Special Marine Warning
N
Issued by NWS Miami FL
⏳ In force until Sat 24 Oct, 01:45 📍 Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM (approximate) 🕑 1 h ago
For the following areas... Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM... At 601 PM EDT, a severe thunderstorm was located over Palm Beach Shores, moving north at 5 knots. HAZARD...Wind gusts in excess of 50 knots and large destructive hail. SOURCE...Radar indicated. IMPACT...Boats could suffer significant structural damage in high winds and hail. Small craft could capsize i…
🗃 Archived report - it is no longer on the live map. Pages are kept for 30 days.
📡 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 areaCoastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM
Issuing authorityNWS Miami FL
ContactNot supplied
🕓 Alert timing · EAT
Sent2026-10-23T18:02:00-04:00
Effective2026-10-23T18:02:00-04:00
Onset2026-10-23T18:02:00-04:00
Expires2026-10-23T18:45:00-04:00
📋 Official instructions
Boaters should seek safe harbor immediately until this storm passes. Wind gusts in excess of 50 knots, large destructive hail, high waves, dangerous lightning, and heavy rain are possible with this storm. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. Report severe weather to the Coast Guard or the National Weather Service. You can also share your report with NWS Miami on Facebook and Twitter.📄 Message details
Alert identifierurn:oid:2.49.0.1.840.0.300f861e72e8133fe93b671c54c354aa6fa57c82.001.1
Message typeUpdate
Senderw-nws.webmaster@noaa.gov
ScopePublic
CAP statusActual
Related messagesurn:oid:2.49.0.1.840.0.817c7a1e6e5e238b2d71d44f4976ed048ac3bddf.001.1
ⓘ CAP fields populate when an official alert is linked.
🛡 Safety advice
General guidance for this type of incident - not official instructions.
- Boaters should seek safe harbor immediately until this storm passes. Wind gusts in excess of 50 knots, large destructive hail, high waves, dangerous lightning, and heavy rain are possible with this storm. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. Report severe weather to the Coast Guard or the National Weather Service. You can also share your report with NWS Miami on Facebook and Twitter.
- 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:
- For the following areas...
- Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM...
- At 601 PM EDT, a severe thunderstorm was located over Palm Beach Shores, moving north at 5 knots.
- HAZARD...Wind gusts in excess of 50 knots and large destructive hail.
- SOURCE...Radar indicated.
- IMPACT...Boats could suffer significant structural damage in high winds and hail.
- Small craft could capsize i…
ⓘ News summary · read the original report for full context.
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