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Lokaal brand risico
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Space Weather Observations, Alerts, and Forecast

Forecast text

:Product: 3-Day Forecast
:Issued: 2017 Jul 27 0031 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 27-Jul 29 2017 is 3 (below NOAA
Scale levels).

NOAA Kp index breakdown Jul 27-Jul 29 2017

            Jul 27     Jul 28     Jul 29
00-03UT        1          3          2     
03-06UT        3          2          2     
06-09UT        2          2          1     
09-12UT        2          2          1     
12-15UT        2          2          1     
15-18UT        2          2          1     
18-21UT        2          2          1     
21-00UT        2          2          2     

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 Jul 27-Jul 29 2017

              Jul 27  Jul 28  Jul 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 Jul 27-Jul 29 2017

              Jul 27        Jul 28        Jul 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.

Real Time Images of the Sun

Click for time-lapse image of the sun
SOHO EIT 284 image of the sun
Mauna Loa Solar Image
Latest Mauna Loa image of the Sun

The sun is constantly monitored for sun spots and coronal mass ejections. 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.

Real Time Cycles

Sun Spot Number Progression
Graph showing Sun Spot Number Progression
This plot shows the Solar Cycle Sun Spot Number Progression.
Real-Time Solar Wind
Graph showing Real-Time Solar Wind
Real-Time Solar Wind data broadcast from NASA's ACE satellite.

The Solar Cycle is observed by counting the frequency and placement of sunspots visible on the Sun. Solar minimum occurred in December, 2008. Solar maximum is expected to occur in May, 2013.

Solar X-ray Flux
Graph showing Real-Time Solar X-ray Flux
This plot shows 3-days of 5-minute solar x-ray flux values measured on the SWPC primary and secondary GOES satellites.
Satellite Environment Plot
Graph showing Real-Time Satellite Environment Plot
The Satellite Environment Plot combines satellite and ground-based data to provide an overview of the current geosynchronous satellite environment.

Auroral Activity

Northern Hemi Auroral Map
Current Northern hemispheric power input map
Southern Hemi Auroral Map
Current Southern hemispheric power input 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.

Space Weather Alerts


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).
Powered by Space Weather PHP script by Mike Challis

U vindt ons ook hier:

Het Weer Actueel

European Weather Network


Weather Underground

Citizen Weather Observer Program (CWOP)

HAMweather, WeatherForYou, PWS Weather


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Apparatuur in gebruik:

Davis Vantage Pro2 Wireless & UV


Boltek LD-250


Shuttle D6100XA

Asus Eee Box B202

Davis Vantage Pro2 Wireless & UV


Boltek LD-250


Shuttle D6100XA

Asus Eee Box B202