 | | | Switch to: Europe, USA, New Zealand, Antarctica Credit: NOAA/Ovation Planetary K-index
Now: Kp= 1 quiet
24-hr max: Kp= 3 quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 7.0 nT
Bz: 4.3 nT south
explanation | more data
Updated: Today at 2350 UT Coronal Holes: 22 Feb 15 A There are no large coronal holes on the Earthside of the sun. Credit: SDO/AIA. Noctilucent Clouds As of Nov. 22, 2014, the season for southern hemisphere noctilucent clouds is underway. The south polar "daisy" pictured below is a composite of near-realtime images from NASA's AIM spacecraft. Switch view: Ross Ice Shelf, Antarctic Penninsula, East Antarctica, Polar Updated at: 02-22-2015 18:55:03 SPACE WEATHER
NOAA Forecasts | | Updated at: 2015 Feb 22 2200 UTC FLARE | 0-24 hr | 24-48 hr | CLASS M | 01 % | 01 % | CLASS X | 01 % | 01 % | Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm Updated at: 2015 Feb 22 2200 UTC Mid-latitudes | 0-24 hr | 24-48 hr | ACTIVE | 30 % | 15 % | MINOR | 05 % | 01 % | SEVERE | 01 % | 01 % | High latitudes | 0-24 hr | 24-48 hr | ACTIVE | 15 % | 15 % | MINOR | 30 % | 25 % | SEVERE | 35 % | 20 % | | | | | | | | | | | Learn to photograph Northern Lights like a pro. Sign up for Peter Rosen's Aurora Photo Courses in Abisko National Park. | | | CHANCE OF MAGNETIC STORMS: NOAA forecasters estimate a 40% chance of geomagnetic storms on Feb. 22-23 in response to an incoming solar wind stream. Polar sky watchers should be alert for auroras. Aurora alerts: text, voice ALMOST-BLANK SUN: Officially, there are four numbered sunspot groups on the sun. Good luck finding them. They are almost invisible in today's image of the sun taken by NASA's Solar Dynamics Observatory: Most analysts believe that Solar Cycle 24 is just past maximum. That doesn't mean sunspots will instantly vanish, but more almost-blank suns--and truly blank suns--are in the offing as the solar cycle slowly descends toward lower activity in the months and years ahead. As for today, not one of the tiny sunspot's peppering the solar disk pose a threat for strong solar flares. NOAA forecasters estmiate a slim 1% chance of M-flares on Feb. 22nd. Solar flare alerts:
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