July 2026 - Page 4 of 4 - Climate Impact Company

07/06/2026, 5:14 am EDT

Does Aggressive +GLAAM Maintain Hot U.S. Temperature Bias Through JULY (Vs. Cooler AI Models)?

During late June/early July, emergence of a strong positive phase global atmospheric angular momentum (++GLAAM) regime has returned. The new surge of +GLAAM is related to the onset of an El Nino climate. Previously, a pulse of ++GLAAM was observed during late May/early June, elated to a strong Madden Julian oscillation (MJO) episode, and the correlating U.S. temperature anomalies were extremely warm, especially for the Central U.S.

07/05/2026, 12:52 pm EDT

Great Plains Dryness a Mid-Summer Concern?

Generally, there exists potential for significant drying in the Great Plains coupled with anomalous heat in the 1-15-day and 16-30-day periods. ECM leads the charge with other operational models (CMC ENS and GFS ENS) while AI models are somewhat cooler but generally drier, especially eastern Great Plains.

07/05/2026, 11:20 am EDT

1,602 Severe Weather/Event Reports FRI/SAT; More Today and Tomorrow Focused on Mid-Atlantic

A cold front pushing into extreme heat was the catalyst for exceptionally violent severe weather outbreaks extending from the Ohio Valley to New York City on Friday and throughout the Mid-Atlantic region on Saturday. NOAA/SPC tallied 1,602 severe weather events/reports for the 2 days.

07/02/2026, 8:46 am EDT

Strengthening NAWH Is Factor Increasing Trade Winds in Tropics

The North Atlantic warm hole (NAWH) is intensifying, one of the most impressive early July signatures on record. The cold SSTA east of Newfoundland coupled with warm SSTA to the south inspire stronger than normal westerly wind compensated for by stronger easterly trade winds to the south of The Bermuda High.

07/02/2026, 8:16 am EDT

Extended-range CDD Forecasts Shift Hotter

Previously, July 3-9 was forecast as the hottest week of July from the past 10 years at 100 CDD edging the previous peak of 99 in 2016 and 2022. However, the July 3-9 forecast is less hot likely verify near 94 CDD. Suddenly, forecasts expected to shift cooler to the 10-year normal July 10-16 are (now) somewhat warmer lead by hot GFS OP and ECM OP projections.

07/01/2026, 1:14 pm EDT

Upper Equatorial Pacific Ocean Anomalous Heat Breaking Records

Upper ocean heat observations for June 2026 reveal record warmth in the equatorial Pacific region with waters east of the Dateline getting close to the record observed during the all-time strongest El Nino in 1997. Fuel to accelerate El Nino 2026-27 to record levels is clearly present.

07/01/2026, 1:08 pm EDT

Another Regenerating Europe Heatwave Ahead

In Europe, hot weather is regenerating across Southwest Europe in the 5-day outlook, surging northward in the 6-10-day forecast, and broadening across most of Central and Southern Europe in the 11-15-day projection. The ECM 15-day rainfall forecast emphasizes dryness over France and combined with intense heat drought will worsen dramatically.