Latest topics
» POOFness for JULY 18: SYSTEM IS WORKING WELL SO KEEP SENDING ME MONEY!
Today at 2:52 am by robert18

» Jerzy Babkowski (AKA ZAP) Canadian Scammer! Fraud! Report! Investigate!
Today at 2:45 am by robert18

» Regarding Anna Von Reitz — Manna World Trust, AI, Quantum, and More
Today at 1:58 am by MartyM

» Jerzy Babkowski (AKA ZAP) "The Hutchison Effect Fraud" - Meet Team Member Karla!
Yesterday at 11:44 pm by RamblerNash

» How is RMN doing with all the ZAP crap?
Yesterday at 11:19 pm by RamblerNash

» Drone Reveals Massive Stonehenge-Like Circular Monument in Ireland
Yesterday at 10:37 pm by PurpleSkyz

» Planets Align/Quakes Begin/Ring of Fire
Yesterday at 10:34 pm by PurpleSkyz

» Trump’s SS Agent Has Stroke?
Yesterday at 10:32 pm by PurpleSkyz

» BREAKING: YELLOWSTONE DECLARES STATE OF EMERGENCY AS 100-FT FISSURE SPARKS URGENT PARK CLOSURE
Yesterday at 5:24 pm by PurpleSkyz

» 7/19/2018 -- MULTIPLE Earthquake forecast hits -- Alaska M6.0 EQ strikes warned area
Yesterday at 1:59 pm by PurpleSkyz

» Sex-Changing Weed Killer: Syngenta Herbicide Turns Male Frogs Into Females
Yesterday at 1:57 pm by PurpleSkyz

» UPDATES - Archaeologists Prepare To Open Giant Black Sarcophagus Despite Warnings
Yesterday at 12:38 pm by PurpleSkyz

» Never Doubt It By Anna Von Reitz
Yesterday at 12:35 pm by PurpleSkyz

» NIBIRU News ~ Black Star Update
Yesterday at 11:23 am by PurpleSkyz

» * Trifecta of Celestial Wonders * Eyes On The Skies *
Yesterday at 11:19 am by PurpleSkyz

» NASA Catches 3 UFO's In A Triangular Formation On Camera Then Cuts Feed During An STS Mission.
Yesterday at 11:18 am by PurpleSkyz

» Giant Stone Spheres Discovered On Artic Island Baffle Scientists
Yesterday at 11:13 am by PurpleSkyz

» UFO News ~ UFOs on NASA official images from the satellite SOHO LASCO C3 plus MORE
Yesterday at 11:10 am by PurpleSkyz

» NIBIRU News ~ Planet X Seen Stealing Energy From Earths Sun plus MORE
Yesterday at 11:04 am by PurpleSkyz

» Dozens of Long White Structures On Moons Surface Found
Yesterday at 10:58 am by PurpleSkyz

» THOSE SONIC ATTACKS ARE SPREADING, BUT THE REAL QUESTION IS…
Yesterday at 10:56 am by PurpleSkyz

» FULL Benjamin Fulford Update July 16, 2018
Yesterday at 10:50 am by PurpleSkyz

» AMAZING NEW COMET ENTERS INNER SOLAR SYSTEM
Yesterday at 10:41 am by PurpleSkyz

» Heather Ann Tucci Jarraf in MAJOR Main Stream Media!
Yesterday at 10:39 am by PurpleSkyz

» Linda Moulton Howe & Peter Levenda
Yesterday at 10:23 am by PurpleSkyz


CLICK THE SUBSCRIBE BUTTON BELOW TO RECEIVE OUR DAILY NEWSLETTER

A 2ND EMAIL COMPLETES THE ACTIVATION PROCESS




CLICK THE PURPLE BUTTON TO VIEW OUR LATEST POSTS



You are not connected. Please login or register

Out Of Mind » SOLAR & PLANETARY ALERTS & INFO » ATMOSPHERIC CHANGES » G2 - Moderate geomagnetic storm, aurora seen as far south as Colorado

