Standout climate signals for during and just beyond mid-month include the arctic oscillation which is moderate-to-strong positive and represents evolution of the polar vortex.

At 5AM EDT, Isaias became the season’s 9th tropical storm. However, this time, Isaias will be able to take advantage of the very warm Gulf of America surface and continue to intensify rapidly into a hurricane by tonight.

Anticipated wetter pattern for Argentina to Southeast Brazil is evolving. Wet weather is enhanced in Northwest Argentina, Southeast Brazil, and parts of east and south Argentina during the past week. Wetter soils are vividly indicated Argentina to Southeast Brazil.

A new tropical disturbance is forming in the Bay of Campeche. NOAA/NHC indicates 30% chance of tropical cyclone formation within the next 48 hours but has increased risk to 70% after 2 days.