Monday, August 21, 2017

Scenes from the Eclipse

Note: Post has been updated to correct location of site with 10ºF temperature fall.

Before.

Source: CIRA
 After.
Source: CIRA
Incoming solar radiation (Salt Lake area sites).

Source: Alex Jacques, MesoWest, University of Utah
Temperature (Salt Lake area sites).

Source: Alex Jacques, MesoWest, University of Utah
Temperature at Peters Sinks (notorious cold spot in Bear River Range) site in the Bear River Range.  Fall of about 10ºF, although it's unclear if we're at the bottom yet (probably close).

Source: Utah State University, MesoWest

5 comments:

  1. Dropped about 6-7 degrees (from around 86 to a bit below 80) when measured at Neil Armstrong by handheld digital devices... I also noticed a breeze that was not present when I left work at 11am a few miles east of there.

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  2. Temperature sensors from amateur network in my vicinity recorded temperature drops of 7-10 degF from eclipse start (1047 MDT here) to well after eclipse peak (1147 MDT). Some of this decrease almost certainly resulted from fairly opaque cumulus clouds that rolled through around 1200 MDT. Up until that point (1200 MDT), skies directly above the sensors where clear, and the 5-min reports indicate 5-7 degF of cooling occurred during the pre-cloud period.

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    Replies
    1. Should have mentioned my location: Golden, Colorado

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  3. https://esrl.noaa.gov/gsd/learn/hotitems/2017/images/eclipse_loop.gif

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  4. I was up in Idaho (Stanley area) and put a thermometer in a shaded location. The temperature initially peaked around 10:30 a.m. when the sun was still at least half visible (54 F), then dropped to 43 F during the eclipse. By the time it was completely over around 1 pm it was up to 65 F.

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