Message:25487 In: SPACWX.USA
From: N4SDDate: Tue, 07 Jul 26 00:32:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <18132_N4SD>
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FXXX10 KWNP 070031
DAYTDF
:Product: 3-Day Forecast
:Issued: 2026 Jul 07 0030 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 Jul 07-Jul 09 2026 is 3.67 (below NOAA
Scale levels).
NOAA Kp index breakdown Jul 07-Jul 09 2026
Jul 07 Jul 08 Jul 09
00-03UT 1.67 1.33 3.00
03-06UT 1.33 1.33 3.67
06-09UT 1.33 1.33 2.67
09-12UT 1.67 1.67 2.67
12-15UT 1.67 1.33 2.67
15-18UT 1.33 1.33 2.00
18-21UT 1.33 1.67 2.00
21-00UT 1.33 1.67 2.67
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 Jul 07-Jul 09 2026
Jul 07 Jul 08 Jul 09
S1 or greater 5% 5% 5%
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 Jul 07-Jul 09 2026
Jul 07 Jul 08 Jul 09
R1-R2 55% 20% 20%
R3 or greater 10% 5% 5%
Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely on Jul 07.
There is a slight chance for R1-R2 radio blackout events on July 08-09.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
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