1 / 5

January 3-4 2008 West Coast Extratropical Cyclone

January 3-4 2008 West Coast Extratropical Cyclone. Very intense cyclone Had a minimum central pressure of 956 mb. Characterized by warm advection Rapid development of system Criteria met for “meteorological bomb” Strong winds and heavy precipitation.

licia
Download Presentation

January 3-4 2008 West Coast Extratropical Cyclone

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. January 3-4 2008 West Coast Extratropical Cyclone • Very intense cyclone • Had a minimum central pressure of 956 mb. • Characterized by warm advection • Rapid development of system • Criteria met for “meteorological bomb” • Strong winds and heavy precipitation

  2. 24-hour precipitation totals ending 12 UTC 5 Jan 2008

  3. Synoptic Overview • Minimum pressure of 984 mb. 00Z Jan 3 • South of Aleutian Islands • Moved eastward and intensified • Pressure of 954 mb. 12Z Jan 4 • Warm front moving over CA at this time • Strong negative omega values • Large pressure drops and strong wind speed

  4. Note the rapid pressure decrease and corresponding wind increase at KSFO

  5. QG Omega Equation and SPDE • QG Omega Equation • LHS: Omega term • RHS: Differential vorticity advection, temperature advection terms • SPDE • LHS: 1000 mb Relative vorticity tendency • RHS: 500 mb vorticity advection, 1000 mb horizontal temperature advection terms

More Related