Welcome to the weekly weather update for Dartmoor supplied by Haytor private weather station
This page will provide a weekly update of expected weather in the Dartmoor National Park.
All of these local Dartmoor forecasts are supplied on an "as is" basis by the Chief forecaster and as such represent his personal opinion on the likely weather and may be used at own risk for any purpose whatsoever. They will be supplied once a week (usually on Thursday or Friday) and will not be updated except for very severe imminent weather. All we ask is that if you find these forecasts useful then let us know mailto:HMO@lyneside.demon.co.uk . Also if reproduced then this original source must be referenced.
The Met Office now provides a daily forecast for Dartmoor at http://www.metoffice.gov.uk/weather/uk/sw/sw_forecast_weather.html so you can now get updates for Dartmoor every day.
Forecast for week Saturday 21st November 2009 to Saturday 28th November issued on Friday 20th November.
Very high confidence for yet more spells of rain and wind this week. Low confidence in detail and timings due to highly volatile weather patterns. High confidence that it will also turn colder with possibly wintry showers by the end of the week above 550m asl.
Saturday will be a wet day with heavy rain and strong to gale force south to southwesterly winds. Rain will turn showery in the afternoon with a few sunny intervals and fresh to strong southwesterly winds. Winds increasing in the evening to become a SW'ly gale overnight with frequent heavy showers. Temperatures 9-10C in the morning falling to 7C by midnight.
Sunday will be a very windy day with gale or even severe gale force west to southwesterly winds bringing in frequent showers of rain and hail. Horrendous conditions at times above 500m asl. with noticeable wind chill. Temperatures 5-8C depending on altitude.
Monday is proving difficult, almost certainly a wet day but uncertainty on how heavy the rain will be. There is a risk of some very heavy rain especially on the southern moor. But things will become clearer nearer the time. Prepare for rain though, with strong to gale force westerly winds. Temperatures 7-10C, possibly a shade cooler on the northern moor.
Rain clears away early Tuesday leaving a rather cloudy drizzly day but possibly some sunshine on NE side of moor. Winds decreasing and becoming SW fresh to strong with temperatures mild at 8-11C. More rain spreading from the west in the evening.
Another wet and windy day on Wednesday with strong to gale SW'ly winds. Temperatures 7-10C.
Winds swing into the west and NW on Thursday and decrease to moderate. Sunny intervals and some showers and turning colder with temperatures 6-8C. Quite cold on Thursday night with temperatures down to 1-3C.
Bright and cold on Friday and Saturday with light to moderate mainly westerly with sunny spells and showers. Temperatures 5-7C with possibly some sleet in the showers above 550m asl. Frost possible on Friday and Saturday nights if the wind drops and skies clear.
Will Hand
Chief Forecaster Haytor