Search
Close this search box.

Solar Storm Watch WARNING: Geomagnetic Sudden Impulse Occurred & G4 Storm Predicted 4-23-23

Solar Storm Watch WARNING Geomagnetic Sudden Impulse Occurred & G4 Storm Predicted 4-23-23

NOAA Space Weather Report

NOAA has released information that a Geomagnetic Sudden Impulse occurred at 1834 UTC and a G4 Level Storm Predicted at 1945 UTC Universal Time Coordinated on Sunday 4-23-23.

In this Solar Maximum 11-year cycle, Geomagnetic Solar storms affect on our planet and near-earth space could be severe on Sunday 4-23-23. Affected components could be spacecraft, power grids, navigation systems, and radio systems.

G4 (SEVERE) GEOMAGNETIC K-INDEX OF 8, 9 THRESHOLD REACHED: 2023 1945 UTC

NOAA Space Weather Product Code: ALTK08
Serial Number: 27
Issue Time: 2023 APR 23 1945 UTC
Prepared by: US Dept. of Commerce, NOAA, Space Weather Prediction Center

ALERT: Geomagnetic K-index of 8, 9-
Threshold Reached: 2023 Apr 23 1944 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G4 - Severe

Potential Impacts: Area of impact primarily poleward of 45 degrees Geomagnetic Latitude.  
Power Grid - Possible widespread voltage control problems.  
Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
Radio - HF (high frequency) radio propagation sporadic or blacked out.
Aurora - Aurora may be seen as low as Alabama and northern California.

NOAA Space Weather Solar Geomagnetic Storm Scale

ScaleDescriptionEffect / Reaction
G5*ExtremePower systems: Some power grid systems may experience complete collapse or blackouts. Transformers may experience damage.
Spacecraft operations: May experience extensive surface charging, problems with orientation, uplink/downlink, and tracking satellites.
Other systems: HF (high frequency) radio transmission may be impossible in many areas for days or more.
G4SeverePower systems: Possible widespread voltage control problems and some protective systems will mistakenly trip out key assets from the grid.
Spacecraft operations: Possible surface charging, tracking, and orientation problems.
Other systems: HF radio propagation is sporadic, satellite navigation is degraded for hours, and low-frequency radio navigation is disrupted.
G3StrongPower systems: Voltage corrections may be required, and false alarms triggered on some protection devices.
Spacecraft operations: Surface charging and drag may increase on low-Earth-orbit satellites, and corrections may be needed for orientation problems.
Other systems: Intermittent satellite navigation and low-frequency radio navigation problems may occur, and HF radio may be intermittent.
G2ModeratePower systems: High-latitude power systems may experience voltage alarms, and long-duration storms may cause transformer damage.
Spacecraft operations: Corrective actions required and possible changes in drag affect orbit predictions.
Other systems: HF radio propagation can fade at higher latitudes.
G1MinorPower systems: Weak power grid fluctuations can occur.
Spacecraft operations: Minor impact on satellite operations possible.
Other systems: Migratory animals are affected at G1 and higher levels.
Table 1: NOAA Space Weather Solar Geomagnetic Storm Scale – *This scale does not include unknown variables of Solar Storms stronger than a G5 level.

Additional Geomagnetic Storm Information

For additional information please see our articles “What To Do Before a G5 or Greater Geomagnetic Storm?” and “Should You Be Worried About Weather-Caused Power Grid Outages?”

Fremontii, LLC. is compensated for referring traffic and business and as an Amazon Associate, we earn from qualifying purchases. By using the affiliate links, you are helping support our Website, and we genuinely appreciate your support.

POST CATEGORIES

We are a website that writes helpful articles about the latest technology for emergency preparedness and power grid energy. We try new devices and analyze their quality, durability, effects, for emergency preparedness.

This site is owned and operated by Fremontii, LLC. Fremontii, LLC. is a participant in Amazon Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.

Scroll to Top

POST CATEGORIES

We are a website that writes helpful articles about the latest technology for emergency preparedness and power grid energy. We try new devices and analyze their quality, durability, effects, for emergency preparedness.

This site is owned and operated by Fremontii, LLC. Fremontii, LLC. is a participant in Amazon Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.