:Product: 3-Day Forecast
:Issued: 2026 Jun 13 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jun 13-Jun 15 2026 is 5.67 (NOAA Scale
G2).

NOAA Kp index breakdown Jun 13-Jun 15 2026

Jun 13 Jun 14 Jun 15
00-03UT 3.33 4.67 (G1) 3.00
03-06UT 4.67 (G1) 4.00 2.33
06-09UT 5.67 (G2) 3.33 3.67
09-12UT 3.00 3.33 2.67
12-15UT 4.67 (G1) 2.67 2.67
15-18UT 5.00 (G1) 2.67 2.00
18-21UT 4.33 3.67 2.33
21-00UT 4.33 4.00 2.33

Rationale: Geomagnetic field conditions are likely to reach G2
(Moderate) geomagnetic storm levels on 13 Jun due to the persistence of
the high-speed stream combined with the anticipated arrival of CMEs that
left the Sun over 09 Jun and 11 Jun. Conditions are expected to decrease
on 14 Jun, with isolated G1 (Minor) storming periods still likely, as
CME influences wane.

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 13-Jun 15 2026

Jun 13 Jun 14 Jun 15
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 Jun 13-Jun 15 2026

Jun 13 Jun 14 Jun 15
R1-R2 35% 35% 35%
R3 or greater 5% 5% 5%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts
on 13-15 Jun, primarily due to the potential of Regions 4464 and 4465.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)

:Product: 3-Day Forecast
:Issued: 2026 Jun 16 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
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 16-Jun 18 2026 is 4.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Jun 16-Jun 18 2026

Jun 16 Jun 17 Jun 18
00-03UT 2.67 3.00 3.33
03-06UT 3.67 2.00 3.00
06-09UT 3.67 2.00 2.33
09-12UT 2.67 1.67 2.00
12-15UT 1.67 1.33 1.67
15-18UT 1.67 2.67 1.33
18-21UT 1.67 4.00 1.33
21-00UT 2.00 3.00 2.67

Rationale: No G1 (Minor) or greater geomagnetic storms are expected
through 18 Jun.

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 16-Jun 18 2026

Jun 16 Jun 17 Jun 18
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected. through 18 Jun.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Jun 16-Jun 18 2026

Jun 16 Jun 17 Jun 18
R1-R2 20% 20% 20%
R3 or greater 1% 1% 1%

Rationale: There is a slight chance for R1-R2 (Minor-Moderate) radio
blackouts through 18 Jun.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)

:Product: 3-Day Forecast
:Issued: 2026 Jun 19 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
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 19-Jun 21 2026 is 4.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Jun 19-Jun 21 2026

Jun 19 Jun 20 Jun 21
00-03UT 3.00 3.00 2.67
03-06UT 4.00 3.67 2.00
06-09UT 3.67 2.67 2.33
09-12UT 3.00 2.33 2.33
12-15UT 3.00 2.00 2.33
15-18UT 2.00 2.00 2.33
18-21UT 1.67 2.33 2.33
21-00UT 3.00 3.00 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 Jun 19-Jun 21 2026

Jun 19 Jun 20 Jun 21
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 19-Jun 21 2026

Jun 19 Jun 20 Jun 21
R1-R2 15% 15% 15%
R3 or greater 1% 1% 1%

Rationale: There is a slight chance for R1 (Minor) radio blackouts on
19-21 Jun.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)

:Product: 3-Day Forecast
:Issued: 2026 Jun 22 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
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 22-Jun 24 2026 is 3.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Jun 22-Jun 24 2026

Jun 22 Jun 23 Jun 24
00-03UT 1.67 1.67 1.67
03-06UT 2.00 2.00 2.33
06-09UT 2.00 1.67 1.67
09-12UT 1.67 1.33 1.67
12-15UT 1.00 1.33 2.67
15-18UT 1.00 0.67 2.67
18-21UT 0.67 1.00 3.67
21-00UT 1.67 1.67 3.67

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 Jun 22-Jun 24 2026

Jun 22 Jun 23 Jun 24
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

Radio blackouts reaching the R2 levels were observed over the past 24
hours. The largest was at Jun 21 2026 1929 UTC.

Radio Blackout Forecast for Jun 22-Jun 24 2026

Jun 22 Jun 23 Jun 24
R1-R2 40% 40% 40%
R3 or greater 5% 5% 5%

Rationale: There is an increasing chance for R1-R2 (Minor-Moderate)
radio blackouts on 22-24 Jun, due primarily to the flare potential of
Region 4473.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)

:Product: 3-Day Forecast
:Issued: 2026 Jun 25 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jun 25-Jun 27 2026 is 4.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Jun 25-Jun 27 2026

Jun 25 Jun 26 Jun 27
00-03UT 3.67 3.33 3.00
03-06UT 4.00 3.67 3.67
06-09UT 2.67 2.00 2.00
09-12UT 2.67 1.67 2.67
12-15UT 1.67 3.00 2.00
15-18UT 1.67 3.67 2.00
18-21UT 2.67 3.33 2.67
21-00UT 3.67 3.00 3.00

Rationale: No G1 (Minor) or greater geomagnetic storms are expected.
Periods of active conditions are likely 25-27 Jun in response to -CH HSS influences.

