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TheForecast Post

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

Weather Trader Tropics MILEPOST 93

September 8, 2023 Hurricane Season

Powerful Hurricane Lee will turn due north, eventually

What the month did

September 2023 was the 9th-warmest September in the 131-year national record (1895–2025), at 67.7°F against a 1991–2020 normal of 66.0°F (+1.8°F).

September 2023 was the 27th-driest September in the 131-year national record (1895–2025), at 2.1in against a 1991–2020 normal of 2.6in (-0.4in).

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.

Hurricane Lee briefly reached Category 5 status before slightly weakening. The maximum intensity was 145-knots, but has fallen slightly. While NHC does not forecast explicitly reaching Category 5 again, Lee may intensify again as ocean heat content remains high/warm and wind shear decreases over Atlantic east of Bahamas and north of Puerto Rico. Currently, 1:10 PM ET, Hurricane Lee looks a little rough around the edges especially on the western half of the circulation. Some wind shear is eroding the convection and the eye has filled.

Compare to the peak intensity according to satellite algorithm (ADT) at 2310Z on Sept 07, 2023:

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Milepost
93 · laid 2023-09-08T18:00:36.371000Z
Source
https://weather.substack.com/p/september-8-2023-hurricane-season
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