Weather/Climate
Tropical
Severe Storms
Winter
Safety/Preparedness
100

This is used to measure weather data aloft in the atmosphere.

What is a weather balloon?

100

The minimum wind speed required for a tropical system to become a tropical storm.

What is 39 mph?

100
A violently rotating column of air from the cloud base in contact with the ground.

What is a tornado?

100

This type of snow forms downwind relatively warm lake water when the air is very cold.

What is lake-effect snow?

100
The amount of time you should wait to continue outdoor activities after the last flash of lightning.

What is 30 minutes?

200
With climate change, this is Des Moines' fastest warming season.

What is winter?

200

The minimum wind speed required for a tropical system to become a hurricane?

What is 74mph?

200

The minimum criteria needed for a storm to be classified as severe.

What are 58mph winds, 1" hail, and or a tornado?

200

The number of sides to a snowflake.

What is 6?

200

The slogan you should follow if you come across flooding.

What is "Turn Around, Don't Drown"?

300

This instrument is used to measure wind speed.

What is an anemometer?

300

The months given to Hurricane Season in the North Atlantic Basin.

What is June to November?

300

Irregular clumps of ice that can grow by residing a long time in a storm's updraft.

What is hail?

300

This precipitation type melts completely and refreezes before reaching the ground.

What is sleet?

300

This type of bulletin is issued when conditions are favorable for a weather hazard to occur.

What is a watch?

400

This type of cloud is a high level cloud made up of ice crystals.

What is a cirrus cloud?

400

The rapid rise of seawater when a tropical storm or hurricane approaches land.

What is storm surge?

400

A long lived storm with a persistent rotating updraft.

What is a supercell?

400

This type of precipitation melts completely then refreezes on a below-freezing surface.

What is freezing rain?

400

This type of bulletin is issued when a weather hazard is imminent or already occurring.

What is a warning?

500

Air near the ground converges in a counterclockwise fashion around this weather feature.

What is low pressure?

500

This state holds the record of the wettest tropical cyclone with 60.58 inches of rain from Hurricane Harvey.

What is Texas?

500

The change in wind speed and or direction with height.

What is wind shear?

500

A winter storm with >35mph wind gusts, <1/4 mile reduced visibility, lasting 3+ hours?

What is a blizzard?

500

On average, the deadliest weather related phenomenon.

What is extreme heat?