Message 27113 in SPACWX.USA
From: N4SD
Date: Sun, 02 Aug 26 12:31:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <19898_N4SD>
Path: GB7RJJ|K7EK|NS2B|WG3K|WW6Q|W9GM|KA3BVJ|KA3VSP|N4SD
R:260802/1408Z 17745@GB7RJJ.#79.GBR.EURO LinBPQ6.0.25
R:260802/1404z @:K7EK.#NOKY.KY.USA.NOAM $:19898_N4SD
R:260802/1350Z 57015@NS2B.#WNY.NY.USA.NOAM BPQ6.0.25
R:260802/1350Z 38033@WG3K.#SMD.MD.USA.NOAM LinBPQ6.0.25
R:260802/1350Z 57209@WW6Q.#NEIN.IN.USA.NOAM LinBPQ6.0.25
R:260802/1350Z 5987@W9GM.#SWWI.WI.USA.NOAM BPQ6.0.24
R:260802/1350Z 84794@KA3BVJ.#EPA.PA.USA.NOAM BPQ1.4.65
R:260802/1347Z 5786@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260802/1231Z 19898@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
FXXX10 KWNP 021231
DAYTDF
:Product: 3-Day Forecast
:Issued: 2026 Aug 02 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 1 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Aug 02-Aug 04 2026 is 5.67 (NOAA Scale
G2).
NOAA Kp index breakdown Aug 02-Aug 04 2026
Aug 02 Aug 03 Aug 04
00-03UT 1.00 3.67 1.67
03-06UT 1.00 4.33 1.67
06-09UT 1.00 3.00 1.33
09-12UT 1.00 4.00 1.33
12-15UT 4.33 3.00 1.33
15-18UT 5.67 (G2) 2.00 1.33
18-21UT 3.33 2.00 1.67
21-00UT 4.00 1.33 1.33
Rationale: G1-G2 (Minor-Moderate) geomagnetic storms are likely on 02
Aug due to the influence of a CME that left the Sun on 30 Jul.
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 Aug 02-Aug 04 2026
Aug 02 Aug 03 Aug 04
S1 or greater 5% 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 Aug 02-Aug 04 2026
Aug 02 Aug 03 Aug 04
R1-R2 25% 25% 25%
R3 or greater 5% 5% 5%
Rationale: There remains a chance for R1-R2 (Minor-Moderate) radio
blackouts over 02-04 Aug due to the flare potential of multiple active
regions on the visible disk.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
← Return to Bulletin List