Alert archive / Colorado / Flash Flood Warnings in 2007

Flash Flood Warning 9, NWS Denver/Boulder, CO

June 24, 2007Jefferson County, Park County, Colorado

NWS Denver/Boulder, CO issued this flash flood warning at Jun 24, 2007, 6:59 PM MDT for Jefferson County, Park County, Colorado. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 24, 2007, 6:59 PM MDT (00:59 UTC)
Expired
Jun 24, 2007, 9:00 PM MDT
In force
2 hr
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

Counties Jefferson County, CO, Park County, CO

The radar

The Denver radar (KFTG), 94 km from the middle of the area, began a volume at 00:59 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 00:00Z, 1.0 hours before the alert went out and 201 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 2007-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 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 00:00Z on 2007-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.1939Sfc1 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
44 J/kg
Mixed-layer CIN
-160 J/kg
Mixed-layer LCL
3898 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
104 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 250100
FFWBOU
COC059-093-250300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
659 PM MDT SUN JUN 24 2007

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

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

* UNTIL 900 PM MDT

* AT 659 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM OVER EXTREME SOUTHWESTERN
  JEFFERSON COUNTY...OR ABOUT 35 MILES NORTHWEST OF COLORADO SPRINGS.
  THIS STORM WAS MOVING NORTHEAST AT 20 MPH.

* THE STORM PRODUCING VERY HEAVY RAIN WILL REMAIN OVER MAINLY RURAL
  AREAS OF THE WARNED COUNTIES.

AUTOMATED RAIN GAUGES INDICATE THAT 1 INCH OF RAIN HAS FALLEN IN 35 
MINUTES.  AFFECTED STREAMS WOULD INCLUDE WILDCAT CREEK AND GOOSE 
CREEK IN SOUTHWEST JEFFERSON COUNTY.  

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.

LAT...LON 3912 10544 3908 10538 3913 10533 3917 10529
      3919 10534 3916 10539

$$
3 follow-up statements
000 
WGUS75 KBOU 250143
FFSBOU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
741 PM MDT SUN JUN 24 2007

COC059-093-250300-
PARK CO-JEFFERSON CO-
741 PM MDT SUN JUN 24 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM MDT FOR
EXTREME SOUTHWESTERN JEFFERSON AND EAST CENTRAL PARK COUNTIES...

AT 741 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY
HEAVY RAIN FROM A THUNDERSTORM OVER EXTREME SOUTHWESTERN DOUGLAS
COUNTY...OR ABOUT 32 MILES NORTHWEST OF COLORADO SPRINGS. THIS STORM
WAS MOVING EAST AT 10 MPH.

THE STORM PRODUCING VERY HEAVY RAIN WILL REMAIN OVER MAINLY RURAL
AREAS OF THE WARNED COUNTIES.

AUTOMATED RAIN GAUGES INDICATE THAT 1.50 INCHES OF RAIN HAS FALLEN 
FROM THIS STORM IN THE LAST HOUR.  AFFECTED STREAMS WOULD INCLUDE 
WILDCAT CREEK AND GOOSE CREEK IN SOUTHWEST JEFFERSON COUNTY.  

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.


LAT...LON 3912 10544 3908 10538 3913 10533 3917 10529
      3919 10534 3916 10539

$$
000 
WGUS75 KBOU 250222
FFSBOU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
819 PM MDT SUN JUN 24 2007

COC059-093-250300-
PARK CO-JEFFERSON CO-
819 PM MDT SUN JUN 24 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM MDT FOR
EXTREME SOUTHWESTERN JEFFERSON AND EAST CENTRAL PARK COUNTIES...

AT 819 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
RAIN WAS ENDING IN THE HAYMAN BURN AREA OF SOUTHWESTERN JEFFERSON 
AND EAST CENTRAL PARK COUNTIES. 

AUTOMATED RAIN GAUGES INDICATE THAT 1.85 INCHES OF RAIN FELL IN JUST 
OVER ONE HOUR EARLIER THIS EVENING ALONG THE JEFFERSON...PARK COUNTY 
LINE NORTHEAST OF TARRYALL.  AFFECTED STREAMS WOULD INCLUDE 
WILDCAT CREEK AND GOOSE CREEK IN SOUTHWEST JEFFERSON COUNTY.  

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.

LAT...LON 3912 10544 3908 10538 3913 10533 3917 10529
      3919 10534 3916 10539

$$
000 
WGUS75 KBOU 250304
FFSBOU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
904 PM MDT SUN JUN 24 2007

COC059-093-250314-
PARK CO-JEFFERSON CO-
904 PM MDT SUN JUN 24 2007

...THE FLASH FLOOD WARNING HAS EXPIRED FOR EXTREME SOUTHWESTERN
JEFFERSON AND EAST CENTRAL PARK COUNTIES...

RAIN HAD ENDED IN THE HAYMAN BURN AREA AND NO FLOODING HAS BEEN 
REPORTED SO THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 3912 10544 3908 10538 3913 10533 3917 10529
      3919 10534 3916 10539

$$

Nearby

Flash Flood Warnings in Colorado, 2007Every flash flood warning in 2007

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.