Alert archive / Colorado / Flash Flood Warnings in 2016

Flash Flood Warning 20, NWS Pueblo, CO

August 8, 2016Huerfano County, Colorado

NWS Pueblo, CO issued this flash flood warning at Aug 8, 2016, 1:49 PM MDT for Huerfano County, Colorado. It was in force for 116 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
Aug 8, 2016, 1:49 PM MDT (19:49 UTC)
Expired
Aug 8, 2016, 3:45 PM MDT
In force
116 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Flood severity
None

County Huerfano County, CO

The radar

The Pueblo radar (KPUX), 126 km from the middle of the area, began a volume at 19:54 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
Aug 8, 2:10 PM MDTHEAVY RAIN 1.758 Ne Spanish Peaks, CONORMALLY SMALL STREAM NEAR HOME IS NOW RUNNING ABOUT 10X LARGER THAN NORMAL.

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

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 7.8 hours before the alert went out and 303 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 2016-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 159 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 12:00Z on 2016-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -96 square meters per square second.193958Sfc1 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
159 J/kg
Mixed-layer CIN
-235 J/kg
Mixed-layer LCL
2053 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-96 m²/s²
0-3 km storm-relative helicity
-85 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

400 
WGUS55 KPUB 081949
FFWPUB
COC055-082145-
/O.NEW.KPUB.FF.W.0020.160808T1949Z-160808T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
149 PM MDT MON AUG 8 2016

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN HUERFANO COUNTY IN SOUTHEASTERN COLORADO...

* UNTIL 345 PM MDT

* AT 149 PM MDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* FLASH FLOODING WILL REMAIN OVER MAINLY RURAL AREAS OF SOUTHEASTERN
  HUERFANO COUNTY INCLUDING THE EASTERN PORTIONS OF THE EAST PEAK
  BURN SCAR.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...SANTA CLARA
CREEK...SOUTH SANTA CLARA CREEK...CHERRY CREEK AND WALSEN ARROYO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE AWAY FROM RECENTLY BURNED AREAS. LIFE-THREATENING FLOODING OF
CREEKS...ROADS AND NORMALLY DRY ARROYOS IS LIKELY. THE HEAVY RAINS
WILL LIKELY TRIGGER ROCKSLIDES...MUDSLIDES AND DEBRIS FLOWS IN STEEP
TERRAIN...ESPECIALLY IN AND AROUND THESE AREAS.

&&

LAT...LON 3745 10493 3752 10484 3745 10472 3741 10483

$$

KT
3 follow-up statements
025 
WGUS75 KPUB 082024
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
224 PM MDT MON AUG 8 2016

COC055-082145-
/O.CON.KPUB.FF.W.0020.000000T0000Z-160808T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUERFANO CO-
224 PM MDT MON AUG 8 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM MDT FOR
SOUTHEASTERN HUERFANO COUNTY...

AT 210 PM MDT...THE PUBLIC REPORTED HEAVY RAIN FROM THUNDERSTORMS IN
ON THE NORTHEAST EDGE OF THE EAST PEAK BURN SCAR. UP TO TWO INCHES
OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO CONTINUE.

EXCESSIVE RAINFALL OVER THE BURN SCAR WILL RESULT IN DEBRIS FLOW
MOVING THROUGH THE SANTA CLARA CREEK. THE DEBRIS FLOW CAN CONSIST OF
ROCK...MUD...VEGETATION AND OTHER LOOSE MATERIALS.

FLASH FLOODING WILL REMAIN OVER MAINLY RURAL AREAS OF SOUTHEASTERN
HUERFANO COUNTY.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...SANTA CLARA
CREEK...SOUTH SANTA CLARA CREEK...CHERRY CREEK AND WALSEN ARROYO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

MOVE AWAY FROM RECENTLY BURNED AREAS. LIFE-THREATENING FLOODING OF
CREEKS...ROADS AND NORMALLY DRY ARROYOS IS LIKELY. THE HEAVY RAINS
WILL LIKELY TRIGGER ROCKSLIDES...MUDSLIDES AND DEBRIS FLOWS IN STEEP
TERRAIN...ESPECIALLY IN AND AROUND THESE AREAS.

