Light and Weather
by Michael Frye | Sep 8, 2019 | Light and Weather

Half Dome and Nevada Fall at sunset from Glacier Point, Yosemite
While summer is the dry season in California, monsoonal moisture often pushes up from Mexico during this season, triggering afternoon thunderstorms in the mountains. But there hasn’t been much of that this year. It’s been one sunny day after another. While the typical late-summer monsoons made their way to Arizona, Utah, New Mexico, and Colorado, they never reached this far west.
Last week, however, some of that monsoonal moisture finally arrived in the Sierra, and on Tuesday, Wednesday, and Thursday, clouds and thunderstorms developed over the high country.
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by Michael Frye | Aug 18, 2019 | Light and Weather

Creek flowing into the Pacific Ocean, Oregon coast. 26mm, five bracketed exposures at f/16, ISO 100, blended with Lightroom’s HDR Merge, then blended back with one of the original images in Photoshop to eliminate ghosting.
Summer is fog season along the west coast. Currents and upwelling bring cool water to the surface near the shore, and when warm, moist air blowing off the Pacific encounters that cold water the air temperature near the surface drops to meet the dew point, creating the right conditions for fog formation.
Usually that fog layer lifts above sea level, so along the shore it looks like a low overcast. That stratus deck might break up late in the morning, but often starts to re-form toward sunset, building back into a solid overcast by morning.
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by Michael Frye | Jul 28, 2019 | Light and Weather, Yosemite Photo Conditions

ice fingers, Yosemite. 200mm, 1/4 second at f/16, ISO 100, focus-stacked and blended with Helicon Focus.
I always try to drive over Tioga Pass right after it opens in hopes of finding still-snowy peaks, and melting ice on some of the high-country lakes. This year’s big snowpack delayed the full opening of Tioga Road until July 1st, so I thought there would still be lots of snow up there. But when we drove over the pass on July 2nd we found less snow and ice than I expected. The peaks had some snow, but not as much as in 2017, and the lakes near the road were ice-free.
Later, while scouting for our high-country workshop, I did find some ice on higher lakes, away from the road. And our workshop group got to photograph a small patch of ice on one lake before it all melted. I think if we had arrived at that lake one day later the ice would have been gone.
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by Michael Frye | May 19, 2019 | Light and Weather

Clearing storm, spring, Yosemite, 7:27 a.m. Friday. Five auto-bracketed frames, two stops apart, blended with Lightroom’s HDR Merge.
We’re having some unusual weather for May. Higher elevations of the Sierra Nevada received over a foot of snow on Thursday. A second storm brought more rain and upper-elevation snow last night. A third storm is forecast to arrive on Tuesday, with another storm possibly coming on Friday.
This kind of weather pattern is fairly common during California’s winter rainy season. In May, as the summer dry season approaches, it’s not unusual to see a small system come through and deliver some light rain. But a series of strong, wet, cold storms like this is practically unheard of.
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by Michael Frye | Apr 28, 2019 | Light and Weather

Wildflowers and oaks in the fog, Table Mountain. I loved the s-curve created by the foreground flowers. But a strong leading line won’t work unless it draws your eye to something interesting in the background. In this case the two distant oaks provided that background focal point – a period at the end of the sentence. (And those oaks wouldn’t have stood out so clearly without the fog.) 50mm, 1/3 of a second at f/16, ISO 100, focus-stacked.
After our trip to Antelope Valley Claudia and I hoped to photograph wildflowers again, so I kept my eye on the forecasts, looking for calm winds, and – if we got lucky – some clouds.
There was one day that looked promising, with showers in the forecast for much of California. Clouds and rain could be a great complement to wildflowers. But it looked like those showers would be accompanied by wind in all of the southern California wildflower spots. So I thought about other locations that might have less wind, and decided to go to Table Mountain, in northern California.
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by Michael Frye | Mar 10, 2019 | Light and Weather

Sunrise from Tunnel View, Yosemite. On this morning the satellite images showed lots of high clouds, but I hoped there might be a gap to the east, allowing the sun to shine through and light the underside of the clouds. And I hoped for mist on the valley floor. That was asking for a lot, but sometimes things work out. The color lasted about three minutes. 50mm, three bracketed exposures, two stops apart, blended with Lightroom’s HDR Merge.
While early February brought lots of snow to Yosemite Valley, over the last three weeks we’ve seen a series of warmer storms, with rain rather than snow. I’d rather have snow, of course, but any weather is more interesting than blue skies. And rain on top of snow is a great mist producer.
Fog or clouds form when the temperature and dew point converge. That means either cooling the air to meet the dew point (like when air rises, and cools, and the water vapor in the air condenses into clouds), or raising the dew point to meet the air temperature (by increasing the amount of moisture in the air).
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