Message:19240 In: SPACWX.USA
From: N4SDDate: Fri, 20 Mar 26 20:46:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather Message Code: WATA50
Message-ID: <9430_N4SD>
Path: K7EK|K7EK|WW6Q|N3MEL|KA3VSP|N4SD
R:260320/2111z @:K7EK.#NOKY.KY.USA.NOAM $:9430_N4SD
R:260320/2110Z 44240@K7EK.#NOKY.KY.USA.NOAM BPQ6.0.25
R:260320/2110Z 49478@WW6Q.#NEIN.IN.USA.NOAM LinBPQ6.0.25
R:260320/2109Z 13929@N3MEL.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260320/2107Z 55805@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260320/2046Z 9430@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
WOXX22 KWNP 202046
WATA50
Space Weather Message Code: WATA50
Serial Number: 96
Issue Time: 2026 Mar 20 2043 UTC
WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day:
Mar 20: G3 (Strong) Mar 21: G3 (Strong) Mar 22: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: G3 (Strong) geomagnetic storming is likely due to combined CME effects from events that left the Sun on 16 and 18 Mar.
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may
occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Recent messages, data, and help at http://swpc.noaa.gov/alerts/
# Send questions to SWPC.Webmaster@noaa.gov
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
Return To Bulletin List