Thunder is the sound of the shockwave caused when lightning instantly heats the air around it to up to 30 000 °C (54 000 °F). That super-heated air expands rapidly, then contracts as it cools.
Thunderstorms occurred 5 days. On the 2nd., 7th., 25th., 27th., & 30th.
A trace of snow occurred on the 2nd. as 1/4" hail. "Melted as it fell".
Since all thunderstorms are associated with some type of forcing mechanism, synoptic-scale or otherwise, the existence of true air-mass thunderstorms is debatable. Therefore the term is somewhat controversial and should be used with discretion.
Types of Thunderstorms single cell, multicell clusters, multicell lines and supercells ...
thunderstorm - (Sometimes called electrical storm.) In general, a local storm, invariably produced by a cumulonimbus cloud and always accompanied by lightning and thunder, usually with strong gusts of wind, heavy rain, and sometimes with hail.
thunder"The sound emitted by rapidly expanding gases along the channel of a lightning discharge.
Thunderstorm/Thundershower: A local storm produced by a cumulonimbus cloud that contains thunder and lightning and often strong wind gusts, heavy rain showers and, at times, hail.
Thunderstorm - A local storm (accompanied by lightning and thunder) produced by a cumulonimbus cloud, usually with gusty winds, heavy rain, and sometimes hail. Non-severe thunderstorms rarely have lifetimes over two hours.
Thunder
The loud booming sound associated with a lightning strike. A lightning strike rapidly heats a column of air (to conduct the charge) which expands outwards. This expansion results in a compression wave in the air which we hear as thunder.
THUNDERSTORM TERMS:
1. Cumulus cloud - a cauliflower shaped cloud with a flat base and sharp edges. Tufts are rising columns of air condensing. As the cloud and cloud droplets grow in size, the base will begin to gray.
Thunderstorm
Sudden electrical discharges manifested by a flash of light (lightning) and a sharp rumbling sound. Thunderstorms are associated with convective clouds (Cumulonimbus) and are more often accompanied by precipitation.
Thunderstorm (TS) A local storm produced by cumulonimbus clouds. It is always accompanied by lightning and thunder. It is estimated that nearly 2,000 thunderstorms occur simultaneously around the Earth at any given instant.
Thunderstorm - a local storm produced by a cumulonimbus cloud, always with lightning and thunder, and usually accompanied by strong gusts of wind, heavy rain, and sometimes hail ...
Thunderstorm Indication
0 to -2
Marginally Unstable - Thunderstorms possible ...
Thunder - the sound of a thunderstorm. Caused by rapid air expansion following a lightning bolt.
Trade winds - winds that blow trade ships in a westerly direction.
Vortex - a spiral of wind ...
THUNDERSTORM: A storm with lightning and thunder, produced by a cumulonimbus cloud, usually producing gusty winds, heavy rain and sometimes hail.
Thunder
A sharp or rumbling sound which accompanies lightning. It is emitted by rapidly expanding gases along the channel of a lightning discharge.
THUNDERSTORM (TS, TSRA, TSTM) - A shower accompanied by thunder. It is always accompanied by lightning and thunder, and occasionally by strong gusty winds, hail, and or heavy rain.
Thunderstorm A mesoscale weather system produced by strong convection currents that reach to great altitudes within the troposphere.
Thunderstorm Local storm resulting from warm humid air rising in an unstable environment.
Thunder
The sound that results from the formation of lightning. This burst of lightning expands air around it, producing an effect similar to an explosion, thus creating the noise.
Weather Glossary Search Page ...
Dry Thunderstorm
Generally a high-based thunderstorm when lightning is observed, but little if any precipitation reaches the ground. Most of the rain produced by the thunderstorm evaporates into relatively dry air beneath the storm cell.
Severe Thunderstorm Warning- Issued when large hail of damaging wind is actually occurring or imminent. Severe thunderstorms can produce tornadoes with little or no advance warning.
Severe Thunderstorm-Any one of the three conditions must be met. 1) Tornadoes 2) Hailstones larger than 3/4" 3) Wind gusts greater than 58 miles per hours.
SEVERE THUNDERSTORM
A thunderstorm with winds measuring 50 knots (58 mph) or greater, 3/4 inch hail or larger, or tornadoes. Severe thunderstorms may also produce torrential rain and frequent lightning.
Severe thunderstorms Intense thunderstorms capable of producing heavy showers, flash floods, hail, strong and gusty surface winds, and tornadoes.
*Severe Thunderstorm - A thunderstorm which produces tornadoes, hail 0.75 inches or more in diameter, or winds of 50 knots (58 mph) or more. Structural wind damage may imply the occurrence of a severe thunderstorm. See approaching (severe).
Severe Thunderstorm Warning - Issued to warn the public, emergency management and other cooperating agencies when a severe thunderstorm is forecast to occur or is occurring.
Thunderstorm
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Back-building Thunderstorm, Core Punch, Dry Thunderstorm, Misoscale, Storm Motion, Tail-End Charlie, TSRA, TSTM
Also listed in ...
Thunder: Strong and booming sound caused by the heating and rapid expansion of the air along the path of lightning.
