High Surf Warning for South Haleakala; Big Island Southeast
Official alert fields
What you need to know
- Applies to
- Big Island East, Big Island North, Big Island Southeast, Kipahulu, Maui Windward West, South Haleakala, Windward Haleakala
- Effective
- Ends or expires
- Official severity
- Moderate
- Official urgency
- Expected
- Official certainty
- Likely
What is happening
What: For the Big Island, dangerously large surf increasing from 8 to 12 feet tonight to 15 to 20 feet on Saturday. For Maui, dangerously large surf increasing from 7 to 10 feet tonight to 10 to 15 feet on Saturday. Impacts: High. Expect very strong breaking waves and powerful currents. Waves breaking in channel...
What the bulletin says to do
Stay away from the shoreline along the affected coasts. Be prepared for road closures. Postpone entering or leaving channels affected by the high surf until the surf subsides.
Full official description
Bulletin details
...HIGH SURF WARNING FOR EAST FACING SHORES TONIGHT THROUGH SATURDAY NIGHT... .Medium-period swell generated by Tropical Storm Lala will begin to quickly build tonight as it reaches advisory criteria. By Saturday morning, east facing surf for the Big Island increases to warning criteria. Surf peaks on Saturday several feet above the warning threshold for the Big Island and rapidly decreases Saturday night. For Maui, surf peaks late Saturday into Saturday night near the warning threshold and rapidly diminishes by Sunday. * WHAT...For the Big Island, dangerously large surf increasing from 8 to 12 feet tonight to 15 to 20 feet on Saturday. For Maui, dangerously large surf increasing from 7 to 10 feet tonight to 10 to 15 feet on Saturday. * WHERE...East facing shores of Maui and Big Island. * WHEN...From 6 PM this evening to 6 AM HST Sunday. * IMPACTS...High. Expect very strong breaking waves and powerful currents. Waves breaking in channel entrances may make navigating the channels dangerous.
Official geometry where available
Alert boundary
Lifecycle record
Official revisions
- Alert
High Surf Warning issued August 14 at 4:15AM HST until August 16 at 6:00AM HST by NWS Honolulu HI
Official revision - Alert
High Surf Warning issued August 14 at 4:15AM HST until August 16 at 6:00AM HST by NWS Honolulu HI
Official revision
Source and limitations
Publisher: Weather Alert Watch. Primary source: NWS Honolulu HI. This page reorganizes official fields and does not add a forecast or expand the affected area.
- CAP status
- Actual
- Message type
- Alert
- Last collected