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4413 Fourmile at Salina out of service due to road construction
4423 Bridge over Boulder Creek damaged by highway construction
4843 SBC at Cannon Ditch out of service
8802 Fourmile at Logan Mill Rd OOS due to road construction
A2-10087 Rotolo Park (PS) installed June 29, 2020
1330 Roslyn (P)
1630 South Platte River at Dartmouth (S)
1810 Sand Creek at mouth (PS)
2190 Squaw Mountain (Wx)
420 Expo Park
600 Harvard Gulch Park
750 Quincy Reservoir
430 Utah Park
630 Temple Pond
830 Side Creek Park
500 Havana Park
640 Goldsmith at Eastman
850 Flying J Truck Plaza
510 Virginia Court
720 Confluence Pond
1500 Powers Park
RAIN GAGES AFFECTED BY LAWN IRRIGATION
200 Leyden Lake
220 Upper Leyden
410 Kelly Road Dam
610 Harvard Gulch at Jackson
710 Horseshoe Park
720 Confluence Pond
730 No Name Creek at Quincy
1100 Louisville Rec. Center
1200 Broomfield Basin 3207
1600 Englewood Dam
1900 Niver Detention
RAIN GAGES IMPACTED BY WILDLIFE
Most ALERT rain and stream gaging stations are shutdown for the winter and made ready for the next flood season. Boulder County mountain rain gages remain in operation over the winter to assure ready status for early spring storm monitoring. All weather stations and repeaters operate year-round along with the following stage gages:
203 (A2-10088) Leyden Lake
1003 Maple Grove Reservoir
1649 SPR at 19th Street
1659 SPR at Henderson
1703 Cherry Creek at Champa
2333 Bear Creek at Morrison
MHFD assists Boulder County with maintaining ALERT stations in the Boulder Creek and South Boulder Creek watersheds. Boulder County maintains the Saint Vrain Creek and Left Hand Creek stations.
System maintenance is performed by OneRainand WET.
DENVER, April 15, 2021 – Today the Mile High Flood District launched its 43rd annual flash flood prediction program. This early notification service alerts local authorities from the 7-county Denver/Boulder metro area of developing flood threats, operating in partnership with the National Weather Service.
A large network of rain and stream gauges provides continuous monitoring of threatening weather and flood conditions. Twitter users can receive notifications from the ALERT System when heavy rainfall is occurring in the region.
Forecasters at Skyview Weather provide essential support by calling 911 communications when flooding is imminent. Critical information is then relayed to appropriate response agencies.
As we enter the 2021 flooding season, MHFD urges everyone to heed flood warnings by: 1) taking protective actions recommended by NWS and public safety officials; 2) avoiding trail use near streams during heavy downpours; 3) keeping away from floodwaters while on foot or in a vehicle. Remember that most flood fatalities are people who perish in vehicles.
Before flooding impacts your neighborhood, take some time to learn about flood risks near your home, school and workplace; and consider purchasing flood insurance to protect yourself financially. Most property insurance policies do not cover flood losses.
Above all, stay flood safe!
About the Mile High Flood District: MHFD was established by the Colorado legislature in 1969 to protect people, property and our environment by working regionally with local governments to address drainage and flood hazards. This is accomplished through a combination of preservation, mitigation and education activities. MHFD serves a population of approximately 3 million from Denver and parts of the six surrounding counties that include 35 incorporated cities and towns.
In compiling our notes for this year, we wanted to give everyone a chance to weigh-in on any flooding events that may have impacted your communities or you personally. As most of you already know, 2020 had very few rainstorms capable of causing serious flood impacts making this year our least impactful since the F2P2 began 42 years ago.
To help with your recall, here are the storm dates that likely produced daily rainfall amounts of 2” or more:
LOCATION(s) POTENTIALLY IMPACTED
General widespread, low intensity rainfall
max GARR >3.29”, no rain alarms
Arapaho, Boulder, Denver, Douglas & Jefferson Counties including Aurora and Lakewood
max GARR >2.97”, greatest number of rain alarms for a single day in 2020
Intense rainfall exceeding 3 inch-per-hour rates occurred on other days , but total rainfall for those days was under 2 inches. For 2020 rainfall intensity/duration/frequency measurements, download the PeakRain Excel workbook.
Any information you can send us will be most appreciated. Thank you for all you do to keep your communities safe.
Final closing climate trivia…2020 was Colorado’s 3rd driest year on record.
Kevin Stewart, P.E. Engineering Services Manager MILE HIGH FLOOD DISTRICT 2480 W. 26th Ave Suite 156-B | Denver, Colorado 80211 Office: 303-455-6277 |Direct: 303-749-5417 |www.mhfd.org Protecting People, Property, and our Environment
Skyview Weather will be providing the flood forecast and notification services for the 2020 flood season (May 1 thru September 30). This long-running program will function as in the past, working closely with our good friends at the National Weather Service.
Concerning the COVID-19 situation, while Skyview’s services are considered “essential” with respect to Colorado’s Amended Public Health Order, their meteorologists are capable of working from their respective home offices and are expected to do so until the order is lifted.
During April they will be calling their primary contact points to verify phone numbers and update operating procedures. The MHFD Flood Prediction Center phone number is the same as last year (303.458.0789) and can be used anytime to talk with a Skyview forecaster.
ALERT System Field Maintenance
The gaging stations are nearing 100% ready status thanks to the efforts of the field crews from OneRain and Water & Earth Technologies. The COVID social distancing requirements have not slowed the annual start-up progress as their work directly involves providing essential products and services that support critical government functions of public safety and emergency response in full compliance with Colorado’s stay at home order.
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Paramount to UDFCD’s mission is the personal health, safety and welfare of all people that live and work in the Denver metropolitan area and of many visitors that come to enjoy this incredible gateway to the Rocky Mountains.
UDFCD’s flood warning services are primarily oriented toward individual flood safety that requires protective actions to be taken on the part of those individuals to achieve the desired outcome–no lives lost. For flood warnings to be effective, people must first be aware of the flood risks they are living with and take appropriate steps to protect themselves when floods threaten.
Communities play a major role in educating residents about flood dangers and how to stay safe during floods. Actions taken before a flood like purchasing flood insurance, implementing measures to reduce risks to property, having a home or business emergency plan, practicing the plan, keeping emergency supplies on hand including a ‘Go Pack’, and evacuating when advised by local authorities will help assure that you and your loved ones are safe when the worst happens.
UDFCD’s Flood Warning & Information Services program works with communities to achieve this vision by providing local officials with early notifications concerning heavy rain and flood threats in partnership with NOAA’s National Weather Service. Local officials act on these notifications according to their respective emergency plans and warn people in affected high risk areas when a flooding threat becomes more likely.
In addition to providing flood predictions, UDFCD helps communities develop more efficient ways to detect and recognize flood threats. The ALERT System is one reliable way to monitor weather conditions, rainfall and stream levels in real-time. This early flood detection network is operated and maintained by UDFCD. It is used extensively by emergency managers, public works officials, fire departments, law enforcement, meteorologists, hydrologists, engineers, local news broadcasters, and the general public. NWS forecasters frequently make use of this valuable resource for issuing public flood advisories and flash flood warnings.
Commemorating the 50th Anniversary of the 1965 Flood
Legislation to Protect Stormwater Detention in Colorado Updates to the Urban Storm Drainage Criteria Manual Ecological Restoration of Lower Boulder Creek Support Activities for Stormwater Quality & Permitting Extending Discharge Ratings for Water Resources Streamgages
UDFCD’s 2015 Program Activities and more…