Message:24652 In: SPACWX.USA
From: N4SDDate: Wed, 24 Jun 26 12:32:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <16970_N4SD>
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FXXX10 KWNP 241231
DAYTDF
:Product: 3-Day Forecast
:Issued: 2026 Jun 24 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 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jun 24-Jun 26 2026 is 4.00 (below NOAA
Scale levels).
NOAA Kp index breakdown Jun 24-Jun 26 2026
Jun 24 Jun 25 Jun 26
00-03UT 2.33 3.67 3.33
03-06UT 2.00 4.00 3.00
06-09UT 2.67 2.67 2.00
09-12UT 1.67 2.67 2.00
12-15UT 2.67 1.67 3.00
15-18UT 2.67 1.67 3.33
18-21UT 3.67 2.67 3.33
21-00UT 3.67 3.67 3.33
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 24-Jun 26 2026
Jun 24 Jun 25 Jun 26
S1 or greater 1% 1% 1%
Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.
C. NOAA Radio Blackout Activity and Forecast
No radio blackouts were observed over the past 24 hours.
Radio Blackout Forecast for Jun 24-Jun 26 2026
Jun 24 Jun 25 Jun 26
R1-R2 30% 30% 30%
R3 or greater 5% 5% 5%
Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts
over 24-26 Jun due primarily to the flare potential of farside regions
currently rotating into view from the East limb.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
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