Solar activity report

Viewing archive of Friday, 30 October 1998

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 1998 Oct 30 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 303 Issued at 2200Z on 30 OCT 1998

IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z

SOLAR ACTIVITY WAS VERY LOW. ALL SIX SPOTTED REGIONS WERE STABLE AND UNPRODUCTIVE. REGION 8375 (N17E58) IS THE LARGEST IN WHITE LIGHT AND H-ALPHA.

IB. Solar Activity Forecast

SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW TO LOW.

IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z

THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. THE GREATER THAN 2 MEV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT WAS HIGH.

IIB. Geophysical Activity Forecast

THE GEOMAGNETIC FIELD IS EXPECTED TO PERSIST AT QUIET TO UNSETTLED LEVELS THROUGHOUT THE PERIOD.

III. Event Probabilities 31 OCT to 02 NOV

Class M	05%	05%	05%
Class X	01%	01%	01%
Proton	01%	01%	01%
PCAF	GREEN

IV. Penticton 10.7 cm Flux

  Observed       30 OCT 112
  Predicted   31 OCT-02 NOV  115/115/120
  90 Day Mean        30 OCT 131

V. Geomagnetic A Indices

OBSERVED AFR/AP 29 OCT  008/008
ESTIMATED AFR/AP 30 OCT  007/010
PREDICTED AFR/AP 31 OCT-02 NOV  005/008-005/008-005/008

VI. Geomagnetic Activity Probabilities 31 OCT to 02 NOV

A. Middle Latitudes
Active	10%	10%	10%
Minor storm	05%	05%	05%
Major-severe storm	01%	01%	01%

B. High Latitudes
Active	20%	20%	20%
Minor storm	05%	05%	05%
Major-severe storm	01%	01%	01%

All times in UTC

Previous rotation Previous day Calendar

Next day Next rotation

<< Go to daily overview page

G2 - Moderate geomagnetic storm

Observed Kp: 6
Threshold reached: 22:29 UTC

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

Rovaniemi
Luleå

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

Tórshavn
Oulu, Kuopio
Bergen, Trondheim
Arkhangelsk
Sundsvall, Umeå

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

Tampere

The solar wind speed is currently moderately high (626.7 km/sec.)
The density of the solar wind is moderate (20.84 p/cm³)

The strength of the interplanetary magnetic field is moderate (10.94nT), the direction is North (4.7nT).

The Disturbance Storm Time index predicts moderate storm conditions right now (-54nT)

Latest news

Tuesday, 15 April 2025

CME arrival, G3 storm watch

Friday, 28 March 2025

X1.1 solar flare

Monday, 24 March 2025

Coronal hole faces Earth

More news

Latest forum messages

2025/04/12-13 Filament CMEs 2025/04/16 G3 Watch 163 AR4062 25 CME from Filament eruption 4-13 circa 7utc 47 May storm revisited 7 Unspecified geomagnetic activity 2259

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