Alert archive / Colorado / Flash Flood Warnings in 2004
Flash Flood Warning 21, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at Jul 22, 2004, 4:05 PM MDT for Lincoln 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 outline as issued.
The facts
- Issued
- Jul 22, 2004, 4:05 PM MDT (22:05 UTC)
- Expired
- Jul 22, 2004, 6:30 PM MDT
- In force
- 2 hr
- Issued by
- NWS Denver/Boulder, CO
- Area
- Counties, with a storm outline in the text
County Lincoln County, CO
The radar
The Denver radar (KFTG), 105 km from the middle of the area, began a volume at 22:05 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, 10.1 hours before the alert went out and 54 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
- 12 J/kg
- Mixed-layer CIN
- -330 J/kg
- Mixed-layer LCL
- 2129 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS55 KBOU 222207
FFWBOU
COC073-230030-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
405 PM MDT THU JUL 22 2004
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN LINCOLN COUNTY IN EAST CENTRAL COLORADO
* UNTIL 630 PM MDT
* AT 405 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN OVER GENOA...OR ABOUT 11 MILES EAST OF LIMON. THE
STORM PRODUCING THE HEAVY RAIN WAS MOVING SOUTH AT 10 MPH.
LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...ARRIBA
AND GENOA.
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 BETWEEN 2 TO 3 INCHES OF RAIN HAS
FALLEN IN THE WARNING AREA SINCE 3 PM.
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND
ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.
LAT...LON 3956 10371 3921 10362 3920 10316 3937 10316
3956 10316
$$
RJK2 follow-up statements
000
WGUS75 KBOU 222324
FFSBOU
COC073-230030-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
524 PM MDT THU JUL 22 2004
THE NATIONAL WEATHER SERVICE IN DENVER IS CONTINUING A FLASH FLOOD
WARNING FOR NORTHEASTERN LINCOLN COUNTY UNTIL 630 PM MDT
AT 524 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
LIGHT TO MODERATE RAINFALL COVERING ALL OF NORTHERN LINCOLN COUNTY.
THE SHOWERS AND STORMS PRODUCING THE RAIN WERE MOVING SOUTH AT 10
MPH.
RADAR AND SPOTTERS IN THE WARNING AREA ARE INDICATING 2 TO 3.5
INCHES OF RAIN HAS FALLEN.
LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...ARRIBA
AND GENOA.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND
ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.
LAT...LON 3956 10371 3921 10362 3920 10316 3937 10316
3956 10316
$$
RJK000
WGUS75 KBOU 230032
FFSBOU
COC073-230040-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
630 PM MDT THU JUL 22 2004
THE FLASH FLOOD WARNING FOR NORTHEASTERN LINCOLN COUNTY HAS EXPIRED
630 PM MDT.
AT 630 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
LIGHT RAINFALL WAS EXITING TO THE EAST OVER NORTHERN LINCOLN COUNTY
RADAR AND SPOTTERS IN THE WARNING AREA ARE INDICATING 2.5 TO 4.0
INCHES OF RAIN HAD FALLEN OVER NORTHERN LINCOLN COUNTY SINCE 3 PM.
THE LINCOLN COUNTY SHERIFF REPORTED MANY COUNTY ROADS WERE COVERED
WITH WATER ACROSS MUCH OF NORTHERN LINCOLN COUNTY.
LAT...LON 3956 10371 3921 10362 3920 10316 3937 10316
3956 10316
$$
RJKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 7:51 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 39 min |
| Jul 22, 12:54 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver | 51 min |
| Jul 22, 1:22 PM MDT | Tornado Warning | BOU | Adams, Arapahoe, Denver | 38 min |
| Jul 22, 1:50 PM MDT | Tornado Warning | BOU | Elbert | 40 min |
| Jul 22, 3:32 PM MDT | Tornado Warning | BOU | Lincoln | 43 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.