Solar activity report

Viewing archive of Thursday, 3 May 2001

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 2001 May 03 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 123 Issued at 2200Z on 03 May 2001

IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z

Solar activity was low. The largest events were a C2/Sf event at 03/0405 UTC from Region 9445 (N25E10) and a C2/Sf at 03/1602 UTC from Region 9447 (N12W27). These two regions produced most of the solar activity during the period. Region 9447 grew in size and spot count today.

IB. Solar Activity Forecast

Solar activity is expected to be low.

IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z

The geomagnetic field was quiet to unsettled.

IIB. Geophysical Activity Forecast

The geomagnetic field is expected to be continue to be quiet to unsettled with the possibility of isolated active conditions due to favorably positioned coronal holes.

III. Event Probabilities 04 May to 06 May

Class M	30%	25%	30%
Class X	01%	01%	01%
Proton	01%	01%	01%
PCAF	green

IV. Penticton 10.7 cm Flux

  Observed       03 May 172
  Predicted   04 May-06 May  170/165/160
  90 Day Mean        03 May 169

V. Geomagnetic A Indices

  Observed Afr/Ap 02 May  004/006
  Estimated     Afr/Ap 03 May  008/010
  Predicted    Afr/Ap 04 May-06 May  015/015-012/015-010/012

VI. Geomagnetic Activity Probabilities 04 May to 06 May

A. Middle Latitudes
Active	15%	15%	15%
Minor storm	05%	05%	05%
Major-severe storm	01%	01%	01%

B. High Latitudes
Active	20%	20%	20%
Minor storm	15%	15%	10%
Major-severe storm	01%	01%	01%

All times in UTC

Previous rotation Previous day Calendar

Next day Next rotation

<< Go to daily overview page

Currently there's no noteworthy space weather

Latest news

Monday, 2 June 2025

The CME did not disappoint! More storming activity to come?

Saturday, 31 May 2025

M8.2 solar flare, Strong G4 geomagnetic storm watch

Wednesday, 14 May 2025

Another X-flare! Potent sunspot region 4087!

More news

Latest forum messages

Filaments and prominences 254 GLE. Ground Level Enhancements 19 Anyone Looking At VLF? 14 AR 14161 6 ACE, DSCOVR, GOES Satellite Outages / NOAA Website Malfunction 1

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!