May 8, 2025 Thursday Weather Update
Southeast U.S. trough will be huge rainmaker
May 2025 was the 27th-warmest May in the 132-year national record (1895–2026), at 61.7°F against a 1991–2020 normal of 61.0°F (+0.7°F).
May 2025 was the 12th-wettest May in the 132-year national record (1895–2026), at 3.7in against a 1991–2020 normal of 3.1in (+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.
Scattered thunderstorms today in the warm, moist air south of a backdoor cold-front crashing through the Great Lakes.
By this weekend and early next week, the upper-level low that was spinning over the U.S. Southwest will slowly track along the Gulf coast and intensify with an assist from the polar front — cutting-off again. The result will be a moisture plume out of the Gulf that we can call a mini-atmospheric river = huge rainfall totals from Louisiana to Florida.
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