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Fire Weather - pwsFWI

Discussion of the Cumulusutils tool and website generator.

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HansR
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Re: Fire Weather - pwsFWI

Post by HansR »

meteosangonera wrote:
Tue 18 Aug 2020 5:37 pm
Today a small fire was registered in my village, in a ravine at the foot of the Carrascoy mountains.

I leave you a little video of the "ridiculous" affected area. Only 0.2Ha

https://twitter.com/112rmurcia/status/1 ... 1494284288
Thanks!! (I was already wondering how things went ;) )

I must say that apparently on the Iberian peninsula (so including Portugal) fortunately not so many fires are reported so far this year. Other years have been worse.
People have become more careful I assume and few accidents take place. The warning level is as high as ever. The same holds for France. I have not really a good view on the other countries around the Mediterranean but, following the news, I believe this year has not been as bad as some years in the past (remember the great fires in Portugal and Spain 2017/18 I believe)

This little fire shows - probably also by good fortune and good winds - there is a good fire management and competent fire brigade available.
I did see reports of larger fires in other areas in Spain but nowhere it got out of hand.

Good for you!

At the end of September, I will remove the warning under the pwsFWI table that behavioural testing is still under way.
I have a firm believe pwsFWI corresponds well with standing Fire Weather Indices and the season in Australia and now in Europe has been proving that.
https://meteo-wagenborgen.nl / Cumulus 3.6.8 (build: 3084)
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HansR
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Re: Fire Weather - pwsFWI

Post by HansR »

In the turmoil of the disastrous fires in California (See here and here) we are reminded of what lack of rain can do. After Australia last summer a more or less similar situation is there. And lightning seems to be the cause.

And in Europe there is also drought but fortunately no disastrous fires.

Nevertheless the fires are creeping northbound: in spring there was a very dry period and in the Netherlands we had two large (500 ha) fires. Stéphane recently gave me an article about a fire (in French) of several dozen of hectares 80 kilometers south of him in an area that lost about 1,800 acres to the fire in 2000. Far from his weather station but still indicative of his yellow hazard level (first of august!).

Note that after such fires, an area is relatively safe because it has run out of fuel. The forest has to grow for several years before the danger returns.
https://meteo-wagenborgen.nl / Cumulus 3.6.8 (build: 3084)
Davis Vantage Pro 2+ / Raspberry Pi 3 Model B Plus Rev 1.3
Raspbian Buster / 5.4.51-v7+ armv7l (before: 4.19.118)
Mono JIT compiler version 6.10.0.104 (before: 6.8.0.123)

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HansR
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Re: Fire Weather - pwsFWI

Post by HansR »

As promised at the release of utils v4.2.3:
I will be preparing a short blog with some additional arguments for the pwsFWI type of fire indices and the practical use in current professional fire fighting software. Not that I think you can fight fire with software, but it shows the use of fire modelling and has the argument of awareness. Also in this context, look at the new SpotWX Forecast system (and its linked tables) which is now default for CumulusUtils.
So I wrote the blog.
https://meteo-wagenborgen.nl / Cumulus 3.6.8 (build: 3084)
Davis Vantage Pro 2+ / Raspberry Pi 3 Model B Plus Rev 1.3
Raspbian Buster / 5.4.51-v7+ armv7l (before: 4.19.118)
Mono JIT compiler version 6.10.0.104 (before: 6.8.0.123)

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Re: Fire Weather - pwsFWI

Post by HansR »

With the start of the meteorological autumn (Norther Hemisphere, down under it'll be spring) it is interesting to note:
  1. The hottest and driest station with pwsFWI seems to be meteosangonera and over there the season is going to its end with values now back in the blue and yellow danger zones after having been in the red zone for almost two months. Fortunately only two small fires were reported in that area. People seem to be very conscious about fire over there. Lack of tourists may have had influence as well.
  2. A second station in Spain carrying pwsFWI is only a small 200 km south-east of San Sebastian and apparently out of reach of the Pyrenees. It shows similar fire danger characteristics as meteosangonera. Unfortunately there is no other info and no contact with that station but Google Earth shows the area is a fertile open plain of agricultural lands and lack of forest. So cropfires may happen but large wildfire is far away. Interesting though is again the influence of the Pyrenees and the very big weather type difference with San Sebastian which is so close.
  3. The pwsFWI stations in Eastern Australia are beginning to show signs of heating up again which is quite early in the season. The first of August there was already an article stating: Bush fire season starts ALREADY in New South Wales. Let's hope it doesn't get as bad as last year.
https://meteo-wagenborgen.nl / Cumulus 3.6.8 (build: 3084)
Davis Vantage Pro 2+ / Raspberry Pi 3 Model B Plus Rev 1.3
Raspbian Buster / 5.4.51-v7+ armv7l (before: 4.19.118)
Mono JIT compiler version 6.10.0.104 (before: 6.8.0.123)

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