Flash Flood Warning 13, NWS Denver/Boulder, CO

Issued

Aug 24, 2008, 6:56 PM MDT (00:56 UTC)

Expired

Aug 24, 2008, 8:45 PM MDT

In force

109 min

Issued by

NWS Denver/Boulder, CO

Area

Storm-based polygon

Flood severity

None

Counties Douglas County, CO, Jefferson County, CO

The Denver radar (KFTG), 81 km from the middle of the area, began a volume at 00:58 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.

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

000 
WGUS55 KBOU 250056
FFWBOU
COC035-059-250245-
/O.NEW.KBOU.FF.W.0013.080825T0056Z-080825T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
656 PM MDT SUN AUG 24 2008

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

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

* UNTIL 845 PM MDT

* AT 652 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM 2 MILES EAST OF DECKERS...OR 34
  MILES NORTHWEST OF COLORADO SPRINGS. THIS STORM WAS MOVING NORTH AT
  5 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WESTCREEK...DECKERS AND CHEESMAN RESERVOIR.

THIS WARNING EXPANDS THE PREVIOUS FLASH FLOOD WARNING THAT WAS IN 
EFFECT FOR SOUTHWESTERN DOUGLAS COUNTY.

AN AUTOMATED RAIN GAUGE AT SPRING GULCH INDICATES THAT 1.75 INCHES 
OF RAIN FELL BETWEEN 615 PM AND 655 PM.  THIS RAIN IS IN ADDITION TO 
AN INCH TO INCH AND A HALF OF RAIN THAT FELL OVER THE UPPER BASINS 
OF WEST CREEK BETWEEN 500 PM AND 600 PM.  

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. TURN AROUND...DO NOT DROWN.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF CREEKS
AND STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO
TRIGGER ROCK SLIDES OR MUD FLOWS IN STEEP TERRAIN.

FLOOD WATERS WILL MOVE DOWN WEST CREEK...CAMP CREEK...HORSE CREEK 
AND TROUT CREEK.  THIS WATER WILL MOVE THROUGH THE TOWN OF DECKERS 
AND INTO THE SOUTH PLATTE RIVER.  

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF 
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.  

LAT...LON 3936 10518 3913 10508 3913 10528 3931 10526

$$

DANKERS

000 
WGUS75 KBOU 250148
FFSBOU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
748 PM MDT SUN AUG 24 2008

COC035-059-250245-
/O.CON.KBOU.FF.W.0013.000000T0000Z-080825T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JEFFERSON CO-DOUGLAS CO-
748 PM MDT SUN AUG 24 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM MDT FOR
SOUTHWESTERN DOUGLAS AND SOUTH CENTRAL JEFFERSON COUNTIES...

AT 740 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE VERY HEAVY RAIN OVER SOUTHWESTERN DOUGLAS COUNTY HAD 
DISSIPATED.  HOWEVER...SPOTTER REPORTS AND AUTOMATED RAIN GAUGES 
INDICATE THAT BETWEEN ONE AND TWO INCHES OF RAIN FELL OVER THE 
HAYMAN BURN AREA IN DOUGLAS COUNTY IN ONE HOUR.  

RUNOFF FROM THIS HEAVY RAIN WILL TAKE THE REMAINDER OF THE EVENING
TO MOVE DOWN THE CREEKS UPSTREAM OF DECKERS AND INTO THE SOUTH 
PLATTE RIVER.  HIGHWAY 67 AT RAINBOW FALLS HAS BEEN CLOSED BY A 
MUDSLIDE CAUSED BY THE HEAVY RAIN.  STUMP ROAD HAS ALSO BEEN WASHED 
OUT.  

LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WESTCREEK...DECKERS AND CHEESMAN RESERVOIR.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY AS THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A
FEW INCHES OF RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR
VEHICLE. TURN AROUND...DO NOT DROWN.

LAT...LON 3936 10518 3913 10508 3913 10528 3931 10526

$$

DANKERS

000 
WGUS75 KBOU 250244
FFSBOU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
844 PM MDT SUN AUG 24 2008

COC035-059-250253-
/O.EXP.KBOU.FF.W.0013.000000T0000Z-080825T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JEFFERSON CO-DOUGLAS CO-
844 PM MDT SUN AUG 24 2008

...THE FLASH FLOOD WARNING WILL EXPIRE AT 845 PM MDT FOR SOUTHWESTERN
DOUGLAS AND SOUTH CENTRAL JEFFERSON COUNTIES...

THE STORM THAT PROMPTED THE WARNING HAS EXITED THE AREA.  NO FURTHER 
FLOODING PROBLEMS HAVE BEEN NOTED BY THE DOUGLAS COUNTY SHERIFF.

HOWEVER...HIGHWAY 67 AT RAINBOW FALLS REMAINS CLOSED DUE TO A LARGE 
MUDSLIDE.

LAT...LON 3936 10518 3913 10508 3913 10528 3931 10526

$$
BARJENBRUCH

Flash Flood Warnings in Colorado, 2008Every flash flood warning in 2008

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.