Viewing archive of Sunday, 15 May 2022

Solar activity report

Report of Solar-Geophysical Activity 2022 May 15 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 135 Issued at 2200Z on 15 May 2022

IA. Analysis of Solar Active Regions and Activity from 14-2100Z to 15-2100Z

Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M2 event observed at 15/0008Z. There are currently 7 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with a chance for M-class flares and a slight chance for an X-class flare on days one, two, and three (16 May, 17 May, 18 May).
IIA. Geophysical Activity Summary 14-2100Z to 15-2100Z
The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 580 km/s at 15/0815Z. Total IMF reached 15 nT at 14/2116Z. The maximum southward component of Bz reached -9 nT at 15/0026Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 140 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at unsettled to active levels on day one (16 May), quiet to unsettled levels on day two (17 May) and quiet levels on day three (18 May).
III. Event Probabilities 16 May to 18 May
Class M35%35%35%
Class X10%10%10%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       15 May 154
  Predicted   16 May-18 May 154/152/152
  90 Day Mean        15 May 120

V. Geomagnetic A Indices
  Observed Afr/Ap 14 May  009/007
  Estimated     Afr/Ap 15 May  011/014
  Predicted    Afr/Ap 16 May-18 May  013/014-008/008-005/005

VI. Geomagnetic Activity Probabilities 16 May to 18 May
A. Middle Latitudes
Active35%20%15%
Minor storm10%05%01%
Major-severe storm01%01%01%
B. High Latitudes
Active15%20%15%
Minor storm30%30%20%
Major-severe storm45%25%20%

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

Nuuk
Reykjavik

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

Tórshavn
Kuopio
Trondheim
Luleå, Sundsvall, Umeå
The solar wind speed is currently moderately high (508 km/sec.)
The maximum X-ray flux of the past two hours is:
C6.38
A southern hemisphere coronal hole was detected in an earth-facing position on Tuesday, 8 April 2025

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

Tuesday, 8 April 2025
23:57 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 50GW at 00:44 UTC


22:42 UTC - Solar flare

Moderate M1.57 flare

alert


22:24 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.52)


15:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 14:59 UTC

alert


06:30 UTC - Type II Radio Emission

Begin Time: 08/04/2025 05:53 UTC Estimated Velocity: 456km/sec.


Get instant alerts!

Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/08M1.5
Last geomagnetic storm2025/04/06Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025151.3 +17.1
Last 30 days137.4 +0.1

This day in history*

Solar flares
12001X1.14
22000M4.54
32003M3.68
42002M3.12
52002M1.68
DstG
11984-100G3
21971-97G2
32006-82G2
41959-73G2
51995-68G1
*since 1994

Social networks