Alert archive / Colorado / Flash Flood Warnings in 2020

Flash Flood Warning 4, NWS Pueblo, CO

May 30, 2020Fremont County, Teller County, Colorado

NWS Pueblo, CO issued this flash flood warning at May 30, 2020, 3:32 PM MDT for Fremont County, Teller County, Colorado. It was in force for 3 hr. 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 30, 2020, 3:32 PM MDT (21:32 UTC)
Expired: May 30, 2020, 6:04 PM MDT
In force: 3 hr
Issued by: NWS Pueblo, CO
Area: Storm-based polygon
Flood severity: None

Counties Fremont County, CO, Teller County, CO

The radar

The Pueblo radar (KPUX), 90 km from the middle of the area, began a volume at 21:35 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 30, 5:30 PM MDT	FLASH FLOOD	8 N Canon City, CO	EMERGENCY MANAGER REPORTED THAT ROAD CREWS HAD TO CLEAR ROCKS FROM ROADWAY CAUSED BY FLOODING. ALSO REPORTED WATER BREACHING BANKS ALONG FOUR MILE CREEK.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 9.5 hours before the alert went out and 223 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: 1966 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -25 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.

464 
WGUS55 KPUB 302132
FFWPUB
COC043-119-310030-
/O.NEW.KPUB.FF.W.0004.200530T2132Z-200531T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
332 PM MDT Sat May 30 2020

The National Weather Service in Pueblo has issued a

* Flash Flood Warning for...
  Northeastern Fremont County in central Colorado...
  South central Teller County in central Colorado...

* Until 630 PM MDT.

* At 329 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain over mainly rural areas of northern Fremont County, 
  including Higwhay 67 between Cripple Creek and Canon City. The 
  storm is nearly stationary. Up to two inches of rain have already 
  fallen. Flash flooding is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

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

* Flash flooding will remain over mainly rural areas of northeastern
  Fremont and south central Teller Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

&&

LAT...LON 3866 10517 3852 10512 3848 10514 3848 10523
      3856 10529 3866 10531

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

29

3 follow-up statements

459 
WGUS75 KPUB 302218
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
418 PM MDT Sat May 30 2020

COC043-119-310030-
/O.CON.KPUB.FF.W.0004.000000T0000Z-200531T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fremont CO-Teller CO-
418 PM MDT Sat May 30 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM MDT FOR
NORTHEASTERN FREMONT AND SOUTH CENTRAL TELLER COUNTIES...

At 416 PM MDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Up to two and a half inches of rain 
have already fallen. Flash flooding is ongoing or expected to begin 
shortly, including Highway 67 between Cripple Creek and Canon City.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

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

Flash flooding will remain over mainly rural areas of northeastern
Fremont and south central Teller Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

&&

LAT...LON 3866 10517 3852 10512 3848 10514 3848 10523
      3856 10528 3864 10529 3866 10526

FLASH FLOOD...RADAR INDICATED

$$

29

692 
WGUS75 KPUB 302312
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
512 PM MDT Sat May 30 2020

COC119-302320-
/O.CAN.KPUB.FF.W.0004.000000T0000Z-200531T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Teller CO-
512 PM MDT Sat May 30 2020

...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL TELLER COUNTY IS
CANCELLED...

Flooding is no longer expected to pose a threat. Please continue to
heed any remaining road closures.

LAT...LON 3852 10512 3848 10514 3849 10522 3855 10526
      3862 10527 3863 10525 3864 10516

$$

COC043-310030-
/O.CON.KPUB.FF.W.0004.000000T0000Z-200531T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fremont CO-
512 PM MDT Sat May 30 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM MDT FOR
NORTHEASTERN FREMONT COUNTY...

At 510 PM MDT, Doppler radar indicated thunderstorms that have 
produced heavy rain across the warned area including Highway 67 
between Cripple Creek and Canon City. Up to two inches of rain have 
already fallen, with additional light to moderate rainfall expected. 
Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

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

Flash flooding will remain over mainly rural areas of northeastern
Fremont County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

&&

LAT...LON 3852 10512 3848 10514 3849 10522 3855 10526
      3862 10527 3863 10525 3864 10516

FLASH FLOOD...RADAR INDICATED

$$

29

001 
WGUS75 KPUB 310004
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
604 PM MDT Sat May 30 2020

COC043-310013-
/O.CAN.KPUB.FF.W.0004.000000T0000Z-200531T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fremont CO-
604 PM MDT Sat May 30 2020

...THE FLASH FLOOD WARNING FOR NORTHEASTERN FREMONT COUNTY IS
CANCELLED...

The heavy rain has ended and water is likely receding. Flooding is 
no longer expected to pose a threat, but light rainfall is still 
expected for the next few hours. Please continue to heed any 
remaining road closures.

LAT...LON 3852 10512 3848 10514 3849 10522 3855 10526
      3862 10527 3863 10525 3864 10516

$$

29

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 2:22 PM MDT	Special Weather Statement	PUB	Fremont	23 min
May 30, 2:27 PM MDT	Special Weather Statement	PUB	El Paso	33 min
May 30, 2:53 PM MDT	Special Weather Statement	PUB	El Paso	52 min
May 30, 3:00 PM MDT	Special Weather Statement	PUB	Teller	30 min
May 30, 3:17 PM MDT	Special Weather Statement	PUB	Fremont	28 min
May 30, 3:37 PM MDT	Special Weather Statement	PUB	El Paso	23 min
May 30, 3:56 PM MDT	Special Weather Statement	PUB	Teller	49 min
May 30, 4:08 PM MDT	Severe Thunderstorm Warning	PUB	El Paso, Pueblo	22 min
May 30, 4:13 PM MDT	Flash Flood Warning	PUB	El Paso, Pueblo	3 hr
May 30, 4:26 PM MDT	Special Weather Statement	PUB	Custer	34 min
May 30, 4:40 PM MDT	Special Weather Statement	PUB	Pueblo	35 min
May 30, 4:42 PM MDT	Severe Thunderstorm Warning	PUB	Pueblo	33 min
May 30, 5:07 PM MDT	Flash Flood Warning	PUB	Pueblo	3 hr
May 30, 5:09 PM MDT	Severe Thunderstorm Warning	PUB	Pueblo	51 min
May 30, 5:31 PM MDT	Severe Thunderstorm Warning	PUB	Pueblo	44 min
May 30, 5:36 PM MDT	Flash Flood Warning	PUB	Pueblo	3 hr

Nearby

Flash Flood Warnings in Colorado, 2020 Every flash flood warning in 2020

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.