Viewing archive of Wednesday, 13 April 2022

Solar activity report

Report of Solar-Geophysical Activity 2022 Apr 13 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 103 Issued at 2200Z on 13 Apr 2022

IA. Analysis of Solar Active Regions and Activity from 12-2100Z to 13-2100Z

Solar activity has been at very low levels for the past 24 hours. There are currently 3 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low with a slight chance for a C-class flare on day one (14 Apr) and expected to be very low with a chance for a C-class flares on days two and three (15 Apr, 16 Apr).
IIA. Geophysical Activity Summary 12-2100Z to 13-2100Z
The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 519 km/s at 13/0202Z. Total IMF reached 11 nT at 13/0938Z. The maximum southward component of Bz reached -5 nT at 13/0646Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1415 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at unsettled to major storm levels on day one (14 Apr), quiet to minor storm levels on day two (15 Apr) and quiet to active levels on day three (16 Apr).
III. Event Probabilities 14 Apr to 16 Apr
Class M01%05%05%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       13 Apr 099
  Predicted   14 Apr-16 Apr 100/103/105
  90 Day Mean        13 Apr 113

V. Geomagnetic A Indices
  Observed Afr/Ap 12 Apr  010/011
  Estimated     Afr/Ap 13 Apr  011/011
  Predicted    Afr/Ap 14 Apr-16 Apr  023/035-015/020-012/012

VI. Geomagnetic Activity Probabilities 14 Apr to 16 Apr
A. Middle Latitudes
Active25%35%30%
Minor storm40%30%10%
Major-severe storm25%15%01%
B. High Latitudes
Active05%05%15%
Minor storm15%20%25%
Major-severe storm79%70%40%

All times in UTC

<< Go to daily overview page

Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future

Whitehorse, YT
Fairbanks, AK

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Edmonton, AB, Gillam, MB, Saskatoon, SK, Yellowknife, NT
Anchorage, AK, Juneau, AK

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!

Donate SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

04:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 04:05 UTC

alert


03:15 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 02:59 UTC

alert


01:00 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 00:51 UTC

alert


Friday, 4 April 2025
23:30 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 23:17 UTC

alert


21:03 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 75GW at 21:49 UTC


Get instant alerts!

Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/01M2.5
Last geomagnetic storm2025/04/04Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025148 +13.8
Last 30 days130.9 -15.2

This day in history*

Solar flares
12001X1.21
22001M7.3
32001M4.52
42013M3.28
52004M2.47
DstG
11993-165G3
21968-112G3
31978-109G1
41984-108G2
51989-101G2
*since 1994

Social networks