lightning
Most dangerous lightning
Bolt from the blue lightning
Thunder is heard after lightning because
Light travels faster than speed of sound
Volcanic lightning
When an eruption occurs, earth and ash are thrown into the air in a giant plume, colliding to create an electrical charge. In the same way as normal lightning, the imbalance between the plume's electrical charge and the charge in the atmosphere leads to lightning strikes
Bolt from the blue lightning
anvil lightning. that this type of lightning strike discharge occurs away from its parent thunderstorm. occurs from the highest regions of a cumulonimbus cloud, which then travels from the cloud before making a descent to the ground. Another classification of this lightning is that it can occur when there are blue skies overhead, not necessarily in a thunderstorm.
Blue color lightning
indication that a high precipitation storm is occurring with chances of hail. This color reflects the radiation from the sun and scattering light from atmospheric particles.
Sheet lightning
intra-cloud lightning, type of lightning that occurs within a cloud and lights up the sky in a sheet of luminosity during the initial flash. While this type of lightning strike itself can't be seen by an observer on the ground, the sheet can be seen in the cloud.
fun fact 1
lightning destroys trees - When lightning hits a tree, it usually travels just below the tree's bark where there is a layer of sap and water. This layer becomes instantly heated and expands causing the bark to be blasted off the tree and sometimes splitting the wood.
White color lightning
most dangerous color of lightning due to the fact that this type of lightning is the hottest. This color can indicate a low concentration of moisture in the air as well as a high concentration of dust in the air.
bead lightning
occurs when the lightning channel breaks up into a string of short bright sections. very rare
Purple color lightning
occurs when there is high humidity in the atmosphere and is typically accompanied by high precipitation.
red lightning
sprites ; electrical discharges that appear as bursts of red light above clouds during thunderstorms. sprites flash for just milliseconds
staccato lightning
strike which is a short-duration stroke that often, but not always, appears as a single very bright flash and often has considerable branching.
Lightning strikes per year
1,400,000,000
how far away can thunder be to hear it
12 mi away
Strike length
2-3 miles
Deduce distance of storm by:
5 seconds = 1 like
Cracking & rumbling
50,000 degree lightning expanding in the air around it
lightning strike temp
50,000 degrees / 5x temp of sun
Yellow color lightning
uncommon, it can be caused when there is a high concentration of dust in the air. It can also be an indication of a dry thunderstorm with low levels of precipitation.
Colder the air =
Slower the sound of thunder travels
Catatumbo Lightning
Constant lightning strikes in Venezuela; over 100 strikes per hour
Warmer the air =
Faster the sound of thunder travels
Which way does electricity travel
From ground up
What transportstion vehicle cause lightning
Helicopter
Anvil crawlers
Lightning striking outside rain zone
lightning can carry over ___ volts of electricity
100 million volts
strike time
2 microseconds
Lightning can travel over __ away from the storm
25 miles
Speed of lightning vs lightning flash
270,000 vs 670,000,000 mph
Strikes per day
3,000,000
strikes per second
50-100
forked lightning
Cloud-to-ground lightning that exhibits downward-directed crooked branches.
ff2
Lightning can help plants grow - extreme heat of a lightning strike causes nitrogen to bond with oxygen to create nitrogen oxides which combine with moisture in the air to fall as rain and water plants with nitrate-rich water.
Width of lightning strike
Size of a thumb / a quarter - 1/4th inch
Thunder
The rapid expansion of the heated air causes a shock wave that produces a loud noise.
Heat lightning
a lightning strike that is too far away to hear the thunder, because thunder can only be heard 12 miles away.
Ff5
average lightning bolt can release enough energy to operate a 100-watt light bulb for more than three months straight
intracloud lightning
forms inside of a single storm cloud, which jumps between different charge regions within the cloud. commonly referred to as sheet lightning bc these lightning strikes will light up the sky in a sheet of light. The parts of these lightning strikes are often obscured by the cloud they originate from, hence they may or may not be visible to an observer studying the lightning from the ground.
Positive cloud to ground lightning
occurs between a cloud and the ground. initiated by downward moving lightning strike which is positively charged. are typically associated with supercell thunderstorms or stratiform precipitation regions. identified by distinctive lack of branching from the main strike or branching at higher altitudes. consists of only one return stroke which is bright and very loud with sounds consisting of low frequency sonic booms.
ribbon lightning
occurs in thunderstorms with high cross winds and multiple strokes. The wind will blow each successive stroke slightly to one side of the previous stroke, causing a ribbon appearance.
Negative cloud to ground Lightning
occurs when there is a discharge between a cloud and the ground. It is initiated by a downward moving strike of lightning which is negatively charged. One of most common types
Green color lightning
streamer, or a channel of positively charged molecules that is attracted to an area of negatively charged molecules. When the two channels meet, the circuit is completed and energy is discharged.green color is due to oxygen molecules being supercharged by the energy from the bolt, then losing the extra energy
fork lightning
sudden flash of lightning with two or more lines of light branching from the initial lightning strike. happens inside of a cloud or between a cloud and the ground
Ff4
until the late 18th century it was believed that ringing church bells repelled lightning so many church bells bore the inscription fulgura frango, meaning 'I chase lightning'.