Alert archive / Colorado / Flash Flood Warnings in 2021

Flash Flood Warning 12, NWS Pueblo, CO

May 22, 2021Las Animas County, Colorado

NWS Pueblo, CO issued this flash flood warning at May 22, 2021, 7:30 PM MDT for Las Animas County, Colorado. It was in force for 91 min. 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: May 22, 2021, 7:30 PM MDT (01:30 UTC)
Expired: May 22, 2021, 9:01 PM MDT
In force: 91 min
Issued by: NWS Pueblo, CO
Area: Storm-based polygon
Flood severity: None

County Las Animas County, CO

The radar

The Pueblo radar (KPUX), 149 km from the middle of the area, began a volume at 01:31 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
May 22, 8:30 PM MDT	FLASH FLOOD	Trinidad, CO	NUMEROUS REPORTS OF FLOODING IN TRINIDAD WITH SEVERAL COUNTY ROADS WASHED OUT OR PARTIALLY WASHED OUT. PURGATOIRE RIVER REPORTED TO HAVE GONE OUT OF ITS BANKS IN A FEW PLACES ALONG HIGHWAY 12 WEST OF TRINIDAD THOUGH MIDNIGHT.

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, 1.5 hours before the alert went out and 300 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 169 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 3755 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 118 m²/s²
0-3 km storm-relative helicity: 125 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

192 
WGUS55 KPUB 230130
FFWPUB
COC071-230330-
/O.NEW.KPUB.FF.W.0012.210523T0130Z-210523T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
730 PM MDT Sat May 22 2021

The National Weather Service in Pueblo has issued a

* Flash Flood Warning for...
  South Central Las Animas County in southeastern Colorado...

* Until 930 PM MDT.

* At 730 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...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Trinidad and Starkville.

Additional rainfall amounts up to 0.5 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Excessive runoff from heavy rainfall will cause flooding of small 
creeks and streams, urban areas, highways, streets and underpasses 
as well as other drainage areas and low lying spots.

&&

LAT...LON 3721 10459 3701 10463 3700 10445 3711 10438
      3725 10437 3724 10449

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1 INCH IN 1 HOUR 

$$

KT

2 follow-up statements

961 
WGUS75 KPUB 230147
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
747 PM MDT Sat May 22 2021

COC071-230330-
/O.CON.KPUB.FF.W.0012.000000T0000Z-210523T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Las Animas CO-
747 PM MDT Sat May 22 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM MDT THIS 
EVENING FOR SOUTH CENTRAL LAS ANIMAS COUNTY...

At 747 PM MDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 1 and 3 inches of rain have 
fallen. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Doppler radar.

IMPACT...Flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other
         drainage and low lying areas.

Some locations that will experience flash flooding include...
  Trinidad and Starkville.

Additional rainfall amounts up to 0.5 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Excessive runoff from heavy rainfall will cause flooding of small 
creeks and streams, urban areas, highways, streets and underpasses 
as well as other drainage areas and low lying spots.

&&

LAT...LON 3721 10459 3701 10463 3700 10445 3711 10438
      3725 10437 3724 10449

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1 INCH IN 1 HOUR 

$$

Moore

454 
WGUS75 KPUB 230301
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
901 PM MDT Sat May 22 2021

COC071-230311-
/O.CAN.KPUB.FF.W.0012.000000T0000Z-210523T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Las Animas CO-
901 PM MDT Sat May 22 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTH CENTRAL LAS ANIMAS 
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.

LAT...LON 3721 10459 3701 10463 3700 10445 3711 10438
      3725 10437 3724 10449

$$

Moore

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 6:27 PM MDT	Severe Thunderstorm Warning	PUB	Las Animas, Otero, Pueblo	63 min
May 22, 6:31 PM MDT	Special Weather Statement	PUB	Las Animas	29 min
May 22, 6:44 PM MDT	Severe Thunderstorm Warning	PUB	Las Animas	46 min
May 22, 7:32 PM MDT	Special Weather Statement	PUB	Otero	43 min
May 22, 7:32 PM MDT	Special Weather Statement	PUB	Las Animas	43 min
May 22, 7:49 PM MDT	Severe Thunderstorm Warning	PUB	Las Animas, Otero	26 min
May 22, 8:02 PM MDT	Severe Thunderstorm Warning	PUB	Las Animas, Otero	28 min
May 22, 8:28 PM MDT	Severe Thunderstorm Warning	PUB	Bent, Otero	32 min
May 22, 8:59 PM MDT	Special Weather Statement	PUB	Crowley	46 min
May 22, 9:40 PM MDT	Special Weather Statement	PUB	Otero	50 min
May 22, 10:18 PM MDT	Special Weather Statement	PUB	Costilla	27 min
May 23, 12:34 AM MDT	Special Weather Statement	PUB	Fremont	41 min
May 23, 12:38 AM MDT	Special Weather Statement	PUB	Saguache	37 min
May 23, 12:59 AM MDT	Special Weather Statement	PUB	Alamosa	31 min
May 23, 3:17 AM MDT	Special Weather Statement	PUB	Las Animas	28 min
May 23, 4:17 AM MDT	Special Weather Statement	PUB	Las Animas	28 min
May 23, 5:02 AM MDT	Special Weather Statement	PUB	Otero	28 min
May 23, 11:37 AM MDT	Special Weather Statement	PUB	Pueblo	23 min
May 23, 12:02 PM MDT	Special Weather Statement	PUB	Pueblo	28 min
May 23, 12:12 PM MDT	Severe Thunderstorm Warning	PUB	El Paso, Pueblo	33 min
May 23, 12:26 PM MDT	Tornado Warning	PUB	El Paso, Pueblo	34 min
May 23, 12:44 PM MDT	Severe Thunderstorm Warning	PUB	El Paso	32 min
May 23, 12:53 PM MDT	Special Weather Statement	PUB	Pueblo	37 min
May 23, 1:24 PM MDT	Special Weather Statement	PUB	El Paso	36 min
May 23, 5:38 PM MDT	Special Weather Statement	PUB	Kiowa	22 min

Nearby

Flash Flood Warnings in Colorado, 2021 Every 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.