Hazards

Longmont faces a variety of threats and hazards. The three types of threats and hazards are:

Natural hazards, which result from acts of nature, such as hurricanes, earthquakes, tornadoes, animal disease outbreak, pandemics, or epidemics.

Technological hazards, which result from accidents or the failures of systems and structures, such as hazardous materials spills or dam failures.

Human-caused incidents, which result from the intentional actions of an adversary, such as a threatened or actual chemical attack, biological attack, or cyber incident.

Flood

Even with Longmont experiencing significant flooding as recently as September 2013, it doesn't mean that it won't happen again soon. The odds of a major flood occurring are the same regardless of when the last flood occurred. Learn about the term "100-year flood" and what it means.

There is no way to predict how or when the next flood will occur, and it's unlikely that flooding will happen in the same way in the future. The magnitude, duration, scope and path of flooding will vary and cause different impacts. Floods can happen at any time, with little or no warning. The best course of action is to be alert and prepared.

Visit our Status and Monitoring webpage to:

- find local weather information
- know the variables involved in flooding
- learn about (and help) our River Watchers

Know How to Stay Connected

Sign up for the City's reverse 9-1-1 emergency notification system for mobile devices, Everbridge mass notification system
View our latest News Releases
Do you use Facebook, NextDoor or Twitter? Like us or Follow us via our Longmont social media accounts
If you own a weather radio the settings are as follows:

Activated as Needed

Tune into the City of Longmont’s radio channel, 1670 AM low frequency on your car radio, for emergency news and updates. Note: This station broadcasts tourism information when there is no emergency.

FEMA and the National Weather Service use the following terms to announce flood information:

Flood Watch: Flooding is possible. Tune in to NOAA Weather Radio, commercial radio, or television for information.

Flash Flood Watch: Flash flooding is possible. Be prepared to move to higher ground. Listen to NOAA Weather Radio, commercial radio, or television for information.

Flood Warning: Flooding is occurring or will occur soon; if advised to evacuate, do so immediately.

Flash Flood Warning: A flash flood is occurring; seek higher ground on foot immediately.

Learn about flood insurance for your property.

Hazardous Materials

During the 1970s and early 1980s, the occurrence of major hazardous materials incidents nationally focused public attention on the need for the containment of hazardous materials and wastes.

But the need for a hazardous materials response does not exist solely to serve the heavy industry you might think. It covers the needs of gas stations, lawn supply companies, welding shops, computer technology-based businesses, body and paint shops, medical facilities and your home garage.

In an emergency dial 9-1-1. See also, Hazardous Materials, Fire Services

Extreme Heat

Learn to recognize the signs of heat illness. Visit: https://www.ready.gov/heat#illness
Do not rely on a fan as your primary cooling device. Fans create air flow and a false sense of comfort, but do not reduce body temperature or prevent heat-related illnesses.
Identify places in the community where you can go to get cool. Take cool showers or baths. Cover windows with drapes or shades.
Wear loose, lightweight, light-colored clothing.
Use your oven less to help reduce the temperature in your home.
If you’re outside, find shade. Wear a hat wide enough to protect your face.
Drink plenty of fluids to stay hydrated.
Avoid high-energy activities or work outdoors, during midday heat, if possible.
Consider pet safety. If they are outside, make sure they have plenty of cool water and access to comfortable shade. Asphalt and dark pavement can be very hot to your pet’s feet. Never leave pets in a closed car on a warm day.

Snowstorm

Road Conditions Longmont
During a snow/ice event, find City of Longmont road condition updates, Monday – Friday, on the Winter Weather Road Report webpage. If conditions are severe, the City's Emergency Alert webpage will be launched as the single-point communication hub for all storm related news and updates, including facility closures. Find general information including snow routes and operational plans on the Snow & Ice Control webpages.

Winter Storm Watch
Normally, when a winter storm is expected, the National Weather Service will issue a Winter Storm WATCH 12- to 36-hours in advance. A winter storm WATCH means that conditions exist for the possible occurrence of severe winter weather such as blizzard conditions, heavy snow, significant freezing rain, or heavy sleet. A Winter Storm WATCH is your signal to prepare for the storm now. Once the storm begins, travel may be too dangerous or impossible.

