Alert archive / Colorado / Flash Flood Warnings in 2004

Flash Flood Warning 18, NWS Denver/Boulder, CO

July 16, 2004Park County, Colorado

NWS Denver/Boulder, CO issued this flash flood warning at Jul 16, 2004, 3:20 PM MDT for Park County, Colorado. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 16, 2004, 3:20 PM MDT (21:20 UTC)
Expired
Jul 16, 2004, 4:20 PM MDT
In force
60 min
Issued by
NWS Denver/Boulder, CO
Area
Counties, with a storm outline in the text

County Park County, CO

The radar

The Denver radar (KFTG), 108 km from the middle of the area, began a volume at 21:22 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, 9.3 hours before the alert went out and 206 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 2004-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 192 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 2004-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
192 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
624 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
88 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 162123
FFWBOU
COC093-162220-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
320 PM MDT FRI JUL 16 2004

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* FLASH FLOOD WARNING FOR THE HAYMAN BURN...
  EXTREME EAST CENTRAL PARK COUNTY IN CENTRAL COLORADO

* UNTIL 420 PM MDT

* AT 320 PM MDT...THE PUBLIC REPORTED A FLASH FLOOD 4 MILES NORTH OF 
LAKE GEORGE...OR ABOUT 31 MILES NORTHWEST OF COLORADO SPRINGS. 

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

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.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF 
VERMILLION AND CRYSTAL CREEKS IN EST CENTRAL PARK COUNTY AND ALSO 
MAY TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN.

LAT...LON 3913 10544 3898 10543 3898 10534 3913 10533

$$

RPK
1 follow-up statement
000 
WGUS75 KBOU 162233
FFSBOU
COC093-162245-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
431 PM MDT FRI JUL 16 2004

THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR

  EAST CENTRAL PARK COUNTY

UNTIL 420 PM MDT HAS EXPIRED.

AT 431 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
ONLY LIGHT RAIN OVER EAST CENTRAL PARK COUNTY.  NO FURTHER REPORTS 
OF FLOODING HAVE BEEN RECEIVED SO THE WARNING HAS BEEN ALLOWED TO 
EXPIRE.

PERSONS IN AND NEAR LAKE GEORGE SHOULD REMAIN ALERT TO CHANGING
WEATHER CONDITIONS.

LAT...LON 3913 10544 3898 10543 3898 10534 3913 10533

$$

RPK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 7:11 PM MDTSevere Thunderstorm WarningBOUPhillips49 min
Jul 15, 10:19 PM MDTFlash Flood WarningBOULogan3 hr
Jul 16, 2:37 PM MDTFlash Flood WarningBOUDouglas113 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.