High surf warning for Antigua, Barbuda, Anguilla and the British Virgin Islands…
Locations to be affected: Reefs and mainly exposed northern and north-facing coastlines with relatively shallow, gentle to moderately sloping, nearshore areas.
Timing: Until Saturday night for Antigua
Until Sunday morning for Anguilla and Barbuda
Until Sunday midday for the British Virgin Islands
Synopsis: Rising moderate long-period swells are reaching the area and causing very hazardous conditions mainly along northern and north-facing coastlines.
The threat level to the life, livelihood, property and infrastructure of those using the affected coastlines is high, with the potential for extensive impacts.
These swells are expected to cause life-threatening surfs and rip currents for affected coastlines. A high surf warning means that dangerous battering surfs of over 3 metres or over 10 feet will affect some coastlines in the warning area, producing very hazardous conditions.
Seas (significant wave heights): 2.1 to 3.1 metres (7 to 10 feet), occasionally or locally reaching near 3.7 metres (12 feet). Swell period: 9 to 10 seconds. Swells: Northeast at 2.4 to 2.8 metres (8 to 9 feet) and occasionally higher.
Surfs (breaking swells): Over 3 metres (over 10 feet). These conditions will be very conducive to dangerous rip currents. Please note that surfs could be as much as twice the height of swells, depending on the bathymetry of the nearshore areas.
Coastal flooding: High tides combined with onshore wind and swell actions will result in coastal flooding and beach erosion.
Potential Impacts: Loss of life–strong currents that can carry even the strongest swimmers out to sea; injuries to beachgoers; beach erosion; sea water splashing onto low-lying coastal roads; beach closures; disruptions to marine recreation and businesses; financial losses; damage to coral reefs; salt-water intrusion and disruptions to potable water from desalination.
High surfs can knock spectators off exposed rocks and jetties. Breaking waves may occasionally impact harbors making navigating the harbor channel dangerous.
Precautionary actions: No one should enter the waters of the main warning areas. All are also urged to avoid rocky and or coastal structures along affected coastlines.
Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in the sandbar and near structures such as groins, jetties and piers.
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.
Please continue to monitor these hazardous, life-threatening marine conditions. Stay tuned to updates from the Meteorological Office through antiguamet.com and Twitter, Facebook and YouTube Antigua and Barbuda Meteorological Service
Also, stay tuned to other media platforms for updates.
Forecaster: Lorne Salmon
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