Aurora - 30 Minute Forecast | NOAA (2024)

NOAA Logo

NWS Logo

Aurora - 30 Minute Forecast | NOAA (2)

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, June 12, 2024 13:57:49

Main menu

  • Home
  • About Space Weather
    • Impacts
      • Earth's Climate
      • Electric Power Transmission
      • GPS Systems
      • HF Radio Communications
      • Satellite Communications
      • Satellite Drag
    • Partners and Stakeholders
      • Commercial Service Providers
      • Federal Agencies
      • International Organizations
      • International Service Providers
      • Space Weather Research
    • Phenomena
      • Aurora
      • Coronal Holes
      • Coronal Mass Ejections
      • Earth's Magnetosphere
      • F10.7 cm Radio Emissions
      • Galactic Cosmic Rays
      • Geomagnetic Storms
      • Ionosphere
      • Ionospheric Scintillation
      • Radiation Belts
      • Solar EUV Irradiance
      • Solar Flares (Radio Blackouts)
      • Solar Radiation Storm
      • Solar Wind
      • Sunspots/Solar Cycle
      • Total Electron Content
    • Additional Info
      • NOAA Space Weather Scales
  • Products and Data
    • Forecasts
      • 27-Day Outlook of 10.7 cm Radio Flux and Geomagnetic Indices
      • 3-Day Forecast
      • 3-Day Geomagnetic Forecast
      • Forecast Discussion
      • Predicted Sunspot Numbers and Radio Flux
      • Report and Forecast of Solar and Geophysical Activity
      • Solar Cycle Progression
      • Space Weather Advisory Outlook
      • USAF 45-Day Ap and F10.7cm Flux Forecast
      • Weekly Highlights and 27-Day Forecast
    • Reports
      • Forecast Verification
      • Geoalert - Alerts, Analysis and Forecast Codes
      • Geophysical Alert
      • Solar and Geophysical Event Reports
      • USAF Magnetometer Analysis Report
    • Models
      • Aurora - 30 Minute Forecast
      • CTIPe Total Electron Content Forecast
      • D Region Absorption Predictions (D-RAP)
      • Geospace Geomagnetic Activity Plot
      • Geospace Ground Magnetic Perturbation Maps
      • Geospace Magnetosphere Movies
      • North American (US Region) Total Electron Content
      • North American Total Electron Content
      • Relativistic Electron Forecast Model
      • SEAESRT
      • STORM Time Empirical Ionospheric Correction
      • WSA-Enlil Solar Wind Prediction
      • WAM-IPE
    • Observations
      • Boulder Magnetometer
      • GOES Electron Flux
      • GOES Magnetometer
      • GOES Proton Flux
      • GOES Solar Ultraviolet Imager (SUVI)
      • GOES X-ray Flux
      • LASCO Coronagraph
      • Planetary K-index
      • Real Time Solar Wind
      • Satellite Environment
      • Solar Synoptic Map
      • Space Weather Overview
      • Station K and A Indices
    • Summaries
      • Solar Region Summary
      • Summary of Space Weather Observations
    • Alerts, Watches and Warnings
      • Alerts, Watches and Warnings
      • Notifications Timeline
    • Experimental
      • ACE Real-Time Solar Wind
      • Aurora Viewline for Tonight and Tomorrow Night
      • International Civil Aviation Organization (ICAO) Space Weather Advisory
      • Solar TErrestrial RElations Observatory (STEREO)
    • Data Access
  • Dashboards
    • Aurora
    • Aviation
    • Electric Power
    • Emergency Management
    • Global Positioning System
    • Radio
    • Satellites
    • Space Weather Enthusiasts
  • Media and Resources
    • Education and Outreach
    • Glossary
    • News Archive
    • Newsroom
  • Subscribe
  • Annual Meeting
  • Feedback
  • Home
  • Products and Data
  • Models
  • Aurora - 30 Minute Forecast

NOAA Scales mini

Space Weather Conditions

on NOAA Scales

24-Hour Observed Maximums

R

no data

S

no data

G

no data

Latest Observed

R

no data

S

no data

G

no data

R1-R2--
R3-R5--
S1 or greater--

G

no data

R1-R2--
R3-R5--
S1 or greater--

G

no data

R1-R2--
R3-R5--
S1 or greater--

G

no data

R

no data

S

no data

G

no data

Current Space Weather Conditions

on NOAA Scales

R1 (Minor) Radio Blackout Impacts

HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact.
Navigation: Low-frequency navigation signals degraded for brief intervals.

More about the NOAA Space Weather Scales

Northern Hemisphere

Aurora - 30 Minute Forecast | NOAA (6)

Southern Hemisphere

Aurora - 30 Minute Forecast | NOAA (7)

  • Usage
  • Impacts
  • Details
  • History
  • Data

This is a short-term forecast of the location and intensity of the aurora. This product is based on the OVATION model and provides a 30 to 90 minute forecast of the location and intensity of the aurora. The forecast lead time is the time it takes for the solar wind to travel from the L1 observation point to Earth.

