NOAA / Space Weather Prediction Center

Mass Ejection graphic

Space Weather Alerts

Alerts/Displays - Archive - Email Registration - Help/Samples

Alerts in Graphical Timelines: Past 7 days and Currently in Effect
Alerts in Text Format: Current month and Previous month

Alerts Issued in July 2014


Space Weather Message Code: SUMSUD
Serial Number: 195
Issue Time: 2014 Jul 14 1502 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2014 Jul 14 1443 UTC
Deviation: 10 nT
Station: Bou


Space Weather Message Code: ALTTP2
Serial Number: 945
Issue Time: 2014 Jul 09 0121 UTC

ALERT: Type II Radio Emission
Begin Time: 2014 Jul 09 0029 UTC
Estimated Velocity: 1187 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: ALTTP2
Serial Number: 944
Issue Time: 2014 Jul 08 1822 UTC

ALERT: Type II Radio Emission
Begin Time: 2014 Jul 08 1614 UTC
Estimated Velocity: 949 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: SUMXM5
Serial Number: 118
Issue Time: 2014 Jul 08 1653 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2014 Jul 08 1606 UTC
Maximum Time: 2014 Jul 08 1620 UTC
End Time: 2014 Jul 08 1630 UTC
X-ray Class: M6.5
Optical Class: 2b
Location: N10E54
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.


Space Weather Message Code: ALTTP4
Serial Number: 467
Issue Time: 2014 Jul 08 1629 UTC

ALERT: Type IV Radio Emission
Begin Time: 2014 Jul 08 1604 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTXMF
Serial Number: 224
Issue Time: 2014 Jul 08 1616 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2014 Jul 08 1615 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/drap/index.html.


Space Weather Message Code: SUMSUD
Serial Number: 194
Issue Time: 2014 Jul 03 0124 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2014 Jul 03 0041 UTC
Deviation: 21 nT
Station: Boulder