Tag Archives: tropical storm


Remnants of Dorian Mostly Gone – New Invest in East Pacific

The remnants of Dorian continue to fade in the Atlantic. Very strong upper-level winds have split the wave in half, separating the former mid-level center from the area of lower surface pressures. The result: a weakening tropical wave with little chance for redevelopment. The NHC forecast calls for a 20% chance of tropical cyclone formation, […]

Invest 99E in the East Pacific

Water Vapor Image of TS Dorian

Weaking Dorian Losing Vital Moisture Feed

Water vapor satellite imagery from this morning showing ‪‎Dorian‬ becoming cut off from the moisture feed flowing in from the south (pink arrows) as more and more of the circulation is getting surrounded by dry air (yellow arrows). This interruption in moisture return from the south is likely contributing to the weakening we’ve seen since […]


Why Dalila May Be Moving South Tomorrow

For a few days now many of the global models have been showing tropical storm Dalila moving southwest (even though forecasts have showing it move to the west). Why? A large tropical disturbance is developing in the far eastern Pacific. The environmental flow around this new system (which should be an Invest on Tuesday), combined […]

Tropical Storm Dalila and a New Disturbance in the East Pacific

Tropical Depression 4-E Forms in the East Pacific

Tropical Depression 4-E has formed in the eastern Pacific. Maximum sustained winds are 35MPH, but some strengthening is expected and it could be a tropical storm by Sunday. Here is an initial look at the track guidance. Interesting loop from the GFDL ensemble mean, the GFS and GFS ensembles are in pretty good agreement – […]

Tropical Depression Four in the Eastern Pacific