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Path: ...!weretis.net!feeder9.news.weretis.net!panix!.POSTED.panix6.panix.com!rri.panix.com!robomod!not-for-mail From: SWPC.Webmaster@noaa.gov Newsgroups: rec.radio.amateur.dx,rec.radio.amateur.space,rec.radio.shortwave,rec.radio.info Subject: Weekly Highlights of Solar and Geomagnetic Activity, 10 - 16 February 2025 Followup-To: rec.radio.amateur.dx,rec.radio.amateur.space,rec.radio.shortwave Date: Mon, 17 Feb 2025 13:00:05 EST Organization: NOAA Space Weather Prediction Center Approved: RRI Admin <rec-radio-info-request@panix.com> Message-ID: <4YxVmd4gHbz1ZT0@panix2.panix.com> Injection-Info: reader2.panix.com; posting-host="panix6.panix.com:166.84.1.6"; logging-data="2674"; mail-complaints-to="abuse@panix.com" X-RRI-Policy: http://www.panix.com/~rram/usenet/rri/index.html X-RRI-Info-1: Send submissions to rec-radio-info@panix.com X-RRI-Info-2: Send technical complaints to rec-radio-info-request@panix.com X-RRI-Info-3: Send complaints about policy to rec-radio-info-request@panix.com X-Comment-1: The moderators do not necessarily agree or disagree with this article. X-Comment-2: Moderators do not verify the accuracy of posted information. X-Comment-3: Acceptance does not convey approval of any external references. X-Robomod: STUMP, ichudov@algebra.com (Igor Chudov), C++/Perl/Unix Consulting X-Moderation-1: Hassle-Free commercial hosting of moderation sites available X-Moderation-2: See http://www.algebra.com/~ichudov/stump X-Spam-DCC: : Bytes: 3572 Lines: 50 :Product: Weekly Highlights and Forecasts :Issued: 2025 Feb 17 0126 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC contact on the Web # https://www.swpc.noaa.gov/content/subscription-services # # Weekly Highlights and Forecasts # Highlights of Solar and Geomagnetic Activity 10 - 16 February 2025 Solar activity reached moderate levels on 10-11 and 13-14 Feb, with low levels of activity observed on 12 and 15-16 Feb. In total, six M1 flares (R1-Minor) were observed throughout the week from Regions 3981 (N07, L=341, class/area=Esi/190 on 10 Feb), 3990 (S10, L=191, class/area=Dki/310 on 14 Feb), and 3992 (S06, L=243, class/area=Dai/210 on 13 Feb). No proton events were observed at geosynchronous orbit. The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels on 10 Feb, with high levels observed on 11-16 Feb. Geomagnetic field activity reached G1 (Minor) levels on 10 and 14-15 Feb, and active levels on 11-13 and 16 Feb, due to negative polarity CH HSS influences. Forecast of Solar and Geomagnetic Activity 17 February - 15 March 2025 Solar activity is expected to range from low to moderate levels throughout the period. There is a varying chance for R1-R2 (Minor-Moderate) events, and a slight chance for R3 or greater events. No proton events are expected at geosynchronous orbit, barring significant flare activity. The greater than 2 MeV electron flux at geosynchronous orbit is likely to reach high levels on 18-19 and 23 Feb, and 10-15 Mar. Normal to moderate levels are likely to prevail throughout the remainder of the period. Geomagnetic field activity is likely to reach G1 (Minor) levels on 28 Feb, 09 and 12-14 Mar, with active levels likely on 17-18 Feb, and on 01 and 15 Mar, due primarily to CH HSS influences. Quiet and quiet to unsettled conditions are expected to prevail throughout the remainder of the period.