Viewing archive of Wednesday, 5 April 2023

Solar activity report

Report of Solar-Geophysical Activity 2023 Apr 05 2205 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 95 Issued at 2200Z on 05 Apr 2023

IA. Analysis of Solar Active Regions and Activity from 04-2100Z to 05-2100Z

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C1.9 event observed at 05/1217Z. There are currently 3 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 (06 Apr, 07 Apr, 08 Apr).
IIA. Geophysical Activity Summary 04-2100Z to 05-2100Z
The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 534 km/s at 04/2333Z. Total IMF reached 6 nT at 05/0331Z. The maximum southward component of Bz reached -4 nT at 04/2112Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 3213 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on day one (06 Apr) and quiet levels on days two and three (07 Apr, 08 Apr).
III. Event Probabilities 06 Apr to 08 Apr
Class M10%10%10%
Class X05%05%05%
Proton05%05%05%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       05 Apr 137
  Predicted   06 Apr-08 Apr 140/140/140
  90 Day Mean        05 Apr 170

V. Geomagnetic A Indices
  Observed Afr/Ap 04 Apr  010/011
  Estimated     Afr/Ap 05 Apr  011/012
  Predicted    Afr/Ap 06 Apr-08 Apr  009/008-006/005-005/005

VI. Geomagnetic Activity Probabilities 06 Apr to 08 Apr
A. Middle Latitudes
Active20%15%15%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%15%
Minor storm25%20%20%
Major-severe storm25%20%20%

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-flare2024/12/23M8.9
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
12024M8.9
22015M6.75
31998M3.34
42013M2.36
52013M1.97
DstG
12002-67
22000-62G2
31989-60
42014-57
51982-53G1
*since 1994

Social networks