Author Topic: The Weather Station Thread (Read 40251 times)

Chris S · « **Reply #75 on:** 16 January, 2012, 12:11:39 pm »

Quote from: Wowbagger on 16 January, 2012, 11:58:02 am

At 11 a.m. our reading was 6.9°C whereas in Shoebury the official one was 6.6°C.

There is a east/southeasterly flow of Not Particularly Cold air at the moment - so you'll be picking up a lot of effect of being near the windward coast. The sea temperature is probably the same - around 7C.

As we rode east yesterday, it became noticeably milder toward the coast. Inland and near the north coast later, it got very cold, very quickly after dusk.

Wowbagger · « **Reply #76 on:** 16 January, 2012, 12:19:09 pm »

That's true: Shoebury's station is a lot closer to tidal water than we are. I think it's here. Being in the middle of the town, a good 1.5 miles from the sea front, we benefit from building-generated heat, as well as the increasingly strong sun. The dip down to the park isn's a lot - about 15 metres perhaps - but the slope starts about 100 metres to the north of our house, so cold air is very likely to start rolling down the hill around sunset.

Wowbagger · « **Reply #77 on:** 23 January, 2012, 08:59:39 am »

Dez has just loaded a software upgrade onto the computer and it now displays "wind roses".

This month's is especially telling.

http://tickfield.thewalkers.org.uk/weather/

Wowbagger · « **Reply #78 on:** 30 January, 2012, 09:09:28 am »

That's a bit annoying! I was hoping that Jan would show a mean max >10°C but yesterday pulled it down to 9.9°C! No chance of getting above 10°C today or tomorrow.

Wowbagger · « **Reply #79 on:** 01 February, 2012, 11:46:01 am »

Comparing Jan 2011 to Jan 2012:

TEMPERATURE (C), RAIN (mm), WIND SPEED (kph) DEP. HEAT COOL MEAN MEAN FROM DEG DEG MAX MAX MIN MIN YR MO MAX MIN MEAN NORM DAYS DAYS HI DATE LOW DATE >=32.2 <=0 <=0 <=-17.8 --------------------------------------------------------------------------------------------- 2011 01 7.6 3.1 5.4 -0.7 725.3 0.0 13.2 16 -0.3 30 0 0 2 0 2012 01 9.5 4.3 6.9 0.7 637.1 0.0 13.9 21 -1.2 14 0 0 4 0 PRECIPITATION (mm) DEP. MAX ---DAYS OF RAIN--- FROM OBS. OVER YR MO TOTAL NORM DAY DATE 0.254 2.54 25.4 --------------------------------------------------------- 2011 01 97.7 29.7 19.5 18 13 8 0 2012 01 38.4 -29.7 9.9 3 11 6 0 WIND SPEED (kph) DOM YR MO AVG HI DATE DIR ---------------------------------- 2011 01 5.1 38.6 8 W 2012 01 6.2 61.2 4 WSW

So Jan 2012 was much warmer, windier and drier than Jan 2011. I think it was also much sunnier, but I'm not measuring that.

Chris S · « **Reply #80 on:** 01 February, 2012, 11:53:31 am »

The long sequence of dry months continues. Apparently, there's talk of hose-pipe bans, which have become almost unheard of in East Anglia, despite being the driest part of the country.

I must say, it's depressing just how many dried up streams and rivers we cycle past, and all the fords seem to be low or empty.

Wowbagger · « **Reply #81 on:** 01 February, 2012, 02:43:03 pm »

In Southend, we were just about at our normal rainfall for 2011 - we expect 19 to 20 inches a year. However, 8 of those inches fell in January and June, whereas I think August is normally amongst our wettest months.

My brother recorded much less - about 14 inches - in Shropshire.

Wowbagger · « **Reply #82 on:** 03 February, 2012, 06:48:03 pm »

I think the siting of my weather station has made the most significant difference yet in today's results.

Maximum temperature in our garden: 4.2°C (allegedly).

Maximum in Shoebury (Met Office, 5 miles away): 1.9°C.

slowfen · « **Reply #83 on:** 11 February, 2012, 06:32:38 am »

The weather station in the garden is claiming -14 c. Which for just south of Ely is damn cold.

bobb · « **Reply #84 on:** 11 February, 2012, 08:21:14 am »

-10 in Chelmsford. What was it in Southend, Wow?

Wowbagger · « **Reply #85 on:** 12 February, 2012, 09:50:20 am »

Quote from: bobb on 11 February, 2012, 08:21:14 am

-10 in Chelmsford. What was it in Southend, Wow?

The last two nights have been -6.5°C and -5°C.

http://tickfield.thewalkers.org.uk/weather/ shows exactly what's been happening in our garden. Shoeburyness recorded -9.1°C and -8.1°C respectively.

aidan.f · « **Reply #86 on:** 21 February, 2012, 08:41:39 am »

Can anyone please point me to any wind history data for Torosay and Fort William? - would be much obliged.

JonBuoy · « **Reply #87 on:** 21 February, 2012, 12:54:51 pm »

What time period are you talking about ? Yesterday / last week / last month / etc.

