Sunspot #1302 CME Sept 26, 2011.


Here's an animation of the model SWPC used to accurately forecast the Coronal Mass Ejection's (CME) arrival. The model, known as WSA-Enlil shows a view from above the north poles of the Sun and Earth, with the Sun shown as a yellow circle and the Earth as a green circle. The animation shows where density is high (as in the CME) in the colors of red, white and black, and where density is low (as in the background solar wind) in colors of blue and green. The CME is the curved, high density structure that transits from the Sun to the Earth. From the animation, it is clear we missed the center of the CME.


The fast Coronal Mass Ejection (CME) that erupted from NOAA Active Region 1302 arrived this morning at 1237Z (8:37am Eastern Time).  It has kicked off moderate (G2) geomagnetic storms for low latitudes, but high latitudes are seeing severe (G4) levels of activity.  Aurora watchers in Asia and Europe are most favorably positioned for this event, though it may persist long enough for viewers in North America.  The bulk of the CME missed the Earth, meaning the storm intensity and duration are less than what they would have been in the case of a direct hit.  We are posting frequent updates on the SWPC Facebook page, which you can follow (here).



The Geomagnetic Storm that began yesterday is quieting down, though we aren’t quite back to quiet conditions yet.  High speed solar wind is coming in behind the Coronal Mass Ejection and these winds are keeping things slightly active on the space weather front.  The region on the Sun that produced this activity is in a favorable position to cause further problems, but it is starting to weaken.  It remains a threat, though diminishing.  Yesterday, there would have been problems with high accuracy GPS and there was a noted issue with the FAA’s Wide Area Augmentation System (WAAS), where the Vertical Error Limit was exceeded.  WAAS is used to provide high accuracy GPS in the areas around airports.  Much more information about this storm is available on the SWPC Facebook page.


The Truth Is Stranger Than Fiction!

Comments

View My Archived Past Blog Posts

Show more

Current Watches In Effect

Current Watches In Effect
Click On The Map To Open It Up

NWS Nationwide

NWS Nationwide
Click On The Map To Enlarge It

Eddy County

Chaves County

Lea County

Lincoln County

Otero County

NWS Midland

NWS Midland
Click On The Map For Forecasts/Watches/Warnings

NWS Albuquerque

NWS Albuquerque
Click On The Map For Forecasts/Watches/Warnings

NWS Lubbock.

NWS Lubbock.
Click On The Map For Forecasts/Watches/Warnings

NWS El Paso.

NWS El Paso.
Click On The Map For Forecasts/Watches/Warnings

Regional Radar

Regional Radar
Click On The Map To Enlarge It

National Radar

National Radar
Click On The Map To Enlarge It

Current Temperatures

Current Temperatures
Click On The Map To Open It Up

Current Heat Index/Wind Chill

Current Heat Index/Wind Chill
Click On The Map To Open It Up

Today's Forecast High Temps

Today's Forecast High Temps
Click On The Map To Enlarge It

Tonight's Forecast Low Temps

Tonight's Forecast Low Temps
Click On The Map To Enlarge It

Tomorrow's Forecast High Temps

Tomorrow's Forecast High Temps
Click On The Map To Enlarge It

My Photo Slide Show

My Photo Slide Show
Click On The Image To Enlarge It

Disclaimer

This blog and its contents are for informational purposes only! Always have multiple sources of information available to rely on during severe weather.
United States Weather Group

Pageviews Since June 2010.