Viewing archive of Monday, 2 March 1998
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 1998 Mar 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 061 Issued at 2200Z on 02 MAR 1998IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z SOLAR ACTIVITY WAS LOW. REGION 8171 (S23W36) CONTINUED
TO GROW IN WHITE LIGHT. SUNSPOT AREA AND NUMBER HAS INCREASED BUT
MAGNETIC COMPLEXITY REMAINS RELATIVELY SIMPLE. THIS REGION HAS
PRODUCED SEVERAL SUBFLARES SINCE YESTERDAY, THE LARGEST BEING A
C1/SF AT 02/1216Z. DUE TO INCLEMENT WEATHER AT THE DOMINION RADIO
ASTROPHYSICAL OBSERVATORY (PENTICTON), TODAY'S NOON 10.7 CM RADIO
FLUX VALUE IS ESTIMATED AS THEIR MORNING (1700Z) READING.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW.
ADDITIONAL C-CLASS FLARES ARE EXPECTED FROM REGION 8171. THE
LIKELIHOOD OF M-CLASS ACTIVITY SHOULD INCREASE IF DEVELOPMENT
CONTINUES.
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
THE GEOMAGNETIC FIELD RANGED FROM QUIET TO ACTIVE. ACTIVE CONDITIONS
WERE OBSERVED AT MANY LOCATIONS DURING THE 02/0600-0900Z PERIOD. THE
GREATER THAN 2 MEV ELECTRON FLUX WAS MODERATE AFTER ABOUT 02/1600Z.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED.
III. Event Probabilities 03 MAR to 05 MAR
| Class M | 05% | 10% | 15% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 02 MAR 092 Predicted 03 MAR-05 MAR 100/100/098 90 Day Mean 02 MAR 095
V. Geomagnetic A Indices
OBSERVED AFR/AP 01 MAR 009/012 ESTIMATED AFR/AP 02 MAR 012/012 PREDICTED AFR/AP 03 MAR-05 MAR 005/005-010/010-010/015
VI. Geomagnetic Activity Probabilities 03 MAR to 05 MAR
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 05% | 10% | 10% |
| Major-severe storm | 01% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 05% | 10% | 10% |
| Major-severe storm | 01% | 05% | 05% |
All times in UTC
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