3-Day Forecast

Issued: 2017 Mar 27 1230 UTC
Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center and processed by SpaceWeatherLive.com

A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 6 (NOAA scale G2).

The greatest expected 3 hr Kp for Mar 27-Mar 29 2017 is 6 (NOAA scale G2).

NOAA Kp index breakdown

            Mar 27     Mar 28     Mar 29
00-03UT        2          5 (G1)     6 (G2)
03-06UT        5 (G1)     6 (G2)     6 (G2)
06-09UT        5 (G1)     5 (G1)     5 (G1)
09-12UT        6 (G2)     4          4     
12-15UT        6 (G2)     4          4     
15-18UT        4          4          3     
18-21UT        4          5 (G1)     3     
21-00UT        5 (G1)     6 (G2)     4     

Rationale
G2 (Moderate) levels are expected on day one and likely to continue into days two and three (28-29 Mar) due to coronal hole high speed stream activity.

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 Mar 27-Mar 29 2017

              Mar 27  Mar 28  Mar 29
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 Mar 27-Mar 29 2017

              Mar 27        Mar 28        Mar 29
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.
Current data suggest that it is not possible to see aurora now at middle latitudes
G2 - Moderate geomagnetic storm
Observed Kp: 6-
The solar wind speed is currently moderately high (639.4 km/sec.)
The direction of the interplanetary magnetic field is slightly South (-7.34nT).
The maximum X-ray flux of the past two hours is:
C5.18

Latest news

Today's space weather

Auroral activity Minor Severe
High latitude 20% 30%
Middle latitude 25% 10%
Predicted Kp max 5
Solar activity
M-class solar flare 1%
X-class solar flare 1%
C1.6
Moon phase
New Moon

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