Small scale atmospheric disturbances Flashcards
1
Q
Hazards from hail
A
Colorado, 1979- 40 minute hailstorm where they were the size of grapefruits damaged 2000 homes and 2500 vehicles. A 3 month old baby was killed by a hailstone
2
Q
Oklahoma, 1999
A
Multiple supercells led to 72 tornadoes, some had winds exceeding 300mph
40 killed, 675 injured
EF5 tornado through city centre
3
Q
Tangail, 1996
A
On the ground for 20 minutes, going through 90 villages.
EF2
98% of 600 deaths were from sepsis
4
Q
Enhanced fujita scale
A
EF0 - 65-85mph EF1 - 86-110mph EF2 - 111-135mph EF3 - 136-165mph EF4 - 166-200mph EF5 - 200mph+
5
Q
Monitoring/Prediction
A
148 doppler radar's in the US, can give 7 minute warning times 15 minute average warning 85% of EF3+ tornadoes are predicted 194-98 the warning time doubled NOAA has 100 weather balloons
6
Q
Protection
A
Oklahoma put building codes in place in 2014 after 24 died from tornadoes in 2013- windows can withstand 90mph winds
NOAA’s informative website
