Dewpoint 68 F (20 C) now; second cool day in a row gets “plugged in” anyway

Below a hodge podge of photos from yesterday’s cloudscapes. THought I would see what I could do before exede choked me after 5 AM, share some sights I liked. Running into choke wall now, so can’t move them around in their proper order without pain, have but two minutes left before exede chokes me…I guess I’ve made that point enough.

Drier air moving in aloft….  AZ mod, 11 PM version thinks it will be a dry day here, showers around but not here.

Hmmmm.  5:15 AM.  Nothing seems to have changed. don’t seem to have been choked yet.

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3:16 PM. Random collection of cloud-centric folk exult over yesterday’s cool day that had some thunderstorms anyway. You can see how happy a cool day with rain makes people here.  Wish I’d gotten their names.
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6:56 PM. A fabulous aspect to yesterday was this re-blossoming of Cumulus and Cumulonimbus clouds after the brief thunderstorm struck a couple of hours earlier. Often, as you know, the clouds is dead, just debris clouds cover the sky after a good rain.
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11:06 AM. Cumulus struggle to build off the Ms. Mt. Lemmon cloud factory under an overcast of Altocumulus clouds. After the previous dud day, you wondered if this might be another dull, dank day with no rain or sprinkles.
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2:54 PM. By this time, with a shallow Cumulonimbus cloud dropping rain near the Gap, you knew things were going to be different yesterday from the prior day.
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7:30 AM. Would these clouds thin and burn off? Or would they compromise our chances of a rain by keeping the temperatures too low. Dewpoint was 67 F, extremely high, so the amount of water in the air was phenomenal, ripe for a good rain if everything else fell into place.
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4:22 PM. Just about here. What a great sight this was roaring toward Sutherland Heights! Got 0.22 inches from this.
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4:53 PM. Had some welcome ponding, too!
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3:45 PM. Denser shafts, obscuring parts of the Charoleau Gap complex, indicate Cumulonimbus tops are higher than earlier in that direction.
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4:00 PM. This behemoth rolled over the Pusch Ridge and was heading toward us. Cargodera Canyon, NE corner of Cat State Park, got 0.51 inches as it went by.
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3:08 PM. Lid busted; clouds deepening to above 40 kft. If you saw this you were likely as overjoyed as I was at this sight, that the cool day was not going to prohibit massive clouds.  Here, looking NNW past S-Brooke.

 

By Art Rangno

Retiree from a group specializing in airborne measurements of clouds and aerosols at the University of Washington (Cloud and Aerosol Research Group). The projects in which I participated were in many countries; from the Arctic to Brazil, from the Marshall Islands to South Africa.