Winter Storm Warning
Normally, when a winter storm is imminent, the National Weather Service will issue a Winter Storm WARNING or Blizzard WARNING 6- to 24-hours before the storm strikes. A winter storm WARNING means that severe winter weather such as heavy snow, significant freezing rain, or heavy sleet is expected. A Blizzard WARNING means that sustained or gusty winds of 35 mph or more and considerable falling and/or blowing snow reduces visibility to less than one-quarter of a mile for three or more hours. The issuance of the Winter Storm Warning is your signal to take steps necessary to keep you, your family and pets/animals safe during the storm.

Preparing at home (and at work):

Remaining inside protected from the elements is the safest place during a winter storm. The primary concern of being indoors is the potential loss of heat, power, telephone service, and a shortage of supplies if the storm persists for more than a day.
Flashlight with extra batteries
Battery powered weather radio
Extra food and water especially high energy food that requires no cooking or refrigeration such as dried fruit and canned goods
Medicine, first aid supplies, and ample baby supplies
Emergency heating source, such as a stocked fireplace, wood stove, or space heater
Smoke detector and fire extinguisher, the chance of fire increases dramatically using alternative heating
Carbon Monoxide detector

Don't forget, you may not be at home when the storm strikes! Have emergency supplies available at your place of work as well.

Preparing your vehicle:
About 70% of deaths during an ice or snow storm occur in a vehicle! If you wonder if you should attempt to travel, then don't ! If you must travel then allow extra time. Reduce your speed and do not attempt to travel to make sudden turns or stops. Winterize the vehicle so it will be reliable. This includes a good set of tires. Other items necessary for the car or truck include:

Dry blanket(s) or sleeping bag
Cell phone charger or charger battery pack.
Boots and/or extra dry clothing
Flashlight with extra batteries
High calorie non-perishable food (granola bars and powerbars)
Snow shovel, windshield scraper, and brush
Sack of sand, rock salt, or kitty litter for traction
Booster cables
First aid kit and a small container for water
Maps, compass, knife, and water proof matches

All unnecessary travel should be delayed until the storm is over. Seventy percent of all deaths during snow and ice storms occur in vehicles! If you get stranded in your vehicle and shelter is not visible nearby then stay with your vehicle.

Run the motor for about ten minutes each hour for heat. Keep the tailpipe free form snow and open the window slightly from time to time to let in fresh air (REMEMBER CARBON MONOXIDE)
Make yourself visible by turning on the dome light while the engine is running
Exercise occasionally by vigorously moving arms, legs, fingers and toes to keep your blood circulating.
Eat and drink regularly to keep your body temperature up and prevent dehydration.
Provide for pets by making sure they have shelter and plenty of food and fresh water available.

Most deaths and injuries during winter storms can be prevented! Overexertion in the cold kills many people. The heart and blood vessels constrict in cold conditions to preserve body heat. Too much exertion can cause a heart attack.

When shoveling snow or doing other activities in the cold you should always set a slow pace. Take frequent breaks and warm yourself regularly.

Sweating can lead to hypothermia (low body temperature). The signs of hypothermia include uncontrollable shivering, disorientation, slurred speech, and drowsiness or exhaustion. If the body temperature has dropped below 95F seek immediate medical help.

Frostbite can also occur from exposure to the cold. Frostbite causes a loss of feeling and usually occurs in extremities such as toes or fingers first.

When treating hypothermia or frostbite always make sure the affected area is dry and then warm it slowly using blankets! A person suffering from hypothermia must have their chest, neck and head warmed first.

When spending time outdoors in the cold...wear several layers of loose-fitting, light weight, warm clothing. Remove layers of clothing to avoid perspiration, and subsequent chill.

Terrorism

Every community large or small can be subject to an act of terrorism. Most people believe that terrorism can’t happen here in a small town like Longmont. It is perceived to only happen in other places and big cities; however, it could easily happen here.

Terrorists exploit vulnerabilities that may include:

Public Transportation System
Water and Electrical Systems
Hazardous Materials
Lack of Cyber Security

Knowing the steps to take to report a potential threat is key to stopping terrorism. The following are general guidelines from the United States Department of Homeland Security:

Be aware of your surroundings.
Move or leave if you feel uncomfortable or if something does not seem right.
Promptly report to local police:
Learn where emergency exits are located in buildings you frequent and know how to get out in the event of an emergency.
Be prepared to do without services you normally depend on such as electricity, phones, natural gas, ATMs, and internet.

The United States Department of Homeland Security suggests that all citizens should continue to be vigilant, take notice of their surroundings, and report suspicious items or activities to local authorities immediately. Please visit the DHS terrorism page for current terrorism threat level and preparedness information.

Tornado

What is the difference between a watch and a warning?

