Flash Flood Warning 8, NWS Denver/Boulder, CO

Issued

Jun 28, 2012, 3:18 PM MDT (21:18 UTC)

Expired

Jun 28, 2012, 4:45 PM MDT

In force

87 min

Issued by

NWS Denver/Boulder, CO

Area

Storm-based polygon

Flood severity

None

County Larimer County, CO

The Cheyenne radar (KCYS), 70 km from the middle of the area, began a volume at 21:19 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.

120 
WGUS55 KBOU 282118
FFWBOU
COC069-282245-
/O.NEW.KBOU.FF.W.0008.120628T2118Z-120628T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
318 PM MDT THU JUN 28 2012

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL LARIMER COUNTY IN NORTH CENTRAL COLORADO

* UNTIL 445 PM MDT

* AT 315 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN FROM A THUNDERSTORM WITHIN THE HIGH PARK WILD FIRE 
  AREA APPROXIMATELY 2 MILES SOUTHEAST OF BUCKHORN MOUNTAIN...OR 11  
  MILES WEST OF FORT COLLINS. THIS STORM WAS NEARLY STATIONARY.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BUCKHORN
  MOUNTAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

NATIONAL WEATHER SERVICE RADAR HAS INDICATED THAT 0.40 TO 0.50 INCH 
OF RAIN HAS FALLEN ON THE SOUTHEAST SIDE OF THE HIGH PARK BURN SCAR 
IN THE PAST 30 MINUTES.    

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 DEBRIS FLOWS IN STEEP TERRAIN.

&&

LAT...LON 4068 10519 4058 10516 4053 10537 4062 10537

$$


BAKER

857 
WGUS75 KBOU 282239
FFSBOU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
439 PM MDT THU JUN 28 2012

COC069-282245-
/O.CON.KBOU.FF.W.0008.000000T0000Z-120628T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LARIMER CO-
439 PM MDT THU JUN 28 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM MDT FOR THE 
HIGH PARK WILDFIRE BURN AREA IN CENTRAL LARIMER COUNTY...

AT 428 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR NO LONGER 
INDICATED HEAVY RAIN OVER THE HIGH PARK WILDFIRE IN CENTRAL LARIMER 
COUNTY. HOWEVER HEAVY RAIN OVER SOUTHEAST PORTIONS OF THE HIGH PARK 
WILD FIRE...ABOUT 6 MILES EAST OF BUCKHORN MOUNTAIN...OR ABOUT 7 
MILES WEST OF FORT COLLINS LIKELY CAUSED MUD SLIDES AND FLOODING OF 
GULLIES AND SMALL STREAMS IN THE BURNED OVER TERRAIN.

LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BUCKHORN MOUNTAIN.

DOPPLER RADAR ESTIMATES THAT 1 TO 1.25 INCHES OF RAIN FELL FROM A 
THUNDERSTORM THAT PAST OVER THE AREA BETWEEN 1:50 AND 2:30 PM THIS 
AFTERNOON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL EARLIER THIS AFTERNOON MAY STILL CAUSE FLASH FLOODING 
OF CREEKS...STREAMS...AND DITCHES IN THE HIGH PARK BURN AREA. HEAVY 
RUNOFF MAY STILL FLOW DOWN ROADWAYS. ROCK SLIDES OR DEBRIS FLOWS CAN 
ALSO BE EXPECTED.

&&

LAT...LON 4068 10519 4058 10516 4053 10537 4062 10537

$$


BAKER

Flash Flood Warnings in Colorado, 2012Every flash flood warning in 2012

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.