Lightnews — Scholar-powered news

Nahel Belgherze @wxnb.bsky.social · 9d

Ex-Hurricane Gabrielle’s remnants have the potential to unleash catastrophic amounts of rain (+450mm locally according to the AROME model) across parts of the Valencian Community by tomorrow morning. Life-threatening flash flooding is a major concern. Please refer to official warnings.

1 10 28

Nahel Belgherze @wxnb.bsky.social · 10d

Sunset on Hurricane Humberto.

A Category 5 monster.

2 38 140

Nahel Belgherze @wxnb.bsky.social · Sep 1

This is not normal. Japan is continuing its run of astonishing temperature records. The country has just had its hottest summer for the third year in a row, and by a substantial margin. Data: JMA

38 360 1K

Nahel Belgherze @wxnb.bsky.social · Aug 26

Here’s a 48-hour water vapor loop of Ex-Hurricane Erin spinning on its final approach to Europe. Truly mesmerizing.

4 55 170

Nahel Belgherze @wxnb.bsky.social · Aug 25

Hi Christophe, I’ll keep it in mind! I didn’t have time to go any further than that in the process this time! Here is the “after” image, showing a zoomed-out view of the Iberian Peninsula for reference. Cheers.

1 2

Nahel Belgherze @wxnb.bsky.social · Aug 25

Before-and-after satellite imagery shows multiple large burn scars from the recent major wildfires in Portugal and Spain.

6 57 150

Nahel Belgherze @wxnb.bsky.social · Aug 20

Here’s a first-of-its-kind vertical cross-section analysis of the eyewall of Category 5 Hurricane Erin, captured by AgileRadar’s ROARS radar system installed on NOAA’s Hurricane Hunters P-3 aircraft.

4 43 110

Nahel Belgherze @wxnb.bsky.social · Aug 20

Hurricane Erin’s substantial wind-field expansion over the past four days.

20 60

Nahel Belgherze @wxnb.bsky.social · Aug 19

Spain is having its worst year for wildfires.

In terms of square kilometers burned, the 2025 season far outstrips all previous years.

Many fires are still active.

1 20 42

Nahel Belgherze @wxnb.bsky.social · Aug 16

Unbelievable footage from NOAA’s Hurricane Hunters inside the eye of Hurricane Erin.

Simply incredible.

63 940 2.8K

Nahel Belgherze @wxnb.bsky.social · Aug 15

Just dreadful satellite imagery of the rapidly escalating wildfire outbreak across parts of northern Portugal and western Spain.

Look at the size of that smoke plume!

7 83 150

Nahel Belgherze @wxnb.bsky.social · Aug 11

Historic heatwave unfolding in France.

Bordeaux just observed its hottest day on record with a provisional 41.6°C (107°F) — data since 1920. Red level extreme heat warnings are in force for the south of the country.

Sadly, this heatwave is far from over...

29 400 770

Nahel Belgherze @wxnb.bsky.social · Aug 10

The ongoing, potentially record-breaking heatwave in southern France could last longer than previously thought, according to the latest ECMWF ensemble.

1 6 27

Nahel Belgherze @wxnb.bsky.social · Aug 7

From record-breaking warmth to slightly below-average sea surface temperatures, this map highlights the remarkable cool-down that occurred in just one month in the western Mediterranean Sea. *Internal variability*

2 8 29

Nahel Belgherze @wxnb.bsky.social · Aug 6

This is unbelievable.

The high temperature at one of Finland’s northernmost weather stations, in the municipality of Sodankylä (Lapland region) within the Arctic Circle at latitude 67.3°N, reached at least 25°C for 26 days in a row.

Records date back to 1908.

5 78 160

Nahel Belgherze @wxnb.bsky.social · Aug 5

We just witnessed Japan's hottest day in recorded history again: 41.8°C (107.2°F).

The longevity and intensity of this historic heatwave is hard to comprehend.

4 82 150

Nahel Belgherze @wxnb.bsky.social · Aug 1

Last month was the most anomalous in recorded history for temperatures in Japan.

Almost 3°C above the 1991-2020 average.

Records date back to 1898.

14 38

Reposted by Nahel Belgherze

Mika Rantanen @mikarantane.bsky.social · Jul 31

20 straight days with 30 °C in Finland! Truly unprecedented heatwave still in full swing with maximum today about 32-33 degrees.

Even the Arctic regions (e.g. Sodankylä Tähtelä) have seen three weeks above 25 °C, and may rival tomorrow their August heat records.

Forecast 2-m temperatures today in Finland, based on the MEPS regional model.

15 320 580

Nahel Belgherze @wxnb.bsky.social · Jul 24

A weather station in Storforshei, Norway, on the edge of the Arctic Circle, has now hit 30°C (86°F) or greater for 12 consecutive days.

Let that sink in.

2 140 270

Nahel Belgherze @wxnb.bsky.social · Jul 23

I’m having trouble finding stations with long PORs in this region, unfortunately.

1

Nahel Belgherze @wxnb.bsky.social · Jul 23

Max. of 38.2°C today at Bihoro (美幌), Hokkaido with a possibility of exceeding 40°C tomorrow. We'll see.

1 10 17

Nahel Belgherze @wxnb.bsky.social · Jul 23

This particular weather station opened in 2011 right?

1 1

Nahel Belgherze @wxnb.bsky.social · Jul 21

So far in 2025, wildfires have burned more than 450 km² of land across the UK, surpassing anything seen in recent years by a wide margin.

The UK wildfire season typically peaks in spring; however, worsening drought conditions are making summer fires increasingly common.

21 53

Nahel Belgherze @wxnb.bsky.social · Jul 21

Hi Martin, do you happen to know where I can get archived daily melt area data? The page I found only has data from 2019 on. Thanks! download.dmi.dk/Research_Pro...

Index of /Research_Projects/polarportal/PP_GSMB

download.dmi.dk

1

Nahel Belgherze @wxnb.bsky.social · Jul 12

Hi Erwan, if you don’t mind me asking, could you let me know where exactly you’re retrieving the archived buoy temperature data from?

1 1