Coastal flood and storm surge alerts in effect right now
14 activeCoastal flood alerts are graded by how serious the flooding is: an advisory for minor or nuisance flooding, a watch or warning for moderate to major flooding.
High Surf WarningSouth Central Oregon Coast; Curry County CoastUntil Nov 14, 10:00 PM PST
High Surf Warning issued November 11 at 2:02PM PST until November 14 at 10:00PM PST by NWS Medford OR
Beaches and coastlines will become hazardous due to very large and life-threatening surf conditions. Stay off of beaches, rocks, jetties,piers, and other waterside infrastructure.
Oregon
High Surf WarningCoastal Del Norte; Northern Coastal HumboldtUntil Nov 15, 4:00 AM PST
High Surf Warning issued November 11 at 5:32AM PST until November 15 at 4:00AM PST by NWS Eureka CA
Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures.
California
High Surf WarningSouthwestern Humboldt; Coastal MendocinoUntil Nov 15, 4:00 AM PST
High Surf Warning issued November 11 at 5:32AM PST until November 15 at 4:00AM PST by NWS Eureka CA
Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures.
California
High Surf WarningCoastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey BayUntil Nov 15, 4:00 AM PST
High Surf Warning issued November 11 at 10:48PM PST until November 15 at 4:00AM PST by NWS San Francisco CA
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Everyone should remain out of the water due to life-threatening surf conditions. Stay off of jetties, piers, and other waterside infrastructure. Stay off of jetties, piers, rocks, and other waterside infrastructure. Remain out of the water to avoid hazardous surf and NEVER turn your back on the ocean. Monitor local weather, surf and tide forecasts at www.weather.gov/mtr.
California
High Surf WarningSan Francisco; Southern Monterey Bay and Big Sur CoastUntil Nov 15, 4:00 AM PST
High Surf Warning issued November 11 at 10:48PM PST until November 15 at 4:00AM PST by NWS San Francisco CA
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Everyone should remain out of the water due to life-threatening surf conditions. Stay off of jetties, piers, and other waterside infrastructure. Stay off of jetties, piers, rocks, and other waterside infrastructure. Remain out of the water to avoid hazardous surf and NEVER turn your back on the ocean. Monitor local weather, surf and tide forecasts at www.weather.gov/mtr.
California
Coastal Flood WatchSan Luis Obispo County Beaches; Santa Barbara County Central Coast BeachesUntil Nov 14, 3:00 PM PST
Coastal Flood Watch issued November 11 at 6:06PM PST until November 14 at 3:00PM PST by NWS Los Angeles/Oxnard CA
Take the necessary actions to protect flood-prone property. Plan for extra travel time as some roads may be closed. Remain out of the water due to dangerous surf conditions, or stay near occupied lifeguard towers. Rock jetties can be deadly in such conditions, stay off the rocks.
California
Coastal Flood AdvisoryOcean; Coastal OceanUntil Nov 12, 2:00 PM EST
Coastal Flood Advisory issued November 12 at 2:30AM EST until November 12 at 2:00PM EST by NWS Mount Holly NJ
A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge.
New Jersey
High Surf AdvisoryNiihau; Waianae Coast; Oahu North Shore; Maui Windward West; Kauai North; Molokai Windward; Molokai North; Molokai West; Maui Central Valley North; Windward HaleakalaUntil Nov 12, 6:00 PM HST
High Surf Advisory issued November 11 at 3:43PM HST until November 12 at 6:00PM HST by NWS Honolulu HI
Heed all advice from ocean safety officials. When in doubt, don't go out.
Hawaii
High Surf AdvisoryGuam; Rota; Tinian; SaipanUntil Nov 13, 1:00 PM EST
High Surf Advisory issued November 12 at 3:50PM ChST until November 14 at 4:00AM ChST by NWS Tiyan GU
Rip currents will be life threatening. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. Rip currents will be life threatening. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.
Coastal Flood AdvisorySan Francisco; Southern Monterey Bay and Big Sur CoastUntil Nov 13, 4:00 PM PST
Coastal Flood Advisory issued November 11 at 10:48PM PST until November 13 at 4:00PM PST by NWS San Francisco CA
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Everyone should remain out of the water due to life-threatening surf conditions. Stay off of jetties, piers, and other waterside infrastructure. Stay off of jetties, piers, rocks, and other waterside infrastructure. Remain out of the water to avoid hazardous surf and NEVER turn your back on the ocean. Monitor local weather, surf and tide forecasts at www.weather.gov/mtr.
