Message:19358 In: SPACWX.USA
From: N4SDDate: Sun, 22 Mar 26 10:46:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather Message Code: ALTK07
Message-ID: <9563_N4SD>
Path: K7EK|K7EK|WW6Q|W9GM|WA2UET|K5DAT|N2MH|N2MH4|NS2B|N3IP|KA3VSP|N4SD
R:260322/1230z @:K7EK.#NOKY.KY.USA.NOAM $:9563_N4SD
R:260322/1230Z 44376@K7EK.#NOKY.KY.USA.NOAM BPQ6.0.25
R:260322/1230Z 49619@WW6Q.#NEIN.IN.USA.NOAM LinBPQ6.0.25
R:260322/1230Z 55373@W9GM.#SWWI.WI.USA.NOAM BPQ6.0.25
R:260322/1230Z 42693@WA2UET.#ENY.NY.USA.NOAM BPQ6.0.23
R:260322/1229Z 26395@K5DAT.#NEWI.WI.USA.NOAM LinBPQ6.0.25
R:260322/1228z @:N2MH.#NNJ.NJ.USA.NOAM [via Mesh] jnos 2.0p $:9563_N4SD
R:260322/1228Z 29365@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260322/1228Z 47410@NS2B.#WNY.NY.USA.NOAM BPQ6.0.25
R:260322/1226Z 64279@N3IP.#SEPA.PA.USA.NOAM BPQK6.0.24
R:260322/1224Z 55918@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260322/1046Z 9563@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
WOXX14 KWNP 221046
ALTK07
Space Weather Message Code: ALTK07
Serial Number: 214
Issue Time: 2026 Mar 22 1043 UTC
ALERT: Geomagnetic K-index of 7
Synoptic Period: 0900-1200 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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