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Observations for 2014 September 01

It seemed like a good idea to come out to Grand at the six hour mark. So far this weekend, except for the single long interval of over nine hours, I’d yet to have to wait more than one Turban eruption interval, and in most cases, I didn’t see Turban erupt at all. The night was more overcast than had been expected, so not quite as cold as expected, either. But it was also just a bit breezy, which compensated for that. On the walk out, the coyotes were set off by someone over by Liberty Pool.

West Triplet was in eruption when arrived, and followed shortly by Rift. The Turban activity was strange. Unlike the previous long wait, this time all the Turban durations were short, less than four minutes. The intervals were also short, between 16 and 18 minutes. Every other eruption of Turban was preceded by Grand overflow, while the others had none. So it appeared that this was a variation on the waits where Turban alternates between long and short eruption duration.

The hope was that Grand could go with Rift, but that didn’t happen. Rift ended and the pattern continued. At one point, the power in the Old Faithful area went out, and so we got to experience real darkness out at Grand, at least until the emergency generators kicked in. It was also around that time that we heard an elk bugleing somewhere in the direction of Daisy.

After waiting two hours, finally decided after one of the heavy overflow Turban eruptions that had had enough, and time to go in. The reasoning was that it was going to be at least two more intervals, forty minutes, before Grand would erupt. Needed to get some sleep. That it sprinkled a bit as walked away reinforced that this was the right decision to make.

Turns out the decision was even better. The electronic monitor showed that Grand erupted about eighty minutes after we’d left. In other words, it had two cycles before it erupted on an interval close to 9-1/2 hours long.

So was able to leisurely pack up for the return trip home, and then go out to Grand one last time. The day was sunny, but cold and windy. It was comfortable sitting in the sun, but as soon as a cloud (and there were many) covered the sun, you could feel the coolness. But Grand did revert to short intervals, and with the sun out, the eruption was quite nice. It was the only eruption I saw during the weekend that was in sunlight, and not in the dark, or in the rain, or while I was in the cabin.

Also of interest is that Beehive did not erupt overnight. It wasn’t seen the night before, so it wasn’t known how long the interval was at that point, but definitely well over 24 hours.

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Observations for 31 August 2014

Decided after the previous wet Grand that I would skip the next one. Woke up around the start of the eruption window, and hearing the raindrops on the cabin roof, I knew I made the right decision.

So I figured that a 12h30m double interval would probably be safe. I didn’t expect, at the 11h50m mark to hear a radio call that Grand was in eruption. The only problem with the call was that it was based on a distant observation, and in the past there’ve been false alarms. I didn’t want to just accept this and then have a second call, for the real eruption, a few hours later. So I went down and checked, and confirmed that it really did erupt. On the way back, the rain started up again, and proceeded to last all the rest of the morning.

Thanks to the rain, didn’t get out into the basin until well after noon. Got out to Grand with West Triplet erupting, and Rift starting a few minutes after I arrived. Around the same time it became obvious that Grand was pouring out water. That’s when the fun began. With small waves coming off of a full pool, Grand boiled up about a foot. This was the first “boop” I’ve seen in years. This was followed by several more boops over a period of close to four minutes. During this time the pool dropped at least once, then came back. Finally, a boil turned into the actual eruption.

The eruption was another one burst, and Rift ended shortly after Grand. But one thing it does show is that there is a good chance that those who want to make a radio call when Grand starts to boil are going be making corrections.

With the wet weather, Aurum’s intervals dropped down into the springtime range of around four to five hours. For those who don’t visit during that time, but who want to see Aurum, this presented an opportunity to forego the usual interminable long waits of summer. So after Grand I joined them. The railing was packed, but I decided that with the sunlight and wind direction, sitting to the north was just as good an option. Turned out only had to wait about ten minutes, and then got an eruption with a full rainbow anchored on the right by Aurum itself.

In the evening, went out for a post-sunset eruption of Grand. Nothing much out of the ordinary, but once again it was a short interval and didn’t even need to wait a full Turban interval.