Cyclone phase evolution: Analyses & Forecasts

This page presents historical, analyzed (current), and model-forecast cyclone phase diagrams for northwestern hemisphere cyclones
with the goals of improved structural forecasting, structural transition (subtropical/tropical/extratropical), cyclogenesis, and providing measures of structural predictability.

Please note that these products are experimental and not official forecasts. For official forecasts in the U.S., please refer to the National Weather Service and National Hurricane Center.

To the right are the most recently picked interesting diagrams. In this case, the UKMET analysis of extratropical transition of Ignacio and "landfall" near the Alaskan border as a weakening extratropical storm.

Latest deterministic model output:
CMC: 2015113012 GFS: 2015113012
NAVGEM: 2015113012 UKM: 2015113012

Current/recent GFDL model output:
No recent GFDL runs

Current/recent NCEP HWRF model output:

Current/recent CIRA/NESDIS AMSU based diagrams:
sh042016:2015113018 sh962016:2015113018

Ensemble output:
Latest deterministic intercomparison: [ 2015113012 | 2015113006 ]

Latest CMC Ensemble: [ 2015113000 | 2015112912 ]

Latest GFS Ensemble: [ 2015113012 | 2015113000 ]

Latest NGP Ensemble: [ 2015113012 | 2015113000 ]

Latest CMC+GFS+NGP Ensemble: [ 2015113000 | 2015112912 ]

Example phase diagrams from past events: [View]

Help/Docs: [ Docs | AMS02-ppt | AMS02Talk-ppt ]

Page created and maintained by:

Robert Hart
Florida State University

Jenni Evans
Penn State University

This page last updated: Mon Nov 30 22:23:09 UTC 2015