Elevated sea surface temperatures across the central North Pacific, with buoy readings near Hawaii showing 27–29°C waters and positive anomalies, are driving Degree Heating Week accumulation toward the NOAA Coral Reef Watch Alert Level 1 threshold of 4°C-weeks. Lingering El Niño conditions and seasonal fall warming have sustained heat stress, consistent with patterns seen in prior events like 2014–2015 that triggered widespread bleaching. NOAA’s four-month outlooks and 5 km satellite products indicate continued risk through late 2026, though model uncertainty and potential cooling from storms could alter trajectories. Traders’ 71.5% implied probability for Yes reflects this consensus on thermal stress likely crossing the bleaching-expected level by year-end.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWill Hawaii reach Coral Bleaching Alert Level 1 by December 31, 2026?
The Bleaching Alert Area for the Main Hawaiian Islands virtual station reaching Bleaching Alert Level 1 (or a higher alert level) on any single day within this timeframe is sufficient for a "Yes" resolution. For the purposes of this market, Bleaching Alert Level 1 corresponds to a Degree Heating Week (DHW) value of 4 or greater °C-weeks at the Main Hawaiian Islands virtual station, as calculated by NOAA Coral Reef Watch from the 90th-percentile daily HotSpot values within that station's boundary.
The primary resolution source for this market will be the "Bleaching Alert Area" reading on NOAA Coral Reef Watch's Main Hawaiian Islands virtual station gauge page (https://coralreefwatch.noaa.gov/product/vs/gauges/hawaii.php). If that page is unavailable or has not been updated, resolution will use NOAA Coral Reef Watch's own data for the Main Hawaiian Islands virtual station in any other format it publishes (for example, its regional virtual station time-series data files, available at https://coralreefwatch.noaa.gov/product/vs/data.php), which apply the same station-level methodology. Readings for individual 5km satellite pixels that are not aggregated to the Main Hawaiian Islands virtual station will not be used.
Only NOAA Coral Reef Watch readings dated within this market's timeframe (from market creation through December 31, 2026) can trigger a "Yes" resolution. If NOAA Coral Reef Watch data covering this timeframe has not been published by January 4, 2027, this market will remain open until January 11, 2027, or until such data is published, whichever comes first. If no NOAA Coral Reef Watch data covering any day within this market's timeframe is ever published, this market will resolve to "No".
Market Opened: Aug 7, 2026, 2:28 PM ET
Resolution Source
https://coralreefwatch.noaa.gov/product/vs/gauges/hawaii.phpResolver
0x65070BE91...The Bleaching Alert Area for the Main Hawaiian Islands virtual station reaching Bleaching Alert Level 1 (or a higher alert level) on any single day within this timeframe is sufficient for a "Yes" resolution. For the purposes of this market, Bleaching Alert Level 1 corresponds to a Degree Heating Week (DHW) value of 4 or greater °C-weeks at the Main Hawaiian Islands virtual station, as calculated by NOAA Coral Reef Watch from the 90th-percentile daily HotSpot values within that station's boundary.
The primary resolution source for this market will be the "Bleaching Alert Area" reading on NOAA Coral Reef Watch's Main Hawaiian Islands virtual station gauge page (https://coralreefwatch.noaa.gov/product/vs/gauges/hawaii.php). If that page is unavailable or has not been updated, resolution will use NOAA Coral Reef Watch's own data for the Main Hawaiian Islands virtual station in any other format it publishes (for example, its regional virtual station time-series data files, available at https://coralreefwatch.noaa.gov/product/vs/data.php), which apply the same station-level methodology. Readings for individual 5km satellite pixels that are not aggregated to the Main Hawaiian Islands virtual station will not be used.
Only NOAA Coral Reef Watch readings dated within this market's timeframe (from market creation through December 31, 2026) can trigger a "Yes" resolution. If NOAA Coral Reef Watch data covering this timeframe has not been published by January 4, 2027, this market will remain open until January 11, 2027, or until such data is published, whichever comes first. If no NOAA Coral Reef Watch data covering any day within this market's timeframe is ever published, this market will resolve to "No".
Resolution Source
https://coralreefwatch.noaa.gov/product/vs/gauges/hawaii.phpResolver
0x65070BE91...Elevated sea surface temperatures across the central North Pacific, with buoy readings near Hawaii showing 27–29°C waters and positive anomalies, are driving Degree Heating Week accumulation toward the NOAA Coral Reef Watch Alert Level 1 threshold of 4°C-weeks. Lingering El Niño conditions and seasonal fall warming have sustained heat stress, consistent with patterns seen in prior events like 2014–2015 that triggered widespread bleaching. NOAA’s four-month outlooks and 5 km satellite products indicate continued risk through late 2026, though model uncertainty and potential cooling from storms could alter trajectories. Traders’ 71.5% implied probability for Yes reflects this consensus on thermal stress likely crossing the bleaching-expected level by year-end.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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