Alert archive / Colorado / Flash Flood Warnings in 2000
Flash Flood Warning 8, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at Aug 16, 2000, 3:55 PM MDT for Larimer County, Colorado. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Aug 16, 2000, 3:55 PM MDT (21:55 UTC)
- Expired
- Aug 16, 2000, 5:00 PM MDT
- In force
- 65 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Larimer County, CO
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.9 hours before the alert went out and 190 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
- 110 J/kg
- Mixed-layer CIN
- -216 J/kg
- Mixed-layer LCL
- 1743 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 86 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 162156 FFWBOU COC069-162300- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DENVER CO 355 PM MDT WED AUG 16 2000 THE NATIONAL WEATHER SERVICE IN DENVER HAS CONTINUED A * FLASH FLOOD WARNING FOR... SOUTH CENTRAL LARIMER COUNTY IN NORTH CENTRAL COLORADO * UNTIL 500 PM MDT * AT 350 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN OVER THE BOBCAT BURN AREA JUST NORTH OF DRAKE IN SOUTH CENTRAL LARIMER COUNTY...OR ABOUT 20 MILES SOUTHWEST OF FORT COLLINS. THE STORMS PRODUCING THE HEAVY RAIN WERE MOVING SLOWLY EAST AT 5 TO 10 MPH. OTHER STORMS PRODUCING HEAVY RAIN WERE WEST OF THE BURN AREA AND WILL BE MOVING INTO THE AREA BY 415 PM MDT. DOPPLER RADAR ESTIMATES OF UP TO 3 INCHES HAVE FALLEN OVER THE BURN AREA SINCE 1230 PM. LARIMER COUNTY EMERGENCY MANAGEMENT OFFICE REPORTED THE MAIN ACCESS ROAD TO THE AREA HAD WASHED OUT. 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 CREEKS AND STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAU*GHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. LAT...LON 4047 10541 4042 10529 4042 10521 4050 10531 LESZCYNSKI
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 6:00 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 30 min |
| Aug 16, 1:45 PM MDT | Flash Flood Warning | BOU | Larimer | 2 hr |
Nearby
Flash Flood Warnings in Colorado, 2000Every flash flood warning in 2000
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.