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Space Weather Observations, Alerts, and Forecast

Forecast text

Product: 3-Day Forecast - Issued: 2024 Mar 19 0030 UTC
Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center.

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 Mar 19-Mar 21 2024 is 4.67 (NOAA Scale G1).

NOAA Kp index breakdown Mar 19-Mar 21 2024

Mar 19Mar 20Mar 21
00-03UT3.331.673.00
03-06UT2.672.004.00
06-09UT2.001.674.67 (G1)
09-12UT1.673.003.00
12-15UT0.673.674.00
15-18UT0.673.673.00
18-21UT1.674.003.00
21-00UT1.674.67 (G1)2.00

Rationale: G1 (Minor) storm levels are likely on 20-21 Mar due to the arrival of CMEs from 17 Mar.

Solar Radiation Activity Observation

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 Mar 19-Mar 21 2024

Mar 19Mar 20Mar 21
S1 or greater5%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.

Radio Blackout Activity

Radio blackouts reaching the R2 levels were observed over the past 24 hours. The largest was at Mar 18 2024 1919 UTC.

Radio Blackout Forecast for Mar 19-Mar 21 2024

Mar 19Mar 20Mar 21
R1-R240%40%40%
R3 or greater5%5%5%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts on 19-21 Mar.

Sun Images


eit 171 eit 195 eit 284 eit 304
 

Images: From left to right: EIT 171, EIT 195, EIT 284, EIT 304 EIT (Extreme ultraviolet Imaging Telescope) images the solar atmosphere at several wavelengths, and therefore, shows solar material at different temperatures. In the images taken at 304 Angstrom the bright material is at 60,000 to 80,000 degrees Kelvin. In those taken at 171 Angstrom, at 1 million degrees. 195 Angstrom images correspond to about 1.5 million Kelvin, 284 Angstrom to 2 million degrees. The hotter the temperature, the higher you look in the solar atmosphere.

 
SDO/HMI
Continuum
SDO/HMI
Magnetogram
LASCO C2 LASCO C3
 

The MDI (Michelson Doppler Imager) images shown here are taken in the continuum near the Ni I 6768 Angstrom line. The most prominent features are the sun spots.
 

LASCO (Large Angle Spectrometric Coronagraph) is able to take images of the solar corona by blocking the light coming directly from the Sun with an occulter disk, creating an artificial eclipse within the instrument itself.

 for more information

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Auroral activity


Northern Auroral map Southern Auroral map
 

Instruments on board the NOAA Polar-orbiting Operational Environmental Satellite (POES) continually monitor the power flux carried by the protons and electrons that produce aurora in the atmosphere. SWPC has developed a technique that uses the power flux observations obtained during a single pass of the satellite over a polar region (which takes about 25 minutes) to estimate the total power deposited in an entire polar region by these auroral particles. The power input estimate is converted to an auroral activity index that ranges from 1 to 10.

Introduction Movie


Conditions on the Sun and in the solar wind, magnetosphere, ionosphere and thermosphere that can influence the performance and reliability of space-borne and ground-based technological systems and can endanger human life or health. This introduction movie in the English language will open on a new tab/window when you click on the image below.



Also in Quicktime format: Large (269M) and Small ( 60M).


Credits:

Space Weather Images and Information (excluded from copyright) courtesy of:
NOAA / NWS Space Weather Prediction Center, Mauna Loa Solar Observatory (HAO/NCAR), and SOHO (ESA & NASA).

Βλέπε επίσης τις ενημερώσεις τού σταθμού μας στα παρακάτω δίκτυα:

European Weather Network

Weather Underground

AWEKAS

Citizen Weather Observer Program (CWOP)

UK Metoffice

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