Weather Brains

SnowBrains Forecast: Quick Sierra Powder Shot Monday-Tuesday, Spring Corn Follows

This forecast was created at 7:30 a.m. PST on Monday, May 12. A late-season spring storm brushes the Sierra early in the week with modest, moderate-density snow before high pressure restores dry, warmer conditions through Friday and leaves only a slim chance of a weak follow-up system next weekend. Totals of roughly 4″-7″ around Tahoe and lighter amounts further south […]
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NOAA May 2025 ENSO Update: Next Winter Likely ENSO-Neutral, Although La Niña a Possibility

This post first appeared on the climate.gov ENSO blog.​ The tropical Pacific is in ENSO-neutral conditions, and neutral is expected to continue through the Northern Hemisphere summer. Neutral is also the most likely outcome for the fall and winter, although chances of La Niña are a close second. Today, as your trusty representative of the ENSO forecast team, I’ll cover […]
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SnowBrains Forecast: First Major Dump of the Season for South America

Central Chile and northern Patagonia line up a concise 3-day powder window, with the heaviest, driest hits focused on Las Leñas and Nevados de Chillán while the Tres Valles resorts score a solid refresher and lower-latitude mountains pick up smaller, wetter shots. After a slow start on Tuesday, snowfall intensity peaks late Wednesday into early Thursday, then tapers with a […]
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[VIDEO] Chris Tomer’s Mountain Weather Update 5/6: May Storm to Bring Feet of Snow to Colorado and New Mexico

Image: Chris Tomer

Denver-based meteorologist Chris Tomer is one of the most accurate forecasters we know. Check out and subscribe to his mountain weather forecast videos to see where North America will get the most snow. “Panhandle Hooker storm system en route 5/5-5/7 with feet of accumulation above 9,000ft in CO & NM. Deep CO upslope favors Divide-East locations. Snow levels PM 5/6 […]
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SnowBrains Forecast: 15 Inches of Snow For Colorado This Week

Snow returns to Colorado’s high peaks beginning Sunday night, peaking on Tuesday with double-digit totals likely at Loveland, Monarch, and several Front Range and Southern resorts, before tapering to scattered light showers by Thursday and a warm, mostly dry pattern late week. A spring storm lifts moisture from the southwest, gradually lowers snow levels from around 10,000 feet to near […]
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SnowBrains Forecast: Powder Day Incoming for Mammoth This Weekend

A quick-hitting convective wave Saturday will freshen the central Sierra with 3″-7″ of new snow above 8,000 feet at Mammoth, after which high pressure locks in a dry, steadily warming pattern that persists well into next week. The brief burst will feature dense midday flakes transitioning to lighter powder Saturday night, while Sunday turns breezy and cooler before temperatures rebound […]
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SnowBrains Forecast: First Snow of the Season for New Zealand – Up to 20 Inches Expected

Early season southerlies will bury New Zealand’s central-eastern Southern Alps in the first meaningful dump of 2025, while a weaker, wetter pulse brushes the North Island—excellent news for base-building but with quality that trends from dense to drier as temperatures fall then rebound. A compact low sliding up the South Island Wednesday night ignites a one-to-two-foot event for Canterbury fields, […]
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SnowBrains Forecast: Active Pattern Keeps Snow Dumping in Colorado for the Next 10 Days

Colorado’s spring keeps the powder skis handy this week. A quick mid-week refresher drops light, high-quality snow tonight into Thursday, a brief lull follows, and then a slow-moving low spins up from Sunday through late next week, driving the deepest totals and the best chance for several sleeper powder mornings—especially across the Front Range giants. Wednesday night-Thursday wave delivers a […]
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