Message:20191 In: SPACWX.USA
From: N4SDDate: Fri, 03 Apr 26 16:51:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather Message Code: ALTK07
Message-ID: <10399_N4SD>
Path: K7EK|KI0BK|N5CTS|N9SEO|WW6Q|N3MEL|KA3VSP|N4SD
R:260403/1832z @:K7EK.#NOKY.KY.USA.NOAM $:10399_N4SD
R:260403/1831Z 26143@KI0BK.#NEKS.KS.USA.NOAM LinBPQ6.0.24
R:260403/1230Z @:N5CTS.#NEO.OK.USA.NOAM #:2992 [Bartleville, OK] FBB7.00i
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R:260403/1823Z 15087@N3MEL.#EPA.PA.USA.NOAM LinBPQ6.0.25
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R:260403/1651Z 10399@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
WOXX14 KWNP 031651
ALTK07
Space Weather Message Code: ALTK07
Serial Number: 216
Issue Time: 2026 Apr 03 1647 UTC
ALERT: Geomagnetic K-index of 7
Synoptic Period: 1500-1800 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
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