HF radio communications remain unstable this afternoon here in Upstate NY. The effects of this weeks solar storms are expected to continue to affect HF communications through the weekend.
More info at: https://www.swpc.noaa.gov/
Showing posts with label Sun_Solar Event. Show all posts
Showing posts with label Sun_Solar Event. Show all posts
Saturday, May 11, 2024
Significant HF radio effects from this weeks Solar events!
HF radio communications were barely possible this morning here in Upstate NY. The effects of this weeks solar storms are expected to continue for the next few days. If cloud cover diminishes we may be able to see some Aurora activity this evening here in CNY!
More info at: https://www.swpc.noaa.gov/
Space weather info: https://solarham.com/
Friday, May 10, 2024
Severe (G4) Geomagnetic Storm Watch for the evening of Friday, May 10
NOAA FORECASTS SEVERE SOLAR STORM; MEDIA AVAILABILITY SCHEDULED FOR FRIDAY, MAY 10
For Immediate Release [May 9, 2024]
MEDIA ADVISORY
NOAA forecasts severe solar storm; media availability scheduled for May 10
NOAA’s Space Weather Prediction Center (SWPC) — a division of the National Weather Service — is monitoring the sun following a series of solar flares and coronal mass ejections (CMEs) that began on May 8. Space weather forecasters have issued a Severe (G4) Geomagnetic Storm Watch for the evening of Friday, May 10. Additional solar eruptions could cause geomagnetic storm conditions to persist through the weekend.
A large sunspot cluster has produced several moderate to strong solar flares since Wednesday at 5:00 am ET. At least five flares were associated with CMEs that appear to be Earth-directed. SWPC forecasters will monitor NOAA and NASA’s space assets for the onset of a geomagnetic storm.
CMEs are explosions of plasma and magnetic fields from the sun’s corona. They cause geomagnetic storms when they are directed at Earth. Geomagnetic storms can impact infrastructure in near-Earth orbit and on Earth’s surface, potentially disrupting communications, the electric power grid, navigation, radio and satellite operations. SWPC has notified the operators of these systems so they can take protective action. Geomagnetic storms can also trigger spectacular displays of aurora on Earth. A severe geomagnetic storm includes the potential for aurora to be seen as far south as Alabama and Northern California.
WHAT: Media availability via teleconference on the unfolding space weather event and Geomagnetic Storm Watch.
WHO: Experts from NOAA’s Space Weather Prediction Center
WHEN: Friday, May 10, 2024; 10 a.m. EDT
CALL-IN #: 630-395-0205
INTERNATIONAL (TOLL FREE): 800-988-9736
PASSCODE: 8186632
VIDEO: https://www.youtube.com/watch?v=-dr2BIlDGDk&feature=youtu.be.
Video Caption: NOAA’s GOES-16 satellite captured the eruption from the sun that occurred around 2 p.m. EDT on May 9, 2024. Credit: NOAA
NOAA's Space Weather Prediction Center is the official source for space weather forecasts, watches, warnings and alerts. Visit www.spaceweather.gov for updates. The public can subscribe to receive NOAA space weather alerts, warnings, and watch information at pss.swpc.noaa.gov.
Contact: Erica Grow Cei, erica.grow.cei@noaa.gov, 202-853-6088
------------------------------------------------------------------------------------------------------
MORE INFO AT: https://www.swpc.noaa.gov/
Sunday, April 10, 2022
Thursday, June 24, 2021
"The Termination Event" .......more predictions on Solar Cycle 25
For the last year or so we have heard several predictions for Solar Cycle 25. Originally predicted to be a weak cycle by both NOAA and NASA, a new concept predicts something quite different.
In this new concept in solar physics solar cycle 25 hasn’t even started yet. Scientists at the the National Center for Atmospheric Research (NCAR) predict that when oppositely-charged bands magnetism collide at the Sun’s equator, they obliterate each other and they “terminate.” Based on their research into previous solar cycles, it’s this event that determines the magnitude of the solar cycle, as well as when the cycle begins and ends.
If that “termination event” happens soon it could help validate this new theory and also see the new solar cycle 25 become one of the most active ever observed.
Learn more in this article from SpaceWeather.com: https://spaceweatherarchive.com/2021/06/11/the-termination-event/
NASA's official Cycle 25 prediction: https://www.nasa.gov/feature/goddard/2020/what-will-solar-cycle-25-look-like-sun-prediction-model
Tuesday, December 15, 2020
Sunspot Cycle 25 - best ever?
