After waiting around longer than expected to resolve an unexpected tire issue, I laced up to do a few neighborhood laps. It quickly became apparent that my blood sugar was low and I was not going to be able to run as far as I would like, but nevertheless, I enjoyed taking some deep breaths under a very starry night sky.
A cold front is predicted to start moving in tomorrow and despite the relative calm balminess of tonight, I could feel the beginning snatches of it as I ran through pockets of cool dry air.
Running through the first, the word "thermocline" suddenly popped into my head and I remembered seeing and feeling this strange phenomenon during a SCUBA diving trip with my father.
Thermocline: "When scuba diving, a thermocline where water drops in temperature by a few degrees Celsius quite suddenly can sometimes be observed between two bodies of water, for example where colder upwelling water runs into a surface layer of warmer water. It gives the water an appearance of wrinkled glass that is often used to obscure bathroom windows and is caused by the altered refractive index of the cold or warm water column." (Thank you, Wikipedia.)
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