Geyser Notes

After several long Grand intervals, it would have been nice to not have seen the steam cloud as I drove into the Han Store parking log. Then again, 8.5 hours was about average until the other day, so I could have been out there earlier. With all the yelling of geyser times as (or before) eruptions start, this would have been a nice time to have had something besides silence, too.

When I stopped for gas in Idaho Falls, I discovered that despite my attempts to avoid them, I managed to pick up some bison deposits from the Madison entrance road. Nothing as bad as last year, but I'll be visiting the car wash as soon as I can to remove them.

Posted by HKoenig at 09:20 PM | Permalink

When I came in from the night, I was thinking that if it stayed clear, it looked like we were in for some significant fog. It was already starting to form in some areas. Instead, tday started out looking like it was going to be a continuation of yesterday, with a solid gray sky that had to rain. But by about 08:00 it had already broken up, so what we had may have been just the fog I expected, but a bit higher. From Lower Ham's, I could easily seen the fog banks of Midway and Lower Basin to the north, but there also people said it wasn't that bad.

One thing people don't realize is that a Rift delay doesn't always happen after Rift starts. Sometimes the delay is that wait you have from one West Triplet eruption without a Rift to the next one where Rift starts. This morning, though, we just had a long wait between West Triplet eruptions for no good reason. And while last night's two burst eruption was far too short, this morning we had nearly three minutes that could and should have been broken up.

Overnight, around 04:30 there were a series of small (1.9 to 2.9) earthquakes centered in the Lower Basin, somewhere between Thud Group and Porcupine Hills. It was felt by a few in this area, as well as campers at Madison. But it appears they had no effect that was visible.

On the other hand, the monitor confirmed that I did see a second minor at Castle last night, and we didn't get the major until 12:48. Despite the winds (from the north) Daisy's intervals dropped below 2 hours. And Beehive reminded people that just because the last few indicators were over 15 minutes doesn't mean it still can't toss in a 6 minute one.

The rest of the day was filler time. Daisy was having intervals below two hours, and Grotto started another marathon. Oblong wasn't reported, either. While waiting for evening Grand, Penta looked good like it did the other day, but once again, just as Penta was about to start, Sawmill took over.

The pair of coyotes who tried to harvest marmots behind Grand the other day were back during the evening Grand wait. They made two attempts, the first of which seems to actually have some planning, or at least appeared that way. The first one crossed the boardwalk between Rift and Belgian, and slowly made its way along the base of the hillside, right next to Grand. All the while the marmots were chirping, but the coyote seemed to not mind or care. A few minutes later the second appeared. This one quickly ran up the hill a ways before trying to snatch a meal. No such luck. About an hour later one of them appeared on the northern edge, again without success. In any case, it appears these two know that there are meals to be had behind Grand. Now if they can only acquire them.

Grand itself first waited for Rift, then for sunset before erupting. As it seems happens way to much to be mere chance, the eruption occurred on the last possible Turban before darkness. As it was, we even had a little light to see the way back. The eruption itself was another eleven minute long one burst, notable only for Turban and Vent continuing instead of their usual pause.

Posted by HKoenig at 01:21 PM | Permalink

An overcast night turned into a gray, dull morning. Grand was there, somewhere, inside all that steam, and Castle would have been much nicer if it had been backlit by the rising sun. But there's no rain with these clouds, which is an improvement over many Memorial Day weekends I remember.

In the dark I thought I heard frogs croaking off in the distance, north of Castle. Years ago that swampy area north of the lift station was their home. The racket they made would cease when people got close, and then one year they just disappeared completely. Would be nice to get them back.

Also, I noticed how it is possible for things around here to improve instead of get worse. Years ago there were problems with the lights from the buildings and parking lots. Over the years it was the Lodge, or the Inn parking lot, or Lower Ham's or the gas station. One year it was so bad that I could see my shadow on the trees by the trail at Rift. That's no longer a problem. There are still lights in from all those areas, but they are unobtrusive and do not detract from the nighttime experience. (Although I must admit I don't know if that's also the case on Geyser Hill, with it's direct exposure to the developments.) I hope the new Visitor's Temple creators resisted the temptation to illuminate their masterpiece, although I have my doubts about that cupola on the top.

Until around noon or so it was a dull, gray day. Then the hints at dawn that the clouds might break became reality. Sort of. At least the sun came out and things warmed up, but also got windy. It only lasted an hour or so, and then it was back to dull gray, but the wind didn't go away. After the mid afternoon Beehive eruption, the promised afternoon showers finally materialized. Enough to dampen the roads and walkways, but not much else. And even that didn't matter as by then there wasn't anything much going on. (Well, unless you had an uncontrollable urge to see Oblong or Grotto start.) Besides, it's not a Memorial Day weekend if there's not at least some rain.

The rains appeared ended by the time Castle was due, and the weather radar maps showed that there should not be any more heavy showers after that. Unfortunately, because of the rain I was a bit slow getting out to Castle, and saw the start from the parking lot. I got there just in time to get a duration on the minor eruption.

The weather radars were wrong, as there was one last shower as I arrived at Grand as the last light faded. Just enough to wet things down one last time and to make sure I had to put on all the rain gear. A West Triplet eruption with neither Grand or Rift accompanying it let me know I'd be there a while too. Was there long enough to catch the next eruption of Castle just before Grand, at least I thought it was Castle.

