Friday, April 17, 2015

Severe Weather in Canada

Tornado development happens in three different steps. The first thing you need is a horizontal rotating body of air near the ground. This happened because of vertical wind shear which is the change of winds due to height. You then need your horizontal rotating body of air to be lifted off of the ground and become more of a vertical rotating body of air. Once the body of air changes from horizontal to vertical it then becomes known as a mesocyclone. Mesocyclones become fully developed in the updraft of a thunderstorm.
Tornadoes in the U.S. usually travel from west to east. This is because  U.S. isn't the only country that encounters tornadoes. Canada also comes in contact with tornadoes, there are about 80 within each year. The average number of tornadoes that have been observed in the U.S. are 1,200. (http://www.noaa.gov/features/protecting/tornados101.html)

In the picture below it shows the hot spots for tornadoes. The little red dots show the hot spot areas and the hot spot areas in my country are in the central part of Canada.



The three requirements for hurricane formation are warm ocean temperature greater than 80º F, deep warm ocean water going 200m in depth and the Coriolis effect for spinning greater then 5º N. The country of Canada does not have ocean water that is greater than 80º F because Canadas ocean water temperature is around 46º F, with that temperature the water doesn't have a warm depth. The three different terms for hurricanes in different regions are hurricanes, cyclones and typhoons. Hurricanes occur near the Atlantic and East-Pacific. Cyclones occur around Australia and typhoons happen near the coast of China and Indonesia.
The picture below shows the regions of hurricanes.


The general path the hurricanes travel in the U.S. in from east to west this is due to trade winds blow to the west. Intense hurricanes rarely happen in Canada because of the cold water temperature, but hurricanes can leave Canada with light storms. There have been 12 named storms for Canada's seasonal average. On average there are about 6 hurricanes per year in the U.S. (http://www.aoml.noaa.gov/hrd/tcfaq/E17.html)

Friday, April 3, 2015

Daily Weather in Ottawa

Today's blog post is going to be about the daily weather in the capital city of Canada. The capital of my country Canada is Ottawa. My three day forecast will be based around the days April 4th, 5th and 6th. The forecasted high for April 4th is 35º F and the forecasted low is 23º F. The precipitation precent is 20%. The forecasted high for April 5th is 34º F and the forecasted low is 24º F. The precipitation precent is 0%. The forecasted high for the last day April 6th is 37º F and the forecasted low is 24º. The precipitation precent is 20%. The average pressure over these three days was 30in. The pressure slightly increased over the three days, but not by very much. The average wind speed was around 5mph. The wind speed slightly decreased over the three day period.


The image above shows a satellite and radar map of the city of Ottawa. This image shows that there is a lot of low warm clouds surrounding Ottawa. You know this by the grey shading all around the red pin point. There is also light precipitation going on in Ottawa. You can tell this because of the green color surrounding the pin point as well. Ottawa has a lot of green color surrounding it which means that it is surrounded by parks and forests. Ottawa also has a lot of water sources around it, it is pretty close to one of the great lakes.



This map shows a larger and smaller version of a map of central Canada. This map shows different isobars pressures, some of the ones you can see are 1020mb, 1024mb and a few others. This map also shows that there is a L for low pressure. There is also a cold front right next to the low pressure spot. Because this part of the map shows the central part of Canada, most of these things are located right in the middle of my country.