Atmospheric River Nears Landfall, Bringing Heavy Snowfall

One more “atmospheric river” climate occasion is nearing landfall over the west coast, set to deliver heavy snow and rain.

It would make landfall afterward February 27 and convey heavy snowfall over the Cascades and Sierra Nevada, an replace from the Middle for Western Climate and Water Extremes reported.

The climate occasion is ready to final for a number of days, and western states ought to brace for heavy rainfall that’s prone to final till March 1.

Atmospheric rivers are flows of concentrated, tropical moisture that journey via the environment. They transport moisture from the equator in direction of the North and South poles and, when they’re launched, trigger a deluge of rainfall and snow.

Lake Tahoe with the snowcapped Sierra Nevada mountain vary within the background. Atmospheric rivers and a low strain system are set to extend snowfall within the mountain vary in coming days.


This isn’t the one one the West has seen in current weeks. California has been topic to many because the begin of this month, which prompted extreme flooding and landslides, notably within the south of the state.

The middle studies that this atmospheric river will probably be accompanied by a low-pressure system, which causes winds and cloudy skies. This can seemingly lengthen the climate occasion for some days, notably over California, with the state vulnerable to heavy rainfall till March 3.

There can even be “vital precipitation” alongside the Washington and Oregon coasts over the following seven days, the NWS Climate Prediction Middle studies, in addition to the Sierra Nevada and the Cascades mountain vary.

Each ranges have a excessive probability of snowfall reaching over 36 inches. Within the Sierra Nevada, the Middle for Western Climate and Water Extremes is predicting “excessive chances of serious snowfall.”

Because the atmospheric river strikes down the coast of the western states, there’s a probability of flooding, with the middle advising residents to “keep alert” for official Nationwide Climate Service forecasts and climate warnings over the approaching days.

If the forecasts are proper about heavy snowfall within the mountains, it would imply a wholesome build-up of snowpack that can soften within the hotter months and feed into the lakes, which is nice information for western rivers and reservoirs.

Final yr, a collection of atmospheric rivers drastically improved their drought standing. The storms helped construct above common snowpack ranges, which melted within the spring and replenished the area’s reservoirs and rivers, which had been dealing with a extreme water scarcity.

California’s snowpack buildup has already drastically improved with the current storms, however it’s not having fairly the identical impact.

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