Beaufort Scale
Total number of ratings in the scale
13 - 0 thru 12
The hottest layer
Thermosphere
Shown on a weather map using blue spikes
cold front
(NOTE: also used with red humps to show a stationary front)
Warm, dry, formed over land
Tropical continental
a large body of air covering much of the continent or the ocean, in which the temperatures, pressure, and humidity are all fairly constant
air mass
The Beaufort scale was introduced in what year?
1805
The calmest layer
Stratosphere
Spikes and humps point which direction?
Direction of movement
Antarctic maritime
a rotating storm created by an area of low pressure which draws are in
Cyclone
This rating has wind speeds at 47-54 mph and can result in minor damage to buildings, with roof tiles and chimney pot blowing off
9 - strong gale
Layer(s) where the temperature is lowest at the bottom and highest at the top
Thermosphere (-184 bottom; 3600 top)
Stratosphere (-60 bottom; 5 top)
Lines of equal pressure
Isobars
3 -
tropical continental
tropical maritime
equatorial maritime
dew point
This rating has wind speeds at 13-18 mph with small waves up to 4 feet
4 - moderate breeze
The area between the Thermosphere and the Mesosphere is called
Mesopause
Shape(s) and color(s) used to show an occluded front
Purple humps and spikes
cool and damp - these air masses start of chilly but get warmer and damper as they move over the ocean
Polar maritime
the sun power that hits the ground
insolation
Nam all 13 ratings in order starting with "calm"
0- calm
1 - light air
2 - light breeze
3 - gentle breeze
4 - moderate breeze
5 - fresh breeze
6 - strong breeze
7 - near gale
8 - gale
9 - strong gale
10 - storm
11 - violent storm
12 - hurricane
"Sounding rockets" release a compound that creates what
white, expanding clouds
Basic unit of pressure just marginally less than average atmospheric pressure at ground level
Bar
These masses can spread from the Sahara Desert into Europe bringing heat waves and sometimes orange skies
Tropical continental
how much moisture there is compared to the total it could hold at that temperature
relative humidity