In order to evaluate the risk of tsunami evacuation route in the snow season against the slip and rollover caused by fallen snow, the clarification of meteorological characteristics in Iwate coastal area and some analyses related to the tsunami evacuation routes 0f 3 schools were implemented. At the coastal area, the surface temperature decreased most in January. The snowfall-rainfall frequency ratio was highest in February. At the low population density area or north-middle coastal region, the possibility of snowfall has been estimated to be higher than other regions. Iwate coastal region has steep slope terrain and there are many residential areas along the foot of mountain. These specific terrain significantly diminish the sunlight area to reach at the residential area, and their areas are not expected to have the snow melting effect by sunlight, was revealed. Moreover, evacuation routes at stairs section of Omoto Elementary School, narrow-steep-sloping road section of Taro-Daiichi Junior High School, and northern slope section of Miyako Elementary School have high possibility of snow coverage in winter, evacuees may slip easily during the evacuation behaviour. Therefore, a few effective techniques to assure the safe behaviour were suggested.
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