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in grasses and the potential then for high summer pollen counts. Conversely, very dry weather in spring suppresses pollen production in grasses, reducing the potential, and very hot and dry weather actually prevents grasses from growing at all. For tree pollen, the production occurs in the catkins

a broad swathe of the UK in the first week, with a major change from the end of this week and beyond as very cold air from Scandinavia floods south into the UK. We can project these extremes onto large-scale weather patterns: with high pressure towards Greenland; low pressure over Scandinavia

spring of 2011 had adverse effects on agriculture and the environment, with eastern counties worst affected. Conditions were difficult for both livestock farmers and growers. River and groundwater levels became very low, resulting in widespread environmental impacts. During May 2011, wild fires

eyes and keeping a keen eye on the pollen forecast. After the wettest March in over 40 years for England and Wales, some are now wondering what the weather we’ve seen so far could mean for the release of pollen this year, with ‘very high’ forecasts for tree pollen already for some areas of the UK

of such abrupt change include: • changes to northern hemisphere weather patterns; • socio-economic changes (e.g. new shipping routes); • loss of Arctic wildlife habitats. Changes in ocean circulation Current understanding suggests it is very likely that North Atlantic Ocean circulation will weaken

: “The Southern African region is particularly prone to severe weather events that occur over very short timescales. Making predictions in the very short term fulfils one of the key societal needs for accurate warnings of adverse weather events, such as heavy rain and flooding in order for the protection of life

. “Weather and climate issues are very dynamic, getting clear information is likely to tackle a dozen issues of which can help both us (MALF) and the farmers in the rural areas,” he said. Musa Habili, a Regional Officer In Charge of Tanzania Shipping Agencies Corporation said the MHEWS project had

or visuals The radar records data about the precipitation, but to be useful the data needs to be turned into information about the incoming snowstorm Snowstorm: A very heavy fall of snow that is blown by strong winds for a sustained period of time. It can include snow, sleet, ice and freezing rain

is fully available from the “Invent” web site and planned to be moved across to the main site in the near future. • RV reported the hurricane forecast had been very accurate this year. One thing it had highlighted though was that despite being an active season, the impact was low, due to very little

Tony Wisson explained: “The recent very warm weather for the time of year is subsiding over the weekend as a weak cold front moves over the UK. We expect cooler temperatures as the front pushes south. This cooler air will also help introduce isolated showers across eastern parts, but it should stay