05/30/2023, 8:20 am EDT
During May 2023 U.S. wind power generation was below normal on both zonal and meridional directional scales. Wind power generation areas across the Upper Midwest/Midwest U.S. and southwest Great Plains/Western Texas were each affected by the lighter than normal wind speed regimes. The macro-scale driver of the lighter wind speeds was an El Nino-like climate as defined by a vigorous negative phase of the southern oscillation index.
05/26/2023, 8:44 am EDT
NOAA issued their 2023 seasonal hurricane forecast yesterday (12-17 storms, 5-9 hurricanes, and 1-4 major hurricanes) which was slightly higher than the consensus of seasonal forecasts issued by Colorado State University, Tropical Storm Risk U.K., and Climate Impact Company. Meanwhile an area of possible development has developed off the Southeast Coast for the early weekend.
05/24/2023, 7:58 am EDT
So far, May 2023 has produced below normal zonal and meridional wind speeds across the U.S. particularly across most of the SPP and ERCOT regions of the Central U.S. Causal to the lack of wind is a large area of high pressure over Western Canada extending to the Great Plains and generally weak low pressure in the far southern States to the East Coast.
05/22/2023, 6:09 am EDT
What is the North Atlantic warm hole (NAWH)? Since 2013, the NAWH pattern has strengthened due to accelerated presence of freshwater snow and ice melt from Northeast Canada and Greenland deposited into the Labrador Sea and eastward/southward most noticeable during MAY/JUN but generally present most of the year. During the past 10 years, the cool ocean waters have caused a cooling of the middle troposphere where a semi-permanent upper trough has generated. During the past 30 days, the trough has amplified off the Southeast Canada Coast and extended into the East U.S. bringing a cool late spring.
05/18/2023, 12:11 pm EDT
Marine Heat Wave Shifts West, Contributes to “Apocalyptic” Italy/Southeast Europe Rains Past Few Days
Once again, marine heat waves are in the news as a catalyst to a major weather event. A large MHW off the Northwest Africa/Southwest Europe coast the past few months shifted westward the past couple weeks and the latent heat loss where the warm SSTA pattern was previously located (central/west Mediterranean Sea) deepened an upper-level storm that caused "apocalyptic" rains from Italy to Bosnia the past few days.
Climate Impact Company Chart of the Day
Chilly Regimes Increasing a Freeze Risk to the Brazil Coffee-Growing Areas During Mid-Winter Not Tied to ENSO Since 1995Since 1995, chilly temperature regimes in or very near the Brazil coffee growing areas during mid-winter (July) have occurred in 11 years. The average temperature anomaly of the 11 analog years is coolest just west of the coffee growing areas.
Climate Impact Company Climate Research
Climate/Agriculture Research: Status of Global Marine Heat Waves (and Warm Holes)Marine heat waves (MHW’s) and oceanic warm holes are not new. However, their presence, intensity, and persistence has intensified during the past 10 years. Currently, Climate Impact Company (and other government/research centers in the U.S. and New Zealand) are monitoring 5 MHWs.