Alert archive / Colorado / Flash Flood Warnings in 2005
Flash Flood Warning 9, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at Jun 20, 2005, 4:07 PM MDT for Douglas County, Colorado. It was in force for 113 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
- Jun 20, 2005, 4:07 PM MDT (22:07 UTC)
- Expired
- Jun 20, 2005, 6:00 PM MDT
- In force
- 113 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Counties, with a storm outline in the text
County Douglas County, CO
The radar
The Denver radar (KFTG), 68 km from the middle of the area, began a volume at 22:11 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 160 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
- 174 J/kg
- Mixed-layer CIN
- -480 J/kg
- Mixed-layer LCL
- 2764 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 6 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 202208 FFWBOU COC035-210000- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DENVER CO 407 PM MDT MON JUN 20 2005 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHEASTERN DOUGLAS COUNTY IN NORTHEAST COLORADO * UNTIL 600 PM MDT * AT 406 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM NEAR LARKSPUR...OR ABOUT 22 MILES NORTH OF COLORADO SPRINGS. THE STORM WAS NEARLY STATIONARY * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PERRY PARK...LARKSPUR...GREENLAND...FRANKTOWN AND CASTLE ROCK. 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. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. HASKEL CREEK AND PLUM CREEKS WILL BE ESPECIALLY SUSCEPTABLE TO FLOODING. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING. TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN DENVER. LAT...LON 3914 10509 3914 10469 3941 10467 3939 10499 $$
2 follow-up statements
000 WGUS75 KBOU 202252 FFSBOU FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DENVER CO 450 PM MDT MON JUN 20 2005 COC035-210000- ARAPAHOE CO- 450 PM MDT MON JUN 20 2005 ...A FLASH FLOOD WARNING CONTINUES UNTIL 600 PM MDT FOR SOUTHEAST DOUGLAS COUNTY... AT 445 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAIN CONTINUED OVER SOUTHEAST DOUGLAS COUNTY. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PERRY PARK...LARKSPUR...GREENLAND...FRANKTOWN AND CASTLE ROCK. DOPPLER RADAR ESTIMATES THAT UP TO 5 INCHES OF RAIN MAY HAVE FALLEN FROM THUNDERSTORMS CENTERED NEAR LARKSPUR. PERSONS LIVING ALONG EAST AND WEST PLUM CREEKS...HASKEL AND ANTELOPE CREEKS SHOULD BE PREPARED FOR FLASH FLOODING. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. LAT...LON 3914 10509 3914 10469 3941 10467 3939 10499 $$ TLH
000 WGUS75 KBOU 202254 CCA FFSBOU FLASH FLOOD STATEMENT...CORRECTION NATIONAL WEATHER SERVICE DENVER CO 450 PM MDT MON JUN 20 2005 COC035-210000- DOUGLAS CO- 450 PM MDT MON JUN 20 2005 ...A FLASH FLOOD WARNING CONTINUES UNTIL 600 PM MDT FOR SOUTHEAST DOUGLAS COUNTY... AT 445 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAIN CONTINUED OVER SOUTHEAST DOUGLAS COUNTY. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PERRY PARK...LARKSPUR...GREENLAND...FRANKTOWN AND CASTLE ROCK. DOPPLER RADAR ESTIMATES THAT UP TO 5 INCHES OF RAIN MAY HAVE FALLEN FROM THUNDERSTORMS CENTERED NEAR LARKSPUR. PERSONS LIVING ALONG EAST AND WEST PLUM CREEKS...HASKEL AND ANTELOPE CREEKS SHOULD BE PREPARED FOR FLASH FLOODING. 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. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. LAT...LON 3914 10509 3914 10469 3941 10467 3939 10499 $$ TLH
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 6:57 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 32 min |
| Jun 19, 7:12 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 63 min |
| Jun 19, 8:02 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 43 min |
| Jun 19, 8:05 PM MDT | Flash Flood Warning | BOU | Elbert | 3 hr |
| Jun 19, 8:15 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 45 min |
| Jun 19, 9:29 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 46 min |
| Jun 20, 2:38 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 40 min |
| Jun 20, 3:17 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 43 min |
| Jun 20, 4:02 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 58 min |
| Jun 20, 4:12 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 48 min |
| Jun 20, 4:19 PM MDT | Flash Flood Warning | BOU | Douglas | 116 min |
| Jun 20, 4:20 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 40 min |
| Jun 20, 5:01 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 44 min |
| Jun 20, 5:41 PM MDT | Severe Thunderstorm Warning | BOU | Douglas, Jefferson | 49 min |
| Jun 20, 5:53 PM MDT | Flash Flood Warning | BOU | Douglas | 112 min |
Nearby
Flash Flood Warnings in Colorado, 2005Every flash flood warning in 2005
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.