Weather

Fishel: Animations from space and the East Coast advantage

WRAL Chief Meteorologist Greg Fishel geeks out with the team this week on the Tech on Tap podcast.

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Greg Fishel
RALEIGH, N.C. — WRAL Chief Meteorologist Greg Fishel geeks out with the team this week on the Tech on Tap podcast, in a discussion that ranges from climate change to hurricanes and tornadoes to advances in forecast technology.
The podcast drops Friday morning, and an extended cut of Greg's interview will post April 27.

So how far out does The Fish feel confident in a weather forecast? In the summer, about seven days.

Given the consistency of summer weather patterns, it's easier to expect and predict sunny and warm, Fishel said, than the variety of weather possible during a North Carolina winter.

"Here on the East Coast, we have a huge advantage. We can get data on about 3,000 miles of observations as a system moves over land before it gets to us," Fishel said.

Communities along the West Coast must rely on sparse data from sensors mounted on ships and buoys in the Pacific Ocean.

"The density of those observations is nowhere near what it is over a landmass," he said.

This is a medium-close view of the southeastern U.S. and the Caribbean, and highlights nicely just how detailed the new images can be (keeping in mind that this is the view from 22,000 miles away!).

Fishel pointed to the GOES-16, the latest in the Geostationary Operational Environmental Satellite Program (GOES), a joint effort of NASA and the National Oceanic and Atmospheric Administration (NOAA), as the most exciting new development in forecast technology.

"The neat thing about these satellites is that they rotate at about the same speed as the Earth does, so relative to a given spot on the Earth, they remain stationary," Fishel said. "So you can take pictures as frequently as you want, because you're always looking at exactly the same area, as opposed to a polar-orbiting satellite, that only comes over the same spot, say, once a day."

The additional images create an almost-animated look at the evolution and devolution of weather systems. "It's unbelievable," Fishel said. "It's like satellite imagery in forecasting has now gone HD."

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