Latest News
04/30/2026, 12:17 pm EDT
During May, D2-D4 drought conditions develop in North Dakota and expand by 3-7% in South Dakota, Nebraska, Kansas, and Oklahoma. The weeklies forecast for May indicate each state in the Great Plains is generally drier than normal with best chance of thundershowers later in the month when the pattern turns warmer than normal.
04/28/2026, 4:45 pm EDT
As the upper trough deepens in the East next week, a compensating upper ridge crests over Southwest Canada. Copious mid-to-high-level mountain snow melts with peak warming early next week. Serious flooding is possible in this scenario!
04/23/2026, 8:28 am EDT
According to NOAA, aerial coverage of global marine heatwaves (MHW) is 27%. The forecast for aerial coverage from early this year, valid for March, was 23%. Consequently, MHW presence is over-achieving. NOAA is forecasting MHW aerial coverage to increase to 40% later this year, in part due to El Nino.
04/22/2026, 2:21 pm EDT
When the NAWH and Mediterranean Sea MHW were present during 7 of the past 10 meteorological summer seasons, the influence of the oceanic regime on the prevailing weather pattern across Europe is an amplified high-pressure ridge centered on France and Germany.
04/21/2026, 5:43 am EDT
The Climate Impact Company month 1-4 ahead climate outlook is updated. There are some changes from the earlier issued summer 2026 outlook and forecast confidence has increased as predictors are increasingly clear. High impact climate is likely and will affect public safety and market interests. Most prominent is the hot climate forecast for summertime across the West and Northwest U.S. with record heat possible the first half of summer in the Northwest and possibly late summer in California.
Climate Impact Company Chart of the Day
Update: U.S. Population Weight CDD Forecast May-September 2026
The Climate Impact Company U.S. population weight CDD forecast for the 2026 warm season (Fig. 1) averages near or slightly below normal. The MAY/JUN (national) forecast is warm, near the 10-year normal, but lacking extreme heat as observed during MAY/JUN 2024 and JUN 2025. The JUL 2026 forecast is slightly below the 10-year normal and similar with the past 2 mid-summer(s). The AUG/SEP 2026 forecast is similar with 2024 and much warmer than last AUG. The hot bias for the warm season 2026 is in the West with marginal warmth in the high population East Coast.
Climate Impact Company Climate Diagnostics
Models Continue Too Wet Central and Southeast Forecasts Both 16-day AND 16-30-Day
Forecast bias has generally been too wet so far this spring in the Central U.S. Included in that bias are the extended range 16-30-day forecasts. Borth ECM and CFS V2 are too wet in the Great Plains and Southeast U.S. during the past 30 days although ECM is less wet in the Central U.S.