Viewing archive of Sunday, 26 November 2023

Solar activity report

Report of Solar-Geophysical Activity 2023 Nov 26 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 330 Issued at 2200Z on 26 Nov 2023

IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C3 event observed at 26/0743Z from Region 3490 (N22W27). There are currently 11 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (27 Nov, 28 Nov, 29 Nov).
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 626 km/s at 25/2152Z. Total IMF reached 9 nT at 25/2102Z. The maximum southward component of Bz reached -6 nT at 26/0040Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 107 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on day one (27 Nov), quiet to unsettled levels on day two (28 Nov) and quiet levels on day three (29 Nov).
III. Event Probabilities 27 Nov to 29 Nov
Class M35%35%35%
Class X05%05%05%
Proton05%05%05%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       26 Nov 180
  Predicted   27 Nov-29 Nov 180/180/175
  90 Day Mean        26 Nov 149

V. Geomagnetic A Indices
  Observed Afr/Ap 25 Nov  018/030
  Estimated     Afr/Ap 26 Nov  013/016
  Predicted    Afr/Ap 27 Nov-29 Nov  010/010-007/008-006/005

VI. Geomagnetic Activity Probabilities 27 Nov to 29 Nov
A. Middle Latitudes
Active20%15%10%
Minor storm05%05%01%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%15%
Minor storm20%20%15%
Major-severe storm20%20%10%

All times in UTC

<< Go to daily overview page

G1 - Minor geomagnetic storm

Observed Kp: 5
Threshold reached: 23:37 UTC

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
Oulu, Rovaniemi, Sodankylä, Utsjoki
Kirkenes, Tromsø, Trondheim
Arkhangelsk, Murmansk
Kiruna, Luleå, Sundsvall, Umeå
The Disturbance Storm Time index predicts moderate storm conditions right now (-63nT)

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

Saturday, 22 March 2025
23:45 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 23:37 UTC

alert


Strong G3 geomagnetic storm watch for 23 March

Yesterday around 16 UTC an M1.2 solar flare took place around sunspot region 4028. The solar flare triggered a filament eruption which erupted from the center of the earth-facing solar disk.

alert

Read more
12:18 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 75GW at 13:10 UTC


03:45 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 03:35 UTC

alert


03:15 UTC - Geomagnetic activity

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

alert


Get instant alerts!

Space weather facts

Last X-flare2025/02/23X2.0
Last M-flare2025/03/21M1.2
Last geomagnetic storm2025/03/21Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
March 2025140.3 -14.3
Last 30 days140 -11.7

This day in history*

Solar flares
12024X1.12
22024M5.2
32024M3.8
42024M3.8
51998M3.17
DstG
11969-164G4
22023-125G3
31989-106G2
41966-98G3
52024-79G2
*since 1994

Social networks