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Teesdale week's Forecast

Teesdale weekly forecast, issued Sunday 23rd February, valid Wednesday 26th February until Sunday 1st March, next update by Sunday 8th.Colder with wintry showers, windy againThe jetstream will be powerful yet again this week and is expected to move south for a time. This will place Teesdale in the colder polar air. Wintry showers with hill snow and sunny intervals should be the weather on most days and winds will remain fresh but not as damaging as they have been.This week's overall prediction for mid-Teesdale:- high 6°C (43°F), low -1°C (30°F) precipitation 25mm (1.0inch), sunshine 25hr, high gust 50mph. Risks:- flooding medium, gale medium, grass frost high, fell snow high.The wintry showers will be heaviest in the upper dale as often happens with strong westerly flows. Snow is expected on the hills and down to lower levels in the heavier showers. It will be cold enough for night frosts, but the winds will be too strong for any really cold temperatures. With colder polar air come clearer skies and improving visibility except during the showers and any blowing snow. I am hoping that this week will see less rain than recently. We would certainly appreciate this. February has been the wettest on my 50 year record, with double the expected amount of rain.Last week's weather:- Screen temperature 4.3°C (normally 2.6°C) High 8°C(46°F) Saturday. Low 1°C(34F) Wednesday. Low grass surface -2°C(28°F) Wednesday. Windiest 70mph Friday. Precipitation 55mm (norm 17mm). Sunshine 20hr (norm 23hr).The interesting weather seems to be happening at weekends at the moment and last weekend was no exception with a lee slope gale off the Pennines and winds touching 70mph in Teesdale. These gales happen when the air rising over the Pennine ridge hits a stable boundary layer and bounces back downhill. The waves move across us slowly bringing strong gusts below them.Ken Cook’s 12 hourly Teesdale forecasts, http:// www.kencook.magix.net



COPLEY CLIMATOLOGICAL STATION altitude 253metres(830feet) Met Office manned observing site.