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Saturday, 21 November 2009: dawn to dusk
Persistent rain soon spreading in from the southwest with accompanying gale force winds.
| Hazards | Risk | Explanation |
|---|---|---|
| Blizzards | No Risk | |
| Heavy snow | No Risk | |
| Storm force winds | Medium | Occasional gusts up to 70 mph may occur across exposed summits and ridges. |
| Gales | High | Widespread gales expected. |
| Severe chill effect | High | Due to driving rain and severe gale force winds. |
| Persistent and extensive hill fog | High | In the low cloud associated with the persistent rain. |
| Thunderstorms | No Risk | |
| Heavy persistent rain | High | From early morning onwards. |
| Dawn to 0900 | 0900 to 1200 | 1200 to 1500 | 1500 to dusk |
![]() Cloudy |
![]() Heavy Rain |
![]() Heavy Rain |
![]() Light rain |
| 30% | 80% | >90% | >90% |
A dry start but cloudy. The cloud will continue to thicken and lower as persistent rain spreads in from the south. The rain will be heavy at times, reaching the Lake District early in the morning and persisting through until late afternoon as clearer, drier, conditions spread in.
Good at first, soon becoming moderate to poor in the rain later.
Nil at first but cloud lowering ahead of the rain to become overcast at 350 metres and above, occasionally broken at 250 metres.
Southeast 35-40 mph, gust 55 mph, increasing 40-45 mph, gust 62 mph. Across exposed summits and ridges winds will reach 45-50 mph at times, gust 70 mph.
| Valleys | Plus 5 Celsius rising to Plus 10 Celsius |
| 900 m | Plus 6 Celsius rising to 8 Celsius |
| Freezing level | Above summits. |
A bright day with blustery showers throughout the course of Sunday. The showers will be heavy at times with hail and a risk of thunder and may also be wintry on the highest peaks. The showers will remain scattered during the day.
Good falling moderate to poor in the showers.
Occasionally broken at 350 metres.
Southwest veering West 40-45 mph, gust 75 mph, over exposed ridges and summits.
| Valleys | Plus 6 Celsius rising to Plus 9 Celsius |
| 900 m | Plus 5 or 6 Celsius |
| Freezing level | Above summits. |
Another bright day with scattered, blustery, showers. The showers will be heavy at times with hail and a risk of thunder and may also be wintry on the highest peaks. During the day the showers will become less frequent and lighter before dying out later. Widespread gales at first before winds ease during the day.
Cloudy with rain. The rain will be persistent and occasionally heavy with widespread hill fog. Gales will also become widespread. During the day brighter, showery, conditions will spread in. The showers will once again be heavy at times.
A bright day with scattered showers. The showers will be heavy at times and turn wintry on the highest peaks. During the day the showers will become less frequent before dying out later. Widespread gales at first easing during the day.
Orkney & Shetland
Highlands & Eilean Siar
Grampian
Strathclyde
Central, Tayside & Fife
SW Scotland, Lothian Borders
Northern Ireland
Wales
North West England
North East England
Yorkshire & Humber
West Midlands
East Midlands
East of England
South West England
London & South East England
Avalanche Information for Scotland
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