Spotter Network Flashcards
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Questions and Answers

A highway overpass is a good place to take shelter from a tornado.

False

The ______________ represents atmospheric events varying from a few miles to tens and hundreds of miles including thunderstorm complexes, frontal systems, and precipitation bands in tropical storms.

Mesoscale

The Enhanced Fujita Scale rates tornadoes based on ________________.

the damage they cause

What tornado report best reflects what should be reported on Spotter Network in the given scenario?

<p>Tornado occurring for 5+ minutes roughly 4 miles SW of Anadarko, OK moving northeast. No damage has been spotted.</p> Signup and view all the answers

Most flash flood deaths occur in homes.

<p>False</p> Signup and view all the answers

What cloud type best describes the photo seen below?

<p>Shelf Cloud</p> Signup and view all the answers

_____________ systems are weather making inward spiraling, and ascending, circulation systems. _____________ systems are weather inhibiting descending, outward spiraling systems.

<p>Low Pressure / High Pressure</p> Signup and view all the answers

What should be reported on Spotter Network when observing a yellow sky background?

<p>Tornado</p> Signup and view all the answers

Match the following NWS alerts with their meanings:

<p>Weather Advisories = Issued when events are expected to remain below warning criteria but cause significant inconvenience Weather Warnings = Issued when severe weather events are imminent or occurring Weather Watches = Issued when conditions are favorable for the development of severe weather</p> Signup and view all the answers

About how many tornadoes strike the U.S. each year?

<p>1,000</p> Signup and view all the answers

According to the National Weather Service (NWS), what is the threshold speed for 'severe' thunderstorm winds?

<p>58 MPH</p> Signup and view all the answers

What should be reported on Spotter Network when seeing a pink/blue/gray sky with lightning flashes?

<p>Wall Cloud</p> Signup and view all the answers

What is the first stage of a thunderstorm?

<p>Cumulus Stage</p> Signup and view all the answers

What is the medical requirement for a person who has been struck by lightning?

<p>Is in need of medical attention regardless of any obvious burns</p> Signup and view all the answers

Which section of a severe thunderstorm would most likely contain large hail if the storm is moving northeast at 20 MPH and your location is 5 miles southwest?

<p>Section 3</p> Signup and view all the answers

Select the three necessary ingredients for thunderstorm formation.

<p>Moisture, Lifting Mechanism, Instability</p> Signup and view all the answers

Upon making two low-quality reports on Spotter Network, you will have your reporting privileges removed and will need to retake the Spotter Network Training.

<p>True</p> Signup and view all the answers

What type of thunderstorm produces nearly all of the significant tornadoes?

<p>Supercell</p> Signup and view all the answers

What is the most likely stage for large hail and damaging winds in a thunderstorm?

<p>Mature Stage</p> Signup and view all the answers

Study Notes

Tornado Safety and Misconceptions

  • Taking shelter from a tornado under a highway overpass is not safe.
  • Tornado reports should specify duration and proximity to landmarks, such as stating a tornado has been active for over 5 minutes near Anadarko, OK.

Atmospheric Phenomena

  • Mesoscale refers to atmospheric events that can range from a few miles to hundreds of miles, including thunderstorm complexes and tropical storm precipitation bands.
  • Low pressure systems are characterized by inward spiraling and ascending air circulation, while high pressure systems involve descending, outward spiraling air movements.

Flash Flooding and Weather Alerts

  • Most fatalities from flash floods occur elsewhere, challenging common beliefs.
  • The National Weather Service (NWS) issues advisories for weather events below warning criteria, warnings for imminent severe weather, and watches for conditions favorable to severe weather.

Tornado and Thunderstorm Data

  • The U.S. experiences approximately 1,000 tornadoes annually.
  • Severe thunderstorm wind speed is defined as 58 MPH by the NWS.

Thunderstorm Development and Characteristics

  • The Cumulus Stage marks the first phase of a thunderstorm.
  • Key ingredients for thunderstorm formation include moisture, a lifting mechanism, and instability.

Severe Weather Indicators

  • The shelf cloud is a particular cloud type commonly associated with severe weather.
  • Reports for Spotter Network can include observations like wall clouds when lightning is present, or tornado sightings during particular sky conditions.

Thunderstorm Dynamics

  • The Mature Stage of a thunderstorm is most likely to produce large hail and damaging winds.
  • Supercells are the type of thunderstorms responsible for producing nearly all significant tornadoes.

Report Integrity on Spotter Network

  • Reporting privileges on Spotter Network can be revoked after two low-quality reports, requiring retraining for reinstatement.

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Description

Test your knowledge on meteorological terms and concepts with these flashcards. This quiz covers definitions and classifications related to severe weather phenomena, including tornadoes and atmospheric events. Perfect for weather enthusiasts and those learning meteorology.

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