The Weather Report gets an upgrade almost 40 years in crafting


January 2018 “Bomb Cyclone”

❝ Weather forecasters need a ton of knowledge and a fair bit of experience with local weather patterns to do their job well. They also need a good forecast model. These computer models take in measurements from weather stations on the ground, satellites in orbit, and balloons in between and then simulate the physics of weather forward in time a few days.

For the first time in about 40 years, the guts of the US model got swapped out for something new… The upgrade brings us a new “Finite-Volume Cubed-Sphere” (or FV3) dynamical core, which simulates the basic atmospheric physics at the heart of this endeavor, a change that has been in the works for a while.

❝ The new core had its origins in simulating atmospheric chemistry but ended up being adapted into other models. A few years ago, it was selected to replace the old core in the US Global Forecast System model. And for more than a year now, the new version of the model has been running in parallel so its results could be compared to the operational model.

RTFA for the details. I’ve mentioned before – and only my opinion – that every science geek is also a weather geek. One of those at-hand examples that fits into everything from work, errands, necessities and recreation. It’s complex; but, understandable, science that affects everyone.

One thought on “The Weather Report gets an upgrade almost 40 years in crafting

  1. Foreknowledge says:

    “Tropical Storm Barry May Form in Gulf of Mexico Later This Week” (Bloomberg July 9, 2019, 5:35 AM MDT) https://www.bloomberg.com/news/articles/2019-07-09/tropical-storm-barry-may-form-in-gulf-of-mexico-later-this-week Storm will track westward through oil, natural gas fields – Heavy rain forecast for eastern Texas, including Houston.
    In the face of a tropical storm, energy companies in the Gulf often will shut in production and evacuate non-essential personnel. The Gulf offshore region accounts for 17% of U.S. crude oil output and 5% of dry natural gas, according to the Energy Information Administration. More than 45% of U.S. refining capacity and 51% of gas processing is along the Gulf coast.
    In addition to the wind threat, the storm may drop as much as 7 inches of rain across a wide area of eastern Texas, including flood-prone Houston, and southern Louisiana in the next seven days, according to the U.S. Weather Prediction Center in College Park, Maryland.
    Before the storm develops, scorching temperatures will grip much of the South from Texas to Alabama, potentially boosting energy demand through the region. Readings may approach the upper 90s Fahrenheit (mid 30s Celsius) with conditions feeling even hotter through Wednesday, the National Weather Service said.

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