For the U.S., May averages the most tornadoes, but over the years, April has had more deadly twisters. But they can happen just about any time of the year. Tornadoes are likely in the Southeastern states in the late winter and early spring. By mid-April they are more likely to occur on the southern and central Plains and on the northern Plains later in the spring and early summer.

Tornadoes can develop at any time of the year. The most tornadoes occur in April, May and June. Tornadoes are most likely to appear between 3 p.m. and 9 p.m. but they can occur at all hours of the day or night. See similar questions...

Tornadoes are possible anywhere in the United States, but are most common in the central plains east of the Rocky Mountains and west of the Appalachians. They usually occur in the late afternoon and evening during the spring and summer, being most common in the south in early spring and in the northern tier of states in the summer. However, tornadoes can occur on any day of the year and at any hour. See similar questions...

Earthquakes can occur any time of day or night. There is no correlation between time of day and earthquake occurance, although small earthquakes may be more noticeable at night when there is less cultural noise from heavy equipment and transportation, and from weather. See similar questions...

Of the 1000 tornadoes that occur each year, about 2% of them are rated F4 or F5. That means that there are as many as 20 devastating tornadoes each year. It is possible that meteorologists have underestimated the number of violent tornadoes that occur each year. Tornadoes are rated only by damage they do to man-made structures. Therefore, if a tornado doesn't hit a structure of some kind, we cannot estimate its strength. See similar questions...

There is no particular temperature at which tornadoes form. It is more about what the surface temperature is in relation to the temperature higher up in the atmosphere. Even if it is cold near the surface, as long as it is colder higher up, the winds are right to set up low-level wind shear, along with other necessary ingredients, a tornado is possible. See similar questions...

Yes, but the U.S. has more tornadoes and stronger tornadoes than any other nation. The only Web source we've found with information about tornadoes outside the U.S. is the British Tornado and Storm Research Organisation site. It has links to information about tornadoes not only in the United Kingdom, but also other parts of the world. Click here to go to this site. See similar questions...

During the peak season (summer, see our Moving Tips section for more information), your move will cost more. But, if you have children, they will have finished their school year so moving will be less of a hassle. If you have children, the best time to move is the Peak season. But, if you don’t then you have a choice and can usually move at any time of the year. See similar questions...

Ectopic pregnancies commonly cause symptoms between the sixth and seventh week of pregnancy and this usually leads women to seek help at this time. However, the parameters appear to be as wide as between the 4th and 16th week of pregnancy for a tubal ectopic pregnancy, and in some cases longer for ectopic pregnancies located in other sites. See similar questions...

All possible measures, as stipulated by international shipping regulations have been taken. These measures include: the deployment of numerous buoys, the broadcast of frequent warnings on several radio frequencies and the constant monitoring of the area with radar and patrol vessels. In addition, both the Belgium and the French coastguard are on a constant alert for the duration of the salvage operation. See similar questions...

Looking at accident rates for each phase, cruise is the safest part of flying. Only about 6 percent of all accidents occur during this phase. Approximately 35 percent of all accidents occur during takeoff and climb. Nearly 60 percent of accidents occur during descent, approach and landing. Munley, Munley & Cartwright, our goal is to provide exceptional legal services to our clients. See similar questions...

The average fertility cycle for ovulating women starts at the beginning of one menstrual period (day 1) continuing through mid-point ovulation (day 12-14) and ending at the start of the following menstrual period (day 28). Ovulation is an egg moving from an ovary and into a fallopian tube. If the egg is not fertilized, after it has passed through the fallopian tube it is discarded by the body during the next menstrual period. See similar questions...

Because of the relatively steep relief in much of the State, landslides are a real hazard wherever slopes are disturbed by erosion or construction. The Survey has published 36 7.5-minute topographic maps overprinted with landslide information (see description for Survey publication EGB-15). Contact Publication Sales for more information about the maps. For more information about your specific area, contact our Service Section with your precise location. See similar questions...

noted above, in 2004, the MPD changed all of its PSA boundaries, so the Department is familiar and comfortable with the process. The Department doesn't anticipate any significant problems to arise as a result of the transfer. Yes, residents can obtain police service from the nearest district station to where they live. They can also continue to use the 3D meeting rooms for community discussions. See similar questions...

Varicose veins are most commonly found on the legs of women and men who spend a lot of time on their feet. Birth control pills, hormone therapy, obesity, weight fluctuation, and constipation can also add to the development of varicose veins. See similar questions...

In the CDG field all the patients with CDG-Ia have an increased risk for thrombosis because their blood platelets have an increased tendency to stick together and to stick to the wall of blood vessels; for the other CDG-I patients this risk is probably also increased but this has not yet formally been proven also because we know only a small number of these patients. See similar questions...

Our budgeted costs have increased by 3.5% from 2005/06, but there are variations across the industry sectors. See similar questions...

The 'dry' season from April to October seems to be generally considered preferable, at least as far as weather is concerned. See similar questions...