07/17/2022, 12:22 pm EDT

Effects on Climate of Warming Reginal SSTA

As northern hemisphere mid-summer approaches, mid-latitude ocean waters are warming to much above normal levels off the East Asia Coast, north and northeast of Hawaii and east of the Northeast U.S. plus the Mediterranean Sea. ECMWF projects the warming to continue and intensify. Large areas of very warm sea surface temperature anomalies (SSTA) are well-correlated with stronger-than-normal high-pressure aloft which increases risk of drought and anomalous heat in the affected areas.
06/26/2022, 8:54 am EDT

Model Verification Indicates Recent Cooler/Wetter U.S. Forecasts Are Overstated

Recent forecasts for the medium range particularly by GFS have turned somewhat cooler after a nationally hot June pattern (so far). The hot June observations (so far) have been driven in-part by a wide area of soil moisture deficits and a drier Eastern U.S. trend. Consequently, the GFS is verifying too cool in the Midwest States (and too warm in the West). Most models have also been biased too wet North-central and East in June.
05/26/2022, 10:04 am EDT

The Amundsen Sea Semi-Permanent Low-Pressure Trough

Beginning in 2020, a large area of low-pressure formed in the Amundsen Sea off the Antarctic Coast well southwest of South America. The upper trough has intensified and persisted through 2022 so far. There is correlation between the presence of this upper trough and winter cold risk in South America.
05/22/2022, 11:07 am EDT

May 2022 North Atlantic TC Seasonal Activity Forecast Update: La Nina Continues – Seasonal Activity Forecast Increases

The Climate Impact Company 2022 North Atlantic seasonal activity forecast has increased slightly since the initial projection one month ago. The number of tropical storms, hurricanes and intense hurricanes each increases by a count of 1 to 20 storms, 10 hurricanes and 5 intense hurricanes. The ACE index increases from 135 to 149. The increase in activity is due to a more confident La Nina climate forecast.