Viewing archive of Wednesday, 22 March 2023

Solar activity report

Report of Solar-Geophysical Activity 2023 Mar 22 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 81 Issued at 2200Z on 22 Mar 2023

IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C1 event observed at 21/2357Z from Region 3257 (S28E40). There are currently 6 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with a slight chance for an M-class flare on days one, two, and three (23 Mar, 24 Mar, 25 Mar).
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 567 km/s at 22/1112Z. Total IMF reached 8 nT at 21/2144Z. The maximum southward component of Bz reached -6 nT at 22/0137Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 540 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to minor storm levels on day one (23 Mar), unsettled to major storm levels on day two (24 Mar) and active to minor storm levels on day three (25 Mar).
III. Event Probabilities 23 Mar to 25 Mar
Class M10%10%10%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       22 Mar 159
  Predicted   23 Mar-25 Mar 155/150/145
  90 Day Mean        22 Mar 171

V. Geomagnetic A Indices
  Observed Afr/Ap 21 Mar  008/008
  Estimated     Afr/Ap 22 Mar  014/017
  Predicted    Afr/Ap 23 Mar-25 Mar  015/020-028/040-020/030

VI. Geomagnetic Activity Probabilities 23 Mar to 25 Mar
A. Middle Latitudes
Active40%35%30%
Minor storm35%45%40%
Major-severe storm10%20%25%
B. High Latitudes
Active05%05%05%
Minor storm20%15%15%
Major-severe storm75%85%80%

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