The two maps show the North and South poles of Earth respectively. The brightness and location of the aurora is typically shown as a green oval centered on Earth’s magnetic pole. The green ovals turn red when the aurora is forecasted to be more intense. The sunlit side of Earth is indicated by the lighter blue of the ocean and the lighter color of the continents. Aurora can often be observed somewhere on Earth from just after sunset or just before sunrise. The aurora is not visible during daylight hours. The aurora does not need to be directly overhead but can be observed from as much as a 1000 km away when the aurora is bright and if conditions are right.

The aurora is an indicator of the current geomagnetic storm conditions and provides situational awareness for a number of technologies. The aurora directly impacts HF radio communication and GPS/GNSS satellite navigation. It is closely related to the ground induce currents that impact electric power transition.

For many people, the aurora is a beautiful nighttime phenomenon that is worth traveling to arctic regions just to observe. It is the only way for most people to actually experience space weather.

These links provide a discussion of the aurora phenomena and tips for the best opportunities to view aurora at various locations around the world.

Space Weather and GPS Systems

Electric Power Transmission

HF Radio Communications

The OVATION (Oval Variation, Assessment, Tracking, Intensity, and OnlineNowcasting) model is an empirical model of the intensity of the aurora developed at the Johns Hopkins University, Applied Physics Laboratory by Patrick Newell and co-workers1. The model uses the solar wind velocity and interplanetary magnetic field measured at the L1 orbit position at 1.6 million km (1 million miles) upstream from earth as input and calculates three types of electron precipitation and the proton precipitation which strongly correlate with the aurora. An estimate of aurora viewing probability can be derived by assuming a linear relationship to the intensity of the aurora. This relationship was validated by comparison with data from the Ultraviolet imager (UVI) instrument on the NASA Polar satellite(2).

On occasion, the input solar wind data are either contaminated or unavailable. In those instances, an alternative estimate of the solar wind forcing, based on the current Kp geomagnetic index is used to drive the OVATION model. When this occurs, there is no forecast lead time.

For more information on the OVATION model and aurora products, see:

  1. Newell, P. T., T.Sotirelis, and S. Wing (2009), Diffuse,monoenergetic, and broadband aurora: The global precipitation budget, J.Geophys. Res., 114, A09207,doi:10.1029/2009JA014326(link is external).
  2. Machol, J. L., Green., J. C.,Redmon, R. J.,Viereck, R. A., Newell, P. T., (2012), Evaluation of OVATION Prime as a forecast model for visibleaurorae, Space Weather, 10, 3,doi.org/10.1029/2011SW000746

In 2009, Newell et. al., developed the OVATION model.

In 2011, NOAA (NCEIandSWPC) developed a real-time version of the OVATION model to forecast the location and intensity of the aurora.MacholandRedmon(NCEI) developed the real-time ovation model. Viereck(SWPC) implemented the model and developed the graphical products to run inrealtimeto create aurora forecasts.

In 2013, Newell upgraded the OVATION Prime model so that it would more accurately capture large geomagnetic storms. The original model, based solely onDMSPdata, was only reliable to Kp of 7. By adding data from the NASA TIMEDGUVIinstrument, Newell et al., were able to expand the model to include the larger storm values of Kp of 8 and 9.

In 2016, NOAASWPCshared the operational OVATION code (written inIDL) with the UK Met Office in the UK. The UK Met Office converted the OVATION model fromIDLto Python.

In 2020, NOAASWPCimplemented the new version of the OVATION Prime model into operations. This version has been dubbed OVATION 2020.

The Auroral Forecast product is based on the OVATION Prime model developed by P. Newell at the Johns Hopkins, Applied Physics Laboratory.

The latest 24 hours of image frames comprising the Northern and Southern hemisphere loops (with time-tagged file names) are available:Northern,Southern

The most recentNorthern and Southern Hemisphere images (with static file names) are available:Northern,Southern

Auroral data in agridedformat for the entire Earth is available in compressed JSON format: Thelatest JSON fileis available as well.

The Hemispheric Power Index, an estimate of the total auroral energy input at each pole, is available in ASCII format:latest HPI

Aurora - 30 Minute Forecast | NOAA (2024)
Top Articles
Latest Posts
Article information

Author: Kieth Sipes

Last Updated:

Views: 5714

Rating: 4.7 / 5 (67 voted)

Reviews: 90% of readers found this page helpful

Author information

Name: Kieth Sipes

Birthday: 2001-04-14

Address: Suite 492 62479 Champlin Loop, South Catrice, MS 57271

Phone: +9663362133320

Job: District Sales Analyst

Hobby: Digital arts, Dance, Ghost hunting, Worldbuilding, Kayaking, Table tennis, 3D printing

Introduction: My name is Kieth Sipes, I am a zany, rich, courageous, powerful, faithful, jolly, excited person who loves writing and wants to share my knowledge and understanding with you.