Our Sun's Hot Longitude and a Side of Aurora | Space Weather News 26 May 2025

This Space Weather News forecast sponsored in part by Millersville University:
https://www.millersville.edu/swen
Our Sun remains a bit choosy this week, only allowing activity to pick up at a "hot longitude" just west of center disk. Region 4098 is the first to take the bait, grow rapidly over the past 48 hours and firing off some short-lived but large flares. The largest, an X1.1-flare gave us a brief R3-level radio blackout, but the radio noise from this region continues to be a problem on the dayside radio bands. Amateur radio operators should expect sporadic radio blackouts at the R2-level to continue, especially with the chance that other Regions like 4092, 4093, and old Region 4094 might become flare-active as they rotate over that same hot longitude later this week. Despite the flares, no solar storms are Earth-directed, but aurora photographers can look forward to the fast solar wind that will sweep past Earth starting around the 28th. This wind should be enough to bump us to minor storm levels at high latitudes and might even give us a little show at mid-latitudes. With us crossing through a new moon, we may not need strong aurora for a good show (at least in the southern hemisphere without the midnight Sun). Learn the details of the coming fast wind, watch the big solar flares develop, and see what else our Sun has in store this week.
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For daily and often hourly updates (during active times) visit me on Twitter:
https://twitter.com/TamithaSkov

For a more in-depth look at the data and images highlighted in this video see these links below.

Solar Imaging and Analysis:
SDO: http://sdo.gsfc.nasa.gov/data/
Helioviewer: http://www.helioviewer.org/
Flare Analysis: http://www.lmsal.com/solarsoft/latest_events/
Computer Aided CME Tracking CACTUS: http://www.sidc.oma.be/cactus/out/latestCMEs.html
GOES Xray: http://www.swpc.noaa.gov/rt_plots/xray_1m.html
SOHO: http://sohodata.nascom.nasa.gov/
Stereo: http://stereo.gsfc.nasa.gov/
GONG magnetic field synoptic movie: https://gong.nso.edu/data/magmap/standard_movie.html
GONG magnetic field synoptic charts: http://gong.nso.edu/data/magmap/
LMSAL Heliophysics Events HEK http://www.lmsal.com/isolsearch

Solar Wind:
DISCOVR solar wind: http://www.swpc.noaa.gov/products/real-time-solar-wind
ACE Solar Wind: http://www.swpc.noaa.gov/products/ace-real-time-solar-wind
NASA/CCMC/M2M Enlil Solar Storm Prediction Model: https://iswa.gsfc.nasa.gov/IswaSystemWebApp/iSWACygnetStreamer?timestamp=2038-01-23+00%3A44%3A00&window=-1&cygnetId=261
NOAA/SWPC Enlil Solar Storm Prediction Model: http://www.swpc.noaa.gov/products/wsa-enlil-solar-wind-prediction

Magnetosphere, Ionosphere, Atmosphere:
GOES Magnetometer: http://www.swpc.noaa.gov/products/goes-magnetometer
Ionosphere D-Region Absorption (DRAP) model: http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap/
Radio Propagation: https://www.tvcomm.co.uk/g7izu/atlantic-mf-hf-propagation-20min-persistence/
Near-Earth radiation environment: https://spaceweather.gfz-potsdam.de/products-data/forecasts
Auroral Oval Ovation Products: http://www.swpc.noaa.gov/products/aurora-30-minute-forecast
Global 3-hr Kp index: http://www.swpc.noaa.gov/products/planetary-k-index
GEOCHRON Weather Display: www.geochron.com
USGS Ground Magnetometers: http://geomag.usgs.gov/realtime/

Multi-Purpose Space Environment Sites:
NOAA/SWPC: http://www.swpc.noaa.gov
SOLARHAM: http://www.solarham.net/index.htm
Spaceweather: http://spaceweather.com
iSWA: http://iswa.gsfc.nasa.gov/iswa/iSWA.html

Definition of Geomagnetic Storm, Radiation Storm, and Radio Blackout Levels:
http://www.swpc.noaa.gov/NOAAscales/

None of this would be possible without the hard work and dedication of those who have provided all of this data for public use.

Images c/o NASA/NOAA/ESA/CSA (most notably the superb SDO, SOHO, ACE, DSCOVR, STEREO, CCMC, M2M, JPL & DSN teams, amazing professionals, hobbyists, institutions, organizations, agencies and amateurs such as those at the USAF/HAARP, NICT, NOAA, USGS, Environment Canada, Natural Resources Canada, Intellicast, Catatania, rice.edu, wisc.edu, sonoma.edu ucalgary.ca, rssi.ru, ohio-state.edu, solen.info, and so much more. Thanks for making Space Weather part of our every day dialogue.

Дата на публикация: 1 юни, 2025
Категория: Друго

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