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TheForecast Post

A chronicle of American weather and climate  ·  Wednesday, 16 September 2026

Weather Trader Tropics MILEPOST 70

August 17, 2023 Hurricane Season

Hurricane Hilary rapid intensifying

What the month did

August 2023 was the 10th-warmest August in the 132-year national record (1895–2026), at 74.4°F against a 1991–2020 normal of 73.1°F (+1.3°F).

August 2023 was the 43rd-wettest August in the 132-year national record (1895–2026), at 2.8in against a 1991–2020 normal of 2.7in (+0.1in).

NOAA/NCEI Climate at a Glance, contiguous United States. This is the observed record for the month, not a score of anything said in this piece — the forecast ledger begins 2026-08-17 and cannot reach earlier posts.

Main story on Thursday is the rapid intensification of Hurricane Hilary off the SW coast of Mexico in the Eastern Pacific.

Hurricane Hilary could be Category 4 by later today, and make a run at Category 5.

For subscribers

The rest of this piece is for paid subscribers of Weather Trader. The Post keeps the archive, the index and the record; the writing itself stays behind the same subscription it was published under.

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Milepost
70 · laid 2023-08-17T12:04:09.833000Z
Source
https://weather.substack.com/p/august-17-2023-hurricane-season
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