Viewing archive of Monday, 14 April 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 Apr 14 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 104 Issued at 2200Z on 14 APR 1997

IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z

SOLAR ACTIVITY BECAME LOW. AN OPTICALLY UNCORRELATED C1 FLARE OCCURRED AT 14/0842Z. REGION 8031 (S29W62) CONTINUED TO INCREASE IN AREAL COVERAGE. THIS REGION IS NOW A SMALL TO MODERATE SIZE D-CLASS GROUP. A NEW REGION EMERGED NEAR S23E21 AND WAS NUMBERED AS REGION 8032.
IB. Solar Activity Forecast
SOLAR ACTIVITY SHOULD REMAIN AT A LOW LEVEL FOR THE NEXT TWO DAYS. REGION 8031 IS THE EXPECTED SOURCE OF LOW LEVEL C-CLASS EVENTS. VERY LOW LEVELS ARE FORECAST TO RETURN ON 17 APR AS REGION 8031 CROSSES THE WEST LIMB.
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO SLIGHTLY UNSETTLED. RECENT SOLAR WIND DATA SHOWED A DECREASING TREND IN SOLAR WIND VELOCITY.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS FORECAST TO BE QUIET TO SLIGHTLY UNSETTLED FOR THE NEXT THREE DAYS.
III. Event Probabilities 15 APR to 17 APR
Class M10%10%05%
Class X01%01%01%
Proton01%01%01%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       14 APR 077
  Predicted   15 APR-17 APR  078/079/076
  90 Day Mean        14 APR 074
V. Geomagnetic A Indices
OBSERVED AFR/AP 13 APR  007/008
ESTIMATED AFR/AP 14 APR  005/008
PREDICTED AFR/AP 15 APR-17 APR  005/008-005/008-005/008
VI. Geomagnetic Activity Probabilities 15 APR to 17 APR
A. Middle Latitudes
Active10%10%10%
Minor storm10%10%10%
Major-severe storm05%05%05%
B. High Latitudes
Active15%15%15%
Minor storm10%10%10%
Major-severe storm05%05%05%

All times in UTC

<< Go to daily overview page

Active geomagnetic conditions

Observed Kp: 4
Threshold reached: 17:46 UTC

Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future

Vorkuta

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Arkhangelsk

Current data suggests there is a slight possibility for aurora to appear at the following middle latitude regions in the near future

Petrozavodsk, Surgut, Syktyvkar
The Disturbance Storm Time index predicts moderate storm conditions right now (-52nT)
The maximum X-ray flux of the past two hours is:
C7.08

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!

Donate SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

18:00 UTC - Geomagnetic activity

Active geomagnetic conditions (Kp4) Threshold Reached: 17:46 UTC

alert


15:30 UTC - Solar flare

Moderate M1.36 flare

alert


15:15 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.36)


13:00 UTC - Solar flare

Moderate M2.36 flare

alert


12:39 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.18)


Get instant alerts!

Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/12M2.3
Last geomagnetic storm2025/04/06Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025139.5 +5.3
Last 30 days136.6 -3.5

This day in history*

Solar flares
12001X2.9
22002M5.79
32013M4.79
42025M2.6
52025M2.3
DstG
12001-236G3
21990-174G4
31981-163G3
42014-87G1
51978-80G3
*since 1994

Social networks