Industrial Plants Are Producing Man-Made Snow in Nebraska
It is the time of year for snow to be falling in Nebraska, and indeed the conditions are right for moisture to fall from the sky as snow. However, there are no suitable weather systems moving through the state. No matter — Nebraskans are making their own weather today thanks to a few industrial plants, which are causing a dense band of snowfall.
Residents of eastern Nebraska started to suspect something was amiss on Monday when they were treated to an unexpected burst of snow. A full two inches of the stuff fell in the space of a few hours, and the snow returned on Tuesday morning. There weren’t any lingering weather systems, so what gives?
The National Weather Service (NWS) in Omaha sent a tweet late on Monday morning suggesting that the unexpected snowfall could be thanks to the steam output from power plants in Norfolk, Nebraska. A few hours later, the account confirmed this was man-made snow, but said it was from “plants” rather than power plants specifically. Residents of the area have pointed to a pair of facilities near Norfolk: a steel manufacturer and an ethanol processing facility. One Twitter user wondered if the steam could be from a nuclear power plant and if said steam would be radioactive. The NWS assured him it was not nuclear steam. That’s a relief!
The NWS compared the phenomenon to lake-effect snow. This process, which is familiar to anyone living near the Great Lakes, involves cold air moving across the surface of a warmer body of water. Moisture from the lake gets swept up by the cold air, eventually falling as snow.
It's been confirmed that this snow band is originating from 2 plants in Norfolk. The steam produced there is essentially acting to add moisture and warmth to the clouds creating the snow. Had reports of large flake and up to 1in. If you live in that area how much have you seen? pic.twitter.com/mSiVcj6uH2
— NWS Omaha (@NWSOmaha) December 3, 2018
In this case, the NWS says there was a temperature inversion in the atmosphere over Nebraska — a layer of warm air above the cold ground-level air bottled up the steam. With temperatures in the mid-20s, the moisture in the steam became snow and drifted down in a swath covering about 100 miles. The direction of the snow moved eastward across the state on Tuesday, reaching the Omaha area.
This is not the first instance of perfect atmospheric conditions causing man-made snow, but we rarely get such a clean radar image of the event. So, this is not a viable way to ensure a white Christmas, but it might provide some overtime for snowplow drivers in Nebraska.
Top image credit: National Weather Service
Continue reading
Astronomers Spot Earth-Sized Rogue Planet Wandering the Galaxy
Astronomers have identified more than 4,000 exoplanets orbiting other stars but just a few "rogue planets" wandering the galaxy without a star to call home. A new study claims to have spotted one of these worlds, and it may be a small, rocky world like Earth.
Scientists Find Planet Where It Rains Molten Rock
The ground is rock, the seas are rock, and yes, even the air is rock.
AMD Has No Near-Term Plan For Hybrid Big, Little Cores on Same Silicon
AMD has no plans to build a hybrid CPU with big and little cores any time in the near future, but the company continues to evaluate the concept.
Look Up: You Can See All the Planets in Our Solar System Tonight
You've probably seen diagrams of the solar system that place the planets in nice, orderly lines, but the truth is they're often on the other side of the sun from Earth. We happen to be going through a period during which all the planets are visible. You just have to know where and when to look.