NOAA Space Weather Prediction Center Alerts and Historical Data … by Alice B. Clagett ..

Revised 7 September 2017 at 12:30 pm PDT. See text in green font below.

  • Up-to-Date Space Weather Alerts
  • NASA Space Weather Prediction Center Historical Data
  • NOAA Space Weather Scale Descriptions

Dear Ones,

UP-TO-DATE SPACE WEATHER ALERTS

Because of the incoming geostorm, I’ve taken a look at “Alerts, Watches and Warnings” from the NOAA Space Weather Prediction Center, http://www.swpc.noaa.gov/ ..

More technical, more detailed, and more prolific current NOAA Space Weather Prediction Center (SWPC) reports can be seen here: http://www.swpc.noaa.gov/products/alerts-watches-and-warnings ..

I notice that the Australian Government’s Bureau of Meteorology’s Space Weather Service (SWS) has the current detailed space weather data for Australia nicely formatted:

Link: “Space Weather Services,” http://www.sws.bom.gov.au/index.php … In the section “Today’s Space Weather” click on “Detailed Forecast” … That information is courtesy of the NOAA’s SWPC.

NASA SPACE WEATHER PREDICTION CENTER HISTORICAL DATA

NASA SWPC offers weekly historical reports on the NOAA’s National Centers for Environmental Information website. It looks like these are available as pdfs a few weeks after the fact.

To access these historical data, go to https://www.ngdc.noaa.gov/stp/spaceweather.html and then, under NOAA Space Weather Products,

Each weekly pdf contains Space Weather Highlights, Space Weather Outlook, and Space Weather Data.

NOAA SPACE WEATHER SCALE DESCRIPTIONS

NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation .. These describe the

  • geomagnetic storm (G), which relate to the planetary K (Kp) index,
  • solar radiation storm (S), which relate to the flux level of greater than 10 MeV (i.e., 10 million electron volt) particles (1), and
  • radio blackout space weather scales (R), which have to do with the strength of solar flares M1 through X20. (2)

These scales are labeled G1 through G5, S1 through S5, and R1 through R5, respectively.

In love, light and joy,
I Am of the Stars

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FOOTNOTES

(1) “In high-energy physics, the electronvolt is often used as a unit of momentum. A potential difference of 1 volt causes an electron to gain an amount of energy (i.e., 1 eV). This gives rise to usage of eV (and keV, MeV, GeV or TeV) as units of momentum, for the energy supplied results in acceleration of the particle.” –from “Electronvolt,” in Wikipedia, https://en.wikipedia.org/wiki/Electronvolt … WP:CC BY-SA

Note that “MeV and meV are multiples and submultiples of the electron volt unit referring to 1,000,000 eV and 0.001 eV, respectively.” –from “MEV,” in Wikipedia, https://en.wikipedia.org/wiki/MEV  … WP:CC BY-SA

Thus these two … MeV and meV are worlds apart in magnitude, based merely on the capitalization of the initial ‘M’ … or the lack thereof. The term ‘MeV’, sometimes referred to as ‘megaelectron volt’, pertains to a million electron volts of energy, which would mean very considerable acceleration of a particle sent forth from our Sun during a coronal mass ejection.

It seems to me that this might have to do with the solar wind speed data we see on Space Weather, www.spaceweather.com ..

(2) As there was a solar flare variously reported as X28 and X45 in 2003, this scale might be rendered, on the far end, unhelpful. For information on the 2003 X flare, see:

“Biggest Ever Solar Flare Was Even Bigger Than Thought,” from American Geophysical Union, 16 March 2004, https://www.sciencedaily.com/releases/2004/03/040316072425.htm ..

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Creative Commons License
Except where otherwise noted, this work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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space weather, NOAA, SWPC, astrogeophysics, solar events, Mev, particle acceleration, radio blackouts, geostorms, solar radiation, NASA,

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