A tornado watch means that weather conditions will support the formation of a tornado and a tornado may occur in your area. Listen to local radio/television, or NOAA Weather Radio for information and advice.

A tornado warning means that a tornado has actually been sighted or has been indicated by radar and may strike your vicinity. Take action to protect yourself from being blown away, struck by falling objects, or injured by flying debris.

Take shelter

Your best protection is an underground shelter or substantial steel framed or reinforced concrete building.
If you are at home, go to an underground cellar or basement. Or go to a corner of your basement and take cover under a sturdy workbench or table, but be sure not to be directly under heavy appliances on an upper floor. If you have no basement, take cover in the center of the house on the lowest floor, or take refuge in a small room such as a bathroom or closet. Stay away from windows, which pose a threat of flying glass and debris. Do not remain in a trailer or mobile home. They are very susceptible to damage from tornadoes. Take cover in a shelter or lie flat in a ground depression or ditch-line. If you are in a car, DO NOT TRY TO OUTRUN A TORNADO! If one has been sighted near you, park your car immediately and seek refuge in a building, a shelter or a ditch.

Hazards presented during and after a tornado

Leaking gas lines, damaged or leaking gas propane containers, and leaking vehicle gas tanks may explode or ignite.
Debris can easily ignite, especially if electrical wires are severed.
Pools of water and even appliances can be electrically charged.
GENERATORS. Generators are often used during power outages. Generators that are not properly used and maintained can be very hazardous.
HEATING DEVICES. Alternative heating devices used incorrectly create fire hazards. Proper use and maintenance can decrease the possibility of a fire.
APPLIANCES. Appliances that emit smoke or sparks should be repaired or replaced.
COMBUSTIBLES. Look for combustible liquids like gasoline, lighter fluid, and paint thinner that may have spilled. Thoroughly clean the spill and place containers in a well-ventilated area. Keep combustible liquids away from the heat sources.
ELECTRICAL. Assume all wires on the ground are electrically charged. This includes cable TV feeds. Look for and replace frayed or cracked extension and appliance cords, loose prongs and plugs. Exposed outlets and wiring could present a fire and life safety hazard. Appliances that emit smoke or sparks should be repaired or replaced. Have a licensed electrician check your home for damage.
GAS LEAKS. Smell and listen for leaky gas connections. If you believe there is a gas leak, immediately leave the house and leave the door(s) open. Never strike a match. Any size flame can spark an explosion. Before turning the gas back on, have the gas system checked by a professional.
GENERATOR SAFETY. Follow the manufacture's instructions and guidelines when using generators.
Use a generator or other fuel-powered machines outside the home, CO fumes are odorless and can quickly overwhelm you indoors. Use the appropriate sized and type power cords to carry the electric load. Overloaded cords can overheat and cause fires. Never run cords under rugs or carpets where heat might build up or damage to a cord may go unnoticed. Never connect generators to another power source such as power lines. The reverse flow of electricity or "backfeed" can electrocute an unsuspecting utility worker.
HEATING SAFETY. Kerosene heaters may not be legal in your area and should only be used where approved by authorities. Do not use the kitchen oven range to heat your home. In addition to being a fire hazard, it can be a source of toxic fumes. Alternative heaters need their space. Keep anything combustible at least three feet away. Make sure your alternative heaters have "tip switches." These "tip switches" are designed to automatically turn off the heater in the event they tip over. Only use the type of fuel recommended by the manufacturer and follow suggested guidelines. Never refill a space heater while it is operating or still hot. Refuel heaters only outdoors. Make sure wood stoves are properly installed, and at least 3 feet away from combustible materials. Ensure they have the proper floor support and adequate ventilation. Use a glass or metal screen in front of our fireplace to prevent sparks from igniting nearby carpets, furniture or other combustible items.
CANDLES. Be careful when using candles. Keep the flame away from combustible objects and out of the reach of children.
SMOKE ALARMS. Some smoke alarms may be dependent on your home's electrical service and could be inoperative during a power outage. Check to see if your smoke alarm uses a back-up battery and install a new battery at least once a year. Smoke alarms should be installed on every level of your home. All smoke alarms should be tested monthly. All batteries should be replaced with new ones at least once a year.
HYDRANT. If there is a fire hydrant near your home, keep it clear of debris for easy access by the fire department.What causes a tornado?For more information about emergency preparedness in Longmont, please call the City of Longmont, Office of Emergency Management at (303) 651-8438 or contact us by email.