September 24, 2025 Tropical Storm Humberto
Invest 94L also with a high chance of development as part of twin cyclone system
September 2025 was the 7th-warmest September in the 131-year national record (1895–2025), at 67.9°F against a 1991–2020 normal of 66.0°F (+2.0°F).
September 2025 was the 15th-driest September in the 131-year national record (1895–2025), at 1.9in against a 1991–2020 normal of 2.6in (-0.6in).
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.
I really enjoy collecting the maps and typing up these posts — keeps me updated and engaged every day on the ongoing weather in the tropics and around the world.
Current thinking: Humberto will intensity into a large, major hurricane by 5 days (next Monday) and will control the twin cyclone system. HAFS-A up to 125-knots and 942 mb central pressure by Sunday.
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- 745 · laid 2025-09-25T01:11:53.743000Z
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