Heavy rain of southern Khorasan

Investigating the statistical and synoptical condition of a climate of an area requires statisticsthat have accrued daily and really. Some of frequency occurrence of phenomena on should betaken on to consideration. Maybe, in near past, the condition of upper atmosphere was notconsidered and only the surface conditions wave analysed statistically. But today investigatorscan study atmospherically phenomenon in global earth and systematically and identity theclimate pattern with applying various technics and specialized software and remote sensing.Rains is considered to be the most Irregular climate element of sub arid areas. Specially, theunique condition of its case and also heavy rain that usually leads to flood, should be studiedand regarded in environmental programming. Investigating the condition of raining, inparticular heavy rain in southern Khorasan, making use of statistical and synoptically patternsalong with surface map and 500 hp surface in cooperation is a feature of this research Hope,in future, these kinds of practical research by researches in this field. Becomes of more notice.