Solar Region Summary

:Product: Solar Region Summary :Issued: 2016 Dec 30 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 365 Issued at 0030Z on 30 Dec 2016 Report compiled from data received at SWO on 29 Dec I. Regions with Sunspots. Locations Valid at 29/2400Z Nmbr Location Lo Area Z LL NN Mag Type None IA. H-alpha Plages without Spots. Locations Valid at 29/2400Z Dec Nmbr Location Lo 2621 N10W88 238 II. Regions Due to Return 30 Dec to 01 Jan Nmbr Lat Lo None

Geophysical Alert

:Product: Geophysical Alert Message wwv.txt :Issued: 2016 Dec 30 0605 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # # Geophysical Alert Message # Solar-terrestrial indices for 29 December follow. Solar flux 73 and estimated planetary A-index 5. The estimated planetary K-index at 0600 UTC on 30 December was 2.
No space weather storms were observed for the past 24 hours.
No space weather storms are predicted for the next 24 hours.

3 Day Geomagnetic Forecast

:Product: 3-Day Forecast :Issued: 2016 Dec 29 1230 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 Dec 29-Dec 31 2016 is 5 (NOAA Scale G1).
NOAA Kp index breakdown Dec 29-Dec 31 2016
Dec 29 Dec 30 Dec 31 00-03UT 2 2 3 03-06UT 1 2 4 06-09UT 1 1 5 (G1) 09-12UT 1 1 4 12-15UT 1 2 4 15-18UT 1 3 3 18-21UT 2 4 4 21-00UT 1 4 4
Rationale: Isolated G1 (Minor) storm conditions are likely on day three (31 Dec) due to ongoing CH HSS effects.
B. NOAA Solar Radiation Activity Observation and Forecast
Solar radiation, as observed by NOAA GOES-13 over the past 24 hours, was below S-scale storm level thresholds.
Solar Radiation Storm Forecast for Dec 29-Dec 31 2016
Dec 29 Dec 30 Dec 31 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 Dec 29-Dec 31 2016
Dec 29 Dec 30 Dec 31 R1-R2 1% 1% 1% R3 or greater 1% 1% 1%
Rationale: No R1 (Minor) or greater radio blackouts are expected. No significant active region flare activity is forecast.

Solar Region Summary

:Product: Solar Region Summary :Issued: 2016 Dec 29 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 364 Issued at 0030Z on 29 Dec 2016 Report compiled from data received at SWO on 28 Dec I. Regions with Sunspots. Locations Valid at 28/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2621 N10W74 237 0010 Bxo 04 04 Beta IA. H-alpha Plages without Spots. Locations Valid at 28/2400Z Dec Nmbr Location Lo None II. Regions Due to Return 29 Dec to 31 Dec Nmbr Lat Lo None

Geophysical Alert

:Product: Geophysical Alert Message wwv.txt :Issued: 2016 Dec 29 1810 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # # Geophysical Alert Message # Solar-terrestrial indices for 28 December follow. Solar flux 73 and estimated planetary A-index 6. The estimated planetary K-index at 1800 UTC on 29 December was 2.
No space weather storms were observed for the past 24 hours.
No space weather storms are predicted for the next 24 hours.

3 Day Geomagnetic Forecast

:Product: 3-Day Forecast :Issued: 2016 Dec 29 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 Dec 29-Dec 31 2016 is 5 (NOAA Scale G1).
NOAA Kp index breakdown Dec 29-Dec 31 2016
Dec 29 Dec 30 Dec 31 00-03UT 2 2 3 03-06UT 2 2 4 06-09UT 1 1 5 (G1) 09-12UT 1 1 4 12-15UT 1 2 4 15-18UT 1 3 3 18-21UT 2 4 4 21-00UT 1 4 4
Rationale: G1 (Minor) geomagnetic storms are likely on day three (31 Dec) due to CH HSS influences.
B. NOAA Solar Radiation Activity Observation and Forecast
Solar radiation, as observed by NOAA GOES-13 over the past 24 hours, was below S-scale storm level thresholds.
Solar Radiation Storm Forecast for Dec 29-Dec 31 2016
Dec 29 Dec 30 Dec 31 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 Dec 29-Dec 31 2016
Dec 29 Dec 30 Dec 31 R1-R2 1% 1% 1% R3 or greater 1% 1% 1%
Rationale: No R1 (Minor) or greater radio blackouts are expected. No significant active region flare activity is forecast.

Geophysical Alert

:Product: Geophysical Alert Message wwv.txt :Issued: 2016 Dec 29 0605 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # # Geophysical Alert Message # Solar-terrestrial indices for 28 December follow. Solar flux 73 and estimated planetary A-index 6. The estimated planetary K-index at 0600 UTC on 29 December was 1.
No space weather storms were observed for the past 24 hours.
No space weather storms are predicted for the next 24 hours.

Solar Region Summary

:Product: Solar Region Summary :Issued: 2016 Dec 29 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 364 Issued at 0030Z on 29 Dec 2016 Report compiled from data received at SWO on 28 Dec I. Regions with Sunspots. Locations Valid at 28/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2621 N10W74 237 0010 Bxo 04 04 Beta IA. H-alpha Plages without Spots. Locations Valid at 28/2400Z Dec Nmbr Location Lo None II. Regions Due to Return 29 Dec to 31 Dec Nmbr Lat Lo None

3 Day Geomagnetic Forecast

:Product: 3-Day Forecast :Issued: 2016 Dec 28 1230 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 Dec 28-Dec 30 2016 is 4 (below NOAA Scale levels).
NOAA Kp index breakdown Dec 28-Dec 30 2016
Dec 28 Dec 29 Dec 30 00-03UT 2 2 2 03-06UT 3 2 2 06-09UT 1 1 1 09-12UT 1 1 1 12-15UT 1 1 2 15-18UT 1 1 3 18-21UT 2 2 4 21-00UT 1 1 4
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-13 over the past 24 hours, was below S-scale storm level thresholds.
Solar Radiation Storm Forecast for Dec 28-Dec 30 2016
Dec 28 Dec 29 Dec 30 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 Dec 28-Dec 30 2016
Dec 28 Dec 29 Dec 30 R1-R2 1% 1% 1% R3 or greater 1% 1% 1%
Rationale: No R1 (Minor) or greater radio blackouts are expected. No significant active region flare activity is forecast.

Solar Region Summary

:Product: Solar Region Summary :Issued: 2016 Dec 28 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 363 Issued at 0030Z on 28 Dec 2016 Report compiled from data received at SWO on 27 Dec I. Regions with Sunspots. Locations Valid at 27/2400Z Nmbr Location Lo Area Z LL NN Mag Type 2621 N10W61 237 0030 Cro 07 04 Beta IA. H-alpha Plages without Spots. Locations Valid at 27/2400Z Dec Nmbr Location Lo None II. Regions Due to Return 28 Dec to 30 Dec Nmbr Lat Lo None