Alert archive / Colorado / Flash Flood Warnings in 2004

Flash Flood Warning 3, NWS Denver/Boulder, CO

June 9, 2004Douglas County, Colorado

NWS Denver/Boulder, CO issued this flash flood warning at Jun 9, 2004, 4:39 PM MDT for Douglas 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 9, 2004, 4:39 PM MDT (22:39 UTC)
Expired
Jun 9, 2004, 7:45 PM MDT
In force
3 hr
Issued by
NWS Denver/Boulder, CO
Area
Counties, with a storm outline in the text

County Douglas County, CO

The radar

The Denver radar (KFTG), 86 km from the middle of the area, began a volume at 22:38 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 (KDNR), launched 12:00Z, 10.7 hours before the alert went out and 183 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 2004-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 25 joules per kilogram.LCLLFCEL10008507005003002001001 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 2004-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
25 J/kg
Mixed-layer CIN
-342 J/kg
Mixed-layer LCL
1625 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS55 KBOU 092241
FFWBOU
COC035-100145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
439 PM MDT WED JUN 9 2004

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN DOUGLAS COUNTY IN NORTHEAST COLORADO

* UNTIL 745 PM MDT

* AT 439 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
VERY HEAVY RAIN OVER WESTCREEK IN THE HAYMAN BURN AREA...OR ABOUT 28 
MILES NORTHWEST OF COLORADO SPRINGS. THE STORM PRODUCING THE HEAVY 
RAIN WAS MOVING NORTHEAST AT 10 MPH.

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
WESTCREEK.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

HEAVY RAINFALL WILL CAUSE FLASH FLOODING OF SMALL CREEKS...STREAMS...
AND DITCHES IN THE HAYMAN FIRE BURN AREA. SOME DRAINAGE BASINS
AFFECTED BY EXCESSIVE RUNOFF INCLUDE FOURMILE CREEK...GOOSE CREEK...
SIXMILE CREEK...TRAIL CREEK...TURKEY CREEK...WEST CREEK...AND OTHER
TRIBUTARIES OF THE SOUTH PLATTE RIVER. MUD AND ASH FLOWS CAN ALSO BE
EXPECTED ACROSS RURAL ROADS.

LAT...LON 3914 10528 3914 10511 3922 10499 3927 10520

$$
LESZCYNSKI
2 follow-up statements
000 
WGUS75 KBOU 092337
FFSBOU
COC035-100145-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
537 PM MDT WED JUN 9 2004

A FLASH FLOOD WARNING REMAINS IN EFFECT FOR THE HAYMAN BURN AREA
IN SOUTHWEST DOUGLAS COUNTY UNTIL 745 PM MDT.  

AT 535 PM MDT...NATIONAL WEATHER DOPPLER RADAR INDICATED 
HEAVY RAINFALL HAD MOVED OUT OF THE HAYMAN BURN AREA IN SOUTHWEST 
DOUGLAS COUNTY. HOWEVER...THE STORM HAD PRODUCED ABOUT ONE HALF 
INCH TO 1 INCH OF RAIN.  THE HEAVIEST RAIN HAD FALLEN ALONG THE 
TRAIL CREEK AND WEST CREEK DRAINAGE BASINS.  FLASH FLOODING IS
POSSIBLE THROUGH 7 PM ALONG THOSE CREEKS AS WELL AS NORMALLY 
DRY DITCHES THAT FLOW INTO THOSE STREAMS. 

MUD AND ASH FLOWS ARE ALSO POSSIBLE ACROSS RURAL ROADS.  DO NOT
DRIVE THROUGH FLOODED AREAS. 

IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS ABANDON IT IMMEDIATELY AND
SEEK HIGHER GROUND.

LAT...LON 3914 10528 3914 10511 3922 10499 3927 10520

$$
HUSE
000 
WGUS75 KBOU 100015
FFSBOU
COC035-100030-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
615 PM MDT WED JUN 9 2004

THE FLASH FLOOD WARNING FOR THE HAYMAN BURN AREA 

  IN SOUTHWEST DOUGLAS COUNTY 

UNTIL 745 PM HAS BEEN CANCELLED.  

AT 610 PM MDT...NATIONAL WEATHER DOPPLER RADAR INDICATED HEAVY 
RAINFALL HAD MOVED OUT OF THE HAYMAN BURN AREA...AND WATER OVER 
ROADS HAD RECEDED.

PERSONS IN AND AROUND THE WESTCREEK AREA SHOULD REMAIN ALERT TO
CHANGING WEATHER CONDITIONS.

MOTORISTS SHOULD BE ON THE LOOKOUT FOR POSSIBLE DEBRIS REMAINING 
ON ROADS. ADDITIONAL THUNDERSTORMS MAY MOVE OVER THE HAYMAN BURN 
AREA THROUGH 8 PM THIS EVENING WITH AN ADDITIONAL TENTH TO A 
QUARTER INCH OF RAIN POSSIBLE.  

LAT...LON 3914 10528 3914 10511 3922 10499 3927 10520

$$
HUSE

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 8, 6:07 PM MDTFlash Flood WarningBOUDouglas, Jefferson113 min
Jun 8, 7:58 PM MDTSevere Thunderstorm WarningBOUJefferson47 min
Jun 8, 8:40 PM MDTSevere Thunderstorm WarningBOUAdams, Denver, Jefferson65 min
Jun 8, 8:51 PM MDTFlash Flood WarningBOUAdams, Denver, Jefferson3 hr
Jun 8, 9:19 PM MDTSevere Thunderstorm WarningBOUBoulder, Larimer56 min
Jun 9, 1:55 PM MDTSevere Thunderstorm WarningBOUDouglas, Jefferson50 min
Jun 9, 2:34 PM MDTSevere Thunderstorm WarningBOUArapahoe, Denver, Douglas, Jefferson56 min
Jun 9, 2:48 PM MDTTornado WarningBOUArapahoe, Denver, Jefferson42 min
Jun 9, 2:49 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe56 min
Jun 9, 2:51 PM MDTSevere Thunderstorm WarningBOUWeld54 min
Jun 9, 3:32 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe, Denver, Jefferson58 min
Jun 9, 3:46 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe59 min
Jun 9, 4:18 PM MDTTornado WarningBOUAdams42 min
Jun 9, 4:43 PM MDTSevere Thunderstorm WarningBOUMorgan, Weld62 min
Jun 9, 4:57 PM MDTTornado WarningBOUAdams63 min
Jun 9, 5:08 PM MDTSevere Thunderstorm WarningBOUDouglas52 min
Jun 9, 5:46 PM MDTSevere Thunderstorm WarningBOUMorgan59 min
Jun 9, 5:52 PM MDTSevere Thunderstorm WarningBOUWashington53 min
Jun 9, 5:59 PM MDTTornado WarningBOUMorgan46 min

Nearby

Flash Flood Warnings in Colorado, 2004Every flash flood warning in 2004

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.