Understanding the dangers Tornado preparedness

-


a tornado no obvious funnel upper clouds, although rotating dust cloud indicates strong winds @ surface.


a tornado operates rotating, funnel-shaped cloud extends downward thunderstorm, ground, swirling winds have reached 300 miles per hour (480 km/h). wind speed might difficult imagine: traveling length of u.s. football field within 1 second (over 130 meters or 430 feet per second). damage paths have been in excess of one-mile wide (1.6 km) , 50 miles long (80 km).


not tornadoes seen. tornado funnel can transparent until reaching area loose dirt , debris. also, tornadoes have been seen against sunlit areas, rain or nearby low-hanging clouds has obscured other tornadoes. occasionally, tornadoes have developed suddenly, rapidly, little, if any, advance warning possible.


before tornado strikes area, wind has been known die down , air become still. cloud of debris has marked bottom of tornado when funnel not visible. tornadoes typically occur along trailing edge of thunderstorm.


the following summary of typical tornadoes:





they may strike quickly, little or no warning.
they may appear transparent until dust , debris picked or cloud forms in funnel.
the average tornado moves southwest northeast in u.s., tornadoes have been known move in direction.
the average forward speed of tornado 30 miles per hour (48 km/h), has varied stationary 70 mph (110 km/h).
tornadoes can accompany tropical storms , hurricanes move onto land.
waterspouts tornadoes form on water.
tornadoes reported east of rocky mountains during spring , summer months.
peak tornado season in southern u.s. states march through may; in northern states, late spring through summer.
tornadoes occur between 3 p.m. , 9 p.m. (local time), have occurred @ other times.






^ tornado , fema.gov, august 2010, web: fema-tornado archived 2011-04-29 @ wayback machine..
^ speed of 300 miles per hour 300*5280 = 1,584,000 feet per hour, or 440 feet (134 m) per second.






Comments

Post a Comment

Popular posts from this blog

File format Wavefront .obj file

-
1 file format 1.1 geometric vertex 1.2 parameter space vertices 1.3 face elements 1.3.1 vertex indices 1.3.2 vertex texture coordinate indices 1.3.3 vertex normal indices 1.3.4 vertex normal indices without texture coordinate indices 1.4 other geometry formats 1.5 referencing materials 1.6 relative , absolute indices file format lines beginning hash character (#) comments. # comment an obj file may contain vertex data, free-form curve/surface attributes, elements, free-form curve/surface body statements, connectivity between free-form surfaces, grouping , display/render attribute information. common elements geometric vertices, texture coordinates, vertex normals , polygonal faces: # list of geometric vertices, (x,y,z[,w]) coordinates, w optional , defaults 1.0. v 0.123 0.234 0.345 1.0 v ... ... # list of texture coordinates, in (u, v [,w]) coordinates, these vary between 0 , 1, w optional , defaults 0. vt 0.500 1 [0] vt ... ... # list of vertex normals in (x,y,z) for...
Read more

CEFR alignment Euroexam International

-
table 1 - euroexam cefr equivalence euroexam provides tests of communicative english language proficiency @ 5 of 6 levels of cefr, practical tool language professionals evaluate different linguistic competencies of ‘can do’ descriptors. euroexams written, marked, , results calibrated based on cefr levels. means euroexam c1 level pass equivalent other exam board’s c1 level pass, example ielts 6.5 no element less 5.5., or cambridge english language assessment s 180 or cae grade c. (see table 1) euroexams has been directly involved in number of cefr development projects, last of in 2016. euroexam employs combination of internal , independent research support claim of equivalence cefr , other major exams.
Read more

Books Soma Valliappan

-
1 books 1.1 hr, investment , management 1.2 columns 1.3 creative writing books hr, investment , management valliyappan’s first book, thittamiduvom vetriperuvom, dealt self-development, published in year 2002. first book did in market , continued authoring books such thottathellam ponnaagum, kaalam ungal kaladiyil etc. introduced many specialized subjects in management tamil readers. valliyappan’s alla alla panam, published in august 2004 kizhakku publishers (new horizon media), created new record of sorts in tamil publishing world. book sold ten thousand copies in first few months of launch, unheard of investment book in tamil. in 2010, book’s sale crossed 1 lakh mark. following phenomenal success of alla alla panam, (aap) introduced basics of stock market, went ahead , wrote 4 more books on different aspects of stock market , investment technical & fundamental analysis (aap-2), futures , options( aap-3), portfolio management (aap-4) , trading (aap-5). soon, valliyappan became name...
Read more