Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #21-47 2021 October 31 at 11:26 p.m. MDT (2021 November 1 0526 UTC) **** SPACE WEATHER OUTLOOK **** Summary For October 25-31 R1 (Minor) Radio Blackouts were observed on 26, 28, and 29 Oct with R3 (Strong) levels observed on 28 Oct due to flare activity from sunspot Regions 2887 and 2891. S1 (Minor) Solar Radiation Storm levels were observed on 28-30 Oct associated with th ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Nov 01 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 305 Issued at 0030Z on 01 Nov 2021 Report compiled from data received at SWO on 31 Oct I. Regions with Sunspots. Locations Valid at 31/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2887 S28W47 273 0150 Cso 08 08 Beta 2889 S24W21 250 0000 Axx 00 01 Alpha 2891 N17E16 ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Oct 30 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 303 Issued at 0030Z on 30 Oct 2021 Report compiled from data received at SWO on 29 Oct I. Regions with Sunspots. Locations Valid at 29/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2886 S19W81 334 0100 Hsx 03 01 Alpha 2887 S26W21 274 0250 Dhi 10 22 Beta-Gamma 2889 S2 ...Continue Reading

Space Weather Message Code: WARPC0 Serial Number: 89 Issue Time: 2021 Oct 29 2339 UTC EXTENDED WARNING: Proton 100MeV Integral Flux above 1pfu expected Extension to Serial Number: 88 Valid From: 2021 Oct 28 1635 UTC Now Valid Until: 2021 Oct 30 1200 UTC Warning Condition: Persistence NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological ris ...Continue Reading

Space Weather Message Code: WARPC0 Serial Number: 88 Issue Time: 2021 Oct 29 1142 UTC EXTENDED WARNING: Proton 100MeV Integral Flux above 1pfu expected Extension to Serial Number: 87 Valid From: 2021 Oct 28 1635 UTC Now Valid Until: 2021 Oct 29 2359 UTC Warning Condition: Persistence NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological ris ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Oct 29 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 302 Issued at 0030Z on 29 Oct 2021 Report compiled from data received at SWO on 28 Oct I. Regions with Sunspots. Locations Valid at 28/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2886 S19W68 334 0100 Hsx 02 01 Alpha 2887 S26W08 274 0320 Dkc 09 28 Beta-Gamma 2889 S2 ...Continue Reading

Space Weather Message Code: WARPC0 Serial Number: 87 Issue Time: 2021 Oct 28 1747 UTC WARNING: Proton 100MeV Integral Flux above 1pfu expected Valid From: 2021 Oct 28 1635 UTC Valid To: 2021 Oct 29 1200 UTC Warning Condition: Onset NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitud ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Oct 28 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 301 Issued at 0030Z on 28 Oct 2021 Report compiled from data received at SWO on 27 Oct I. Regions with Sunspots. Locations Valid at 27/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2886 S19W55 334 0090 Hsx 02 01 Alpha 2887 S26E04 275 0250 Dhi 08 26 Beta-Gamma 2889 S2 ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Oct 27 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 300 Issued at 0030Z on 27 Oct 2021 Report compiled from data received at SWO on 26 Oct I. Regions with Sunspots. Locations Valid at 26/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2886 S20W41 333 0100 Hsx 02 01 Alpha 2887 S26E15 277 0370 Dhi 08 20 Beta 2888 S13E39 ...Continue Reading

The latest from NASA's Earth Observatory (26 October 2021) ------------------------------------------------------------------------ New Features: https://earthobservatory.nasa.gov/features * Falling for the Colors https://earthobservatory.nasa.gov/collection/1692/fall-colors?src=eoa-features As green chlorophyll fades from trees and plants each autumn, other pigments color the Earth's landscapes. Satellites take leaf-peeping to a whole new level. -------------------- Latest Images: https://earthobservatory.nasa. ...Continue Reading