Viewing archive of Tuesday, 2 November 1999
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 1999 Nov 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 306 Issued at 2200Z on 02 NOV 1999IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z SOLAR ACTIVITY WAS LOW. THERE ARE SEVEN SPOTTED
REGIONS ON THE DISK. MINOR GROWTH AND INCREASED MAGNETIC COMPLEXITY
WERE REPORTED IN REGIONS 8747 (N12W11) AND 8749 (S18W11). ALL OTHER
REGIONS APPEAR STABLE OR DECLINING.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO VERY LOW. LONGITUDES THAT WERE ACTIVE LAST MONTH WILL BE
RETURNING TO THE EAST LIMB OVER THE NEXT FEW DAYS AND MAY RESULT IN
INCREASED ACTIVITY LATE IN THE PERIOD.
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
THE GEOMAGNETIC FIELD HAS BEEN QUIET TO UNSETTLED.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE GENERALLY QUIET TO UNSETTLED AT THE START OF THE
PERIOD. THE FIELD MAY BECOME MORE ACTIVE LATE IN THE PERIOD AS A
RESULT OF A SMALL CORONAL HOLE.
III. Event Probabilities 03 NOV to 05 NOV
| Class M | 15% | 10% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 02 NOV 143 Predicted 03 NOV-05 NOV 140/135/130 90 Day Mean 02 NOV 155
V. Geomagnetic A Indices
OBSERVED AFR/AP 01 NOV 009/010 ESTIMATED AFR/AP 02 NOV 007/007 PREDICTED AFR/AP 03 NOV-05 NOV 010/009-008/015-008/007
VI. Geomagnetic Activity Probabilities 03 NOV to 05 NOV
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 35% | 35% | 30% |
| Minor storm | 20% | 30% | 20% |
| Major-severe storm | 05% | 05% | 05% |
All times in UTC
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