East Pacific:
Hurricane Hilary - 65 knots, Tropical Storm Irwin - 50 knots, Low (Greg) - 25 knots

Pressure Diagram of the National Hurricane Center Models for Low (Greg) - 2017

Early cycle model data on this page was valid as of: Thursday, July 27, 2017 18:00 Z
Late cycle and other previous models were valid as of: Thursday, July 27, 2017 12:00 Z
It is important that you know what each hurricane model is for before looking at our wind speed and pressure diagrams. Some models do not accurately forecast intensity and in this product these models are alongside ones that do attempt to accurately forecast intensity which can lead to very false conclusions. For example, GFS ensemble members should not be directly compared to a model like the HWRF when it comes to intensity.

This page contains global model data downloaded directly from the European Centre for Medium-Range Weather Forecasts. (ECMWF) The publicly accessible (WMO Essential) tropical cyclone trajectory data is processed by our site and integrated into the data on this page using the model identifiers ECMO, ECME and EEXX, where XX represents the ensemble member number. The ECMWF data available through the Global Telecommunications System (GTS) is not included for a particular run on our site if similar ECMWF data for that run exists in the main model file that our site processes from NOAA.

Release Date:


Late Cycle Models

Initialization for Thursday, July 27, 2017 12:00 Z



The diagram could not be displayed. The diagram requires the use of Adobe Flash and JavaScript in order to be displayed.