Viewing archive of Sunday, 25 May 2014

Solar activity report

Report of Solar-Geophysical Activity 2014 May 25 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 145 Issued at 2200Z on 25 May 2014

IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C2 event observed at 25/1753Z from Region 2065 (S19W73). There are currently 6 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be low with a slight chance for an M-class flare on days one, two, and three (26 May, 27 May, 28 May).
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 473 km/s at 25/0530Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 204 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on day one (26 May) and quiet levels on days two and three (27 May, 28 May).
III. Event Probabilities 26 May to 28 May
Class M20%20%10%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       25 May 113
  Predicted   26 May-28 May 112/112/110
  90 Day Mean        25 May 145

V. Geomagnetic A Indices
  Observed Afr/Ap 24 May   NA/006
  Estimated     Afr/Ap 25 May  005/005
  Predicted    Afr/Ap 26 May-28 May  007/008-006/005-006/005

VI. Geomagnetic Activity Probabilities 26 May to 28 May
A. Middle Latitudes
Active15%05%05%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active20%15%15%
Minor storm30%15%15%
Major-severe storm20%05%05%

<< Go to daily overview page

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

100%

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/09/28Kp5 (G1)
Number of spotless days in 2019:215
Current stretch spotless days:17

This day in history*

Solar flares
12001X1.6
22001X1.6
32003X1.1
42014X1.1
52001M5.7
ApG
1199862G3
2199638G1
3200337G1
4199531G3
5200716
*since 1994

Social networks