NOAA National Weather Service Western Regional Headquarters

Extreme weather impacts our transportation system in many ways. This project focuses on dust storms, particularly as they connect to drought. One goal is to increase the safety of drivers during these events along the Interstate 10 in southwestern New Mexico, where danger from dust storms often occurs. An early warning dust forecast system could minimize the number of vehicle accidents and associated fatalities on New Mexico highways. A neural network camera study indicated an accuracy of 97% and a precision of 94% for dust storm classification utilizing a combination of hue, saturation, and value bands. Researchers successfully acquired additional instrumentation to test a new early warning system that is different from roadway information systems often installed along highways. A Vaisala CL51 ceilometer was purchased by NMDOT in 2019 to sense dust plumes as they form over the dust source areas. The instrument is currently being tested in the laboratory and will be tested outside during Summer 2020 to determine locations where it will be most useful.

This research project was highlighted in the 2019 NOAA Science Report, page 40. https://nrc.noaa.gov/Portals/0/edited%20final%20report.pdf

The Federal Emergency Management Agency (FEMA) plays a critical role in helping land, water, and coastal managers prepare for and respond to diverse weather and climate-driven extreme events. Challenges to accessing, interpreting, and disseminating diverse climate and weather (C&W) information, however, limit FEMA’s use of this information, which can impede pre-positioning resources in high-risk areas, delay advanced warnings, and spur misunderstanding. Strategic partnerships that link information producers and consumers and provide opportunities for co-developing useful C&W information can help agencies like FEMA better fulfill their mandate to safeguard life and property. This project examines the process of developing strategic partnerships, communication strategies, and relevant C&W information to support FEMA’s hazards monitoring efforts in Arizona, Nevada, and California. This study examines the end-to-end process of decision support and will be conducted within a framework advocated by the National Research Council. This incudes: assessing FEMA’s C&W information needs and gaps; coproducing a decision-support tool; and measuring impacts, successes, and limitations of the decision-support tool, engagement process, and partnership. The objectives are to better understand how to provide climate services and develop strategies that seamlessly transition from research to operations, while assessing the role of ‘boundary organizations’ (e.g., RISAs) in developing and mediating partnerships that advance climate services and long-term adaptation efforts.

The decision support tool developed through this project is a climate dashboard. It presents historical hydroclimate risk, current climate conditions, and information about future climate. http://www.climas.arizona.edu/content/fema-dashboard-2

Dust storms in the Southwest U.S. and northern Mexico continue to be a serious health and safety issue. This project aims to locate the sources of dust that have impacted people in southwestern New Mexico, northwestern Chihuahua, and west Texas. Researchers continued surveillance of dust storms and determined the latitude and longitude of each event. To better understand the characteristics of the land surface from where the dust emission occurs, researchers identified more than 2,000 locations responsible for a dust plume as seen in satellite imagery and are in the process of understanding the state-of-the-land surface at those locations. Researchers also have started work to construct a synoptic climatology of these dust storms to increase their ability to forecast these events.

Dust storms in the Southwest United States and northern Mexico continue to create serious health and safety issues. In a continued effort to locate the sources of dust, researchers continued surveillance of dust storms and determined the latitude and longitude of these storms.

Findings: Researchers completed their work designing a method to characterize dust storm events using data from the North American Regional Reanalysis model archive. Based on 60 dust storm events, they generated patterns to compare with non-dust days. While that method proved to be successful in identifying dust storms, it also identified other non-dust events. One particular variable that needs to be included in the future is soil moisture.

For more information documenting dust events that impacted New Mexico, northwestern Chihuahua, and west Texas: (http://nmborderaq.blogspot.com/)

For videos published on the New Mexico Climate Center’s YouTube channel to support outreach on climate, air quality, and projects at the New Mexico Climate Center: (https://www.youtube.com/NMClimate).