Orographic Effects

Orographic cirrus / lee wave clouds as observed from GOES-16

by Dan Bikos on November 22nd, 2017

The GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing.  Users bear all responsibility for inspecting the data prior to use and for the manner in which the data are utilized. On 22 November 2017, lee wave clouds (also referred to as orographic cirrus) developed downwind of various mountain ranges Continue Reading

GOES R Orographic Effects

GOES-16 perspective of Leeside cold front and associated gravity waves – 30 October 2017

by Dan Bikos on October 30th, 2017

The GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing.  Users bear all responsibility for inspecting the data prior to use and for the manner in which the data are utilized. On 30 October 2017 GOES-16 observed a leeside cold front with associated gravity waves in the vicinity of eastern Continue Reading

GOES R Orographic Effects

Interesting features along the west coast on 15 August 2017

by Dan Bikos on August 15th, 2017

The GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing.  Users bear all responsibility for inspecting the data prior to use and for the manner in which the data are utilized. The following loop is the GOES-16 visible (0.64 micron) band centered along the California / Oregon border on the Continue Reading

Aviation Weather Ceilings Fog Island Effects Orographic Effects Visibility

24 March 2017 fog / low stratus in the West

by Dan Bikos on March 24th, 2017

The GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing.  Users bear all responsibility for inspecting the data prior to use and for the manner in which the data are utilized. On the morning of 24 March 2017, there were some interesting fog / low stratus events in the West. Continue Reading

Ceilings Fog GOES R Orographic Effects Visibility

GOES-16 Mountain Wave clouds on 3 March 2017

by Dan Bikos on March 3rd, 2017

The GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing.  Users bear all responsibility for inspecting the data prior to use and for the manner in which the data are utilized. Mountain wave (orographic cirrus) clouds were observed in the Rocky Mountain region on the morning of 3 March 2017 Continue Reading

Orographic Effects

Puget Sound Convergence Zone in Action

by on January 17th, 2012

By J.Braun An impressive overrunning snow event is on tap for much of western Washington Tuesday, January 17th with bands of snow showers moving inland across northwestern Washington.  The (mainly) snow shower activity has increased in coverage as mid level a disturbance rotates around a weak low west of Cape Flattery.  In addition to this, Continue Reading

Coastal Effects Orographic Effects Winter Weather