Wednesday, 7 December 2011

WEDNESDAY 7th DECEMBER

THIS MORNING'S READINGS
The only online weather service using data recorded in Pitlochry. The data presented below comes from standard Met Office equipment. However, I also make use of an Automatic Weather Station.
Temperature at obs. time today 09001.8
Maximum temperature (last 24hrs)2.0
Minimum temperature (last 24hrs)-1.4
Grass minimum temperature (last 24hrs)-7.5
Rainfall total (last 24hrs)             SNOW DEPTH 9.5cms10.9mms
Barometer at observation time today991mbs
Wind at observation time todayWNW3
This month’s highest temperature to date*
This month’s lowest temperature to date*
This month’s highest 24hr rainfall total to date*
THIS MONTH'S TOTAL RAINFALL TO DATE30.3mms

AVERAGES & EXTREMES DECEMBER
Avg. max. temperature5.7Long term avg. rainfall91
Avg min. temperature-0.3Wettest month193
Record high temperature14.4Driest month24
Record low temperature-18.2

For longer outlook periods,surface pressure charts, mountain weather & severe weather warnings, go to the Met Office's regional forecasts and click the relevant headings.

HEADLINES @ 0900Hrs
Rather more snow than expected!  The weather charts look particularly "busy" for the next couple od days, as deep depressions move in from the Atlantic, bringing not only gales, but rapid fluctuations between mild & cold, rain & snow.We are likely to see the back of some of this snowfall in tomorrow morning's expected rain, but colder NW winds with more snow showers will return.  Taking observations each morning can take as little as 7 or 8 minutes, but on mornings like this--more like 30mins (clearing snow, melting snow in the rain gauge funnel, giving a correct figure for average snow depth, uncovering the ground thermometer etc.etc.

PITLOCHRY TODAY
A partly cloudy, cold & windy start., with some showers around, ( a mixture of sleet or snow), but also some clear patches with some sunshine. Becoming mostly dry & brighter later. Highest temperature about 3. Winds should moderate as the day goes on. A slow thaw of the 9cms or so.

THIS EVENING & TONIGHT
Mainly dry for much of the period, but a deep low pressure system will be advancing from the west to give a brief spell of snow later in the night, this turning to rain, with a temporary period of milder weather.

THURSDAY
A wet start, with morning temperatures perhaps reaching about 6, before it starts turning colder again during the afternoon. Very strong W. winds(see Met Office warnings) are also likely to develop, as the colder air from the NW returns again.A few snow showers may work through later . Altogether, very unsettled & remaining so into Friday.

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