Seoul 27°C Bracket Surges to 80.5% as Afternoon Heat Builds
Seoul's 27°C bracket sits at 80.5% YES as of 04:28 UTC Monday, up 49pp overnight as Incheon Airport afternoon heat presses the resolution target.
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Seoul's 27°C temperature bracket — resolving on the highest daily reading at Incheon International Airport (RKSI) per Wunderground — sits at 80.5% YES as of 04:28 UTC Monday, up a net 49pp from 0.315 at 20:45 UTC Sunday. The overnight arc was not linear: the contract dipped to 0.12 at 22:47 UTC Sunday (the API-reported session minimum is 0.115, outside the sampled window) as Incheon's early morning readings tracked below the resolution threshold, before afternoon heat drove a sharp reversal.
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