Alert archive / Colorado / Flash Flood Warnings in 2016

Flash Flood Warning 6, NWS Pueblo, CO

June 20, 2016El Paso County, Colorado

NWS Pueblo, CO issued this flash flood warning at Jun 20, 2016, 8:04 PM MDT for El Paso County, Colorado. It was in force for 3 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
Jun 20, 2016, 8:04 PM MDT (02:04 UTC)
Expired
Jun 20, 2016, 11:00 PM MDT
In force
3 hr
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Flood severity
None

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 79 km from the middle of the area, began a volume at 02:04 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

Denver, CO (KDEN), launched 00:00Z, 2.1 hours before the alert went out and 177 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 00:00Z on 2016-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 152 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 00:00Z on 2016-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
152 J/kg
Mixed-layer CIN
-456 J/kg
Mixed-layer LCL
1210 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
161 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

768 
WGUS55 KPUB 210204
FFWPUB
COC041-210500-
/O.NEW.KPUB.FF.W.0006.160621T0204Z-160621T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
804 PM MDT MON JUN 20 2016

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL EL PASO COUNTY IN EAST CENTRAL COLORADO...

* UNTIL 1100 PM MDT

* AT 802 PM MDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA...WHICH INCLUDES THE WALDO
  CANYON BURN SCAR. UP TO ONE INCH OF RAIN HAS ALREADY FALLEN. FLASH
  FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  WESTERN COLORADO SPRINGS...MANITOU SPRINGS AND CASCADE. 

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

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 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.

&&

LAT...LON 3893 10480 3885 10487 3890 10499 3899 10492

$$

EP
3 follow-up statements
101 
WGUS75 KPUB 210226
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
826 PM MDT MON JUN 20 2016

COC041-210500-
/O.CON.KPUB.FF.W.0006.000000T0000Z-160621T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EL PASO CO-
826 PM MDT MON JUN 20 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 PM MDT FOR
WEST CENTRAL EL PASO COUNTY...

AT 824 PM MDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA...WHICH INCLUDES THE WALDO CANYON
BURN SCAR. RADAR INDICATES 1 TO 2 INCHES OF RAIN HAS FALLEN OVER THE
CENTRAL AND SOUTHERN PORTIONS OF THE BURN SCAR. FLASH FLOODING IS
EXPECTED TO BEGIN SHORTLY.

EXCESSIVE RAINFALL OVER THE BURN SCAR WILL RESULT IN DEBRIS FLOW
MOVING THROUGH THE SOUTHERN PORTIONS OF THE WALDO CANYON BURN SCAR.
THE DEBRIS FLOW CAN CONSIST OF ROCK...MUD...VEGETATION AND OTHER
LOOSE MATERIALS.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WESTERN COLORADO SPRINGS...MANITOU SPRINGS AND CASCADE. 

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 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.

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 3893 10480 3885 10487 3890 10499 3899 10492

$$

EP
250 
WGUS75 KPUB 210301
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
901 PM MDT MON JUN 20 2016

COC041-210500-
/O.CON.KPUB.FF.W.0006.000000T0000Z-160621T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EL PASO CO-
901 PM MDT MON JUN 20 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 PM MDT FOR
WEST CENTRAL EL PASO COUNTY...

AT 856 PM MDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA...INCLUDING THE SOUTHERN PORTIONS
OF THE WALDO CANYON BURN SCAR. ONE TO TWO INCHES OF RAIN HAS ALREADY
FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

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

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WESTERN COLORADO SPRINGS...MANITOU SPRINGS AND CASCADE. 

ADDITIONAL RAINFALL AMOUNTS OF A HALF INCH TO AN INCH ARE
POSSIBLE THROUGH 10 PM MDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

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 3893 10480 3885 10487 3890 10499 3899 10492

$$

EP
928 
WGUS75 KPUB 210358
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
958 PM MDT MON JUN 20 2016

COC041-210406-
/O.CAN.KPUB.FF.W.0006.000000T0000Z-160621T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EL PASO CO-
958 PM MDT MON JUN 20 2016

...THE FLASH FLOOD WARNING FOR WEST CENTRAL EL PASO COUNTY IS
CANCELLED...

THE HEAVY RAIN HAS ENDED AND ONLY LIGHT RAINFALL IS EXPECTED FOR THE
REMAINDER OF THE NIGHT. CREEKS AND STREAMS IN THE AREA WILL CONTINUE
TO RUN NEAR BANKFUL THROUGH MIDNIGHT...BUT FLOODING IS NO LONGER
EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ANY REMAINING
ROAD CLOSURES.

LAT...LON 3893 10480 3885 10487 3890 10499 3899 10492

$$

EP

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 7:29 PM MDTSpecial Weather StatementPUBEl Paso46 min
Jun 20, 7:41 PM MDTSevere Thunderstorm WarningPUBEl Paso34 min
Jun 20, 8:13 PM MDTAreal Flood AdvisoryPUBEl Paso2 hr
Jun 20, 8:16 PM MDTSevere Thunderstorm WarningPUBEl Paso29 min
Jun 20, 9:03 PM MDTSpecial Weather StatementPUBTeller42 min
Jun 20, 10:38 PM MDTSpecial Weather StatementPUBFremont37 min
Jun 21, 2:15 PM MDTSpecial Weather StatementPUBChaffee45 min
Jun 21, 3:18 PM MDTSpecial Weather StatementPUBFremont27 min
Jun 21, 4:19 PM MDTSpecial Weather StatementPUBEl Paso26 min
Jun 21, 5:17 PM MDTSpecial Weather StatementPUBEl Paso43 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.