Alert archive / Colorado / Flash Flood Warnings in 2020

Flash Flood Warning 6, NWS Pueblo, CO

May 30, 2020Pueblo County, Colorado

NWS Pueblo, CO issued this flash flood warning at May 30, 2020, 5:07 PM MDT for Pueblo 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, 5:07 PM MDT (23:07 UTC)
Expired
May 30, 2020, 8:00 PM MDT
In force
3 hr
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Flood severity
None

County Pueblo County, CO

The radar

The Pueblo radar (KPUX), 38 km from the middle of the area, began a volume at 23:11 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

TimeReportWhereRemark
May 30, 5:17 PM MDTFLASH FLOOD3 N Pueblo, COWATER REPORTED FLOWING OVER INTERSTATE 25 AT MM 104.

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, 11.1 hours before the alert went out and 204 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 2020-05-30Temperature 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 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 2020-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 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
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.

662 
WGUS55 KPUB 302307
FFWPUB
COC101-310200-
/O.NEW.KPUB.FF.W.0006.200530T2307Z-200531T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Pueblo has issued a

* Flash Flood Warning for...
  North central Pueblo County in southeastern Colorado...

* Until 800 PM MDT.

* At 506 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area including northern Pueblo and 
  northeastern Pueblo West. 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.

* Some locations that will experience flooding include...
  Northern Pueblo and Pueblo West. 

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.

Remain alert for flooding even in locations not receiving rain.
Arroyos, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.

&&

LAT...LON 3842 10452 3832 10451 3832 10464 3833 10471
      3842 10471

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-3 INCHES IN 1 HOUR

$$

29
3 follow-up statements
390 
WGUS75 KPUB 302319
FFSPUB

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

COC101-310200-
/O.CON.KPUB.FF.W.0006.000000T0000Z-200531T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pueblo CO-
519 PM MDT Sat May 30 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM MDT FOR
NORTH CENTRAL PUEBLO COUNTY...

At 516 PM MDT, trained weather spotters reported thunderstorms 
producing heavy rain in northern Pueblo. Water is covering I-25 at 
mile marker 104, blocking one lane of traffic. Up to three inches of 
rain have already fallen. Flash flooding is ongoing or expected to 
begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Trained weather spotters.

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 flooding include...
Northern Pueblo and Pueblo West. 

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.

Remain alert for flooding even in locations not receiving rain.
Arroyos, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.

&&

LAT...LON 3842 10452 3832 10451 3832 10464 3833 10471
      3842 10471

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL...1-3 INCHES IN 1 HOUR

$$

29
467 
WGUS75 KPUB 310013
FFSPUB

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

COC101-310200-
/O.CON.KPUB.FF.W.0006.000000T0000Z-200531T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pueblo CO-
613 PM MDT Sat May 30 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM MDT FOR
NORTH CENTRAL PUEBLO COUNTY...

At 610 PM MDT, Doppler radar indicated thunderstorms producing 
moderate rain across the warned area, including the northern 
portions of Pueblo and Pueblo West. Up to three and a half 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.

Some locations that will experience flooding include...
Northern Pueblo and Pueblo West. 

Additional rainfall amounts of one half to one inch 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.

Remain alert for flooding even in locations not receiving rain.
Arroyos, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.

&&

LAT...LON 3842 10452 3832 10451 3832 10464 3833 10471
      3842 10471

FLASH FLOOD...RADAR INDICATED

$$

29
508 
WGUS75 KPUB 310154
FFSPUB

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

COC101-310203-
/O.EXP.KPUB.FF.W.0006.000000T0000Z-200531T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pueblo CO-
754 PM MDT Sat May 30 2020

...THE FLASH FLOOD WARNING FOR NORTH CENTRAL PUEBLO COUNTY WILL
EXPIRE AT 800 PM MDT...

The heavy rain has ended and law enforcement has reported that water 
has receded. Flooding is no longer expected to pose a threat. Please 
continue to heed any remaining road closures.

LAT...LON 3842 10452 3832 10451 3832 10464 3833 10471
      3842 10471

$$

29

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 2:22 PM MDTSpecial Weather StatementPUBFremont23 min
May 30, 2:27 PM MDTSpecial Weather StatementPUBEl Paso33 min
May 30, 2:53 PM MDTSpecial Weather StatementPUBEl Paso52 min
May 30, 3:00 PM MDTSpecial Weather StatementPUBTeller30 min
May 30, 3:17 PM MDTSpecial Weather StatementPUBFremont28 min
May 30, 3:32 PM MDTFlash Flood WarningPUBFremont, Teller3 hr
May 30, 3:37 PM MDTSpecial Weather StatementPUBEl Paso23 min
May 30, 3:56 PM MDTSpecial Weather StatementPUBTeller49 min
May 30, 4:08 PM MDTSevere Thunderstorm WarningPUBEl Paso, Pueblo22 min
May 30, 4:13 PM MDTFlash Flood WarningPUBEl Paso, Pueblo3 hr
May 30, 4:26 PM MDTSpecial Weather StatementPUBCuster34 min
May 30, 4:40 PM MDTSpecial Weather StatementPUBPueblo35 min
May 30, 4:42 PM MDTSevere Thunderstorm WarningPUBPueblo33 min
May 30, 5:09 PM MDTSevere Thunderstorm WarningPUBPueblo51 min
May 30, 5:31 PM MDTSevere Thunderstorm WarningPUBPueblo44 min
May 30, 5:36 PM MDTFlash Flood WarningPUBPueblo3 hr

Nearby

Flash Flood Warnings in Colorado, 2020Every 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.