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.
Note: ECMWF analyses are provided by TIGGE and delayed by 2 days by ECMWF.
To the right are the most recently picked interesting cyclone phase diagrams.
Latest deterministic model output:
| CMC: | 2010020912 | ECMWF: | 2009112100 |
| GFS: | 2010020912 | NGP: | 2010020912 |
| UKM: | 2010020912 |
Current/recent GFDL model output:
| No recent GFDL runs |
Current/recent HWRF model output:
| No recent HWRF runs |
Experimental current/recent CIRA/NESDIS AMSU based diagrams:
Ensemble output:
Latest deterministic model intercomparison: [
2010020912 |
2010020906 ]
Latest CMC Ensemble intercomparison: [ 2010020900 | 2010020812 ]
Latest GFS Ensemble intercomparison: [ 2010020912 | 2010020900 ]
Latest CMC+GFS Ensemble intercomparison: [ 2010020912 | 2010020900 ]
Example phase diagrams from past events: [View]
Help/Docs: [ Docs | AMS02-ppt | AMS02Talk-ppt ]