Homepage | NOAA / NWS Space Weather Prediction Center
WEBG1-G3 (Minor-Strong) Geomagnetic Storm Watches have been issued for 03-05 October, due to the forecast arrival of the CME associated with the X7.1. R3 (Strong) Flare Erupts from Region 3842 to Start October 2024. published:
Geomagnetic Storms - NOAA / NWS Space Weather Prediction …
WEBThis index is the basis for one of the three NOAA Space Weather Scales, the Geomagnetic Storm, or G-Scale, that is used to describe space weather that can disrupt systems on Earth.
3-Day Geomagnetic Forecast - NOAA / NWS Space Weather …
WEBA daily deterministic and probabilistic forecast, for next three days, of geomagnetic activity. Observed values of Ap and deterministic Ap forecasts are provided, followed by probabilistic forecasts for four categories of geomagnetic activity, and deterministic 3 …
3-Day Forecast | NOAA / NWS Space Weather Prediction Center
WEBThis product is designed to be a one page, simple look at recently observed and a three day forecast of space weather conditions. A brief description of why conditions occurred or are forecast is also included for each category.
NOAA Space Weather Scales - NOAA / NWS Space Weather …
WEBThe scales describe the environmental disturbances for three event types: geomagnetic storms, solar radiation storms, and radio blackouts. The scales have numbered levels, analogous to hurricanes, tornadoes, and earthquakes that convey severity.
Geomagnetic Storm Conditions Likely 2 - NOAA / NWS Space …
WEBFeb 3, 2022 — Geomagnetic Storm Conditions Likely 2 - 3 February, 2022. A G2 (Moderate) geomagnetic storm watch is in effect for the 2 February, 2022, UTC-day due to anticipated CME arrival. NOAA/SWPC Region 2936 produced an M1 flare (R1-Minor Radio Blackout) on 29 January at 6:32 pm ET (29/2332 UTC).
Alerts, Watches and Warnings | NOAA / NWS Space Weather …
WEBSimilar to the bulletins put out by the NWS local forecast offices, SWPC provides Alerts, Watches and Warnings to the public at large about what to expect from Space Weather. These bulletins are levels of severity of the solar activity that can be expected to impact the Earth’s environment.
G4 (Severe) Reached - NOAA / NWS Space Weather Prediction …
WEBAug 13, 2024 — Geomagnetic storm conditions steadily intensified throughout the weekend into early Monday, culminating in a G4 (Severe) Geomagnetic Storm shortly before 1500 UTC. The SWPC has maintained continuous communication with power grid reliability coordination centers.
G5 Conditions Observed! - NOAA / NWS Space Weather …
WEBMay 11, 2024 — Current Space Weather Conditions. Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact. Low-frequency navigation signals degraded for brief intervals.
Planetary K-index | NOAA / NWS Space Weather Prediction Center
WEB4 days ago — The planetary 3-hour-range index Kp is the mean standardized K-index from 13 geomagnetic observatories between 44 degrees and 60 degrees northern or southern geomagnetic latitude. The label 'K' comes from the German word 'Kennziffer' meaning 'characteristic digit.'