Coastal Effects

CIRA ALPW Comparison for Two Northeast US Heavy Precipitation Events

By Sheldon Kusselson ALPW loop of 2019 event: ALPW loop of 2017 event:

Coastal Effects Cyclogenesis Heavy Rain and Flooding Issues Hydrology POES Satellites

Island / coastal effects in the northeast on 19 June 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. A loop of GOES-16 visible (0.64 micron) imagery on 19 June 2017 over the northeast: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/19jun17&loop_speed_ms=80 illustrates the effects Continue Reading

Coastal Effects GOES R

Advected LPW product in identifying circulations in the vertical

On the evening of 21 February 2017, a well defined mid-level circulation moved into the San Francisco Bay region.  This circulation was responsible for a region of convection in the vicinity, mostly showers but a few thunderstorms with some low-level rotation. The mid-level circulation can be readily identified in the 700-500 mb layer of the Continue Reading

Coastal Effects Convection Satellites

Puget Sound Convergence Zone in Action

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

MODIS Longwave channel difference of Gulf Stream and Labrador currents

Jeff Braun and Louie Grasso Figures 1-4 show Modis images at 3.9, 8.53, 11.02, and 12.03 µm, respectively at 1825 UTC on 6 April 2010. Off the east coast of the United States, two ocean currents are evident in the imagery: The cool, southward flowing, Labrador current and the warm, northerly flowing, Gulf Stream. All Continue Reading

Coastal Effects GOES-R Proving Ground MODIS Satellites

Phenomena along the California coast

Jeff Braun Various phenomena along the California coastline evident in GOES visible imagery are examined. The first example is from 26 July 2006. Click on the 18:00 UTC surface analysis below: A low over the interior of California exists, where temperatures are hot (90’s). Offshore and to the northwest is a high pressure system, leading Continue Reading

Coastal Effects