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Fast Wind Slows a Solar Storm as Hurricane Helene Builds | Space Weather Spotlight 26 September 2024
This week our Sun keeps activity in a mild holding pattern. This is good news, especially since Hurricane Helene is expected to reach Category 4 strength by the time it reaches landfall Thursday evening. We have been mildly storming over the past 24 hours, thanks to some fast solar wind, and we are anticipating a grazing solar storm blow to follow. However, the storm arrival is overdue. It is highly possible this delay is due to the storm being slowed down by the fast wind stream, which means a weaker storm impact than initially anticipated. Although aurora photographers may be disappointed, amateur radio and Search and Rescue/UAV operators should be relieved, as the radio and GPS signal conditions should be only mildly affected on the nightside over the next few days. Luckily, most of the solar active regions in Earth-view have also been reasonably quiet, only firing short-lived, low-level M-class flares. This means the risk for radio blackouts on Earth's dayside will remain in the low to moderate range, allowing hurricane watch nets to have decent dayside radio propagation as Hurricane Helene makes landfall on Thursday. Amateur radio operators and first responders working alongside them, be advised that communications & GPS reception may be more degraded on the nightside than on the dayside until the solar storm passes. Learn the details of the coming solar storm, see where aurora may be visible, find out what new regions are rotating into Earth view, and discover what else our Sun has in store.<br />This Space Weather News forecast sponsored in part by Millersville University:<br /><a href="https://www.millersville.edu/swen" target="_blank" rel="nofollow">https://www.millersville.edu/swen</a><br /><br />Want early access to these forecasts, tutorials on Space Weather, & more? Visit:<br /><a href="https://patreon.com/SpaceweatherWoman" target="_blank" rel="nofollow">https://patreon.com/SpaceweatherWoman</a><br /><br />For daily and often hourly updates (during active times) visit me on Twitter:<br /><a href="https://twitter.com/TamithaSkov" target="_blank" rel="nofollow">https://twitter.com/TamithaSkov</a><br /><br />For a more in-depth look at the data and images highlighted in this video see these links below.<br /><br />Solar Imaging and Analysis:<br />SDO: <a href="http://sdo.gsfc.nasa.gov/data/" target="_blank" rel="nofollow">http://sdo.gsfc.nasa.gov/data/</a> <br />Helioviewer: <a href="http://www.helioviewer.org/" target="_blank" rel="nofollow">http://www.helioviewer.org/</a><br />Flare Analysis: <a href="http://www.lmsal.com/solarsoft/latest_events/" target="_blank" rel="nofollow">http://www.lmsal.com/solarsoft/latest_events/</a><br />Computer Aided CME Tracking CACTUS: <a href="http://www.sidc.oma.be/cactus/out/latestCMEs.html" target="_blank" rel="nofollow">http://www.sidc.oma.be/cactus/out/latestCMEs.html</a><br />GOES Xray: <a href="http://www.swpc.noaa.gov/rt_plots/xray_1m.html" target="_blank" rel="nofollow">http://www.swpc.noaa.gov/rt_plots/xray_1m.html</a><br />SOHO: <a href="http://sohodata.nascom.nasa.gov/" target="_blank" rel="nofollow">http://sohodata.nascom.nasa.gov/</a> <br />Stereo: <a href="http://stereo.gsfc.nasa.gov/" target="_blank" rel="nofollow">http://stereo.gsfc.nasa.gov/</a><br />GONG magnetic field synoptic movie: <a href="https://gong.nso.edu/data/magmap/standard_movie.html" target="_blank" rel="nofollow">https://gong.nso.edu/data/magmap/standard_movie.html</a><br />GONG magnetic field synoptic charts: <a href="http://gong.nso.edu/data/magmap/" target="_blank" rel="nofollow">http://gong.nso.edu/data/magmap/</a><br />LMSAL Heliophysics Events HEK <a href="http://www.lmsal.com/isolsearch" target="_blank" rel="nofollow">http://www.lmsal.com/isolsearch</a><br /><br />Solar Wind:<br />DISCOVR solar wind: <a href="http://www.swpc.noaa.gov/products/real-time-solar-wind" target="_blank" rel="nofollow">http://www.swpc.noaa.gov/products/real-time-solar-wind</a> <br />ACE Solar Wind: <a href="http://www.swpc.noaa.gov/products/ace-real-time-solar-wind" target="_blank" rel="nofollow">http://www.swpc.noaa.gov/products/ace-real-time-solar-wind</a><br />NASA/CCMC/M2M Enlil Solar Storm Prediction Model: <a href="https://iswa.gsfc.nasa.gov/IswaSystemWebApp/iSWACygnetStreamer?timestamp=2038-01-23+00%3A44%3A00&window=-1&cygnetId=261" target="_blank" rel="nofollow">https://iswa.gsfc.nasa.gov/IswaSystemWebApp/iSWACygnetStreamer?timestamp=2038-01-23+00%3A44%3A00&window=-1&cygnetId=261</a><br />NOAA/SWPC Enlil Solar Storm Prediction Model: <a href="http://www.swpc.noaa.gov/products/wsa-enlil-solar-wind-prediction" target="_blank" rel="nofollow">http://www.swpc.noaa.gov/products/wsa-enlil-solar-wind-prediction</a><br /><br />Magnetosphere, Ionosphere, Atmosphere:<br />GOES Magnetometer: <a href="http://www.swpc.noaa.gov/products/goes-magnetometer" target="_blank" rel="nofollow">http://www.swpc.noaa.gov/products/goes-magnetometer</a><br />Ionosphere D-Region Absorption (DRAP) model: <a href="http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap/" target="_blank" rel="nofollow">http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap/</a><br />Radio Propagation: <a href="https://www.tvcomm.co.uk/g7izu/atlantic-mf-hf-propagation-20min-persistence/" target="_blank" rel="nofollow">https://www.tvcomm.co.uk/g7izu/atlantic-mf-hf-propagation-20min-persistence/</a><br />Near-Earth radiation environment: <a href="https://spaceweather.gfz-potsdam.de/products-data/forecasts" target="_blank" rel="nofollow">https://spaceweather.gfz-potsdam.de/products-data/forecasts</a><br />Auroral Oval Ovation Products: <a href="http://www.swpc.noaa.gov/products/aurora-30-minute-forecast" target="_blank" rel="nofollow">http://www.swpc.noaa.gov/products/aurora-30-minute-forecast</a><br />Global 3-hr Kp index: <a href="http://www.swpc.noaa.gov/products/planetary-k-index" target="_blank" rel="nofollow">http://www.swpc.noaa.gov/products/planetary-k-index</a><br />GEOCHRON Weather Display: www.geochron.com<br />USGS Ground Magnetometers: <a href="http://geomag.usgs.gov/realtime/" target="_blank" rel="nofollow">http://geomag.usgs.gov/realtime/</a><br /><br />Multi-Purpose Space Environment Sites:<br />NOAA/SWPC: <a href="http://www.swpc.noaa.gov" target="_blank" rel="nofollow">http://www.swpc.noaa.gov</a><br />SOLARHAM: <a href="http://www.solarham.net/index.htm" target="_blank" rel="nofollow">http://www.solarham.net/index.htm</a><br />Spaceweather: <a href="http://spaceweather.com" target="_blank" rel="nofollow">http://spaceweather.com</a> <br />iSWA: <a href="http://iswa.gsfc.nasa.gov/iswa/iSWA.html" target="_blank" rel="nofollow">http://iswa.gsfc.nasa.gov/iswa/iSWA.html</a> <br /><br />Definition of Geomagnetic Storm, Radiation Storm, and Radio Blackout Levels:<br /><a href="http://www.swpc.noaa.gov/NOAAscales/" target="_blank" rel="nofollow">http://www.swpc.noaa.gov/NOAAscales/</a><br /><br />None of this would be possible without the hard work and dedication of those who have provided all of this data for public use. <br /><br />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.<br />...<br /><a href="https://www.youtube.com/watch?v=B9jWbAVEpZw" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=B9jWbAVEpZw</a>
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