Message:19246 In: SPACWX.USA
From: N4SDDate: Fri, 20 Mar 26 23:31:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather Message Code: ALTK07
Message-ID: <9437_N4SD>
Path: K7EK|K7EK|N3MEL|KA3VSP|N4SD
R:260320/2335z @:K7EK.#NOKY.KY.USA.NOAM $:9437_N4SD
R:260320/2335Z 44246@K7EK.#NOKY.KY.USA.NOAM BPQ6.0.25
R:260320/2333Z 13938@N3MEL.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260320/2332Z 55811@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260320/2331Z 9437@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
WOXX14 KWNP 202331
ALTK07
Space Weather Message Code: ALTK07
Serial Number: 212
Issue Time: 2026 Mar 20 2329 UTC
ALERT: Geomagnetic K-index of 7
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
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
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73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
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