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After the Storm: A Symposium co-hosted by PNW-ISA and UW Botanic Gardens

December 5, 2018 @ 8:30 am - 4:00 pm
CEUs: 6.0 (see complete details below)


Symposium: 8:30am-4:00pm. Reception to follow: 4:00-6:00pm

In-Person Location: NHS Hall, Center for Urban Horticulture (3501 NE 41st St., Seattle, WA 98105)

Online Location: This symposium is available for remote attendance online through the University of Washington. Gather a group at work and watch together. Every person taking the online workshop will need to register to receive CEUs.


After the Storm, a symposium co-hosted by PNW-ISA and University of Washington Botanic Gardens, will feature six case studies presented by experienced arborists and allied professionals who work with trees and storms. Case studies of best practices and lessons learned related to storm preparation, management, and post-storm prioritization will be presented. Presenters come from a variety of perspectives including; municipalities, field arborists, consulting arborists, utilities, and allied professionals.


  • 8:30-8:45: Welcome & Introduction
  • 8:45-9:45: Learning from the Storm
    • Evan Sussman – Owner, Sonshine Tree Care, Stanwood, WA
  • 9:45-10:00: Break
  • 10:00-11:00: Subtle to Severe: Municipal Storm Preparation and Response
    • Larry Maginnis – Operations Supervisor - City of Portland Urban Forestry Division
  • 11:00-12:00: Managing Risk While Stabilizing Failed Trees
    • Allen Taylor – Owner, Conservation Tree Care
  • 12:00-12:45: Lunch
  • 12:45-1:45: The 2015 Summer Storm in Surrey, BC
    • Robin Landucci – Urban Forestry Manager, City of Surrey, BC
  • 1:45-2:45: Disputing Common Tree Failure Beliefs
    • Chris Rippey – Co-Creator of the PNW Tree Failure Database, Owner of Rippey Arboriculture, LLC., and Tree Trimmer at Seattle Parks and Rec
  • 2:45-3:00: Break
  • 3:00-4:00: Planning for Storm Response & Recovery
    • Micki McNaughton – Owner, Arborea, LLC
  • 4:00-6:00 Reception

FULL AGENDA - After the Storm


  • International Society of Arboriculture: 6.0 ALMT / 0.5 B-P, 5.5 B-M
  • Association of Professional Landscape Designers: 6.0 APLD
  • Landscape Architect Continuing Education System: 6.25 LA CES


Evan Sussman is the owner and lead arborist of Sonshine Tree Care in Stanwood, WA. Evan is actively involved in the furthering of the arboriculture profession in our Chapter through community engagement, as a professional tree worker instructor, and in the development of apprenticeship programs. Evan is currently serving on the PNW-ISA board as the Liaison to the TREE Fund (Tree Research and Education Endowment Fund).

Larry Maginnis is the Operations Supervisor for the City of Portland’s Urban Forestry Division.  His responsibilities include the planning and supervision of all field arborists to ensure the City’s urban forest is maintained and in full compliance of the City codes and ordinances. Prior to his position in Portland, Mr. Maginnis was the Urban Forestry Program Manager for the University of Texas and the City Forester of Missoula, Montana.

After growing up in New Hampshire and attending the University of Vermont School of Forestry, Allen Taylor moved to Washington in search of big trees and tall mountains. His passion for climbing made Arboriculture a natural fit. He has been working in commercial operations arboriculture for his entire career and has recently transitioned to spending part of his time working as a consultant and business manager.

Rob Landucci has more than 10 years of experience overseeing the management of parks and urban forests in Surrey and Port Coquitlam. A Natural Resource Professional with the Association of BC Forest Professionals, his work experience includes tree risk assessments, habitat restoration, forest health management and wildlife research. Rob has a Bachelor of Science (Natural Resource Conservation) from the University of British Columbia, is an ISA Certified Arborist and Qualified Tree Risk Assessor. He is on the Urban Forestry Committee with the Association of BC Forest Professionals.

Chris Rippey is a third-generation arborist from Palo Alto, CA. He has pruned, removed or inspected thousands of trees during his 20+ years in the arboriculture industry. He loves to share the knowledge that he has gained from his years of touching trees.

Micki McNaughton is an ISA Certified Arborist and Municipal Specialist, and owns Arborea, LLC, an urban forestry consulting business that focuses on helping communities realize the maximum potential from their urban trees through planning and program development. Micki is a member of the International Society of Arboriculture (ISA), the Pacific Northwest Chapter of the ISA (PNW-ISA), the Society of Municipal Arborists (SMA), and the Planning Association of Washington (PAW). She serves on the Board of Directors of PNW-ISA and PAW.

Refund Policy

  • Cancellations made at least 10 days prior to the event will be refunded at 100%.
  • Cancellations made within 5-9 days of the event will be refunded at 75%.
  • Cancellations made within 1-4 days of the event will be refunded at 50%.
  • Refunds will not be made available for no-shows.

Late Registration

  • Participants are expected to enroll prior to the registration deadline.
  • Participants can register at the door of the event only if space is available. Individuals will need to pack their own lunch.
  • Late registration is possible on a space available basis. You can contact our office at (800) 335-4391. There may, or may not be, room available for those who show up without registering ahead of time for the workshop. We encourage you to register for the workshop in advance.

Allied Professionals are members of allied organizations. See our list of qualifying organizations.


Online & Seattle, WA
Online & Seattle, WA,