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Quarterly Newsletter

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February 24, 2022

The Marshall Fire: A NOAA story map

The historic Marshall firestorm destroyed the homes of several GSL staff. This story map by NOAA Boulder illustrates some of the ways NOAA responds when disaster strikes. The story shows how the GSL- developed HRRR model accurately predicted extreme winds and was critical in the decision-making of the NOAA National Weather Service in Boulder.

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February 24, 2022

GSL experimental model simulates Hunga Tonga–Hunga Ha‘apai eruption

On January 15, 2022 a powerful underwater volcanic eruption blanketed the island nation of Tonga with ash, but not before it also rocketed ash, dust, and other particles high into the atmosphere. Volcanic eruptions inject sulfur gases and ash into the troposphere and sometimes the stratosphere, and are one of the most important drivers of clima...

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February 02, 2022

GSL releases Hydrology Hazard Simplification Phase I to NWS operations

The GSL-developed Hazard Services “Hazard Simplification” Phase I messaging and consolidation process for hydrology hazards was activated at all NWS sites nationwide in November 2021 in collaboration with the NWS. Phase I includes updated messaging for river flooding, flash flooding, and area flooding. The changes include:“What/Where/When” forma...

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January 18, 2022

Evaluating the Economic Impacts of Improvements to Weather Models

You can only have an economic impact if the new version results in a different decision. Weather forecasts play an essential role in how different sectors plan and make decisions. The energy community benefits from good wind forecasts. A worker saves the company time by planning their commute around weather that might make them late for work. ...

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January 18, 2022

Blog Post: Untangling Positional and Structural Forecast Errors

Fig. 1. Schematic for total forecast error decomposition: (1) Spatially align a forecast with the verifying analysis field; (2) Smooth original and aligned forecast and analysis to remove unpredictable smaller scales; (3) Decompose total error into orthogonal (right angle) components of (i) large scale positional error, (ii) large scale structur...

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January 12, 2022

Air pollution from wildfires, rising heat affected two-thirds of U.S. West

On a single day in 2020, 43 million people in the region experienced harmful levels of air pollution. Large wildfires and severe heat events are happening more often at the same time, worsening air pollution across the western United States, according to a new study led by Washington State University, with CIRES and NOAA’s Global Systems Lab...

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