Thundercloud: Popular expression for Cumulonimbus, the cloud associated with storms.
THUNDER: The sound produced by a stroke of lightning as it rapidly heats the air surrounding the bolt.
TORNADO: A violent rotating column of air, extending from the base of a cumulonimbus cloud to the ground, producing damaging winds up to 300 mph.
Thunder- The sound produced by lightning discharges.
Thunderstorms- Storms that produce lightning and thunder.
Tornado- A violently rotating column of air that reaches from the base of a cloud to the ground.
THUNDERSTORM - A local violent storm caused by large volumes of rapidly rising moist air.
TIP RUDDERS - Rudders at the tips (outside ends) of a wing. Also called dragelons.
TIP VORTICES - See VORTICES.
Thunder: the sound caused by rapidly expanding gases in a lightning discharge.
Thunderstorm: a local storm produced by a cumulonimbus cloud and accompanied by lightning and thunder.
Thunderstorm
A local storm, usually produced by a cumulonimbus cloud (thunderhead), and accompanied by thunder and lightning.
Tidal bore ...
Thunder - The explosive sound of air expanding as it is heated by lightning.
Thunderstorm - A storm produced by a cumulonimbus cloud and always has lightning and thunder. Rain, hail and high winds may or may not occur.
Thunder - The sound caused by a lightning stroke as it heats the air and causes it to rapidly expand.
Thunderstorm - A storm with lightning and thunder, produced by a cumulonimbus cloud, usually producing gusty winds, heavy rain and sometimes hail.
THUNDERSTORM - A large cumulonimbus cloud (deep vertical convection) reaching extreme altitudes, sometimes in excess of 50,000 feet. Often produces heavy precipitation in the form of rain showers and gusty winds.
[Thunderstorms & Tornadoes] [Hurricanes] [Blizzards & Winter Weather] [Clouds] ...
A thunderstorm in which new development takes place on the upwind side (usually the west or northwest side), such that the storm seems to remain stationary or propagate in a backward direction.
New thunderstorms often develop along outflow boundaries, especially near the point of intersection with another boundary (cold front, dry line, another outflow boundary, etc.; see triple point).
The thunderstorms most likely to produce tornadoes are called supercells and are often a product of the severe weather trigger known as the dry line.
A Severe Thunderstorm Watch is issued by the Storm Prediction Center in Norman, Oklahoma.
AIR MASS THUNDERSTORM
A thunderstorm that is produced by convection within an unstable air mass through an instability mechanism.
Supercell Thunderstorm
An unusually violent thunderstorm that is capable of generating tornadoes.
Supercooled Water ...
Air-Mass Thunderstorm - A localized thunderstorm that forms in a warm, moist, unstable air mass. Most frequent in the afternoon in spring and summer.
Nearly all thunderstorms (including supercells) are multi-cellular, but the term often is used to describe a storm which does not fit the definition of a supercell.
NOCTURNAL THUNDERSTORMS Thunderstorms which develop after sunset. They are often associated with the strengthening of the low level jet and are most common over the Plains states.
TS, TSRA- Thunderstorm
TUTT- Tropospheric Upper level Tilted Trough or (Tropical Upper Tropospheric Trough).
Four Basic Thunderstorm Types Thunderstorms occur in a variety of forms, sometimes as an isolated cumulonimbus cloud (anvil shaped), sometimes as a cluster of clouds, sometimes as a squall line, ...
>> Supercell thunderstorms: In some ways, this can be regarded as a special case of the multi-cell storm, with some additional factors.
severe thunderstormA thunderstorm that produces heavy precipitation, frequent lightning, strong, gusty surface winds or hail. A severe thunderstorm can cause flash flooding and wind and hail damage and may spawn tornadoes.
Supercell - A thunderstorm with a persistent rotating updraft. Supercells are rare, but are responsible for a remarkably high percentage of severe weather events - especially tornadoes, extremely large hail and damaging straight-line winds.
Barber poleA thunderstorm updraft with a visual appearance including cloud striations that are curved in a manner similar to the stripes of a barber pole.
They are often along and behind cold fronts and gust fronts, being associated with cool moist air, such as an outflow from a thunderstorm. When observed from a distance, they are sometimes mistaken for tornadoes.
In order for a precipitation target to be detected by the radar, it must fill the entire radar beam; therefore, the radar will have a difficult time detecting small showers and thunderstorms at a great distance from the radar.
TrainingRepeated areas of rain, typically associated with thunderstorms, that move over the same region in a relatively short period of time and are capable of producing excessive rainfall totals.
The most common source of lightning is the electric charge separated in ordinary thunderstorm clouds (cumulonimbus). Well over half of all lightning discharges occur within the thunderstorm cloud and are called intracloud discharges.
cumulonimbus (thunderhead) forms by vertical growth (upward convection) of cumulus cloud
strong upward convection carries growing cloud droplets to high elevations
(where they may freeze to form hail) ...
The thunderstorms that result are the principal source of moisture for this region.
 See also: Thunderstorm, Storm, Cloud, Weather, Air
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