Alert archive / Colorado / Flash Flood Warnings in 2023

Flash Flood Warning 4, NWS Pueblo, CO

May 22, 2023Chaffee County, Fremont County, Saguache County, Colorado

NWS Pueblo, CO issued this flash flood warning at May 22, 2023, 3:19 PM MDT for Chaffee County, Fremont County, Saguache County, Colorado. It was in force for 2 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: May 22, 2023, 3:19 PM MDT (21:19 UTC)
Expired: May 22, 2023, 5:28 PM MDT
In force: 2 hr
Issued by: NWS Pueblo, CO
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

Counties Chaffee County, CO, Fremont County, CO, Saguache County, CO

The radar

The Pueblo radar (KPUX), 158 km from the middle of the area, began a volume at 21:21 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

Grand Junction, CO (KGJT), launched 12:00Z, 9.3 hours before the alert went out and 231 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2063 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

438 
WGUS55 KPUB 222119
FFWPUB
COC015-043-109-230030-
/O.NEW.KPUB.FF.W.0004.230522T2119Z-230523T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
319 PM MDT Mon May 22 2023

The National Weather Service in Pueblo has issued a

* Flash Flood Warning for...
  The Decker Burn Scar in...
  Southeastern Chaffee County in central Colorado...
  West Central Fremont County in central Colorado...
  Northeastern Saguache County in central Colorado...

* Until 630 PM MDT.

* At 319 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain over the Decker Burn Scar. The expected rainfall rate 
  is 1 to 2 inches in 1 hour. 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 Decker Burn
           Scar.

  SOURCE...Radar.

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

* Some locations that will experience flash flooding include...
  Decker Burn Scar.

This includes the following high risk locations...
	County Road 49 and Bear Creek.

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 Decker 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.

Flooding is occurring or is imminent. It is important to know where 
you are relative to streams, rivers, or creeks which can become 
killers in heavy rains. Campers and hikers should avoid streams or 
creeks.

&&

LAT...LON 3849 10602 3848 10593 3840 10596 3838 10596
      3841 10605

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR

$$

MG

1 follow-up statement

696 
WGUS75 KPUB 222328
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
528 PM MDT Mon May 22 2023

COC015-043-109-222338-
/O.CAN.KPUB.FF.W.0004.000000T0000Z-230523T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Chaffee CO-Fremont CO-Saguache CO-
528 PM MDT Mon May 22 2023

...FLASH FLOOD WARNING FOR THE DECKER BURN SCAR IS CANCELLED FOR 
SOUTHEASTERN CHAFFEE, WEST CENTRAL FREMONT AND NORTHEASTERN SAGUACHE 
COUNTIES...

Heavy rain over the burn scar area has ended. A few light showers 
may still occur, but no additional heavy rain is anticipated.

LAT...LON 3849 10602 3848 10593 3840 10596 3838 10596
      3841 10605

$$

Hodanish

The office that day

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

Issued	Product	Office	Counties	Lasted
May 21, 6:20 PM MDT	Special Weather Statement	PUB	Baca	25 min
May 22, 2:29 PM MDT	Special Weather Statement	PUB	El Paso	31 min
May 22, 5:36 PM MDT	Special Weather Statement	PUB	Alamosa	24 min

Nearby

Flash Flood Warnings in Colorado, 2023 Every flash flood warning in 2023

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.