Space Weather for Aviation Service Providers
NOAA National Weather Service
Space Weather Prediction Center
24 hour Forecast issued May 21 0600 UTC,
Geophysical Alert Message
Solar-terrestrial indices for 20 May follow.
Solar flux 132 and estimated planetary A-index 7.
The estimated planetary K-index at 0600 UTC on 21 May was 2.
No space weather storms were observed for the past 24 hours.
Space weather for the next 24 hours is predicted to be minor.
Radio blackouts reaching the R1 level are likely.
Latest 3-day Solar Weather Forecast
|
|
Space Weather
Alerts of interest to Aviation users, issued in past 24 hours |
| Issue Time |
Type |
Details |
| May 20 1155 UTC |
CANCEL WATCH: Geomagnetic Storm Category G2 Predicted |
Original Issue Time: 2013 May 19 1855 UTC
Comment: Canceling watch for G2 Geomagnetic Storming on 20 May as data suggests CME has already passed.
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Comment: Canceling watch for G2 Geomagnetic Storming on 20 May as data suggests CME has already passed.
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
|
Last page update 2013 May 21 0632 UTC. This page automatically reloads
every minute but not all displays are created at that rate.
See User
Guide for individual display update rates. Note: use browser Reload when
returning to this page to ensure latest data.
The Space Weather Prediction Center (SWPC) Space Weather for Aviation Service Providers
web site is designed for the aviation community to communicate space weather
information in terms that are easy to interpret and understand. Solar events
can have a detrimental impact on airlines and ground equipment. Space weather
storms can result in lost or degraded communications, unreliable navigational
equipment, flight-critical electronic system problems, and radiation hazards
to crew and passengers.
Displays show the most recent data available at SWPC. See the
sample web page which shows how the
page looked during the high solar activity in September 2005. See
Data and Products for earlier data.
The Space Weather for Aviation Service Providers web page is described in its
Product
Description Document.
The Feedback Form
can be used for comments, questions and suggestions.
SWPC.CustomerSupport@noaa.gov
