Special Marine Warning
N
Issued by NWS Honolulu HI
⏳ In force until Fri 30 Oct, 17:00 📍 Big Island Windward Waters (approximate) 🕑 1 h ago
SMWHFO The National Weather Service in Honolulu has issued a * Special Marine Warning for... Big Island Windward Waters... * Until 400 AM HST. * At 203 AM HST, a severe thunderstorm capable of producing waterspouts was located over Isaac Hale Beach Park, moving east at 5 knots. HAZARD...Waterspouts and wind gusts to 40 knots. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and crea…
📡 CAP alert details
Common Alerting Protocol
Official alert linked
▾
📡 CAP alert details
Common Alerting Protocol
⚠
SeveritySevere
⏱
UrgencyImmediate
❓
CertaintyLikely
EventSpecial Marine Warning
Response typeAvoid
CategoryMet
Affected areaBig Island Windward Waters
Issuing authorityNWS Honolulu HI
ContactNot supplied
🕓 Alert timing · EAT
Sent2026-10-30T02:04:00-10:00
Effective2026-10-30T02:04:00-10:00
Onset2026-10-30T02:04:00-10:00
Expires2026-10-30T04:00:00-10:00
📋 Official instructions
Prepare for gusty winds, steep and fast-building seas, and blinding downpours. Stay low or go below, and make sure all on board are wearing life jackets. Frequent lightning is occurring with this storm. If caught on the open water, stay below deck if possible.📄 Message details
Alert identifierurn:oid:2.49.0.1.840.0.92a90605521f85952bd34e465353cf62d367577c.001.1
Message typeAlert
Senderw-nws.webmaster@noaa.gov
ScopePublic
CAP statusActual
Related messagesNot supplied
ⓘ CAP fields populate when an official alert is linked.
🛡 Safety advice
General guidance for this type of incident - not official instructions.
- Prepare for gusty winds, steep and fast-building seas, and blinding downpours. Stay low or go below, and make sure all on board are wearing life jackets. Frequent lightning is occurring with this storm. If caught on the open water, stay below deck if possible.
- Stay aware of your surroundings in this area.
- Follow official updates from the police and local authorities.
- In an emergency call 112 (police) or 112 (ambulance), or request help through Jilinde.
📰 Story summary
From the report shown in the feed:
- SMWHFO The National Weather Service in Honolulu has issued a * Special Marine Warning for...
- Big Island Windward Waters...
- * Until 400 AM HST.
- * At 203 AM HST, a severe thunderstorm capable of producing waterspouts was located over Isaac Hale Beach Park, moving east at 5 knots.
- HAZARD...Waterspouts and wind gusts to 40 knots.
- SOURCE...Radar.
- IMPACT...Waterspouts can easily overturn boats and crea…
ⓘ News summary · read the original report for full context.
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