Alert archive / Colorado / Flash Flood Warnings in 2004
Flash Flood Warning 6, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at Jun 9, 2004, 7:08 PM MDT for Logan County, Colorado. It was in force for 3 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
- Jun 9, 2004, 7:08 PM MDT (01:08 UTC)
- Expired
- Jun 9, 2004, 10:15 PM MDT
- In force
- 3 hr
- Issued by
- NWS Denver/Boulder, CO
- Area
- Counties, with a storm outline in the text
County Logan County, CO
The radar
The Cheyenne radar (KCYS), 132 km from the middle of the area, began a volume at 01:12 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, 1.1 hours before the alert went out and 88 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
- 484 J/kg
- Mixed-layer CIN
- -150 J/kg
- Mixed-layer LCL
- 1212 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 380 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 6.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS55 KBOU 100110
FFWBOU
COC075-100415-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
708 PM MDT WED JUN 9 2004
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WESTERN LOGAN COUNTY IN NORTHEAST COLORADO
THIS INCLUDES THE CITY OF STERLING
* UNTIL 1015 PM MDT
* AT 708 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN OVER MUCH OF WESTERN LOGAN COUNTY. THE STORMS
PRODUCING THE HEAVY RAIN WERE MOVING NORTHEAST AT 15 MPH.
LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
STERLING...ATWOOD...ILIFF...LOGAN CORNERS...MERINO...NORTH STERLING
RESERVOIR...PADRONI...PAWNEE PASS...PEETZ...WESTPLAINS AND WILLARD.
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 RAINFALL RATES AROUND 2 INCHES PER HOUR.
OVER 2 INCHES OF RAIN HAS ALREADY FALLEN IN THE WILLARD AREA.
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.
DO NOT DRIVE THROUGH FLOODED AREAS. THE WATER MAY BE TOO DEEP TO
ALLOW YOUR VEHICLE TO CROSS SAFELY.
LAT...LON 4054 10356 4055 10347 4046 10344 4045 10317
4100 10291 4103 10359
$$
BARJENBRUCH1 follow-up statement
000
WGUS75 KBOU 100228
FFSBOU
COC075-100245-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
828 PM MDT WED JUN 9 2004
...THE FLASH FLOOD WARNING FOR WESTERN LOGAN COUNTY HAS BEEN
CANCELLED...
AT 825 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
ONLY A STEADY RAIN ACROSS LOGAN COUNTY. THIS RAIN WILL END WITHIN
THE NEXT HOUR...WITH ADDITIONAL RAINFALL AMOUNTS LESS THAN A QUARTER
INCH.
RADAR ESTIMATES THAT 1.5 TO 2.5 INCHES OF RAIN HAS FALLEN ACROSS THE
WESTERN HALF OF LOGAN COUNTY. HOWEVER...NO FLOODING HAS BEEN
OBSERVED SO THE FLASH FLOOD WARNING HAS BEEN CANCELLED.
LAT...LON 4054 10356 4055 10347 4046 10344 4045 10317
4100 10291 4103 10359
$$
BARJENBRUCHThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 6:17 PM MDT | Flash Flood Warning | BOU | Morgan, Weld | 3 hr |
| Jun 9, 6:18 PM MDT | Flash Flood Warning | BOU | Washington | 117 min |
| Jun 9, 6:58 PM MDT | Tornado Warning | BOU | Logan | 47 min |
| Jun 10, 1:36 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Sedgwick | 54 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.