Tuesday, June 27, 2017

Cool & Dry with a New Island

Canadian high pressure has pushed the jet stream deep into the south, a little unusual for the first week of summer, resulting in cool nights and warm, dry days for the east coast. As with all happenings on Earth, that will be short lived and hot and humid will return by week's end. In other change news, the Atlantic ocean has piled sand into a new "island" at the very tip of Hatteras Island(Cape Point) on North Carolina's outer banks. Like all barrier islands, this will be ephemeral and could be gone as quickly as it appeared or continue to grow for centuries until... and that's the ephemeral part, a hurricane in 2217 takes its sand and moves it somewhere else. Ephemeral for Earth is often quite different than the human view of short lived. In general, the outer banks eroded from the north end and sand, and potentially new islands, is deposited at the south and west end of the chain. With the current (not the longshore current moving the sand around) warming Earth is undergoing and melting of glacial ice from said warming, erosion and deposition of all of the barrier islands of the Atlantic coast of North America can only increase in speed and magnitude. Buy and build wisely - but as my favorite oceanfront realtor says, " there will always be oceanfront..."; will it be where you thought or want it to be. Time will have the final but ongoing say.
Speaking of magnitude, there has been a plethora of 2 and 3 magnitude quakes in the Sierra Nevada of California not far from the Nevada line so far today. That's way east of the San Andreas fault system but you don't push up mountains that high without lots of faulting.  Makes me wonder if these are foreshocks, warning of something larger or just young mountains adjusting as young mountains do? Again, time will answer that. The rest of the planet has experienced some minor shakes today with Indonesia and the southwest Pacific leading the way with quakes in the low 5 magnitude range.
The volcano list is now 6 days old and except Hawaii all current activity is around the Ring of Fire.
Tonight will find the waxing crescent moon about 1 degree away from Regulus, the heart of Leo; should be a lovely pairing. To "see" the rest of the lion, imagine Regulus as the point at the end of a backwards question mark that marks his head. There is a brightish triangle of stars to the left of the head marking the lion's reclining hindquarters.  Leo is one of the easier constellations to see/imagine what our ancestors saw in the night sky.  From the moon, following the ecliptic, that arc the sun, moon and planets takes across the sky, you will find bright Jupiter higher in the southwest and in the southeast yellowish Saturn. Will be a cool lovely night for star gazing - potential cloud cover notwithstanding.
But right now it's a cool and lovely day and time for this blogger and his large brown dog to get out and enjoy, today on Earth.

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