G2 - Moderate geomagnetic storm, aurora seen as far south as Colorado

Go down  Message [Page 1 of 1]

PurpleSkyz

avatar
Admin
G2 - Moderate geomagnetic storm, aurora seen as far south as Colorado


Posted by TW on April 22, 2017



 

A potent coronal hole has become geoeffective and possibly in a combination with an April 18 CME is causing geomagnetic storms reaching G2 levels. This is the second of two geoeffective coronal holes to affect Earth this week. The effects are expected to persist through April 24.
The solar wind parameters during the past 24 hours were indicative of waning influence of positive polarity coronal hole high speed stream (CH HSS), the first to affect Earth this week. After 11:00 UTC on April 21, observatories detected an enhancement in solar wind parameters, possibly from the periphery of a coronal mass ejection (CME) produced on April 18. This CME was not expected to affect Earth, as models showed it had no geoeffective component. However, it seems it was partially Earth-directed and our magnetic field received a glancing blow.
The total magnetic field strength (Bt) was near 5 nT at 11:15 UTC on April 21, when a steady increase to a peak of 14 nT at 16:13 UTC was observed. Bz was variable between +13/-11 nT, with a maximum southward value observed at 15:47 UTC. The solar wind environment decreased from 550 km/s to a low of 453 km/s around 11:15 UTC. Afterward, an abrupt increase in winds speeds occurred to a peak of just under 700 km/s at 20:50 UTC. Phi angle transitioned from the positive sector to the negative sector after 15:45 UTC.
The greater than 2 MeV electron flux briefly reached high levels with a peak flux of 2,810 pfu observed at 15:45 UTC on April 21. The greater than 10 MeV proton flux remained at background values.
The geomagnetic field reached G1 - Minor storm levels at 20:32 UTC, due to the likely passage of a transient feature combined with the onset of a co-rotating interaction region (CIR) preceding CH HSS influence.
Geomagnetic K-index of 6 (G2 - Moderate geomagnetic storm) threshold was reached at 05:59 UTC on April 22. Under G2 conditions, area of impact is primarily poleward of 55 degrees Geomagnetic Latitude. Power grid fluctuations can occur and high-latitude power systems may experience voltage alarms. Satellite orientation irregularities may occur as well as increased drag on low Earth-orbit satellites. HF (high frequency) radio propagation can fade at higher latitudes and aurora may be seen at mid latitudes.

On April 21 and during early UTC hours of April 22, aurora was reportedly seen as far south as Scotland and Denmark in Europe and South Dakota and Colorado in the United States.







Solar activity on April 21 was very low. There were 3 numbered sunspot regions on the Earth side of the Sun. Region 2651 (beta) continued to decay while Regions 2652 (alpha) and 2653 (alpha) remained mostly inactive. 

Forecast

Enhancements in the solar wind are likely to be observed from April 22 to 24 due to combined effects of the April 18 CME transitioning into the negative polarity CH HSS.
The greater than 2 MeV electron flux is expected to be at normal to moderate levels during the same period due to increased geomagnetic activity associated with CH HSS effects and the likely passage of a transient feature. No solar radiation storms are expected. SWPC forecasters estimate there is only 1% chance for S1 or greater solar radiation storm over the next 3 days.
The geomagnetic field is expected to continue to reach G1 - Minor storm levels on April 22 due to current enhancements in the solar wind. G2 - Moderate storm levels are likely on April 23 from the negative polarity CH HSS. Continued effects are expected on April 24 with active to G1 - Minor storm levels expected through the day as the CH HSS effects persist.
Solar activity is expected to be very low with a chance for C-class flare activity. Forecasters estimate 5% chance for M-class and 1% chance for X-class solar flares over the next three days.
Featured image: Taken by Christian Begeman on April 21, 2017 about 5 km (3 miles) northwest of Hartford, South Dakota at Scotts Slough (via Spaceweather.com)

Thanks to: https://watchers.news



  

Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum