Geology
Question of the Day
5/1/17 Set 4 #6
This day in history …
2003
Record-breaking tornado wave
begins
A record-breaking wave of tornadoes begins across the southern
and midwestern United States on this day in 2003. By the time the
wave is over, more than 500 tornadoes are recorded for the
month, shattering the previous record by more than 100.
The amazing spate of twisters followed an unusually quiet month
of April, when tornadoes are usually most frequent. March and April also saw a lack of significant
thunderstorms, another highly unusual situation. But the residents of the South and Midwest were
not in the clear. In 2003, the moist, warm air necessary for the formation of tornadoes did not arrive
from the Gulf of Mexico until May and, when it did, weather conditions in these regions changed
suddenly. The first 10 days of May brought an incredible amount of destructive weather to the
central United States, including more than 300 tornadoes.
When talking about igneous rocks,
what does texture refer to?
(notes)