Doppler radar

In the early days of Doppler radar, all it could detect was:

• Wind

• Air pressure

• Precipitation

• Humidity

What does WSR-88D stand for:

• Doppler radar

• Satellite

• Space station

Doppler radar can not only see the ​ (a)   itself, but it's able to detect which way the precipitation is moving and how ​ (b)   it's moving.

It can detect both ​ (c)   .

The product that shows winds is called the " ​ (d)   " since it's really measuring the velocity of the ​ (e)   inside the storm.

• precipitation
• fast
• precipitation and wind
• base velocity
• rain and hail

So what determines the speed of the wind?

• Moving air

• Moving humidity

• Moving rain and hail

The ability to see the ​ (a)   inside a thunderstorm is a huge deal.

Meteorologist used to issue Tornado warnings solely when someone spotted one ​ (b)   and reported it, or when the thunderstorms on the radar had the classic​ (c)   that possibly indicated the presence of a strong tornado.

• winds
• on the ground
• hook

What indicates a strong Tornado?

• Hook on radar

• Massive rains on radar

  "RED"

• Massive changes in temperature

Where is the Tornado or classic hook hitting in Alabama?

• Salina

• Saline

• Abilene

• Dickinson

​ (a)   shows winds that are moving either towards or away from the radar site.

​ (b)   colors show winds moving away from the radar, while green colors show winds moving ​ (c)   the radar.

​ (d)   shading indicates slower winds, while brighter colors indicate ​ (e)   winds.

• Base velocity
• Red
• towards
• Darker
• faster

Match the following

• Red colors

• Show winds moving away from radar

• Green

• Fast winds

• Darker colors

• Show winds moving towards the radar

• Brighter colors

• Slower winds

When you are looking for a Tornado, you want to look for ​ (a)   .

A couplet is when ​ (b)   colors show up side by side within a Thunderstorm on the base velocity image.

When couplets are ​ (c)   , it's indicative of broad rotation within a thunderstorm.

When the couplet is ​ (d)   , it shows strong rotation within a thunderstorm that could or is producing a Tornado.

• couplets
• Red and Green
• large and relatively weak
• tight and bright