Flash Flood Warning 6, NWS Denver/Boulder, CO

Issued

Jun 7, 2012, 12:52 AM MDT (06:52 UTC)

Expired

Jun 7, 2012, 3:45 AM MDT

In force

3 hr

Issued by

NWS Denver/Boulder, CO

Area

Storm-based polygon

Flood severity

None

Counties Arapahoe County, CO, Denver County, CO, Jefferson County, CO

The Denver radar (KFTG), 49 km from the middle of the area, began a volume at 06:52 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.

598 
WGUS55 KBOU 070652
FFWBOU
COC005-031-059-070945-
/O.NEW.KBOU.FF.W.0006.120607T0652Z-120607T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
1252 AM MDT THU JUN 7 2012

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL JEFFERSON COUNTY IN NORTHEAST COLORADO
  EXTREME SOUTHWESTERN ARAPAHOE COUNTY IN NORTHEAST COLORADO
  SOUTHWESTERN DENVER COUNTY IN NORTHEAST COLORADO

* UNTIL 345 AM MDT

* AT 1251 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM NEAR CHATFIELD RESERVOIR...OR
  13 MILES SOUTH OF DENVER. THIS STORM WAS MOVING EAST AT 10
  MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SHERIDAN...
  CHATFIELD RESERVOIR...LITTLETON...SOUTHEASTERN LAKEWOOD...WESTERN
  ENGLEWOOD AND SOUTHWESTERN DENVER.

DOPPLER RADAR ESTIMATES THAT AROUND 2 INCHES OF RAIN HAS FALLEN FROM 
THUNDERSTORMS IN 45 MINUTES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

&&

LAT...LON 3970 10513 3971 10507 3970 10497 3956 10501
      3957 10505 3954 10508 3953 10508 3952 10508
      3951 10513

$$

809 
WGUS75 KBOU 070939
FFSBOU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
339 AM MDT THU JUN 7 2012

COC005-031-059-070948-
/O.EXP.KBOU.FF.W.0006.000000T0000Z-120607T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JEFFERSON CO-ARAPAHOE CO-DENVER CO-
339 AM MDT THU JUN 7 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 345 AM MDT FOR SOUTHWESTERN
DENVER...EXTREME SOUTHWESTERN ARAPAHOE AND EAST CENTRAL JEFFERSON
COUNTIES...

THE STORMS THAT PROMPTED THE WARNING HAVE EXITED THE AREA. ANYWHERE 
FROM 1 TO 3 INCHES OF RAIN HAVE FALLEN ACROSS THE SOUTHWEST PART OF 
THE DENVER METRO AREA. STREAMS AND DRAINAGE AREAS WILL CONTINUE TO 
RUN HIGH AND MAY CONTINUE TO FLOOD LOW LYING AREAS. AN AREAL FLOOD 
WARNING WILL REMAIN IN EFFECT THIS MORNING.

LAT...LON 3970 10513 3971 10507 3970 10497 3956 10501
      3957 10505 3954 10508 3953 10508 3952 10508
      3951 10513

$$

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.