Special marine — York - eastern half
Right now
The most recent data we hold from Environment and Climate Change Canada arrived 5 hours ago.
Nothing else has been detected within 20 km in the last 24 hours.
Official warning
The issuing authority declared this warning over on 22 October 2026 at 20:17 UTC. Its original text remains below.
Highest level recorded: Severe.
Level in this notice: Severe.
Environment Canada
special marine watch in effect
Conditions are favourable for the development of wind gusts between 45 to 55 knots in marine regions in southwestern Hudson Bay early in the morning of Sunday October 25th.
Potential for significant wave heights accompanies these winds, so mariners are advised to exercise caution, especially smaller vessels. The winds are expected to lessen in severity over the course of Sunday afternoon. This watch may be expanded eastward as the event draws near.
###
Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.
Mariners are advised to prepare for potential strong winds. Vulnerable vessels are most at risk and should seek safe harbour if underway.
Closing notice from the authority
special marine watch ended
This alert expired on 22 October 2026 at 20:17 UTC. It is kept here as a record.
It is the only one we have recorded within 20 km of this point since 25 October 2026.
What the source measured
Environment and Climate Change Canada reported: Conditions are favourable for the development of wind gusts between 45 to 55 knots in marine regions in southwestern Hudson Bay early in the morning of Sunday October 25th. Potential for significant wave heights accompanies these winds, so mariners are advised to exercise caution, especially smaller vessels. The winds are expected to lessen in severity over the course of Sunday afternoon. This watch may be expanded eastward as the event draws near. ### Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.
How we know
One source: Environment and Climate Change Canada. Not yet confirmed by a second, independent source.
Our own score for this event is 28 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Event data
| Type | Severe Weather |
| Severity | High |
| Calamity Score (ours) | 28 / 100 |
| Legacy data-support index | 0.47/1 |
| Coordinates | 58.0497, -88.8528 |
| Nearest city | Kenora (991 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact tier | minor |
| Timestamp | 2026-10-25T08:30:00.000Z |
| Source | https://dd.weather.gc.ca/today/alerts/cap/20261022/CWNT/07/T_WHCN16_C_CWNT_202610220751_2318298203.cap |
| Licence | ECCC Data Services End-use Licence 2.1.1 · Environment and Climate Change Canada · Grouped by area and warning; CAP severity mapped; map location derived from alert geometry. Original warning text preserved. |
Physical priority index · v5. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: cap_ca_eccc. Occurrence: 2026-10-25T08:30:00.000Z.
First archived: 2026-10-21T21:12:40.874Z. Material modification: 2026-10-22T12:00:27.396Z.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score breakdown
Technical details
| Event | special marine |
| AreaDesc | York - eastern half |
| Geocodes | [{"name":"layer:EC-MSC-SMC:1.0:CLC","value":"005431"},{"name":"profile:CAP-CP:Location:0.3","value":"6204030"},{"name":"profile:CAP-CP:Location:0.3","value":"6205033"}] |
| Onset | 2026-10-25T08:30:00-00:00 |
| Effective | 2026-10-22T07:54:27-00:00 |
| Expires | 2026-10-22T20:17:01-00:00 |
| TimeBasis | onset |
| LocalDay | 20261025 |
| WarningGeometry | {"polygons":[[[[-87.8548,58.4448],[-87.8702,56.371],[-87.8792,56.3663],[-87.9485,56.2287],[-88.9595,56.7031],[-90.0327,56.9032],[-90.006,57.0264],[-90.025,59.1569],[-87.832,59.7788],[-87.8548,58.4448]]]],"circles":[]} |
| CapTimeZone | America/Rankin_Inlet |
| CapDayBasis | area-centroid-timezone |
| CapSeverity | Severe |
| DailyPeakCapSeverity | Severe |
| CapUrgency | Future |
| CapCertainty | Possible |
| Urgency | Future |
| Certainty | Possible |
| Headline | special marine watch in effect |
| Description | Conditions are favourable for the development of wind gusts between 45 to 55 knots in marine regions in southwestern Hudson Bay early in the morning of Sunday October 25th. Potential for significant wave heights accompanies these winds, so mariners are advised to exercise caution, especially smaller vessels. The winds are expected to lessen in severity over the course of Sunday afternoon. This watch may be expanded eastward as the event draws near. ### Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations. |
| Instruction | Mariners are advised to prepare for potential strong winds. Vulnerable vessels are most at risk and should seek safe harbour if underway. |
Safety information
What to do in dangerous seas
Three things first, then what to do before, during and after. From the US National Weather Service.
For this reportSevere Weather · Canada
Stay out of rough water
High waves and strong currents can pull even strong swimmers out. Swim only where there are lifeguards.
NWSCaught in a current? Swim sideways
Do not fight it: swim parallel to the shore until you are out of it, or float and wave for help.
NWSKeep off jetties and rocks
Big waves sweep people off piers, breakwaters and rocks.
NWS
Before, during, after. Here it is “after”.
Before · Before going to the sea
Check the forecast
The beach and marine forecast, and the flags on the beach.
Ask the lifeguards
They know today’s currents.
National Weather Service
During · When the sea is rough
Small boats stay in port
Follow the harbour master and the marine warnings.
Helping someone
Call a lifeguard or the emergency number; throw something that floats, do not jump in.
National Weather Service
After · When the sea calms
Currents last
They can stay strong after the waves drop.
National Weather Service
Questions people ask
How do I get out of a rip current?
Stay calm and do not swim against it. Swim parallel to the shore until you are free, then swim back at an angle; or float and wave for help. Source: US National Weather Service.
Is a calm, sunny day safe?
Not always: rip currents often form on calm, sunny days. Swim near lifeguards. Source: US National Weather Service.
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