NOAA / Space Weather Prediction Center
![]() |
Space Weather Alerts |
Alerts in Graphical Timelines: Past 7 days
and Currently in Effect
Alerts in Text Format: Current month and
Previous month
Space Weather Message Code: WARSUD
Serial Number: 67
Issue Time: 2009 Dec 25 1619 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2009 Dec 25 1710 UTC
Valid To: 2009 Dec 25 1810 UTC
IP Shock Passage Observed: 2009 Dec 25 1550 UTC
Space Weather Message Code: ALTTP2
Serial Number: 693
Issue Time: 2009 Dec 22 0533 UTC
ALERT: Type II Radio Emission
Begin Time: 2009 Dec 22 0457 UTC
Estimated Velocity: 531 km/s
Space Weather Message Code: ALTTP4
Serial Number: 315
Issue Time: 2009 Dec 17 1556 UTC
ALERT: Type IV Radio Emission
Begin Time: 2009 Dec 16 2212 UTC
![]() |
Space Weather Topics: Alerts / Warnings, Space Weather Now, Today's Space Wx, Data and Products, About Us , Email Products, Space Wx Workshop , Education/Outreach, Disclaimer, Customer Services, Contact Us |