&&

LAT...LON 3745 10493 3752 10484 3745 10472 3741 10483

$$

KT
033 
WGUS75 KPUB 082054
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
254 PM MDT MON AUG 8 2016

COC055-082145-
/O.CON.KPUB.FF.W.0020.000000T0000Z-160808T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUERFANO CO-
254 PM MDT MON AUG 8 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM MDT FOR
SOUTHEASTERN HUERFANO COUNTY...

AT 251 PM MDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE WARNED
AREA. UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS
ALREADY OCCURRING.

EXCESSIVE RAINFALL OVER THE BURN SCAR WILL RESULT IN A DEBRIS FLOW
MOVING THROUGH THE SANTA CLARA CREEK AND THE SMALL CREEKS AND DRY
WASHES ON THE EASTERN SIDE OF THE BURN SCAR. THE DEBRIS FLOW CAN
CONSIST OF ROCK...MUD...VEGETATION AND OTHER LOOSE MATERIALS.

FLASH FLOODING WILL REMAIN OVER MAINLY RURAL AREAS OF SOUTHEASTERN
HUERFANO COUNTY.  

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...SANTA CLARA
CREEK...SOUTH SANTA CLARA CREEK...CHERRY CREEK AND WALSEN ARROYO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

MOVE AWAY FROM RECENTLY BURNED AREAS. LIFE-THREATENING FLOODING OF
CREEKS...ROADS AND NORMALLY DRY ARROYOS IS LIKELY. THE HEAVY RAINS
WILL LIKELY TRIGGER ROCKSLIDES...MUDSLIDES AND DEBRIS FLOWS IN STEEP
TERRAIN...ESPECIALLY IN AND AROUND THESE AREAS.

&&

LAT...LON 3745 10493 3752 10484 3745 10472 3741 10483

$$

KT
772 
WGUS75 KPUB 082140
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
340 PM MDT MON AUG 8 2016

COC055-082149-
/O.EXP.KPUB.FF.W.0020.000000T0000Z-160808T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUERFANO CO-
340 PM MDT MON AUG 8 2016

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN HUERFANO COUNTY WILL
EXPIRE AT 345 PM MDT...

FLOOD WATERS HAVE RECEDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 3745 10493 3752 10484 3745 10472 3741 10483

$$

KT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 7:28 PM MDTSpecial Weather StatementPUBSaguache92 min
Aug 7, 10:30 PM MDTSpecial Weather StatementPUBEl Paso60 min
Aug 7, 10:41 PM MDTSevere Thunderstorm WarningPUBEl Paso, Teller64 min
Aug 7, 11:20 PM MDTFlash Flood WarningPUBEl Paso, Fremont, Teller3 hr
Aug 7, 11:36 PM MDTSpecial Weather StatementPUBTeller84 min
Aug 7, 11:45 PM MDTSevere Thunderstorm WarningPUBEl Paso, Fremont, Teller48 min
Aug 8, 1:22 PM MDTAreal Flood AdvisoryPUBHuerfano, Las Animas3 hr
Aug 8, 1:26 PM MDTSpecial Weather StatementPUBLas Animas34 min
Aug 8, 2:04 PM MDTSpecial Weather StatementPUBFremont41 min
Aug 8, 2:13 PM MDTSpecial Weather StatementPUBSaguache47 min
Aug 8, 2:41 PM MDTSpecial Weather StatementPUBTeller34 min
Aug 8, 2:54 PM MDTSpecial Weather StatementPUBFremont36 min
Aug 8, 3:03 PM MDTSevere Thunderstorm WarningPUBEl Paso, Fremont, Pueblo42 min
Aug 8, 3:29 PM MDTAreal Flood AdvisoryPUBChaffee, Fremont3 hr
Aug 8, 3:32 PM MDTSpecial Weather StatementPUBEl Paso43 min
Aug 8, 3:44 PM MDTSevere Thunderstorm WarningPUBEl Paso, Pueblo31 min
Aug 8, 3:57 PM MDTFlash Flood WarningPUBEl Paso3 hr
Aug 8, 4:55 PM MDTSpecial Weather StatementPUBPueblo50 min

Nearby

Flash Flood Warnings in Colorado, 2016Every flash flood warning in 2016

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.