Atmospheric River
An atmospheric river is a narrow corridor in the atmosphere that transports large amounts of water vapor from the tropics to other regions. These weather phenomena can result in heavy rainfall and can extend over thousands of kilometers. Atmospheric rivers are crucial for replenishing water resources and can contribute significantly to precipitation events, particularly in coastal and mountainous regions.Why and How it Happens
Atmospheric rivers occur when there is a strong and persistent flow of moisture-laden air from the tropics toward higher latitudes. This flow is driven by the temperature and pressure differences between different regions of the atmosphere. Atmospheric rivers typically form in association with large-scale weather patterns, such as low-pressure systems or the jet stream, and can result in prolonged periods of heavy rainfall or snowfall when they make landfall.
Tips for Preparation
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Before
1. Stay informed:Monitor weather forecasts and updates from local authorities to stay informed about the potential arrival and intensity of an atmospheric river event.2. Build your safety kit:Assemble an emergency kit containing essential supplies such as water, non-perishable food, medications, flashlights, batteries, and first-aid supplies.3. Secure anything outside:Secure outdoor furniture, equipment, and other items that could be swept away or damaged by strong winds or flooding associated with the atmospheric river.4. Prepare your home:Take steps to protect your home from potential flooding, such as clearing gutters and drains, installing flood barriers or sandbags, and elevating valuable items.5. Create an evacuation plan:Develop a family evacuation plan that includes designated meeting points, evacuation routes, and arrangements for pets or other family members with special needs in case evacuation becomes necessary.
During
1. Stay indoors:Avoid unnecessary travel or outdoor activities during an atmospheric river, as heavy rainfall and strong winds can create hazardous conditions.2. Monitor alerts:Stay tuned to weather updates and emergency alerts from local authorities to stay informed about changing conditions and evacuation orders.3. Avoid flood-prone areas:Stay away from rivers, streams, and low-lying areas that are prone to flooding, and do not attempt to drive through flooded roads or bridges.4. Be prepared to evacuate:Have an evacuation plan in place and be ready to evacuate if instructed to do so by authorities. Gather essential items such as medications, important documents, and emergency supplies.5. Stay connected:Keep your phone charged and stay connected with family members, friends, and neighbors to provide updates on your status and receive assistance if needed.
After
1. Assess damage:Once the atmospheric river has passed, survey your property for any damage caused by flooding, landslides, or strong winds. Take photos or videos of the damage for insurance purposes.2. Contact authorities:Report any damage or safety hazards to local authorities, such as flooding, downed power lines, or blocked roads. Follow their instructions for cleanup and recovery efforts.3. Begin minor clean up and repairs:Begin the cleanup process by removing debris and mud from your property. Repair any damage to your home or belongings, such as broken windows, water damage, or structural issues.4. Ensure safety:Take precautions to avoid injury during cleanup activities, such as wearing protective gear and using proper tools. Be cautious of electrical hazards, contaminated water, and unstable structures.5. Seek assistance if needed:Reach out to community resources, such as disaster relief organizations or government agencies, for assistance with cleanup, repairs, and recovery efforts.