Message:24016 In: SPACWX.USA
From: N4SDDate: Tue, 09 Jun 26 12:31:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <15455_N4SD>
Path: N2MH4|NS2B|N3IP|KA3VSP|N4SD
R:260611/2215Z 32271@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260611/2213Z 53213@NS2B.#WNY.NY.USA.NOAM BPQ6.0.25
R:260611/2212Z 68820@N3IP.#SEPA.PA.USA.NOAM BPQK6.0.24
R:260611/2211Z 3256@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260609/1231Z 15455@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
FXXX10 KWNP 091231
DAYTDF
:Product: 3-Day Forecast
:Issued: 2026 Jun 09 1230 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
# 3-Day Forecast
#
A. NOAA Geomagnetic Activity Observation and Forecast
The greatest observed 3 hr Kp over the past 24 hours was 2 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jun 09-Jun 11 2026 is 4.00 (below NOAA
Scale levels).
NOAA Kp index breakdown Jun 09-Jun 11 2026
Jun 09 Jun 10 Jun 11
00-03UT 2.00 3.00 2.00
03-06UT 2.33 3.33 2.00
06-09UT 1.67 2.33 3.00
09-12UT 2.00 2.00 2.67
12-15UT 2.33 2.00 3.00
15-18UT 2.00 2.00 3.33
18-21UT 2.33 2.33 3.00
21-00UT 2.33 2.33 4.00
Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No
significant transient or recurrent solar wind features are forecast.
B. NOAA Solar Radiation Activity Observation and Forecast
Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.
Solar Radiation Storm Forecast for Jun 09-Jun 11 2026
Jun 09 Jun 10 Jun 11
S1 or greater 10% 10% 10%
Rationale: A slight chance of solar radiation storms are expected
through 11 Jun.
C. NOAA Radio Blackout Activity and Forecast
No radio blackouts were observed over the past 24 hours.
Radio Blackout Forecast for Jun 09-Jun 11 2026
Jun 09 Jun 10 Jun 11
R1-R2 55% 55% 55%
R3 or greater 10% 10% 10%
Rationale: Isolated R1/R2 (Minor/Moderate) radio blackouts are likely,
with a slight chance for isolated R3 (Strong) events through 11 June,
primarily due to the flare potential exhibited by Regions 4456 (N17W61,
Dai/beta), 4462 (N15W07, Dsi/beta), 4464 and 4465.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
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