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California Heat Wave Disrupts Marine Life, Sparks Shark Migration

4/22/2026

37 8 Full Breakdown

Summary

California Heat Wave

A significant marine heat wave is affecting the California coast and extending to Baja California and beyond.
The heat wave began in late 2025.
Record sea surface temperatures are affecting marine life.
Hammerhead sharks and bluefin tuna are migrating north.
Researchers at the Scripps Institution of Oceanography are monitoring the heat wave as it persists and intensifies, potentially leading to a strong El Niño by late summer.

Summary

California Weather Shift

California faces an unusually active weather pattern in April after a record-breaking March heatwave.
A late-season storm will bring widespread rainfall and mountain snow to northern and central California, while southern California remains mostly dry.
Despite cooler temperatures, many locations remain above long-term averages.
The Sierra Nevada snowpack is alarmingly low and could match the 2015 record low.

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California Heat Wave

A significant marine heat wave is affecting the California coast and extending to Baja California and beyond.
The heat wave began in late 2025.
Record sea surface temperatures are affecting marine life.
Hammerhead sharks and bluefin tuna are migrating north.
Researchers at the Scripps Institution of Oceanography are monitoring the heat wave as it persists and intensifies, potentially leading to a strong El Niño by late summer.

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