The following sections have been updated in the past 1 day. ------------------------------------------------------------------------ -- SEVERE STORMS (1 updated event, 1 new image) -- NORTHERN HEMISPHERE SUMMER EXTREMES 2021 Although they can happen any time of the year, here's a look at some extreme events occurring during the summer months north of the equator. * Extratropical Cyclones Drench West Coast (Image from Oct 25, 2021; Posted Oct 25, 2021) https://earthobservatory.nasa.gov/images/148999/extratropica ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Oct 26 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 299 Issued at 0030Z on 26 Oct 2021 Report compiled from data received at SWO on 25 Oct I. Regions with Sunspots. Locations Valid at 25/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2886 S19W29 335 0110 Hsx 01 01 Alpha 2887 S26E27 279 0330 Dki 07 20 Beta-Gamma 2888 S1 ...Continue Reading

The following sections have been updated in the past 7 days. ------------------------------------------------------------------------ -- VOLCANOES (1 updated event, 1 new image) -- ERUPTION AT LA PALMA Cumbre Vieja, one of two volcanoes on La Palma, is one of the most active volcanoes in the Canaries. * Sulfur Skies over La Palma (Image from Oct 18, 2021; Posted Oct 20, 2021) https://earthobservatory.nasa.gov/images/148978/sulfur-skies-over-la-palma/?src=nha -- DROUGHT (1 updated event, 1 new image) -- 2021 DR ...Continue Reading

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA SPACE WEATHER ADVISORY OUTLOOK #21-46 2021 October 24 at 9:53 p.m. MDT (2021 October 25 0353 UTC) **** SPACE WEATHER OUTLOOK **** Summary For October 18-24 No space weather storms were observed. Outlook For October 25-31 There is a slight chance for R1-R2 (Minor-Moderate) radio blackouts on 25-31 Oct due to the flare potential of Active Region 2887. Data used to provide space weather services are ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Oct 25 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 298 Issued at 0030Z on 25 Oct 2021 Report compiled from data received at SWO on 24 Oct I. Regions with Sunspots. Locations Valid at 24/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2886 S19W15 334 0110 Hsx 02 01 Alpha 2887 S25E40 278 0440 Dki 09 14 Beta 2888 S15E66 ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Oct 23 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 296 Issued at 0030Z on 23 Oct 2021 Report compiled from data received at SWO on 22 Oct I. Regions with Sunspots. Locations Valid at 22/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2886 S19E10 335 0100 Hsx 02 01 Alpha 2887 S24E65 280 0150 Dao 05 07 Beta IA. H-alpha P ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Oct 22 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 295 Issued at 0030Z on 22 Oct 2021 Report compiled from data received at SWO on 21 Oct I. Regions with Sunspots. Locations Valid at 21/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2886 S19E22 336 0100 Hsx 02 01 Alpha IA. H-alpha Plages without Spots. Locations Valid at 21 ...Continue Reading

The following sections have been updated in the past 1 day. ------------------------------------------------------------------------ -- VOLCANOES (1 updated event, 1 new image) -- ERUPTION AT LA PALMA Cumbre Vieja, one of two volcanoes on La Palma, is one of the most active volcanoes in the Canaries. * Sulfur Skies over La Palma (Image from Oct 18, 2021; Posted Oct 20, 2021) https://earthobservatory.nasa.gov/images/148978/sulfur-skies-over-la-palma/?src=nha ------------------------------------------------------ ...Continue Reading

:Product: Solar Region Summary :Issued: 2021 Oct 21 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 294 Issued at 0030Z on 21 Oct 2021 Report compiled from data received at SWO on 20 Oct I. Regions with Sunspots. Locations Valid at 20/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2886 S19E36 336 0130 Hsx 02 01 Alpha IA. H-alpha Plages without Spots. Locations Valid at 20 ...Continue Reading

The following sections have been updated in the past 1 day. ------------------------------------------------------------------------ -- WATER COLOR (1 updated event, 1 new image) -- 2021 NORTHERN HEMISPHERE OCEAN BLOOMS Increased sunlight, nutrient runoff, and wind-driven upwelling can create ideal conditions for massive blooms of floating plant-like phytoplankton. * Late Bloomers in the Arctic (Image from Oct 14, 2021; Posted Oct 19, 2021) https://earthobservatory.nasa.gov/images/148974/late-bloomers-in-the-ar ...Continue Reading