Alert archive / Colorado / Flash Flood Warnings in 2004
Flash Flood Warning 28, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at Jul 29, 2004, 8:04 PM MDT for Washington County, Colorado. It was in force for 86 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 29, 2004, 8:04 PM MDT (02:04 UTC)
- Expired
- Jul 29, 2004, 9:30 PM MDT
- In force
- 86 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Counties, with a storm outline in the text
County Washington County, CO
The radar
The Denver radar (KFTG), 99 km from the middle of the area, began a volume at 02:03 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, 2.1 hours before the alert went out and 15 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.
- Mixed-layer CAPE
- 534 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 3119 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -24 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS55 KBOU 300207
FFWBOU
COC121-300330-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
804 PM MDT THU JUL 29 2004
THE NATIONAL WEATHER SERVICE IN DENVER HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
WEST CENTRAL WASHINGTON COUNTY IN NORTHEAST COLORADO
* UNTIL 930 PM MDT
* AT 804 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN 13 MILES EAST OF WOODLIN SCHOOL...OR ABOUT 22 MILES
SOUTH OF AKRON. THE STORM PRODUCING THE HEAVY RAIN WAS MOVING EAST
AT 20 MPH.
LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...WOODLIN
SCHOOL AND WOODROW.
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.
DOPPLER RADAR ESTIMATES THAT AROUND 4 INCHES OF RAIN FELL EARLIER
THIS EVENING AND WITH ADDITIONAL HEAVY RAIN MORE FLASH FLOODING IS
LIKELY.
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS ESPECIALLY ALONG SAND CREEK...ANTELOPE CREEK AND
VEGA CREEK...COUNTRY ROADS...NORMALLY DRY WASHES AND ARROYOS...AS
WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.
LAT...LON 4001 10333 4001 10363 3973 10359 3973 10329
3987 10331 3990 10331
$$
RPK2 follow-up statements
000
WGUS75 KBOU 300248
FFSBOU
COC121-300330-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
847 PM MDT THU JUL 29 2004
A FLASH FLOOD WARNING REMAINS IN EFFECT FOR
WEST CENTRAL WASHINGTON COUNTY
UNTIL 930 PM MDT.
AT 843 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
RAIN HAD ENDED OVER WEST CENTRAL WASHINGTON COUNTY. RADAR ESTIMATES
THAT AROUND 4 INCHES OF RAIN FELL EARLIER THIS EVENING BETWEEN
WOODROW AND WOODLIN SCHOOL.
LOCATIONS REMAINING IN THE WARNING INCLUDE...BUT ARE NOT LIMITED
TO...WOODLIN SCHOOL AND WOODROW.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS ESPECIALLY ALONG SAND CREEK...ANTELOPE CREEK AND
VEGA CREEK...COUNTRY ROADS...NORMALLY DRY WASHES AND ARROYOS...AS
WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.
LAT...LON 4001 10333 4001 10363 3973 10359 3973 10329
3987 10331 3990 10331
$$
RPK000
WGUS75 KBOU 300330
FFSBOU
COC121-300345-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
930 PM MDT THU JUL 29 2004
THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WEST CENTRAL
WASHINGTON COUNTY UNTIL 930 PM MDT HAS EXPIRED.
RADAR ESTIMATES THAT AROUND 4 INCHES OF RAIN FELL EARLIER THIS
EVENING BETWEEN WOODROW AND WOODLIN SCHOOL HOWEVER NO REPORTS OF
FLOODING HAVE BEEN RECEIVED. THUS THE FLASH FLOOD WARNING HAS BEEN
ALLOWED TO EXPIRE.
LAT...LON 4001 10333 4001 10363 3973 10359 3973 10329
3987 10331 3990 10331
$$
RPKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 4:18 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Boulder, Broomfield, Denver, Jefferson, Weld | 27 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.