Sunday, November 15, 2009

Thank You El Nino

3:00 PM SUNDAY, 11/15/09  Credit for the brief warm-up after last week's coastal smackdown can be attributed directly to your old friend El Nino (technically called ENSO- El Nino Southern Oscillation). In a normal situation this time of year, above-normal temperatures on the East Coast would not usually follow an intense and departing surface low pressure system. This time, combination of a re-energized sub-tropical jet with the alleviated bottleneck created by the coastal storm permitted warm, moisture-laden Pacific air to overrun the eastern two-thirds of the U.S. It is no coincidence the source region of this air is located atop Pacific sea surface temperatures running 1.7 to 2.1 degrees C above normal, (28.9 C / 84.0 F). For an excellent visual representation of this, view the current GOES Water Vapor Loop, and you can see the East Pacific Express streaming all way from coastal Mexico to southern Canada.

For any nervous powderhounds out there counting on product delivery by 12/5, be reassured that the projected upper-level pattern shift by end of November appears on schedule. Good things come to those who wait! 

No comments: