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Eurasian Snow Cover Variability Links with Stratosphere-Troposphere Coupling and its Impacts on Alaskan Weather

Using both observational analysis and novel numerical modeling experiments, we showed that autumn snow cover extent and Arctic sea ice trends can force observed increasing trends in stratospheric polar vortex stretching and surface impacts. Our analysis provides a dynamical link between rapid Arctic change and extreme winter weather across large regions of the Northern Hemisphere.

VAWS: Second Generation CMORPH for Real-Time Monitoring

The most important purpose of this webinar is to get feedback from our colleagues in the field offices on how we may improve the CMORPH2 to better serve operational applications in weather, water, and climate.

Laying the Foundation for Resilient Coastal Communities

Speaker: Rich Buzard The UAF Arctic Coastal Geoscience Lab uses a combination of remote sensing, ground and aerial surveys and citizen science to measure erosion and flooding in several Alaskan…

Southeast Alaska Drought

Join us to review the SE Alaska Drought Report. We'll discuss drought history, causes, and impacts. Select community perspectives will be highlighted.

Arctic Report Card: Background and Key Finding

Speakers: Rick Thoman (ACCAP Climate Specialist), John Walsh (Climate Scientist) and Robb Kaler (USFW Migratory Bird Management) During this month's VAWS webinar, we will review the process used to create…

Moose on the Move: Science to Prevent Moose-Vehicle Collisions in a Changing Climate

This webinar will draw a link between seasonal changes in driving difficulty and moose movements that lead to a predictable spike in moose-vehicle collisions during winter. We can use this knowledge to predict the times and places where collision risk is highest, and ultimately reduce avoidable human and animal suffering.

March 2023 NWS Alaska Climate Outlook Briefing

Speaker: Rick Thoman, ACCAP Climate Specialist We will review recent and current climate conditions around Alaska, discuss forecast tools, and finish up with the Climate Prediction Center’s forecast for April…

VAWS: Predicting pyroCumulonimbus (pyroCb) events through remote sensing resources in support of National Weather Service and firefighting agencies

This presentation will examine the efficacy of NUCAPS-derived near-surface lapse rate and vapor pressure deficit, mid-troposphere moisture content, and instability parameters to facilitate early warning of pyroCb development. NRL-MMD is developing fire pixel clustering and NUCAPS filtering techniques to focus on specific wildfire events that are likely to produce pyroCb activity. The overarching objective is to provide weather forecasters and firefighting agencies with a potentially invaluable resource related to hazards ensuing from convective cloud development over active wildfires.

Alaska Spring River Breakup

Speakers: Celine van Breukelen (Alaska-Pacific River Forecast Center) and Rick Thoman (Alaska Center for Climate Assessment and Policy) There’s a deep snowpack across Alaska as spring melt approaches. Celine van…

April 2023 NWS Climate Outlook Briefing

Speaker: Rick Thoman, Alaska Center for Climate Assessment and Policy We will review recent and current climate conditions around Alaska, highlight some forecast tools and finish up with the Climate…

Green-up in the Alaska Boreal Forest

Speakers: Rick Thoman (Alaska Center for Climate Assessment and Policy) and Jan Dawe (OneTree) Green-up, that time when leaves burst forth from Alaska’s deciduous trees, has important implications for the…

Paralytic Shellfish Poisoning in Alaska

Speaker: Bruce Wright, Knik Tribe Chief Scientist In Alaska, paralytic shellfish poisoning (PSP) is caused by toxins (PSTs) produced by the microscopic marine dinoflagellate Alexandrium catenella. PSP is usually associated with…

May 2023 NWS Alaska Climate Outlook Briefing

Speaker: Rick Thoman, Alaska Center for Climate Assessment and Policy We will review recent and current climate conditions around Alaska, review some forecast tools, and finish up with the Climate…

June 2023 NWS Alaska Climate Outlook Briefing

Speaker: Rick Thoman, Alaska Center for Climate Assessment and Policy. We will review recent and current climate conditions around Alaska, review some forecast tools, and finish up with the Climate…

July 2023 NWS Alaska Climate Outlook Briefing

Speaker: Rick Thoman, Alaska Center for Climate Assessment and Policy. We will review recent and current climate conditions around Alaska, discuss some forecasting tools and finish up with the Climate…

