80 to 90
__________ people each year are killed by lightning.
10 to 15
Lightning can occur _______ miles beyond thunderstorms
hair standing up
when you feel your hair __________________ you are fixing to be struck you should roll up into a ball on the ground
3/4 in dime size
Severe thunderstorm means there are wind gusts of at least _____ mph and/or ___________ hail or larger.
when reporting hail do not say __________ size.
1 1/2 inch
do not drive cars through ________________/
if water is up to the ________, you could lose control of the on a bridge or street.
violently rotating ( counterclockwise) column of air contacting the ground.
air rotating counter clockwise but not touching the ground
we have an average of __ tornadoes a year in MS, and __ tornado fatalities per year.
march through june november
tornadoes can occur any month of the year and at any time of the day. but they are especially seen from ________ AND IN _________.
80 60-115 3 1-10 f0-f1
weak- ______% of the tornadoes are weak.
winds- _____ mph.
path- up to ____ miles
lifetime- ______ minutes
fujita scale- ______
19 110-200 15+ 20 f2-f3
strong- ____ % of tornadoes are strong.
winds- _______ mph
lifetime-lasts______ minutes or longer
Fujita scale- _______
1 200 1 1/2 50+m 1 hour or longer f4-f5
violent-____% of tornadoes are violent.
winds-over ______ mph
path- ____wide, ______in length
gulf of mexico
thunderstorm moisture sources:
moisture lift (air rising) instability
you have to have __________,________,and__________ to produce a tornado.
rising currents of air
warm, moist air
_________ is the fuel for tornadoes.
air goes up horizontaly and spins counterclockwise
low base of clouds
_______ air will break up a wall cloud.
tornadoes will develop from the ____ corner of storm. they move _____.
as a spotter, the best place to be is in the ______?
there are some clouds that look like tornadoes, but they are not. look for the ________ if it is not _______ it is not a tornado.
weather radio radio tv
listen to __________________________ for weather updates.
conditions are possible to develop tornado
an actual tornado has been spotted
criss-crossed strong winds
if there has been a tornado, trees will be _________ if they are all blown down in one direction they are blown down from __________ not a tornado.