[SFDXA] GEOMAGNETIC STORM WARNING

[Bill]

/From Tony N2MFT:/

*GEOMAGNETIC STORM WARNING: *A solar wind stream is approaching Earth. 
It could cause a minor G1-class 
<https://spaceweather.com/glossary/g1.jpg> geomagnetic storm when it 
hits Earth' magnetic field on *Feb. 21st*. The gaseous material is 
flowing faster than 500 km/s from an equatorial hole 
<https://spaceweather.com/images2021/19feb21/ch.jpg> in the sun's 
atmosphere. *Aurora alerts:* SMS Text <https://spaceweatheralerts.coom/>.

*Solar wind*
speed: *401.1 *km/sec
density: *10.7 *protons/cm^3
more data: ACE 
<https://services.swpc.noaa.gov/images/ace-mag-swepam-24-hour.gif>, 
DSCOVR <https://www.swpc.noaa.gov/products/real-time-solar-wind>
Updated: Today at 1659 UT

*X-ray Solar Flares*
6-hr max: *A4 *1536 UT Feb19
24-hr: *B1 *0901 UT Feb19
explanation <https://spaceweather.com/glossary/flareclasses.html> | more 
data <https://www.swpc.noaa.gov/products/goes-x-ray-flux-dynamic-plot>
Updated: Today at: 1705 UT

Daily Sun: 19 Feb 
21<https://spaceweather.com/images2021/19feb21/hmi1898.gif>

These two new northern sunspots have ended a string of 14 consecutive 
spotless days. Credit: SDO/HMI

*Sunspot number: 12 *
What is the sunspot number?
<https://spaceweather.com/glossary/sunspotnumber.html>Updated 19 Feb 2021

*Spotless Days
*Current Stretch: 0 days
2021 total: 31 days (62%)
2020 total: 208 days (57%)
2019 total: 281 days (77%)
2018 total: 221 days (61%)
2017 total: 104 days (28%)
2016 total: 32 days (9%)
2015 total: 0 days (0%)
2014 total: 1 day (<1%)
2013 total: 0 days (0%)
2012 total: 0 days (0%)
2011 total: 2 days (<1%)
2010 total: 51 days (14%)
2009 total: 260 days (71%)
2008 total: 268 days (73%)
2007 total: 152 days (42%)
2006 total: 70 days (19%)
Updated 19 Feb 2021

*Thermosphere Climate Index*
today: 4.75x10^10 WCold
Max: 49.4x10^10 W Hot (10/1957)
Min: 2.05x10^10 W Cold (02/2009)
explanation 
<https://spaceweatherarchive.com/2018/09/27/the-chill-of-solar-minimum/> | 
*more data:* gfx 
<https://spaceweather.com/images2021/19feb21/TCI_Daily_NO_Power_Percentiles.png>, 
txt <https://spaceweather.com/images2021/19feb21/tci_info.txt>
Updated 19 Feb 2021

*The Radio Sun*
10.7 cm flux: *71 *sfu
explanation <https://www.ips.gov.au/Educational/2/2/5> | more data 
<https://services.swpc.noaa.gov/images/solar-cycle-10-cm-radio-flux.gif>
Updated 19 Feb 2021

Cosmic Rays Solar Cycle 25 is beginning, and this is reflected in the 
number of cosmic rays entering Earth's atmosphere. Neutron counts from 
the University of Oulu's Sodankyla Geophysical Observatory show that 
cosmic rays reaching Earth are slowly declining--a result of the 
yin-yang relationship between the solar cycle and cosmic rays.
*
Oulu Neutron Counts*
Percentages of the Space Age average:
today: +7.9% High
48-hr change: +0.5%
Max: +11.7% Very High (12/2009)
Min: -32.1% Very Low (06/1991)
explanation 
<https://spaceweatherarchive.com/2019/10/03/cosmic-rays-are-nearing-a-space-age-maximum/> |**more 
data <https://cosmicrays.oulu.fi/>
Updated 19 Feb 2021 @ 1700 UT

<https://cosmicrays.oulu.fi/>

Current Auroral Oval:

<https://services.swpc.noaa.gov/images/aurora-forecast-northern-hemisphere.jpg>

Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/Ovation

*Planetary K-index*
Now: *Kp= 4 *unsettled
24-hr max: *Kp= 4 *unsettled
explanation <https://www.spaceweather.com/glossary/kp.html> | more data
<https://www.swpc.noaa.gov/products/planetary-k-index>

*Interplanetary Mag. Field*
B_total : *9.9 *nT
B_z : *-7.9 *nT *south *
more data: ACE 
<https://services.swpc.noaa.gov/images/ace-mag-24-hour.gif>, DSCOVR 
<https://www.swpc.noaa.gov/products/real-time-solar-wind>
Updated: Today at 1700 UT

Coronal Holes: 19 Feb 21

<https://spaceweather.com/images2021/19feb21/coronalhole_sdo_blank.jpg>
Solar wind flowing from this coronal hole should reach Earth on Feb. 
21-22.Credit: SDO/AIA

Noctilucent Clouds The southern hemisphere season for noctilucent clouds 
is coming to an end. Electric-blue clouds above Antarctica should 
disappear by the end of the month.

<https://spaceweather.com/DAISY_PICS/current_daisy.png>

Switch view: Europe, USA, Asia, Polar

Updated at:

SPACE WEATHER
NOAA Forecasts 	

Updated at: 2021 Feb 18 2200 UTC

FLARE
	
0-24 hr
	
24-48 hr
CLASS M
	
01 %
	
01 %
CLASS X
	
01 %
	
01 %

Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are 
given for three activity levels: active 
<https://spaceweather.com/glossary/geostorm.html>, minor storm 
<https://spaceweather.com/glossary/geostorm.html>, severe storm 
<https://spaceweather.com/glossary/geostorm.html>

Updated at: 2021 Feb 18 2200 UTC

Mid-latitudes

	
0-24 hr
	
24-48 hr
ACTIVE
	
10 %
	
15 %
MINOR
	
01 %
	
05 %
SEVERE
	
01 %
	
01 %

High latitudes

	
0-24 hr
	
24-48 hr
ACTIVE
	
15 %
	
15 %
MINOR
	
20 %
	
25 %
SEVERE
	
10 %
	
25 %

	

	


	

*GEOMAGNETIC STORM WARNING: *A solar wind stream is approaching Earth. 
It could cause a minor G1-class 
<https://spaceweather.com/glossary/g1.jpg> geomagnetic storm when it 
hits Earth' magnetic field on *Feb. 21st*. The gaseous material is 
flowing faster than 500 km/s from an equatorial hole 
<https://spaceweather.com/images2021/19feb21/ch.jpg> in the sun's 
atmosphere. *Aurora alerts:* SMS Text <https://spaceweatheralerts.coom/>.


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