Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| Some are true some are not |
|
|
Term
|
Definition
| What happened yesterday will likely happen today, depends on weather patterns and your location |
|
|
Term
|
Definition
| Long term average weather conditions used to predict weather for a given day |
|
|
Term
|
Definition
| Assumes that the speed and direction of weather systems will not change, something happened in the west, it will happen to you |
|
|
Term
|
Definition
| Finding a date in the past where the weather map looks just like today (pattern matching) |
|
|
Term
|
Definition
| Variables are placed into computers (such as pressure, temp. winds, and humidity) |
|
|
Term
|
Definition
| Rising air parcels cool and condense, if rising air continues to cool and condense the cloud will become taller. Latent heat release takes place, vapor changes to liquid |
|
|
Term
|
Definition
| Cooler drier air helps evaporate water in the sky, the heavier air descends. Causing down drafts which feed the cloud |
|
|
Term
|
Definition
| the exhaling process of wind/cool air from a cloud or thunderstorm |
|
|
Term
|
Definition
| exhaling air from a thunderstorm |
|
|
Term
|
Definition
| strong updrafts push the cloud into the stratosphere |
|
|
Term
|
Definition
| updrafts weaken and the storm starves itself, normally occurs 30 min. after storm development |
|
|
Term
|
Definition
| The rotating updraft in a supercell |
|
|
Term
|
Definition
| Updraft (food supply) for the mesocylcone |
|
|
Term
|
Definition
| rear portion of the mesocyclone's downdraft |
|
|
Term
|
Definition
| "suck zone" Influx of moisture rich air into a mesocyclone |
|
|
Term
|
Definition
| A thunderstorm with a deep, rotating updraft |
|
|
Term
|
Definition
| Mesoscale Convective Complex |
|
|
Term
| Mesoscale Convective Complex |
|
Definition
| Covers many state and produces severe weather |
|
|
Term
| Mesoscale Convective Systems |
|
Definition
| Large grouping of multiple storms that move together and last for hours. Can contain mesoscale convective complexes |
|
|
Term
|
Definition
| A discharge of electricity in a mature thunderstorm |
|
|
Term
|
Definition
|
|
Term
|
Definition
| Charge separation in clouds + moves up - moves down. Negative charges attracted to positive ground charges and the negative charges overcome the insulation of the air |
|
|
Term
| How far away is lightning |
|
Definition
| See lightning count, every 5 seconds is a mile |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| Lightning that occurs within a cloud and is obscured by other clouds |
|
|
Term
|
Definition
| distant lightning that illuminates the sky but is too far away for thunder to be heard |
|
|
Term
|
Definition
| A luminous sphere that appears to float in the air |
|
|
Term
|
Definition
| When the wind blows a stepped leader horizontally |
|
|
Term
|
Definition
| leaves the cloud base, almost invisible |
|
|
Term
|
Definition
| the upward flow of current that we see |
|
|
Term
|
Definition
| Heating and expansion of the air creating a shock wave |
|
|
Term
|
Definition
| A rapidly rotating column of air whose rotation reaches the ground |
|
|
Term
|
Definition
| Dust swirling upwards from the ground and grows toward the funnel cloud |
|
|
Term
|
Definition
| downward extend of funnel and "connection" with dust whirl on the ground |
|
|
Term
|
Definition
| Tornado on the ground. Strong winds and whistling howl noise is produced by winds |
|
|
Term
|
Definition
| Overall decrease in the tornado shape, size, and width. Tornado will begin to tile and appear to not be vertical anymore |
|
|
Term
|
Definition
| stretched into a thing funnel shape rope, tornado becomes greatly contorted and stretched |
|
|
Term
| Where do the tornadoes form |
|
Definition
| The mesocyclone (a large rotating vortex inside a supercell thunderstorm that sometimes produces tornadoes) |
|
|
Term
|
Definition
F0 - 40-72
F1 - 73-112
F2 - 113-157
F3 158-206
F4 207-260
F5 261-318
F6 318+ |
|
|
Term
| How can you tell a tornado is forming |
|
Definition
| Strong persistent rotation in the cloud base (wall cloud). Swirling debris. Heavy rain and hail followed by calm |
|
|
Term
| How can you detect a tornado on radar |
|
Definition
| Red means wind blowing away from radar green means blowing toward radar |
|
|
Term
| Who issues weather warnings |
|
Definition
|
|
Term
| Who issues Tornado watches |
|
Definition
|
|
Term
| Severe Thunderstorm Criteria |
|
Definition
| Winds of 58mph or more or 3/4" hail or larger |
|
|
Term
| Difference between tornado and thunderstorm warning |
|
Definition
| Means tornado has been spotted |
|
|
Term
| How long does a watch typicall last? |
|
Definition
|
|
Term
| How long does a warning typically last? |
|
Definition
|
|
Term
| Storm Prediction Center issues |
|
Definition
|
|
Term
| National Weather Service issues |
|
Definition
Daily forcasts at 4am and 4pm
Climactic summaries for major cities
Hazardous Weather Outlook
Severe weather warning |
|
|
