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Propagation outlook from SWPC Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2022 Jan 17 0208 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 January 2022 Solar activity ranged from very low to …

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Geophysical Alert Message (WWV): 116, 22, 4, G1, G1

:Product: Geophysical Alert Message wwv.txt :Issued: 2022 Jan 16 0300 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # # Geophysical Alert Message # Solar-terrestrial indices for 15 January follow. Solar flux 116 and estimated planetary A-index 22. The estimated planetary K-index at 0300 UTC on 16 January was 4. Space weather for the …

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Propagation News – 16 January 2022

We had a week of relatively low, but stable, sunspot numbers, which affected the maximum usable frequencies available. Having said that, the SFI was above 100 all week, but we didn’t get the surge in numbers that we really needed for good reliable ionospheric propagation. MUFs over a 3,000km path often exceeded 28MHz, but this mainly occurred over the lunchtime …

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The K7RA Solar Update

Tad Cook, K7RA, Seattle, reports: The Australian Space Forecast Centre issued this warning at 2355 UTC on January 13: “A Southern coronal hole with extensions into the equatorial region is expected to reach geo-effective location on the solar disk on late UTC day 15 January. As a result, unsettled-to-active conditions with a chance of minor storms are possible on these …

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Propagation outlook from SWPC Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2022 Jan 10 0129 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 03 – 09 January 2022 Solar activity was at very low to …

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Propagation News – 9 January 2022

GB2RS News Team | January 7, 2022 Welcome back to the GB2RS HF Propagation News. And we start the year on a bit of a downer, with the solar flux index back in the 80s. On Thursday the 6th, the SFI was at 84 with two active sunspot regions. This is probably going to be a short-lived lull in solar …

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The K7RA Solar Update

Tad Cook, K7RA, Seattle, reports: Sunspot activity was substantially lower this week, but new sunspot groups emerged on December 31, January 1, January 4, and January 5. Average daily sunspot number dropped from 110.1 to 36.4, while average daily solar flux went from 124 to 91.4. Geomagnetic activity was still fairly quiet, even with a number of flares and coronal …

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Propagation outlook from SWPC Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2022 Jan 03 0417 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 27 December – 02 January 2022 Solar activity was at very low …

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The K7RA Solar Update

Tad Cook, K7RA, Seattle, reports: Sunspot activity persisted this week, although the numbers were a little lower. The average daily sunspot number declined from 124.4 to 110.1. Average daily solar flux slipped slightly, from 125 to 124. Average daily planetary A index went from 9.1 to 6.4, and average middle latitude numbers changed from 6.4 to 4.4. New sunspot groups …

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Propagation outlook from SWPC Boulder

:Product: Weekly Highlights and Forecasts :Issued: 2021 Dec 27 0408 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 20 – 26 December 2021 Solar activity was at low levels with …

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The K7RA Solar Update

Tad Cook, K7RA, Seattle, reports: Solar activity was way up this week, and it was reflected in on-air activity, especially on 10 meters. If only the ARRL 10-Meter Contest were held a week later! The average daily sunspot number jumped by 100 points — from 24.4 last week to 124.4 in the December 16 – 22 reporting week. Average daily …

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Propagation News – 26 December 2021

Given that this report has to last two weeks it is difficult to be precise in terms of actual HF conditions. What we can say is that we are in turbulent times, with the solar flux index going up and down, and geomagnetic conditions subject to fluctuations as coronal holes and coronal mass ejections come and go. The NOAA forecast …

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