Space Weather Observations, Alerts, and Forecast


Real Time Images of the Sun


SOHO EIT 304
Click for time-lapse image of the sun
SOHO EIT 284
SOHO EIT 284 image of the sun
Mauna Loa Solar Image
Latest Mauna Loa image of the Sun

The sun is constantly monitored for sun spots and coronal mass ejections. EIT (Extreme ultraviolet Imaging Telescope) images the solar atmosphere at several wavelengths, and therefore, shows solar material at different temperatures. In the images taken at 304 Angstrom the bright material is at 60,000 to 80,000 degrees Kelvin. In those taken at 171 Angstrom, at 1 million degrees. 195 Angstrom images correspond to about 1.5 million Kelvin, 284 Angstrom to 2 million degrees. The hotter the temperature, the higher you look in the solar atmosphere.

Daily 24 Hour Solar Activity Summary
Issued: 2016 Jul 24 1230 UTC

Solar activity was at moderate levels due to a single R1 (Minor) flare observed from Region 2567 (N05W86, Dao/beta). As Region 2567 approached the west limb, it produced an M1/Sf flare observed at 24/0620 UTC. The region also produced numerous weak C-class throughout the period. Proximity to the west limb prevented further region analysis. Region 2565 (N03, L=178) rotated around the limb earlier in the period. The remainder of the disk and limb was quiet and stable. No Earth-directed CMEs were observed in available coronagraph imagery.

Solar Activity Forecast
Issued: 2016 Jul 24 1230 UTC

Solar activity is expected to be low with a continued chance for M-class (R1-R2, Minor-Moderate) flares and a slight chance for an X-class (R3-Strong or greater) flare on day one (24 Jul) due to significant flare potential from Region 2567. As the complex of Regions 2565 and 2567 continue to rotate around the west limb, solar activity is expected to decrease to a chance for M-class flares with C-class flares likely on day two (25 Jul) decreasing to a slight chance for C-class flares on day three (26 Jul). Energetic

Real Time Solar X-ray and Solar Wind


Solar Cycle Progression
Graph showing current solar cycle progression
Solar Cycle chart updated using the latest ISES predictions.
Real-Time Solar Wind
Graph showing Real-Time Solar Wind
Real-Time Solar Wind data broadcast from NASA's ACE satellite.

The Solar Cycle is observed by counting the frequency and placement of sunspots visible on the Sun. Solar minimum occurred in December, 2008. Solar maximum is expected to occur in May, 2013.

Solar X-ray Flux
Graph showing Real-Time Solar X-ray Flux
This plot shows 3-days of 5-minute solar x-ray flux values measured on the SWPC primary and secondary GOES satellites.
Satellite Environment Plot
Graph showing Real-Time Satellite Environment Plot
The Satellite Environment Plot combines satellite and ground-based data to provide an overview of the current geosynchronous satellite environment.

Auroral Activity Extrapolated from NOAA POES


Northern Hemi Auroral Map
Current Northern hemispheric power input map
Southern Hemi Auroral Map
Current Southern hemispheric power input map

Instruments on board the NOAA Polar-orbiting Operational Environmental Satellite (POES) continually monitor the power flux carried by the protons and electrons that produce aurora in the atmosphere. SWPC has developed a technique that uses the power flux observations obtained during a single pass of the satellite over a polar region (which takes about 25 minutes) to estimate the total power deposited in an entire polar region by these auroral particles. The power input estimate is converted to an auroral activity index that ranges from 1 to 10.



Credits:

Space Weather Images and Information (excluded from copyright) courtesy of: NOAA / NWS Space Weather Prediction Center, Mauna Loa Solar Observatory (HAO/NCAR), and SOHO (ESA & NASA).

Space Weather links:
3-Day Forecast of Solar and Geophysical Activity
Space Weather Now
Today's Space Weather
Real-Time Solar Wind
Space Weather Outlooks
Space Weather Bulletins
Space Weather Alerts and Warnings
Space Weather Alerts - Current Month
Solar and Heliospheric Observatory (SOHO)
The Very Latest SOHO Images

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