Viewing archive of Monday, 8 December 1997

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 1997 Dec 08 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 342 Issued at 2200Z on 08 DEC 1997

IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z

SOLAR ACTIVITY WAS VERY LOW. REGION 8113 (N20W87) IS QUIETLY ROTATING OFF THE VISIBLE DISK. IMPRESSIVE NEW REGION GROWTH OCCURRED TODAY WITH 3 NEW SPOTTED REGIONS DEVELOPING. NEWLY NUMBERED REGIONS INCLUDE: 8118 (S38E37), A 6 SPOT BXO GROUP, 8119 (N32E00), A 3 SPOT BXO, AND 8120 (S22E36), A 5 SPOT BXO GROUP. SEVEN SPOTTED REGIONS NOW EXIST BUT ALL ARE SMALL WITH SIMPLE MAGNETIC CONFIGURATIONS.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW TO LOW. REGION 8118 EXHIBITED SIGNS OF GROWTH AND EXPERIENCED PERIODS OF STRONG SURGING; HOWEVER, THE BIGGEST THREAT MAY COME FROM REGION 8119. ITS CLOSE PROXIMITY TO REGION 8116 (N26W03) MAY BE SIGNIFICANT IF EITHER OR BOTH REGIONS CONTINUE TO DEVELOP. BOTH REGIONS ARE SHOWING SOME SLOW GROWTH.
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
THE GEOMAGNETIC FIELD HAS BEEN QUIET AT ALL LATITUDES.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS EXPECTED TO REMAIN QUIET FOR THE NEXT 2 DAYS. UNSETTLED TO ACTIVE CONDITIONS ARE POSSIBLE ON DAY 3 DUE TO A HALO CME OBSERVED AT 06/1030UT. THE CME CORRELATED WELL WITH A VERY LONG DURATION C1 FLARE (06/1052 - 07/0041UT) FROM REGION 8113. THE APPARENT LOW SPEED OF THE CME COUPLED WITH A PRESENT LOW WIND VELOCITY SUGGEST WEDENSDAY THROUGH THURSDAY FOR GEOMAGNETIC EFFECTS.
III. Event Probabilities 09 DEC to 11 DEC
Class M05%05%10%
Class X01%01%01%
Proton01%01%01%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       08 DEC 098
  Predicted   09 DEC-11 DEC  099/099/102
  90 Day Mean        08 DEC 094
V. Geomagnetic A Indices
OBSERVED AFR/AP 07 DEC  003/003
ESTIMATED AFR/AP 08 DEC  003/008
PREDICTED AFR/AP 09 DEC-11 DEC  005/008-020/013-020/013
VI. Geomagnetic Activity Probabilities 09 DEC to 11 DEC
A. Middle Latitudes
Active10%30%30%
Minor storm05%10%10%
Major-severe storm01%01%01%
B. High Latitudes
Active10%40%40%
Minor storm05%15%15%
Major-severe storm01%01%01%

<< Go to daily overview page

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!

23%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/03/23X1.1
Last M-flare2024/03/28M6.1
Last geomagnetic storm2024/03/25Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2024124.7 +1.7

This day in history*

Solar flares
12024M7.0
22001M6.17
32024M6.1
42000M4.46
52022M4.0
ApG
1200144G2
2200327G2
3199721G2
4201727G1
5200421G1
*since 1994

Social networks