Special Marine Warning
NWS Juneau AK ยท US
Details
Special Marine Warning Remains In Effect Until 2 PM AKDT
- Event
- Special Marine Warning
- Issued
- Onset
- Message expires
- Expected end
- Category
- Meteorological
- Urgency
- Immediate
- Severity
- Severe
- Certainty
- Likely
- Response
- Avoid
Description
Overview
Special Marine Warning for... Southern Stephens Passage... Endicott Arm and Tracy Arm Fjords At 133 PM AKDT, a strong thunderstorm was located north of Hobart Bay, moving north at 25 knots. This storm has weakened slightly the past several minutes, however remains capable of producing winds to near 40 kts and dangerous lightning strikes.
Hazard
Wind gusts to nearly 40 knots.
Source
Satellite imagery indicated.
Impacts
Small craft could be capsized in suddenly higher winds and higher waves. Locations impacted include... Tracy Arm Entrance, Tracy Arm Fjord and Endicott Arm Fjord.
Instructions
Move to safe harbor until hazardous weather passes. Boaters should seek safe harbor immediately until this storm passes. Wind gusts 34 knots or greater, high waves, dangerous lightning, and heavy rain are possible with this storm.
Affected areas
- Stephens Passage
Public contact
- Issuer
- NWS Juneau AK
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~56s
- CAP status
- Actual
- CAP message type
- Update
- Lifecycle
- Updated
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M30BTWWFHEHQP3GJW1EPGVQR
- Identifier
- urn:oid:2.49.0.1.840.0.1dca8f8278ac7ff12c2926213267320a13bbe2a3.002.1
- Sender
- w-nws.webmaster@noaa.gov
- Scope
- Public
- CAP source
- 211803 v2.3.0
- Handling codes
- IPAWSv1.0
- Issuing office
- NWS Juneau AK
- AWIPS ID
- CAPAJK
- NWWS sequence
- nwws_processor.5983
- WMO heading
- XOAK57
- WMO data type
- CAP alert message XML (XO)
- WMO geography
- Alaska (AK)
- WMO bulletin number
- 57
References
- Sender
- w-nws.webmaster@noaa.gov
- Sent
Event codes
| Name | Value |
|---|---|
| SAME | NWS |
| NationalWeatherService | MAW |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | MWSAJK |
| WMOidentifier | FZAK77 PAJK 202133 |
| NWSheadline | SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 2 PM AKDT |
| eventMotionDescription | 2026-09-20T20:59:00-00:00...storm...190DEG...33KT...57.33,-133.46 |
| maxWindGust | 50 knots |
| maxHailSize | 0.00 |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| VTEC | /O.CON.PAJK.MA.W.0004.000000T0000Z-260920T2200Z/ |
| eventEndingTime | 2026-09-20T14:00:00-08:00 |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- Stephens Passage
| Name | Value |
|---|---|
| SAME | 058031 |
| UGC | PKZ031 |
- Polygons
- 58.02,-133.74 58.05,-133.75 57.76,-132.81 57.7,-132.81 57.64,-132.8 57.6,-132.8 57.53,-132.86 57.4,-133.01 57.4,-133.51 58.02,-133.74