Story from the Science Daily:
 |
| "Official" NASA prediction |
The article points out the evolving science and new studies that look to better understand the sunspot cycle. "Scientists have struggled to predict both the length and the strength of sunspot cycles because we lack a fundamental understanding of the mechanism that drives the cycle," said NCAR Deputy Director Scott McIntosh, a solar physicist who led the study. "If our forecast proves correct, we will have evidence that our framework for understanding the Sun's internal magnetic machine is on the right path.
Things could be looking up for those of us who enjoy the fruits of a more active sunspot cycles for enhancing our amateur communications. Read more about these new predictions below.
Link to the Science Daily article: https://www.sciencedaily.com/releases/2020/12/201207142308.htm
NASA's Cycle 25 official prediction: https://www.nasa.gov/feature/goddard/2020/what-will-solar-cycle-25-look-like-sun-prediction-model
Friday, March 22, 2019
Geomagnetic storm warning - Saturday 3/23/19
From Spaceweather.com, link: http://spaceweather.com/
GEOMAGNETIC STORM WARNING: NOAA forecasters say there is a 75% chance of geomagnetic storms on March 23rd when a coronal mass ejection (CME) is expected to sideswipe Earth's magnetic field. Storm levels could reach category G2, which is moderately strong. During G2-class storms, auroras may be seen in northern-tier US states as far south as New York and Idaho. Aurora alerts: SMS text, email.
BIG CRACKLING SUNSPOT: A few days ago, sunspot AR2736 didn't exist. Now, the rapidly-growing active region (movie) stretches across more than 100,000 km of the solar surface and contains multiple dark cores larger than Earth. Moreover, it has a complicated magnetic field that is crackling with C-classsolar flares. The sunspot is inset in this magnetic map of the sun from NASA's Solar Dynamics Observatory:
Thursday, September 11, 2014
Solar Storm
A strong solar flare is making its way to Earth, but the worst of its power looks like it will barely skim above the planet. A "strong" solar flare that launched off the sun Wednesday afternoon could cause some fluctuations in Earth's power grid and slight disturbances in satellites and radio transmissions on Friday and Saturday.
Major disruptions are not expected, even though the flare was classified as an "X-class" flare, which is at the high end of the solar flare scale. Wednesday's flare followed a weaker flare late Monday.
It has been several years since Earth has had a solar storm of this size coming from sunspots smack in the middle of the sun, said Tom Berger, director of the Space Weather Prediction Center in Boulder, Colorado. The flare on the sun barely hits the "extreme" on forecasters' scale, but with its worst effects missing Earth it is only looking "potentially strong" at most when it arrives at Earth as a solar storm, he said.
New calculations from satellite data show that the worst of the energetic particles streaming from the sun likely will go north or above Earth this time, Berger said late Wednesday.
So while the power grid may see fluctuations because the storm will cause changes in Earth's magnetic field, it won't knock power systems off line, Berger said. It may cause slight disturbances in satellites and radio transmissions but nothing major.
more details at SolarHam.com
:
Updated 09/11/2014 @ 11:50 UTC
Solar Update
Info from ABC, USA Today, SolarHam.com
Major disruptions are not expected, even though the flare was classified as an "X-class" flare, which is at the high end of the solar flare scale. Wednesday's flare followed a weaker flare late Monday.
It has been several years since Earth has had a solar storm of this size coming from sunspots smack in the middle of the sun, said Tom Berger, director of the Space Weather Prediction Center in Boulder, Colorado. The flare on the sun barely hits the "extreme" on forecasters' scale, but with its worst effects missing Earth it is only looking "potentially strong" at most when it arrives at Earth as a solar storm, he said.
New calculations from satellite data show that the worst of the energetic particles streaming from the sun likely will go north or above Earth this time, Berger said late Wednesday.
So while the power grid may see fluctuations because the storm will cause changes in Earth's magnetic field, it won't knock power systems off line, Berger said. It may cause slight disturbances in satellites and radio transmissions but nothing major.
more details at SolarHam.com
:
Updated 09/11/2014 @ 11:50 UTC
Solar Update
Info from ABC, USA Today, SolarHam.com
Subscribe to:
Posts (Atom)