Viewing archive of Monday, 27 November 2000

Solar activity report

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2000 Nov 27 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 332 Issued at 2200Z on 27 Nov 2000

IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z

Solar activity was low. Only a few low-level C-class flares occurred. Region 9236 (N19W51) has started to decline in most parameters since yesterday's major flare. New Region 9244 (N15W30) is emerging rapidly to the east of 9236 and has already generated a C-class subflare. New Region 9243 (S12E30) was also numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be moderate to high. Region 9236 retains enough magnetic complexity for another major flare. If Region 9244 continues to emerge at its present rate it could start producing low-level M-class activity.
IIA. Geophysical Activity Summary 26-2100Z to 27-2100Z
The geomagnetic field ranged from unsettled to major storm levels. This activity has been in response to the flare/CME activity on 24-25 November. The greater than 10 MeV proton event remains in progress but is declining. The peak flux was 942 pfu at 26/2030 UTC. The greater than 100 MeV proton event ended at 26/2040 UTC.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at active to major storm levels. CME's that occurred on 26-27 November are expected to extend the present disturbance. Barring any new CME's, the level of geomagnetic activity is expected to diminish to unsettled to active levels by the third day of the forecast period. The greater than 10 MeV proton event is expected to continue its decay, ending within the next 48 hours.
III. Event Probabilities 28 Nov to 30 Nov
Class M70%60%50%
Class X30%20%10%
Proton95%20%10%
PCAFin progress
IV. Penticton 10.7 cm Flux
  Observed       27 Nov 192
  Predicted   28 Nov-30 Nov  185/180/175
  90 Day Mean        27 Nov 175
V. Geomagnetic A Indices
  Observed Afr/Ap 26 Nov  019/022
  Estimated     Afr/Ap 27 Nov  040/040
  Predicted    Afr/Ap 28 Nov-30 Nov  030/040-030/025-020/020
VI. Geomagnetic Activity Probabilities 28 Nov to 30 Nov
A. Middle Latitudes
Active20%30%30%
Minor storm20%20%10%
Major-severe storm30%25%10%
B. High Latitudes
Active35%40%40%
Minor storm40%30%10%
Major-severe storm25%15%05%

All times in UTC

<< Go to daily overview page

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

Iqaluit, NU
Nuuk
Oulu, Rovaniemi, Sodankylä, Utsjoki
Reykjavik
Kirkenes, Tromsø
Murmansk
Kiruna, Luleå

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

14:54 UTC - Solar flare

Moderate M1.41 flare

alert


14:39 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.41)


12:33 UTC - Solar flare

Moderate M3.39 flare

alert


12:18 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M3.39)


Thursday, 20 February 2025
09:15 UTC - 10cm Radio Burst

Begin Time: 20/02/2025 04:44 UTC Maximum Time: 20/02/2025 04:44 UTC Duration: 1 minutes. Peak flux: 200 sfu


Get instant alerts!

Space weather facts

Last X-flare2025/01/04X1.85
Last M-flare2025/02/21M1.4
Last geomagnetic storm2025/02/19Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
January 2025137 -17.5
February 2025152.1 +15.1
Last 30 days149.4 -13.7

This day in history*

Solar flares
12024X1.9
22002M5.62
32023M5.0
42023M4.7
52025M3.3
DstG
11992-171G3
21994-135G4
31973-121G3
41979-107G3
51990-67
*since 1994

Social networks