NOAA Space Weather Prediction Center

WARNING: Geomagnetic K-index of 5 expected Valid From: 2026 Jul 12 1410 UTC Valid To: 2026 Jul 13 2100 UTC Warning Conditions: Onset Noaa Scale: G1 - Minor Comment: NOAA Scale: G1 - Minor Issue Time: 2026 Jul 12 1411 UTC bit.ly/3wVgAKH

ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Jul 05 1758 UTC Noaa Scale: R2 - Moderate Comment: NOAA Scale: R2 - Moderate Issue Time: 2026 Jul 05 1800 UTC bit.ly/3wVgAKH

An X1.3 flare was observed at 20:41 UTC on 04 Jul 2026 from newly numbered Sunspot Region 4482.

ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Jul 04 2040 UTC Noaa Scale: R2 - Moderate Comment: NOAA Scale: R2 - Moderate Issue Time: 2026 Jul 04 2043 UTC bit.ly/3wVgAKH

Moderate to briefly strong geomagnetic storm conditions observed overnight - disturbed conditions expected to continue into 05 July.

EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 2247 Valid From: 2026 Jul 04 0100 UTC Now Valid Until: 2026 Jul 04 2359 UTC Warning Condition: Persistence NOAA Scale: G1 - Minor Issue Time: 2026 Jul 04 1412 UTC bit.ly/3wVgAKH

WARNING: Geomagnetic K-index of 6 expected Valid From: 2026 Jul 04 1356 UTC Valid To: 2026 Jul 05 2100 UTC Warning Conditions: Onset Noaa Scale: G2 - Moderate Comment: NOAA Scale: G2 - Moderate Issue Time: 2026 Jul 04 1357 UTC bit.ly/3wVgAKH

G3 (Strong) geomagnetic storm levels were reached at 04/0509 UTC (03/1109 MDT) in response to the likely arrival of the CME from 30 Jun. Stay tuned to our webpage for updates.

WARNING: Geomagnetic K-index of 7 or greater expected Valid From: 2026 Jul 04 0500 UTC Valid To: 2026 Jul 05 1200 UTC Warning Conditions: Onset Noaa Scale: G3 - Greater Comment: NOAA Scale: G3 - Greater Issue Time: 2026 Jul 04 0501 UTC bit.ly/3wVgAKH

G2 (Moderate) geomagnetic storm levels were reached at 04/0248 UTC (03/2048 MDT) in response to the likely arrival of the CME from 30 Jun. Stay tuned to our webpage for updates.

WARNING: Geomagnetic K-index of 6 expected Valid From: 2026 Jul 04 0227 UTC Valid To: 2026 Jul 04 0600 UTC Warning Conditions: Onset Noaa Scale: G2 - Moderate Comment: NOAA Scale: G2 - Moderate Issue Time: 2026 Jul 04 0228 UTC bit.ly/3wVgAKH

WARNING: Geomagnetic K-index of 5 expected Valid From: 2026 Jul 04 0100 UTC Valid To: 2026 Jul 05 0600 UTC Warning Conditions: Onset Noaa Scale: G1 - Minor Comment: NOAA Scale: G1 - Minor Issue Time: 2026 Jul 04 0101 UTC bit.ly/3wVgAKH

ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Jul 03 1856 UTC Noaa Scale: R2 - Moderate Comment: NOAA Scale: R2 - Moderate Issue Time: 2026 Jul 03 1900 UTC bit.ly/3wVgAKH

ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Jul 03 1807 UTC Noaa Scale: R2 - Moderate Comment: NOAA Scale: R2 - Moderate Issue Time: 2026 Jul 03 1810 UTC bit.ly/3wVgAKH

ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Jul 01 2306 UTC Noaa Scale: R2 - Moderate Comment: NOAA Scale: R2 - Moderate Issue Time: 2026 Jul 01 2308 UTC bit.ly/3wVgAKH

Moderate geomagnetic storm conditions are expected early on 03 July (UTC day)

EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 2244 Valid From: 2026 Jun 30 1943 UTC Now Valid Until: 2026 Jul 01 1800 UTC Warning Condition: Persistence NOAA Scale: G1 - Minor Issue Time: 2026 Jul 01 0554 UTC bit.ly/3wVgAKH

30 Jun 2026- Space Weather Update! What happened today and what might that mean as we approach July 4th weekend? Check out this SWPC video to learn about the recent solar flare, CME, and what our forecasters will analyze through the overnight and adjust the forecast as needed.

Solar wind data and display changes on our webpage due to DSCOVR data termination and SOLAR-1 being the primary instrument. Utilize the new solar wind display for data visualization spaceweather.gov/products/solar…

An X1.1 flare (R3-Strong) occurred at approx 30/2050 UTC from Region 4479 in the north center disk. Analysis will be conducted when imagery becomes available to determine if an Earth-directed CME was associated with this event.