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WEATHER for High Sierra Backpackers: REPORTS, FORECASTS, PREDICTIONS, SNOW, ROADS, CONDITIONS sticky icon

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HIGH SIERRA WEATHER RESOURCES

 

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Night & Day California RAMMB Last 2.5 hours

West Coast RAMMB, last two and a half hours
The Last 2.5 hours of California Weather
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Mid-November, 2018: Will it Be Wet, or Will it Continue to be Bone Dry?

WEATHER NOTE

A Tropical Brew Bubbling? Or Not?

Will it Be Wet, or Will it Continue to be Bone Dry?

Current Conditions
A couple of Big Storms are potentially moving into the, "West Coast Launch Zone," meaning into the position off the NE coast of Indonesia, from where common configurations of Highs and Lows in the North-East Pacific can deliver vast tropical flows generated by these storms to the West Coast of the US.

Unless
Unless the storms don’t get into their, “launch,” position, or, unless a big blocking ridge knocks these potential tropical flows to the North and South of California and the Sierra Nevada Mountains, around us, as happened during the biggest wettest, hottest, El Nino on record, that transpired through 2015. During the 2015 monster El Nino, which also happened to transpire during the driest single year in California’s living memory and its written history, during the deepest drought in five hundred years.

Water News: Epic Drought: California 2012-2017 Drought one for the Ages

Hummm. This configuration of human and natural forces bears close observation and tracking.

Tracking Resources

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Hidden Trends in our Changing Global Climate Revealed

CLIMATE CHANGES DRAMATICALLY UNDERESTIMATED

Statistical Reanalysis Reveals-Explains Anomalous Weather Trends

Overlooked trends in annual precipitation reveal underestimated risks worldwide,
University of Maine, November 13, 2018.

MAIN POINTS

Overlooked Weather Trends
“A reanalysis of worldwide annual trends in precipitation demonstrates that risk to human and environmental systems has been underestimated… they found more than 38 percent of the global population and over 44 percent of land area have been experiencing overlooked precipitation trends.”

Standard Analysis
Performed using, “...the probability distribution function (PDF), where the frequency with which precipitation amounts within a certain interval occur and the probability of exceedance (non-exceedance) above (below) a given threshold can be readily estimated.”

New Analysis using Quantile Regression
“...an innovative trend typology using quantile regression and offer a comprehensive analysis of overlooked trends worldwide.”

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Near Record Downpours in Kaui: Kalalau Trail Closed

Updated  below

 

RADICAL WEATHER
Near Record Downpours in Kaui

Kalalau Trail Closed

NASA GPM data used to evaluate Hawaii's flooding rainfall,
NASA/Goddard Space Flight Center, April 19, 2018.

Thought we had big Tropical Downpours?

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Astro News, Extraterrestrial Weather, Storms of Neptune: The Dark Vortex

 

Astro News
News from Neptune
Extraterrestrial Weather

Hubble Images Neptune's Storms & Dark Vortice
The demise of Neptune's dark vortex
Credits: NASA, ESA, and M.H. Wong and A.I. Hsu (UC Berkeley)

Storms of Neptune: The Dark Vortex

Hubble sees Neptune's mysterious shrinking storm,
NASA/Goddard Space Flight Center, February 15, 2018.

"... first discovered in the late 1980s by NASA’s Voyager 2 spacecraft."

"Like Jupiter’s Great Red Spot (GRS), the storm swirls in an anti-cyclonic direction and is dredging up material from deep inside the ice giant planet’s atmosphere."

"Unlike Jupiter’s GRS, which has been visible for at least 200 years, Neptune’s dark vortices only last a few years."

 

News from Neptune

 

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