Halo and Circumzenithal Arc

This evening at sunset, the sun with a halo, both Sun dogs and a faint circumzenithal arc. I used my Iphone 16 to capture the Sun.

Local Heat Wave number 4 this year

 

The next heat wave did start last week; So far, this is the fourth heat wave this year.

My picture of Noctilucent Clouds published in Heelal

 

My picture of noctilucent clouds is published in national magazine of astronomy "Heelal"

Heat waves 2025 and 2026 (so far)

A heat wave is an extended period of anomalously high atmospheric temperatures driven by synoptic-scale anticyclones, where sinking air warms adiabatically and suppresses cloud formation. This allows uninterrupted solar radiation to directly heat the Earth's surface, creating a thermal feedback loop amplified by dry, low-specific-heat sandy soils like those in Averbode. In Belgium, the official threshold requires at least five consecutive days reaching 25 Celsius or higher, with at least three of those days exceeding 30 degrees Celsius. The localized environmental and thermodynamic impacts of these specific atmospheric events in Averbode are outlined below with a comparison of the official data of KMI Uccle.

For Averbode we have more heat waves then official registrated by KMI in Uccle. Also the lenght of the heat waves are longer. 

Data is measured using weather station:  Levenhuk - WU ISCHER75 or EcoWitt EasyWeatherPro-16ACFC

Noctilucent Clouds June 29

Finally, I could capture noctilucent clouds. The last time I could observe them was back in 2024.

Noctilucent Clouds (NLC) June 28

Some NLC "behind" low clouds.

Supernumerary and double rainbows and a drone image of rainbow

Last week I could capture some special rainbows: double rainbows and supernumerary rainbows.

I took aswell a picture using my DJIO Neo2 drone.... really promising. 

Very rare 9° Halo

On June 11, 2026 I could capture a very rare halo. Beside the 22° Halo, there was aswell a 9° halo. I send my picture to Beglium Weather group  which confirmed the 9° halo. The 9° halo finds it's origin in pyramid chrystals. See aswell this website : https://www.meteoros.de/themen/halos/haloarten/ee31

VVW Halo and Publication

Since end 2025 I'm a member of the whatsApp groep VVW Halo. The associated WhatsApp group is a private community for members of the Weather association VVW. It is used for real-time weather observations, such as reporting storms, lightning, or optical phenomena like halos and rainbows. The reportings are analysed and published in their monthly magazine Halo.

The first quarter results are published last month including my observations and pictures. Looking at the graphs, a halo could be seen in the mentioned period average every 3 days.

Halo 360°

Capturing a very bright 360° Halo around the Sun.

Red Rainbow 4734 likes on Facebook

 

A total of 4734 likes of my red rainbow. Beside this, 244 remarks and 52 times shared with others. Never thought a rainbow would be some much liked.

Halo from airplane

When preparing for landing in Iceland, I was able to make some pictures of a halo with our plane.

 

Rainbow @Skogafoss

Beautifull waterfall Skogafoss (Iceland) with a nice rainbow.

Rainbow above volcano crater

> When walking around Volcano Crater @Selfoss Iceland a supernumerary rainbow showed up creating a nice view and picture.
>

Apocalyptic Red Rainbow at Sunset

I could image a rainbow, only 9 minutes before sunset. The rainbow was quit red with aswell a red cloudy background. Very apocalyptic...

Supernumerary Rainbow

This evening a double rainbow which was also a supernumrary one.

Image taken @Averbode - Belgium 

Sunset

Sunset at the Northsea in De Haan

Halo, Sundogs, Circles and Arcs

The Sun this afternoon with a halo22°, two sundogs, parhelic circle, upper tangent and a circumzenithal arc.

Editing using CS4

Sun Halo

 

Sun this afternoon with a faint Sun Dog, Circumzenithal arc and Sun Pillar.

New Weatherstation Levenhuk PRO LP500

I replaced my Oregon WMR200 and BAR928 with a new weatherstation Levenhuk Pro LP500. Both Oregon stations are >10 years old and the sensors did not work anymore. My preference for Levenhuk Pro LP500 was based on following criteria:

• Measuring in/outdoor temperature, humidity, rain, winddirection, windspeed and pressure
• Data capturing of all data in order to do analysis
• Samrtphone connection 

The Pro LP500 forfills all criteria and has following extra's:

• moon phases
• sunrise, sunset and sunpath
• UV index
• Solar radiation (Lux/W/m2)
• automatic time
• link to Ecowitt and WUnderground and thus linked to smartphone
• datacapturing via microSD or direct PC connection
• weather forecast

Using PWS Monitor app, you can find my weatherstation with ID = ISCHER75