06/13/2021, 8:01 am EDT

California/Southwest U.S. & Great Plains Super Heat Event This Week

A high-pressure cell over the Southwest U.S. this week strengthens to rare 6000 DM at 500 MB propelling widespread historic heat across the Southwest U.S., California and pulsing into the Great Plains and reaching western Texas by next weekend. Searing and extremely dangerous heat is caused by this super high-pressure cell.
06/10/2021, 1:31 pm EDT

Main Development Region for North Atlantic hurricanes cools at rapid pace in May!

Between the eastern entrance to the Caribbean Sea and off the northwest coast of Africa between 5N and 23N is where the tropical North Atlantic (TNA) index is calculated. The TNA is a simple SSTA value for this region which is also known as the main development region (MDR) for North Atlantic hurricanes. In May, the TNA index declined -0.50 to -0.18, the strongest negative monthly drop in the 1950-2021 climatology.
06/09/2021, 10:58 am EDT

Daily Feature: May 2021 U.S. Climate Rankings

U.S. rankings for temperature and precipitation were almost exactly in the middle of the 127-year climatology. However, as is often the case, normal (nationally) can be the average of extremes.
06/08/2021, 9:04 am EDT

Early June U.S. Rainfall Deficits Increasing Rapidly!

Rainfall required to neutralize dry Palmer Drought Severity Index (PDSI) has increased dramatically during early June in the East U.S. Already steep departures across the West U.S. have also worsened. The California and Washington/Oregon (along the Cascades) rainfall deficits are off-the-chart >15 in.