So after a long string of steady Turban intervals, suddenly Turban starts when I was expecting to hear the first trickles of overflow. Yep, Grand is reaching into the past and letting me know that it can still have sub-sixteen minutes Turban intervals that lead to an eruption. Because of the dark, I have no idea what went on out there, but assume it was a very good, early fill. Then one more reminder of who is in charge-- a two burst eruption lasting less than nine minutes. After all that wait, I really wanted that third burst. But that also meant that Vent and Turban never stopped, so I was back at the parking lot within half an hour.

As for Castle, I'm not sure what I saw. It sure looked like major activity in the three or so minutes before Grand, but when I walked by, it was quiet. I may have got to witness a pair of minor eruptions in a row.

Posted by HKoenig at 07:02 AM | Permalink

Looking at the weather predictions for the next few day, I decided that today would be my only real chance to be out for a nighttime Grand eruption. Besides, Castle was also predicted for the same time frame, and there was even a chance for Beehive. So worth the effort. But what kind of interval to expect. Decided to compromise on getting up at the 7 hour mark.

The night before a small herd of bison was hanging around the Lower Ham's parking lot. (Such that when I arrived at the end of Grand, I thought I might have to wait to get to my truck. So when I pulled into the parking lot in the dark, it occurred to me that I might need to take that into consideration when I biked out. I know there was a least one bison out there somewhere, as I could hear it snort both when I left and when I came back.

It turns out that I wasn't out long, either. When I arrived in the parking lot, I thought I heard a thumping type sound, but dismissed it as Sawmill. Walking up it was obvious that Sawmill wasn't erupting and hadn't erupted recently. West Triplet was erupting, and hoped that it was the reason that the Grand area looked so steamy from Castle. Nope. I arrived during the post eruption pause, and thanks to the steam, I had to finally hear the deep rumbling of an empty Turban vent to be sure.

Wasn't a complete waste of time, as Castle did start as I crossed the bridge going out, and was going into steam on my way back.

The bison herd that hanging around last night was still in the area in the morning, all spread out in the meadow between Castle and Old Faithful. I noticed that it looked like some of them were headed towards crossing the river and invading the Sawmill Group. So I headed out for Grand a bit earlier than I would have normally, but I was also hoping for a short interval. As it was, most of the bison went elsewhere, although about six or so did wander downriver past the Scalloped Springs and Witches Cauldron.

Next morning's Grand was a classic example that the Rift delay can come before the eruption of Rift. Based on Rift's intervals, I was hoping that Grand would get in a eruption and then we'd get the West Triplet and Rift eruptions. We did, but about two hours later than it could have. West Triplet was erupting as I arrived, and quit shortly thereafter. At about that time, Rift was steaming heavily, and it looked as if it was going to start, but didn't. The next Turban interval was a little over 24 minutes long, a sort of half-hearted delay. After that, there was nothing more to do than to wait out a series of mediocre Turban intervals until it was time for the next West Triplet.

After Grand's second burst, the pool refilled and stayed up and sloshing for about a minute. Too long, it turned out, and we had to settle for two nice bursts, the second one much higher than the first. After that, it was West Triplet and Rift, as expected.

  While waiting for Rift, I notice a large bird circling overhead. Too big to be one of the osprey (one of which came over Grand yesterday with its catch). Binoculars showed it was an eagle. I never saw its wings move, but it kept circling higher and higher until once when I looked away I couldn't pick it back up.

Oblong had been full since first observed in the morning, and by the time Rift started, that was close to seven hours. So I decided to take advantage of having nothing to do to put in an hour when an eruption there was likely. My hour was about up when we got the eruption. There were some audible thumps, but nothing that I felt, and the height of the surges did not match the impressive activity I've seen from Grand. So it was time to trudge back to Castle and get my bike and take care of more mundane activities, like eating. I had just unlocked and mounted my bike when the call came out that water was visible in Beehive's Indicator. Great timing. So I walked back to Sawmill (which was in a Deep Drain mode eruption) and over to Geyser Hill. The wind was ideal, no one on the walkway got wet. That also meant I was able to station myself right in the shadow of Beehive's water column to get a nice backlit eruption. Then it was back to the bike. Again.

A few hours after Beehive, the clouds came. No rain, other than a few droplets on the windshield, but it was a definite mood change from the previous days. While waiting for the evening Grand, I got to swat my first mosquito of the season. I'd prefer that to be the last, but know I won't get that lucky unless it rains for the next few days.

That evening Grand eruption took place shortly after sunset. It wasn't as annoying as those far too many times when it seems to wait and erupt on the first Turban after sunset, because the clouds obscured the sun. It was dead calm at the start, so we got a huge base surge at the bottom of Grand's water column. There was till enough light to see the full height of the second burst, too. (For the first time in years, the one burst eruptions I've seen this trip constitute less than 50 percent of the total. Toss in a couple of threes in and I might even get to 2.0) Grotto was still active as I left, meaning it was twelve hours into a marathon eruption. I want it to be still erupting at dawn.

Posted by HKoenig at 07:04 PM | Permalink