North American Monsoon–July 2024

Reflection of developing clouds in Marshall Lake, Arizona.

After an early start to the monsoon in late June, the monsoon went on an extended break. For much of July, high pressure remained to our west resulting in northwest to northeast flow across the region. Consequently, tropical moisture had to take the long route over the eastern Pacific Ocean, across the Pacific Northwest, then southward across the High Plains and Rocky Mountains. By the time it arrived, much of the moisture had been depleted, especially in the lower levels. The resulting storms were generally weak and produced little rain, and even less lightning.

Here is a summary of what I did manage to photograph during that period.

11 July 2024

Weak storms produced little in the way of rain but did result in a nice sunset.

Sunset and reflected sunlight on Lake Mary.
Sunset and reflected sunlight on Lake Mary.
15 July 2024

A few strong storms formed on the north side of the San Francisco Peaks and I positioned myself  at the entry to Wupatki National Monument. There was very little lightning but I did get this photograph that shows the landing point of the bolt. I also got power poles.

Lightning on the north side of the San Francisco Peak showing the landing point of the bolt.
Lightning on the north side of the San Francisco Peak showing the landing point of the bolt.
16 July 2024

Radar indicated some storms south of Mormon Lake–a favorite spot for shooting storms because of its expansive views. This storm produced only a few visible bolts of lightning but I did manage to capture this one–along with the waxing gibbous Moon.

Distant thunderstorm with lightning.
Distant thunderstorm with lightning.
21 July 2024

While taking a short hike to Alfa Fia Tank near Snowbowl and the San Francisco Peaks I was happy to see some convection developing that had nice reflections in the water. Look closely and you will also see the ducks.

Reflection of developing storms in Alfa Fia Tank near Snowbowl in the San Francisco Peaks.
Reflection of developing storms in Alfa Fia Tank near Snowbowl in the San Francisco Peaks.
23 July 2024

I was confident that Grand Canyon would produce good storms with possibilities for lightning and rainbows. It didn’t. The best I could do was shoot this ultra-wide view of the clouds using a 12mm fisheye lens.

Ultra-wide angle view of Grand Canyon from Navajo Point.
Ultra-wide angle view of Grand Canyon from Navajo Point.
24 July 2024

The next day in Sedona was a bit better. Although there was some lightning I managed to miss it all because it was never in the direction that the camera was pointed. Look carefully in the upper left corner of this image and you can just barely see a few filaments of the lightning stroke which occurred to the left of the camera. I should have shot this with a wider field of view. On the other hand, the sunset was pretty good.

Heavy rain falling from a monsoon thunderstorm.
Heavy rain falling from a monsoon thunderstorm.
Another great sunset in Sedona, Arizona.
Another great sunset in Sedona, Arizona.
Sunset in Sedona.
Sunset in Sedona.
26 July 2024

A few days later I tried something different and concentrated on getting the very early stages of convective development over the San Francisco Peaks. A bonus was catching the reflections of the clouds in Marshall Lake. By the time I left there was lightning and I was able to capture a few bolts.

Reflection of developing clouds in Marshall Lake, Arizona.
Reflection of developing clouds in Marshall Lake, Arizona.
Reflection of developing clouds in Marshall Lake, Arizona.
Reflection of developing clouds in Marshall Lake, Arizona.
Lightning over Marshall Lake with the San Francisco Peaks in the distance.
Lightning over Marshall Lake with the San Francisco Peaks in the distance.

Time-lapse of convection developing over the San Francisco Peaks (200x speed).

While shooting these still images I had another camera capturing time-lapse video. It’s always fun to see the development of clouds in time lapse.

26 July 2024

This was a last-minute decision as the radar showed storms developing west of Flagstaff. I drove to Mormon Lake hoping for sunsets, rainbows, and lightning. Two out of three isn’t bad.

Sunset colors on thunderstorms and anvil clouds.
Sunset colors on thunderstorms and anvil clouds.
Lightning west of the San Francisco Peaks.
Lightning west of the San Francisco Peaks.
In-cloud lightning in the anvil of a thunderstorm.
In-cloud lightning in the anvil of a thunderstorm.
Lightning from a distant storm located over Grand Canyon. Wish I had been at the Canyon.
Lightning from a distant storm located over Grand Canyon. Wish I had been at the Canyon.
Radar screen capture showing location of storm relative to my position.
Radar screen capture showing location of storm relative to my position.

This storm was located over Grand Canyon and was producing lightning bolts into the canyon. I wish I had been there instead.

How hot was July, anyway?

July 2024 was the second hottest July on record. Only July 2023 was hotter.

Number of days with the maximum temperature >=90°F in Flagstaff. 2024 was the second hottest July; only 2023 was hotter.
Number of days with the maximum temperature >=90°F in Flagstaff. 2024 was the second hottest July; only 2023 was hotter.
Mean monthly temperature for July. 2024 was the second hottest July on record; only 2023 was hotter.
Mean monthly temperature for July. 2024 was the second hottest July on record; only 2023 was hotter.
July total rainfall from the Flagstaff raingauge network.
July total rainfall from the Flagstaff raingauge network.

Total rainfall for the month was below average but not anywhere near record territory. Thank goodness for that!

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