.


LAT...LON 3781 10412 3786 10398 3785 10390 3772 10384
      3760 10380 3757 10383 3756 10389 3760 10401
      3767 10409

$$

CS/KS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 6:07 PM MDTSpecial Weather StatementPUBOtero38 min
Aug 3, 6:35 PM MDTSpecial Weather StatementPUBLas Animas40 min
Aug 3, 7:03 PM MDTFlash Flood WarningPUBBent3 hr
Aug 3, 8:12 PM MDTSpecial Weather StatementPUBProwers48 min
Aug 4, 1:20 PM MDTSpecial Weather StatementPUBBent40 min
Aug 4, 1:24 PM MDTSpecial Weather StatementPUBProwers51 min
Aug 4, 1:59 PM MDTFlash Flood WarningPUBBent3 hr
Aug 4, 2:19 PM MDTSpecial Weather StatementPUBProwers41 min
Aug 4, 3:08 PM MDTSpecial Weather StatementPUBProwers37 min
Aug 4, 3:31 PM MDTFlash Flood WarningPUBProwers119 min
Aug 4, 4:08 PM MDTSpecial Weather StatementPUBPueblo52 min
Aug 4, 4:20 PM MDTSpecial Weather StatementPUBBaca55 min
Aug 4, 4:53 PM MDTSpecial Weather StatementPUBProwers37 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.