August 2023 NWS Alaska Climate Outlook Briefing

Speaker: Rick Thoman, Alaska Center for Climate Assessment and Policy. We will review recent and current climate conditions around Alaska, discuss some forecasting tools and finish up with the Climate…

Wildfire and Invasive Plants in Alaska’s Boreal Forest

Speakers: Katie Spellman, Christa Mulder, and Taylor Seitz (University of Alaska Fairbanks) A warmer climate, increased human disturbance and transport, increased propagule pressure from growing non-native plant populations, and increased…

September 2023 NWS Alaska Climate Outlook Briefing

Speaker: Rick Thoman, ACCAP Climate Specialist. We will review recent and current climate conditions around Alaska, discuss some forecasting tools, and finish up with the Climate Prediction Center’s forecast for…

El Niño: What is it and Why it Matters for Alaska

Speakers: Scott Handel (NOAA Climate Prediction Center) & Rick Thoman (Alaska Center for Climate Assessment and Policy). El Niño is back and is making news. Beyond the headlines, what does…

VAWS: NOAA Satellite Snowfall Rate Product for Nowcasting

Speaker: Dr. Huan Meng, NOAA/NESDIS/Center for Satellite Applications and Research (STAR) The NOAA/NESDIS operational snowfall rate (SFR) product is derived from a constellation of polar-orbiting satellites. Recent advancements have substantially…

October 2023 NWS Alaska Climate Outlook Briefing

Speaker: Rick Thoman, ACCAP Climate Specialist. We will review recent and current climate conditions around Alaska, discuss some forecasting tools, and finish up with the Climate Prediction Center’s forecast for…

November 2023 NWS Alaska Climate Outlook Briefing

Speaker: Rick Thoman, Alaska Center for Climate Assessment and Policy We will review recent and current climate conditions around Alaska, discuss some forecasting tools, and finish up with the Climate…

The 2023 Wildfire Season in the North: A Tale of Two Extremes

Speakers: Speakers: Piyush Jain (Natural Resources Canada) and Rick Thoman (Alaska Center for Climate Assessment and Policy) In 2023, Canada experienced the worst wildfire season on record, including record high…

December 2024 NWS Alaska Climate Outlook Briefing

Speaker: Rick Thoman, Alaska Center for Climate Assessment and Policy We will review recent and current climate conditions around Alaska, discuss some forecasting tools, and finish up with the Climate…

Arctic Report Card: Background and Key Findings

Speakers: Rick Thoman (ACCAP), Zack Labe (Princeton University and NOAA GFDL), Erik Schoen (International Arctic Research Center), and Roberta Glenn (Alaska Arctic Observatory and Knowledge Hub) The Arctic Report Card annually updates…

January 2024 NWS Alaska Climate Outlook Briefing

Speaker: Rick Thoman, Alaska Center for Climate Assessment and Policy We will review recent and current climate conditions around Alaska, discuss forecasting tools, and finish up with the Climate Prediction…

February 2024 NWS Alaska Climate Outlook Briefing

Speaker: Rick Thoman, Alaska Center for Climate Assessment and Policy We will review recent and current climate conditions around Alaska, discuss forecasting tools, and finish up with the Climate Prediction…

March 2024 NWS Alaska Climate Outlook Briefing

Speaker: Rick Thoman, Alaska Center for Climate Assessment and Policy. We will review recent and current climate conditions around Alaska, discuss forecasting tools, and finish up with the Climate Prediction…

April 2024 NWS Alaska Climate Outlook Briefing

Speaker: Rick Thoman (Alaska Center for Climate Assessment and Policy). We will review recent and current climate conditions around Alaska, discuss forecasting tools, and finish up with the Climate Prediction…

Alaska Spring River Breakup

Speakers: Celine van Breukelen (Alaska-Pacific River Forecast Center) and Rick Thoman (Alaska Center for Climate Assessment and Policy). There’s a deep snowpack across Alaska as spring melt approaches. Celine van Breukelen with the NWS Alaska-Pacific River Forecast Center (APRFC) will review break-up basics and provide an overview of current conditions. ACCAP Alaska Climate Specialist Rick…

Green-up in the Alaska Boreal Forest

Speakers: Rick Thoman (Alaska Center for Climate Assessment and Policy) and Jan Dawe (OneTree). Green-up, that time when leaves burst forth from Alaska’s deciduous trees, has important implications for the seasonal ecology, society and even meteorology in the state. The unique multi-decadal record of green-up dates in Fairbanks has been used to develop a technique…