SPACE WEATHER INFORMATION AND FORECAST SERVICESS

Center for Space Research
The National Research and Innovation Agency
BRIN - Indonesia

2025 Nov 14

Geomagnet

Major Storm

Ionosphere

Moderate

Forecast

Geomagnet

Minor Storm

Ionosphere

Minor

Issued : 2025 November 15 0800 UTC
Forecast Valid For 24 Hours

ESSENTIAL INFORMATION FOR SPACE WEATHER COMMUNITIES

HF Radio Communication

MUF Depression

Shortwave Fadeout / Radio Blackout

Application

NAVIGATION

Error Positioning

SATELLITES

High Energy Proton

High Energy Electron

Detailed Information

Solar Activity

Solar activity was eruptive in the last 24 hours.
There were 15 C-class flares with the maximum flare class was C5.0 from NOAA 4276 peaked at 13:26UT. There were 3 type-III radiobursts and 6 CME events occurred in the last 24 hours. The east-directed CME has the highest median velocity of 629 km/s with an angular width of 12 degrees and the west-directed CME has the highest median velocity of 304 km/s with an angular width of 64 degrees. The latest SDO/HMI Intensitygram data shows 7 active regions (NOAA 4274, 4275, 4276, 4277, 4279, 4280, and 4281) and the latest BBSO H-Alpha data shows 2 plages (NOAA 4272, and 4278). Based on farside data, 1 new region is hping to emerge from the east limb of the solar disk in the next 72 hours.

Based on today's condition, 
Solar activity for 14 November 2025 04UT - 15 November 2025 04UT is predicted to be major flare.
Solar activity for 15 November 2025 04UT - 16 November 2025 04UT is predicted to be eruptive.
Solar activity for 16 November 2025 04UT - 17 November 2025 04UT is predicted to be eruptive.

Geomagnetic Activity

The geomagnetic activity was on major storm level for the last 24 hours.
The solar wind speed decreased from 999 km/s to 248 km/s, the north-south component of the interplanetary magnetic field stable around -0.5 nT. There was one geoeffective coronal hole at western equator, while the others at north-east, south-east and north pole were not geoeffective. CME on 13 November 2025 14:54 UT was erupted toward north-west with a speed of 304 km/s and an angular width of 64°. The CME was geoeffective and not likely to have an impact until next 3 days.

Major storm level geomagnetic activity is expected for the next 24 hours.
Minor storm level geomagnetic activity is expected for 15 November 2025 07UT - 16 November 2025 07UT
Active level geomagnetic activity is expected for 16 November 2025 07UT - 17 November 2025 07UT

Ionospheric Activity

Ionospheric conditions over the past 24 hours cannot be evaluated.

Ionospheric activity over the past 24 hours, related to foF2, fmin, Spread-F, and E-Sporadic values, could not be evaluated due to constraints at the observation station. In the past 24 hours, the ionospheric scintillation index (S4) over Pontianak was less than 0.5, and the maximum TEC value was 98.55, both observed over Pontianak.

Ionospheric activity on November 14, 2025, 04:00 UT - November 15, 2025, 03:59 UT is predicted to be at a moderate level.
Ionospheric activity on November 15, 2025, 04:00 UT - November 16, 2025, 03:59 UT is predicted to be at a minor level.
Ionospheric activity is predicted to be minor on November 16, 2025, at 04:00 UT - November 17, 2025, at 03:59 UT

Navigation

Single-frequency GPS positioning errors over the past 24 hours are within normal level, based on variations in ionospheric scintillation and TEC.

Positioning error probabilities for November 14, 2025, at 04:00 UT - November 15, 2025, at 03:59 UT are predicted to be within normal level, based on variations in ionospheric scintillation and TEC.
Positioning error probabilities for November 15, 2025, at 04:00 UT - November 16, 2025, at 03:59 UT are predicted to be within normal level, based on variations in ionospheric scintillation and TEC.
The probability of positioning error for November 16, 2025, 04:00 UT - November 17, 2025, 03:59 UT is predicted to be at a normal level, based on variations in ionospheric scintillation and TEC.

HF Radio Communication

In the last 24 hours, the Maximum Usable Frequency (MUF) Depression and Short Wave Fadeout (SWF) could not be evaluated.

The MUF Depression for November 14, 2025, 04:00 UT - November 15, 2025, 03:59 UT is predicted to be at a strong level, based on the geomagnetic activity that has occurred.
The MUF Depression for November 15, 2025, 04:00 UT - November 16, 2025, 03:59 UT is predicted to be at a moderate level, based on the geomagnetic activity that has occurred.
The MUF Depression for November 16, 2025, 04:00 UT - November 17, 2025, 03:59 UT is forecasted at a minor level, based on past geomagnetic activity.

The SWF for November 14, 2025, 04:00 UT - November 15, 2025, 03:59 UT is forecasted at a strong level, based on predicted solar flare classes.
The SWF for November 15, 2025, 04:00 UT - November 16, 2025, 03:59 UT is forecasted at a minor level, based on predicted solar flare classes.
The SWF for November 16, 2025, 04:00 UT - November 17, 2025, 03:59 UT is forecasted at a minor level, based on predicted solar flare classes.

Satellites

The electron flux was on high level for the last 24 hours.

High level of electron flux is expected for the next 24 hours.
High level of electron flux is expected for 15 November 2025 07UT - 16 November 2025 07UT
High level of electron flux is expected for 16 November 2025 07UT - 17 November 2025 07UT

The flux of high-energy protons was major proton event for the last 24 hours.

Based on today's conditions, 
The flux of high-energy protons for 14 November 2025 04UT - 15 November 2025 04UT is predicted to be event in progress.
The flux of high-energy protons for 15 November 2025 04UT - 16 November 2025 04UT is predicted to be quiet.
The flux of high-energy protons for 16 November 2025 04UT - 17 November 2025 04UT is predicted to be quiet.