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 25-Jun 27 2026

Jun 25 Jun 26 Jun 27
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 Jun 25-Jun 27 2026

Jun 25 Jun 26 Jun 27
R1-R2 50% 50% 50%
R3 or greater 10% 10% 10%

Rationale: There is a high chance for R1-R2 (Minor-Moderate) radio
blackouts 54-27 Jun due primarily to the flare potential of Region 4478.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)

:Product: 3-Day Forecast
:Issued: 2026 Jul 16 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jul 16-Jul 18 2026 is 3.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Jul 16-Jul 18 2026

Jul 16 Jul 17 Jul 18
00-03UT 3.00 2.67 1.67
03-06UT 2.33 2.33 1.33
06-09UT 2.00 2.00 1.33
09-12UT 2.33 1.33 1.33
12-15UT 1.33 1.33 1.33
15-18UT 2.00 1.67 1.33
18-21UT 2.00 2.00 1.67
21-00UT 2.00 2.33 1.67

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 16-Jul 18 2026

Jul 16 Jul 17 Jul 18
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 Jul 16-Jul 18 2026

Jul 16 Jul 17 Jul 18
R1-R2 10% 10% 10%
R3 or greater 1% 1% 1%

Rationale: A slight chance for R1-2 (Minor-Moderate) radio blackouts
will persist through 18 Jul primarily due to returning regions on the
Eastern limb.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)

:Product: 3-Day Forecast
:Issued: 2026 Jul 19 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
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 Jul 19-Jul 21 2026 is 2.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Jul 19-Jul 21 2026

Jul 19 Jul 20 Jul 21
00-03UT 1.67 1.33 1.33
03-06UT 2.00 2.00 2.00
06-09UT 1.67 2.00 2.00
09-12UT 1.33 1.33 1.33
12-15UT 0.67 1.67 1.33
15-18UT 0.67 0.67 0.67
18-21UT 1.67 0.67 0.67
21-00UT 1.67 1.33 1.67

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 19-Jul 21 2026

Jul 19 Jul 20 Jul 21
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 Jul 19-Jul 21 2026

Jul 19 Jul 20 Jul 21
R1-R2 15% 15% 15%
R3 or greater 1% 1% 1%

Rationale: There remains a slight chance for R1-R2 (Minor-Moderate)
radio blackouts over 19-21 Jul.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)

:Product: 3-Day Forecast
:Issued: 2026 Jul 22 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jul 22-Jul 24 2026 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown Jul 22-Jul 24 2026

Jul 22 Jul 23 Jul 24
00-03UT 3.67 4.00 3.67
03-06UT 5.00 (G1) 3.00 3.00
06-09UT 4.67 (G1) 2.67 2.67
09-12UT 4.00 2.00 2.67
12-15UT 3.33 2.00 2.00
15-18UT 3.00 2.67 2.00
18-21UT 3.00 3.33 2.33
21-00UT 3.67 3.67 2.67

Rationale: G1 (Minor) geomagnetic storms are likely on 22 Jul due to
negative polarity coronal hole high speed stream effects.

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 22-Jul 24 2026

Jul 22 Jul 23 Jul 24
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

Radio blackouts reaching the R1 levels were observed over the past 24
hours. The largest was at Jul 21 2026 1727 UTC.

Radio Blackout Forecast for Jul 22-Jul 24 2026

Jul 22 Jul 23 Jul 24
R1-R2 55% 55% 55%
R3 or greater 10% 10% 10%

Rationale: Solar activity is expected to be low with further M-class
flares (R1-R2/Minor-Moderate) likely on 22-24 Jul primarily due to the
flare potential of AR 4493.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)

:Product: 3-Day Forecast
:Issued: 2026 Jul 25 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jul 25-Jul 27 2026 is 3.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Jul 25-Jul 27 2026

Jul 25 Jul 26 Jul 27
00-03UT 1.67 2.00 3.00
03-06UT 1.33 1.67 3.00
06-09UT 1.33 1.33 3.00
09-12UT 1.33 1.00 3.33
12-15UT 1.33 1.33 3.00
15-18UT 1.33 1.33 3.67
18-21UT 1.67 1.33 3.67
21-00UT 1.67 1.67 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 Jul 25-Jul 27 2026

Jul 25 Jul 26 Jul 27
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 25-Jul 27 2026

Jul 25 Jul 26 Jul 27
R1-R2 35% 35% 35%
R3 or greater 5% 5% 5%

Rationale: Solar activity is expected to be at low levels with a high
chance for M-class flares (35%) on 25-27 July due to the flare potential
of Regions 4493 and 4494.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)

:Product: 3-Day Forecast
:Issued: 2026 Jul 31 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
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 Jul 31-Aug 02 2026 is 4.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Jul 31-Aug 02 2026

Jul 31 Aug 01 Aug 02
00-03UT 0.67 3.00 1.67
03-06UT 1.00 2.33 1.33
06-09UT 1.67 2.00 1.33
09-12UT 1.67 1.33 1.33
12-15UT 1.67 4.00 1.33
15-18UT 2.33 3.67 1.33
18-21UT 2.67 3.00 1.67
21-00UT 3.67 2.67 1.67

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
above S-scale storm level thresholds.

Solar Radiation Storm Forecast for Jul 31-Aug 02 2026

Jul 31 Aug 01 Aug 02
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

Radio blackouts reaching the R1 levels were observed over the past 24
hours. The largest was at Jul 30 2026 1700 UTC.

Radio Blackout Forecast for Jul 31-Aug 02 2026

Jul 31 Aug 01 Aug 02
R1-R2 25% 25% 25%
R3 or greater 1% 1% 1%

Rationale: Solar activity is expected to be low with a chance for
M-class flares (R1-R2, Minor-Moderate) through 02 Aug.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)