Viewing archive of Wednesday, 30 March 2005

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 2005 Mar 30 2210 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA, #Space Environment Center and the U.S. Air Force. #

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 089 Issued at 2200Z on 30 Mar 2005

IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z

Solar activity was at very low levels today. Region 745 (N12W68) continues to show signs of decay. There is a single AXX alpha spot remaining visible in white light. No significant activity was observed on the disk or limbs during the period. No new regions were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be at very low levels.
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
The geomagnetic field was at predominantly quiet to unsettled levels. Active conditions were observed following a sustained southward Bz between 30/0600 and 0900Z. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels. Isolated active to minor storm conditions are possible on 2 April due to the onset of a recurrent high speed coronal hole stream.
III. Event Probabilities 31 Mar to 02 Apr
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       30 Mar 078
  Predicted   31 Mar-02 Apr  080/080/085
  90 Day Mean        30 Mar 097
V. Geomagnetic A Indices
  Observed Afr/Ap 29 Mar  003/005
  Estimated     Afr/Ap 30 Mar  008/009
  Predicted    Afr/Ap 31 Mar-02 Apr  005/005-008/008-015/015
VI. Geomagnetic Activity Probabilities 31 Mar to 02 Apr
A. Middle Latitudes
Active15%20%30%
Minor storm01%05%10%
Major-severe storm01%01%05%
B. High Latitudes
Active15%20%30%
Minor storm01%05%10%
Major-severe storm01%01%05%

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-flare2024/12/22M1.1
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024103.3 -49.2
Last 30 days114 -43.9

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