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Propagation outlook from SWPC

:Product: Weekly Highlights and Forecasts :Issued: 2021 Dec 20 0238 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 13 – 19 December 2021 Solar activity ranged from very low to …

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Propagation News – 19 December 2021

After a period with zero sunspots we’re pleased to announce that the drought is over. There are now at least five active groups on the solar surface and this could even increase over the coming days. The solar flux index had leapt up to 103 from 89 on Thursday and could go even higher. This puts us in the fun …

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Propagation outlook from SWPC Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2021 Dec 13 0138 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 06 – 12 December 2021 Solar activity ranged from very low to …

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Propagation News – 12 December 2021

RSGB GB2RS News Team | December 10, 2021 The predicted elevated Kp index that we talked about last week didn’t amount to much at the end of the day. The solar wind remained reasonably calm and the Kp index only peaked at three. This rapidly fell to one by Tuesday and stayed at one or two for the rest of …

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The K7RA Solar Update

Tad Cook, K7RA, Seattle, reports: One new sunspot group appeared on December 4, but 4 days later it was gone, and on Thursday, December 9, we saw a second day with no sunspots. Average daily sunspot number declined from 46.1 to 24.6. Average daily solar flux went from 90.9 to 82.6. Predicted solar flux over the next month does not …

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Geomagnetic Indices, November 2021

GEOMAGNETIC INDICES – Compiled by: Phil Bytheway DXM.EiC@gmail.com Geomagnetic Summary November 01 2021 through November 30 2021 Tabulated from WWV on-line status daily (K @ 0000 UTC): ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/ Flux A K Space Wx 1 98 10 4 minor, R1 2 97 17 2 minor, R1 3 89 21 7 strong, G3 4 94 69 2 strong, G3 5 93 13 …

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Propagation outlook from SWPC Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2021 Dec 06 0224 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 29 November – 05 December 2021 Solar activity was at very low …

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The K7RA Solar Update

Tad Cook, K7RA, Seattle, reports: Solar activity was up this week. Average daily sunspot number increased from 26.9 to 46.1, and average daily solar flux was up 10.8 points to 90.9. Geomagnetic indicators were a little higher. Average daily planetary A index increased from 7.9 to 8.7, and average daily middle latitude A index from 5.4 to 6.3. I like …

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Propagation News – 05 December 2021

The last week was characterised by unsettled geomagnetic conditions, but a reasonable solar flux index of 92, falling to 86. Despite NOAA predicting that the Kp index would be around two, we had an excursion up to five on Tuesday. This was due to an enhanced solar wind stream containing a sector of southward Bz, which kicked up a minor, …

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Solar Cycle Sunspots & Radio Flux – Impact on Propagation

Solar Cycle Sunspots & Radio Flux – Impact on Propagation From: mediumwavedx Date: Wed, 01 Dec 2021 19:45:14 UTC Concerning medium wave, sunspots and the increasing solar flux are relevant to skywave signal strength and are accounted for in most modern (nighttime) skywave prediction methods. In general, medium wave skywave signal strength is slightly better during low or zero sunspot …

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The K7RA Solar Update

Tad Cook, K7RA, Seattle, reports: The Thanksgiving holiday and my hospitalization delayed the usual Friday Solar Update for November 26. Average daily sunspot numbers for the November 18 – 24 reporting week were down by four points, from 30.9 to 26.9. Average daily solar flux went from 80.8 to 80.1. Average daily planetary A index edged up from 7 to …

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Propagation outlook from SWPC

:Product: Weekly Highlights and Forecasts :Issued: 2021 Nov 29 0301 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 22 – 28 November 2021 Solar activity was at very low levels …

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