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Salish Sea

Thunderbolt – Residency

35th sighting in Salish Sea
Fluke of Thunderbolt
Thunderbolt Confirmed in the catalog @100218
May 21 – Sep 19, 2026 · Salish Sea

Green Water Crowd

Surfaced surrounded by friends in my favorite channel all summer.

230 m
Deepest dive
7:54
Longest dive
86
Dives
Sightings
9
Days between first and last sighting
120
Deepest dive on record
230 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 21, 2026175 m9.5°C65 m
May 22, 202692 m9.5°C66 m
Jun 4, 2026399 m15.9°C230 m
Jun 13, 2026122 m16.0°C79 m
Jul 6, 202694 m16.8°C71 m
Jul 10, 2026345 m14.0°C102 m
Jul 14, 2026225 m15.5°C67 m
Aug 21, 2026248 m14.9°C99 m
Sep 19, 2026218 m—30 m

Seafloor and sea temperature measured · ✳ dives modelled

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
May 21, 2026 — seafloor 175 m (measured), deepest dive 65 m (modelled)May 21May 22, 2026 — seafloor 92 m (measured), deepest dive 66 m (modelled)May 22Jun 4, 2026 — seafloor 399 m (measured), deepest dive 230 m (modelled)Jun 4Jun 13, 2026 — seafloor 122 m (measured), deepest dive 79 m (modelled)Jun 13Jul 6, 2026 — seafloor 94 m (measured), deepest dive 71 m (modelled)Jul 6Jul 10, 2026 — seafloor 345 m (measured), deepest dive 102 m (modelled)Jul 10Jul 14, 2026 — seafloor 225 m (measured), deepest dive 67 m (modelled)Jul 14Aug 21, 2026 — seafloor 248 m (measured), deepest dive 99 m (modelled)Aug 21Sep 19, 2026 — seafloor 218 m (measured), deepest dive 30 m (modelled)Sep 19

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

230 m
Deepest dive
7:54
Longest dive
86
Dives
32 m
Avg dive depth
9
Sightings
120
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0125250230 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (399 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

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Place

Where this happened · Jun 4, 2026

measured
Seafloor depth
399 m
Sea-surface temperature
15.9°C
Distance from shore
8.0 km

Across the residency · 9 sightings

measured
Seafloor depth
92 m – 399 m
Sea-surface temperature
9.5°C – 16.8°C
Distance from shore
2.0 km – 13.0 km

Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 9 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.