Viewing archive of Saturday, 1 August 1998

Solar activity report

Report of Solar-Geophysical Activity 1998 Aug 01 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 213 Issued at 2200Z on 01 AUG 1998

IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z

SOLAR ACTIVITY WAS LOW, BASED ON A SINGLE UNCORRELATED C3 FLARE AT 01/1820Z. IN ADDITION, A B7/1F EVENT WITH STRONG ASSOCIATED TYPE II/IV RADIO SWEEPS WAS OBSERVED FROM REGION 8288 (S27E25) AT 01/0630Z. REGION 8282 (N30W60) HAS DECREASED IN SIZE AND SPOT COUNT SINCE YESTERDAY, AND IS CURRENTLY A 4-SPOT 'CA0' BETA GROUP.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW TO LOW. ADDITIONAL C-CLASS FLARES ARE POSSIBLE IN REGIONS 8282, 8283 (N27E04), AND 8288. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 31/2100Z TO 01/2100Z: THE GEOMAGNETIC FIELD HAS BEEN QUIET TO ACTIVE FOR THE PAST 24 HOURS, WITH A SINGLE PERIOD OF MINOR STORMING RECORDED IN BOULDER DURING THE INTERVAL 01/1500-1800Z.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS EXPECTED TO BE MOSTLY UNSETTLED, WITH THE CHANCE FOR ISOLATED PERIODS OF ACTIVE CONDITIONS, FOR THE NEXT 24 HOURS. CONDITIONS ON DAYS TWO AND THREE ARE EXPECTED TO BE QUIET TO UNSETTLED.
III. Event Probabilities 02 AUG to 04 AUG
Class M10%05%05%
Class X01%01%01%
Proton01%01%01%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       01 AUG 112
  Predicted   02 AUG-04 AUG  110/108/108
  90 Day Mean        01 AUG 110
V. Geomagnetic A Indices
OBSERVED AFR/AP 31 JUL  021/033
ESTIMATED AFR/AP 01 AUG  015/015
PREDICTED AFR/AP 02 AUG-04 AUG  015/020-010/015-010/012
VI. Geomagnetic Activity Probabilities 02 AUG to 04 AUG
A. Middle Latitudes
Active20%15%15%
Minor storm10%05%05%
Major-severe storm05%01%01%
B. High Latitudes
Active25%15%15%
Minor storm15%05%05%
Major-severe storm05%01%01%

<< Go to daily overview page

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!

79%

Space weather facts

Last X-flare2017/09/10X8.2
Last M-flare2020/05/29M1.1
Last geomagnetic storm2020/04/20Kp5 (G1)
Spotless days
Last 365 days295 days
2020157 days (72%)
Last spotless day2020/07/20

This day in history*

Solar flares
12001M4.9
21999M1.9
32003M1.7
42001M1.7
51999M1.5
ApG
1201142G4
2201934G1
3200025G1
4200121G1
5201616
*since 1994

Social networks