Viewing archive of Friday, 3 June 2011

Solar activity report

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2011 Jun 03 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 154 Issued at 2200Z on 03 Jun 2011

IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z

Solar activity was low. Region 1226 (S22W14) produced a C2/Sf flare at 03/1617Z. This region is a Dkc group with a beta magnetic classification. All other numbered regions on the disk remained stable through the period.
IB. Solar Activity Forecast
Solar activity is expected to low with a slight chance for an isolated M-class event.
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
The geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit was at high levels throughout the period.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be mostly active with isolated minor storm conditions, and isolated major storm levels at high latitudes, for day one (04 June). Activity is expected due to the combination of effects from a coronal hole high-speed stream and a CME observed on 02 June. Quiet to unsettled levels with isolated active conditions are expected for day two (05 June). Day three (06 June) is expected to be quiet to unsettled as activity effects subside.
III. Event Probabilities 04 Jun to 06 Jun
Class M10%10%10%
Class X05%05%05%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       03 Jun 107
  Predicted   04 Jun-06 Jun  106/104/102
  90 Day Mean        03 Jun 107
V. Geomagnetic A Indices
  Observed Afr/Ap 02 Jun  006/008
  Estimated     Afr/Ap 03 Jun  005/005
  Predicted    Afr/Ap 04 Jun-06 Jun  020/025-015/018-008/010
VI. Geomagnetic Activity Probabilities 04 Jun to 06 Jun
A. Middle Latitudes
Active40%30%15%
Minor storm20%10%05%
Major-severe storm05%01%01%
B. High Latitudes
Active45%35%25%
Minor storm25%20%10%
Major-severe storm05%05%01%

All times in UTC

<< 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!

SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/12/08X2.2
Last M-flare2024/12/23M1.0
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024106.6 -45.9
Last 30 days116.1 -41.8

This day in history*

Solar flares
12015M6.75
21998M3.34
32013M2.36
42013M1.97
52001M1.69
DstG
12002-67
22000-62G2
31989-60
42014-57
51982-53G1
*since 1994

Social networks