Viewing archive of Sunday, 4 May 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 May 04 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 124 Issued at 2200Z on 04 MAY 1997IA. Analysis of Solar Active Regions and Activity from 03-2100Z to 04-2100Z
SOLAR ACTIVITY REMAINED VERY LOW. SEVERAL OPTICALLY
UNCORRELATED SMALL B-CLASS FLARES OCCURRED. SMALL REGION 8037
(S26W42) DECAYED. A LARGE, CURRENTLY QUIESCENT, PROMINENCE WAS
VISIBLE NEAR THE EQUATOR AT THE NORTHEAST LIMB.
IB. Solar Activity Forecast
SOLAR ACTIVITY SHOULD CONTINUE AT A
VERY LOW LEVEL FOR THE NEXT THREE DAYS.
IIA. Geophysical Activity Summary 03-2100Z to 04-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO SLIGHTLY UNSETTLED. SOLAR WIND
VELOCITIES DECREASED TO JUST OVER 400 KM/S.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
FORECAST TO BE QUIET TO SLIGHTLY UNSETTLED FOR THE NEXT THREE DAYS.
III. Event Probabilities 05 MAY to 07 MAY
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 04 MAY 071 Predicted 05 MAY-07 MAY 072/072/072 90 Day Mean 04 MAY 074
V. Geomagnetic A Indices
OBSERVED AFR/AP 03 MAY 010/009 ESTIMATED AFR/AP 04 MAY 008/008 PREDICTED AFR/AP 05 MAY-07 MAY 008/008-005/010-005/010
VI. Geomagnetic Activity Probabilities 05 MAY to 07 MAY
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
Latest news
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Saturday, 22 March 2025
Strong G3 geomagnetic storm watch for 23 March
Latest forum messages
AR 4055 43Filaments and prominences 5May storm revisited 1CME 19Filaments and prominences (old topic) 756
More topicsSupport 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!
Latest alerts
13:00 UTC - Solar flare
Moderate M2.36 flare
12:39 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.18)
12:03 UTC - Solar flare
Moderate M2.7 flare
11:36 UTC - Solar flare
Moderate M2.08 flare
11:18 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.82)
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/12 | M2.3 |
| Last geomagnetic storm | 2025/04/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 139.5 +5.3 |
| Last 30 days | 136.6 -3.5 |