Wowbagger · « **Reply #88 on:** 23 February, 2012, 05:15:29 pm »

A quick glance around the Met Office website indicates that Shoeburyness was the highest of their regularly published temperatures today, with 17.7°C. We recorded 18.8°C. I certainly don't remember a February day as warm as this.

Wowbagger · « **Reply #89 on:** 02 March, 2012, 10:57:07 am »

I've just had a look at the final figures for February and compared them to last year.

TEMPERATURE (C), RAIN (mm), WIND SPEED (kph) DEP. HEAT COOL MEAN MEAN FROM DEG DEG MAX MAX MIN MIN YR MO MAX MIN MEAN NORM DAYS DAYS HI DATE LOW DATE >=32.2 <=0 <=0 <=-17.8 --------------------------------------------------------------------------------------------- 2011 02 9.6 5.2 7.3 1.3 551.2 0.0 15.7 25 -1.3 1 0 0 1 0 2012 02 7.9 2.3 4.8 -1.2 689.8 0.0 18.8 23 -6.5 11 0 0 12 0

However, the most worrying difference is in the rainfall:

2011
PRECIPITATION (mm) DEP. MAX ---DAYS OF RAIN--- FROM OBS. OVER YR MO TOTAL NORM DAY DATE 0.254 2.54 25.4 --------------------------------------------------------- 2011 01 97.7 29.7 19.5 18 13 8 0 2011 02 41.5 13.4 12.0 19 7 4 0

2012

DEP. MAX ---DAYS OF RAIN--- FROM OBS. OVER YR MO TOTAL NORM DAY DATE 0.254 2.54 25.4 --------------------------------------------------------- 2012 01 38.4 -29.7 9.9 3 11 6 0 2012 02 14.6 -13.4 6.7 6 10 1 0

18th Jan 2011 had more rain than the whole of Feb 2012.

Edit: I suspect we may have had rather more precipitation that was measured. We measured 16cm snow and I was under the impression that snow depth: rainfall was roughly 10:1. I reckon that once the rain gauge has collected a certain amount of snow, any more just blows away and doesn't get measured. Even so, I still think February was exceptionally dry.

Chris S · « **Reply #90 on:** 02 March, 2012, 12:47:10 pm »

It is the responsibility of the Observer on shift to ensure that snow that collects in the funnel is "encouraged" into the collecting/measuring device and under no circumstances should the funnel be allowed to become clogged or filled with snow.

Now, you did do that all night, during the early Feb snowfall, didn't you Mr Wowbagger Sir?

Wowbagger · « **Reply #91 on:** 02 March, 2012, 12:48:30 pm »

No, I get someone on JSA to do it for nothing.

Edit: I'll clearly have to sack them.

Chris S · « **Reply #92 on:** 02 March, 2012, 12:55:56 pm »

ISTR there was an approved method of maintaining measuring integrity by putting a known volume of warm water into the funnel to melt the snow; then subtract that known amount from the final collected quantity thereby giving you the rain-equivalent from the snowfall.

This brings to mind images of some poor feckless Technical Assistant, pissing into a rain gauge during a blizzard. It would be a neat trick to perform on some modern AWS setups where the rain collector might be quite a few feet above the ground.

Wowbagger · « **Reply #93 on:** 02 March, 2012, 02:01:41 pm »

Ours is. It's on the gable of a one-storey extension.

Chris S · « **Reply #94 on:** 05 March, 2012, 04:34:28 pm »

So - is this the longest period of continuous rain you've measured Wow?

Been raining here in Diss since around 10am yesterday, which makes it 30 hours now (except for the couple of hours or so last night when it was snowing instead

).

So. Having rained about twice since Christmas, it can't freekin' stop now it's started...

Wowbagger · « **Reply #95 on:** 05 March, 2012, 04:38:51 pm »

No. It's stopped several times since it started yesterday afternoon. We've not even had a centimetre yet this month.

http://tickfield.thewalkers.org.uk/weather/Archive/ARC-2012-03-04.txt
http://tickfield.thewalkers.org.uk/weather/Archive/ARC-2012-03-05.txt

Chris S · « **Reply #96 on:** 05 March, 2012, 04:41:32 pm »

Quote from: Wowbagger on 05 March, 2012, 04:38:51 pm

No. It's stopped several times since it started yesterday afternoon. We've not even had a centimetre yet this month.

That's a real surprise. I'd be looking for totals of around 20-30mm from this current weather.

Wowbagger · « **Reply #97 on:** 05 March, 2012, 04:43:34 pm »

Mostly it's been very light rain. Today's effort is still short of 1mm. Yesterdays was 5.4mm I think.

Chris S · « **Reply #98 on:** 05 March, 2012, 04:50:06 pm »

Hmm... actually, my rain-detection fu must be way off, because this is just up the road from here:

http://www.southlophamweather.co.uk/

and they've only recorded 8.8mm today.

Wowbagger · « **Reply #99 on:** 17 March, 2012, 12:25:02 am »

I notice that the weather station / software predicts sunrise as 6.06 and sunset as 18,06 today 0 which is 4 days too early in my book!

THe Garmin has 6.06 and 18.04.

Author Topic: The Weather Station Thread (Read 40251 times)

Chris S

Chris S

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