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2013-01-31

'Here Comes the Sun'

Feather Wilson

Very slight increases in solar activity could have some effect on the climate. The solar spots increase on an eleven-year cycle. We are approaching or within one of those peaks now.
The Sun shines about 0.1 percent brighter during one of these 11-year peaks. That miniscule amount is accompanied by a 10-fold increase in Extreme Ultraviolet (EUV) radiation. That may have some influence on the climate.
The upper atmosphere of the Earth takes the brunt of these changes and some changes may trickle down to the surface.
The largest water body covering the surface area of the Earth is the Pacific Ocean. It is possible that during these solar radiation peaks that some climatic influence reaches the Earth according to some scientists.
The La Niña pattern found within the Central Pacific appears to have some correlation to the 11-year solar peak period. La Niña is a cooling of the surface of the Central Pacific by as much as 10C. That translates to Bandera County as drought.
La Niña is now moving into a neutral period in the midst of the solar peak in activity. The correlation may be in an evolutionary flux due to global warming.
Space weather is part of our climate system. There is a very interesting web site devoted to space weather. It covers not only solar activity and its impact on Earth, but it also covers approaching asteroids that could kill us all. http://www.spaceweather.com/
Solar weather and radiation eruptions reaching the surface of the Earth can interfere with radio signals and knock out satellite communications.
Solar storms that reach the Earth's surface have the potential to knock out large electrical transformers in unusual circumstances.
The United States power grid is vulnerable to very large solar storms.
The highest risk areas to solar storms are located across Alaska, Canada and the Pacific Northwest. A mega solar storm that could impact the rest of the United States is about a 2-3 percent probability.
Global warming greenhouse still remains the largest factor for climate change. Other factors could be volcanic eruption and solar storm effects.

Weekly Rainfall = 0.00"
Cumulative Rainfall = 3.14"
Departure From Normal = +1.42"
Tarpley Glen Rose WL = 39.34'
Bandera Hosston WL = 428.84'
Hondo (USGS) Flow = 0.97 cfs
Williams Flow = 1.48 cfs
Medina (USGS) Flow = 26.00 cfs
Medina (USGS) Lake = -73.02'
High (F°) = 70°
Low (F°) = 22°
01-23-13 @ 8:00 am