UK Storm and other bits

Today's storm has been interesting so far, but not for the reasons I was expecting. For one thing, so far, at my location, it hasn't been quite so bad as I thought it might be. We've had worse winds recently (especially the storm a couple of days after the Lincolnshire earthquake) and, so far, it's nowhere near as bad as the January 2007 storm. The main reason why it's interesting is how low the pressure is at the moment.

As my weather station got up and running I noticed that, on and off, I'd get pressure spikes and dips – these would last for one reading, rarely two, and would throw out my graphs and stats. Because of this I added a little bit of "filtering" for the graphs and other things so they'd ignore values that seemed too hight or too low.

For no specific reason I'd set the low point of the filter to 970 hPa. When I got up this morning the pressure reading was already below that and still falling. Because of this I had to make changes to the code that creates my graphs, and also to the code that adds the data to my SQL database, so that the low point is 960 hPa. The pressure is still falling and I suspect I might need to change this again so that the low point is 950 hPa (this would result in a range of 950 hPa to 1050 hPa, which would actually fit rather well with the usual range mentioned on this Met Office page).

Edit: (2008-03-10 13:00 UT) Sure enough, I've just had to modify the minimum pressure filtering again to take it down to 950 hPa because the pressure has just fallen below 960 hPa.

In other recent news (I've not really written much on this blog recently, sorry about that) I've had a couple more base station crashes. The first was on 2008-02-28 and I lost about ½ an hour's worth of data. The second was on 2008-03-08. This is the first time in quite a long time that I've had two crashes so close to each other.

Pictures from today's storm

As promised earlier, here are some images of the damage caused by today's storm:

Today's storm

It's very stormy today, probably the worst I've seen in a long time, easily the worst I've seen since I started running the weather station.

We've lost power three times so far today. The first couple of times were enough for the UPS to handle but the third loss looked like it was going to be a long one so I shut the machines down (hence a a hole in the data today).

The wind during the power loss was quite scary — I'm having trouble recalling when I last saw wind like that. We appear to have lost a couple of tiles off the roof and we've also lost a garden fence. After things calmed down, but before the power came back on, I took a walk around the village to see what other damage there was and was surprised to find there was remarkably little. I saw a couple of collapsed garden sheds, a couple of collapsed fences (one of which was impaled on a tree) and a lot of debris lying around. I only saw one damaged tree (part of this Willow had collapsed).

I took my cameras with me and took some pictures. Given that I can't rely on the power at the moment (it's still blowing a gale out there and it is forecast to get worse again before it gets better) I won't be downloading them until much later.

As usual I'm not recording wind speeds anywhere near like they really are due to the design and location of the anemometer. A personal station just down the road from me is showing far more accurate speeds (showing a maximum gust of 57mph as of the time of writing).

As much as I find it all interesting, I'll be happy when it's over.

Update: Here's an image of some damage that I took on my mobile phone (like I said above, I'll grab the images off the actual cameras when everything has calmed down):