California
Coastal Flood AdvisoryNorth Bay Interior Valleys; San Francisco Bay ShorelineUntil Nov 13, 4:00 PM PST
Coastal Flood Advisory issued November 11 at 10:48PM PST until November 13 at 4:00PM PST by NWS San Francisco CA
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
California
Coastal Flood AdvisoryCoastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey BayUntil Nov 14, 6:00 PM PST
Coastal Flood Advisory issued November 11 at 10:48PM PST until November 14 at 6:00PM PST by NWS San Francisco CA
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Everyone should remain out of the water due to life-threatening surf conditions. Stay off of jetties, piers, and other waterside infrastructure. Stay off of jetties, piers, rocks, and other waterside infrastructure. Remain out of the water to avoid hazardous surf and NEVER turn your back on the ocean. Monitor local weather, surf and tide forecasts at www.weather.gov/mtr.
California
Coastal Flood AdvisorySan Francisco; Southern Monterey Bay and Big Sur CoastUntil Nov 14, 6:00 PM PST
Coastal Flood Advisory issued November 11 at 10:48PM PST until November 14 at 6:00PM PST by NWS San Francisco CA
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Everyone should remain out of the water due to life-threatening surf conditions. Stay off of jetties, piers, and other waterside infrastructure. Stay off of jetties, piers, rocks, and other waterside infrastructure. Remain out of the water to avoid hazardous surf and NEVER turn your back on the ocean. Monitor local weather, surf and tide forecasts at www.weather.gov/mtr.
California
High Surf AdvisorySan Luis Obispo County Beaches; Santa Barbara County Central Coast BeachesUntil Nov 16, 12:00 PM PST
High Surf Advisory issued November 11 at 6:06PM PST until November 16 at 12:00PM PST by NWS Los Angeles/Oxnard CA
Take the necessary actions to protect flood-prone property. Plan for extra travel time as some roads may be closed. Remain out of the water due to dangerous surf conditions, or stay near occupied lifeguard towers. Rock jetties can be deadly in such conditions, stay off the rocks.
California
No alerts match these filters.
What to do
General steps from official sources.
Get ready
Now
If you are in a flood-prone or low-lying area, get to higher ground immediately when water starts to rise.
Source: NWS: During a flood
Decide
If conditions worsen
Evacuate immediately when water starts to rise. If told to leave, go right away. Follow orders from local emergency management.
Source: NWS: During a flood
Ride it out
During
It is never safe to drive or walk into flood waters. Six inches of fast-moving water can knock over an adult, and twelve inches of rushing water can carry away most cars. Never drive around the barriers blocking a flooded road.
Source: NWS: Turn Around Don't Drown
Recover
After, once it is safe
Stay out of floodwater and do not drive through flooded areas. Return home only when local authorities say it is safe.
Source: CDC: Returning Home After a Natural Disaster
What the coastal alerts mean
Coastal flood alerts are graded by how serious the flooding is: an advisory for minor or nuisance flooding, a watch or warning for moderate to major flooding.
Coastal Flood Advisory
Issued when minor or nuisance coastal flooding is occurring or imminent.
Coastal Flood Watch
Issued when moderate to major coastal flooding is possible. Such flooding would potentially pose a serious risk to life and property.
Coastal Flood Warning
Issued when moderate to major coastal flooding is occurring or imminent. This flooding will pose a serious risk to life and property.
Alert thresholds are set by each National Weather Service office, so the numbers can differ where you live. The text of the alert for your location is what applies. Source: NWS Baltimore/Washington: Watch/Warning/Advisory Definitions. For the full comparison across alert types, see watch vs warning vs advisory.
Coastal alerts by state
Open a state to see its current warnings, watches and advisories.
Common questions about coastal alerts
What is a coastal flood advisory?
Issued when minor or nuisance coastal flooding is occurring or imminent.
What is a coastal flood watch?
Issued when moderate to major coastal flooding is possible. Such flooding would potentially pose a serious risk to life and property.
What is a coastal flood warning?
Issued when moderate to major coastal flooding is occurring or imminent. This flooding will pose a serious risk to life and property.
Alert data comes from the National Weather Service and is refreshed every 15 minutes.