Southwest monsoon-2007
Mid-season review by the Indian Metorological Department
posted on 7 August 2007
Training Course on "Application of Integrated Aeronautical Meteorological Data for Aviation " - News from the Thai Meteorological Department and Hong Kong Observatory, China
More than 50 meteorologists from Thailand and Cambodia participated in the “Application of Integrated Aeronautical Meteorological Data for Aviation” training course organized by the Thai Meteorological Department (TMD) and Hong Kong Observatory (HKO) China from 20 to 26 July 2007. >> more
posted on 3 August 2007
Hottest temperature record in the world, El Azizia, Libya
News from the Libyan National Meteorological Centre
Temperature records of many places of the world are very important. They indicate the degree of heat and cold and also the amount of heat flux or energy received. Furthermore, most human activities are weather-related and influenced by temperature. >> more
posted on 6 June 2007
Information on the intense thunderstorms in the Alcázar de San Juan (Ciudad Real) area on 23 May 2007
News from the Spanish National Insititute of Meteorology
During the afternoon of 23 May 2007, intense thunderstorms affected the Alcázar de San Juan (Ciudad Real) area producing heavy precipitation which in some places exceeded 200litres per square metre. The general atmospheric situation was marked by the presence of a cold storm in the upper air over the NE of the Spanish peninsula and a warm, humid flow in the low levels.(28/05/07)
Throughout the second half of the day, convective activity increased over the southern plateau causing several storms which moved SE-NE with the prevailing wind. In the early hours of the afternoon, the radar watch images for the central zone showed that one of them was developing more than the others and in spectacular fashion. Its uniqueness was accentuated by the fact that its displacement gradually deviated from the mean wind and hence from the other storms in the area. At the same time, it became very large and remained almost stationary in the area NE of Ciudad Real and the border with the province of Toledo for several hours.
In meteorology, such thunderstorms are called “supercells”, which are highly organized convective structures characterized by strong rotating updraughts and an embedded mesocyclone. Occasionally, as occurred in this case, supercells produce torrential rainfall. Their tracks are usually isolated from those of the other storms in the vicinity. In this case, the supercell remained practically stationary in the area of Alcázar de San Juan, and caused copious amounts of precipitation.
The provisional precipitation data available so far show that in Alameda de Cervera (Ciudad Real) 240 mm fell between 8 a.m. on 23 and 8 a.m. on 24 May 2007, which is more than twice the estimated value for precipitation with a 50-year return period.
PPI (Plan Position Indicator) radar image of Madrid showing the lowest scan at 16:20 UTC (6.20 p.m. local time). The colour scale represents reflectivity (dBZ). In principle, the highest reflectivity values correspond to the greatest estimated values of precipitation intensity. The arrow indicates the supercell which affected the area of Alcazar de San Juan.
Estimated accumulated precipitation obtained from the Madrid radar data for the period 12UTC-18UTC (2-8 p.m. local time) on 23 May. The area with the most precipitation produced by the supercell that remained quasi-stationary overhead can be clearly seen.
posted on 29 May 2007
Mr Tyrone Sutherland seeks re-election as Second Vice-President of the WMO
(CARICOM Secretariat, Turkeyen, Greater Georgetown, Guyana) Coordinating Director of the Trinidad-based Caribbean Meteorological Organization, Tyrone Sutherland, is seeking re-election as Second Vice-President of the World Meteorological Organization (WMO), the UN Specialized Agency that coordinates global activity in weather, water, climate and related aspects of the environment.
The election takes place at the Fifteenth Congress of the WMO in Geneva, Switzerland from 7 to 25 May 2007. The elections take place on May 17th. The Congress will approve the scientific and technical programmes and activities of the Organization to be carried out across the world over the next four years. It will also appoint the Secretary-General to lead the Organization, as well as its non-resident President, three Vice-Presidents and an Executive Council that will, along with the Secretary-General, oversee the affairs of the WMO over the next four years. Over the past four years, the WMO President came from Russia, the First Vice-President from Iran and the Third Vice-President from Argentina.> more
posted on 16 May 2007
Met Office joins forces with Australians to improve weather and climate
predictions
In a world where impacts of climate change and severe weather are of vital concern, Met Office Chief Executive, Mark Hutchinson and Dr Geoff Love, Director of the Australian Bureau of Meteorology have signed a partnership agreement combining the science expertise of both forecast centres, with the ultimate aim of improving weather forecasts and
climate change predictions. >> more
posted on 15 May 2007
Update to UK's Met Office summer forecast -1 May 2007
The Met Office issues a long-range forecast for the summer and then reviews it on a monthly basis. The latest seasonal forecast from the Met Office, updated today, still indicates that this summer is likely to be warmer than average.
Following the trend set throughout 2006 and the first part of 2007, seasonal forecasters say there is a high probability that summer temperature will exceed the 1971-2000 long-term average of 14.1 °C.
The Met Office will issue an update of the summer forecast on 30 May 2007. >>more
posted on 2 May 2007 |
