Winter is Here

Today marks the beginning of winter. While snow and ice can appear on the summit of Mauna Kea any time during the year, the most severe weather usually occurs during winter storms. We all look forward to the beautiful sight of Mauna Kea with her white coat. Of course this comes at a price, days of difficult access to the summit facilities, or no access at all. The loss of observing nights due to ice and clouds is most common from January to March.

Iced
The emergency evacuation vehicle covered with ice

White Mountian

A great deal of mythology swirls about our mountain. Some of it may be true, much is probably not as wishful thinking and reality collide on the summit. The current debates have moved every little detail into the light.

Mauna Kea White
Mauna Kea with a fresh covering of snow and ice
One of the claims I have heard repeated a few times recently is that in the past Mauna Kea always had snow, even in summer, making the name “White Mountain” very applicable.

I had my doubts about this. Whenever these questions arise it is important to check the records. Fortunately this has already been completed for us… Norbert Schorghofer, Elianna Kantar, and M. Puakea Nogelmeier at the University of Hawaii combed through the historical records looking for observations of the presence of snow atop Mauna Kea. What they found is that there were any number of records indicating the lack of snow on the mountain.

Follow the link and read the paper, it is a fascinating view into the past of Mauna Kea. Included are excerpts from ships logs and diaries of early visitors to the islands. At the end is a convenient timeline of the accounts covering the first century of written records and a set of three conclusions drawn from this information. The author’s conclusion is clear, Mauna Kea has not featured permanent snow cover any time in the last few centuries.

There was a time when the mountain featured permanent snow and ice fields. During the last ice age, around 12,000-11,000 years ago, there was permanent ice and active glaciers in the summit region. Along the access road there are textbook glacial features to be seen, glacial polish and moraines. This was gone before humans arrived in the islands. What we see today was probably much as it was over the past few centuries, as borne out in the records of the first European voyagers to make it to the islands. Snow may have been more common, but there were certainly periods when no snow was to be seen atop the summit of Mauna Kea.

These historical accounts date from long before human activities had begun dumping vast quantities of carbon dioxide into the atmosphere. We do face an uncertain climate future, warming temperatures may reduce snowfall. The opposite may also be possible, warmer sea surface temperatures may create more precipitation at the summit with heavier snowfall events possible.

A Mid-Summer Snowfall atop Mauna Kea

A snowfall on the summit of Mauna Kea in mid-summer. A very pretty event, always nice to have some white atop the white mountain. It is even a better as a contrast to the very hot weather we have been having down below. Everyone has been commenting on the unusually warm weather, particularly Hilo residents who have suffered through record breaking warm days and near 100% humidity.

Midsummer snow atop Mauna Kea
A midsummer snowfall atop Mauna Kea on July 17th, 2015
The amazing, though somewhat predictable result of this midsummer snow is in the number of people who see this natural event through the window of their own biases. Interpreting the snow as a message or a means to further their adgenda…

I have been raised on Big Island all my life (which is a long time) and I have NEVER heard of it snowing in July, snow in May is the talk of the town, but in July? It is a miracle! Especially with the hot humid temperature breaking records, how did a trough get through? It must be a message from above and Poliahu’s blessings to our Mauna Protectors. Now all we need is the Kamakani to blow all of the existing telescopes away! EO – Anela2 comment on the West Hawaii Today website

I would point out to the comment author that I have photos in my archive of midsummer snows from almost all of the last eight summers. I can not remember a summer that has not featured snow atop the mountain, even if my photo collection is not complete. Snow can happen anytime of the year on the summit of Mauna Kea. Most summer snows are like this one, fairly minor and mostly melted away by the end of the day.

If the TMT goes up, I can be that this type of thing won’t happen anymore. That monstrosity will block the trough’s moving through the island as well as the winds. It will throw everything off. – Shalee Kekawa comment on the West Hawaii Today website

Either this is a good example of Poe’s Law, or the author really believes that, a truly sad state of science literacy. It gets worse…

Is anyone testing the snow for any chemicals sprayed from the sky? – Josephine Keliipio Facebook comment

An astute observer will note this same sort of occurrence whenever something unusual happens. A few volcanic eruptions hit the news within a few days and people are claiming it is a sign of imminent apocalypse. While anyone who pays attention to volcanoes is fully aware that 12-20 volcanoes are erupting at any given time on the planet, the event is nothing unusual. Earthquakes are good for the same phenomena.

This common misconception occurs when a person’s attention is attracted to something they do not normally pay any attention. Without any baseline data stemming from experience, everything seems new and unusual. I have yet to see a name for this phenomena, though I am sure it exists.

With all of the attention paid to Mauna Kea this year, I really expect this sort of thing to happen again… And again… And…

The Aftermath of the Storm

The storm appears to be waning now, the satellite shows that much of it has passed the island. Not long ago the snowplow crews let it be known that they would not reach the summit today, try again tomorrow as the storm abates.

I did a bit of a photo survey of the summit using MastCam to check on the summit conditions. Poliʻahu rules Mauna Kea!

The Blizzard Continues

The storm continues unabated atop Mauna Kea. Word from the snowplow crews is bad, deep drifts cover the road above the switchbacks. They are stating that it is unlikely our summit crew will be able to access the telescopes today. That will make the second day in a row with no access.

MastCam is still functioning, only half the dome is covered with ice. I have turned the heater on in an attempt to clear what I can. The view it reveals is deeper snow and a lot more ice. The railings on the dome ladders have coatings many inches thick.

Mauna Kea Blizzard
The blizzard continues atop Mauna Kea March 12, 2015