Message:19259 In: SPACWX.USA
From: N4SDDate: Sat, 21 Mar 26 05:22:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather Message Code: ALTK06
Message-ID: <9459_N4SD>
Path: K7EK|K7EK|WW6Q|N3MEL|KA3VSP|N4SD
R:260321/0529z @:K7EK.#NOKY.KY.USA.NOAM $:9459_N4SD
R:260321/0529Z 44282@K7EK.#NOKY.KY.USA.NOAM BPQ6.0.25
R:260321/0529Z 49517@WW6Q.#NEIN.IN.USA.NOAM LinBPQ6.0.25
R:260321/0528Z 13985@N3MEL.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260321/0523Z 55843@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260321/0522Z 9459@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
WOXX12 KWNP 210521
ALTK06
Space Weather Message Code: ALTK06
Serial Number: 703
Issue Time: 2026 Mar 21 0517 UTC
ALERT: Geomagnetic K-index of 6
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
# 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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