Weather Quick Quiz Beaufort Force 8 Mean wind

Weather Quick Quiz

Beaufort: Force 8 Mean wind speed (knots): 37 Limit of wind speed (knots): 34 - 40 Description: Gale Sea State: Very Rough - High

Beaufort: Force 10 Mean wind speed (knots): 52 Limit of wind speed (knots): 48 - 55 Description: Storm Sea State: Very High

Beaufort: Force 12 Mean wind speed (knots): N/A Limit of wind speed (knots): Greater than 64 Description: Hurricane Sea State: Phenomenal Note: this use of the word “Hurricane” does not have the same meaning as its use in terms of a tropical storm

Beaufort: Force 1 Mean wind speed (knots): 2 Limit of wind speed (knots): 1 - 3 Description: Light Air Sea State: Calm (rippled)

Beaufort: Force 6 Mean wind speed (knots): 24 Limit of wind speed (knots): 22 - 27 Description: Strong Breeze Sea State: Rough

Rapidly This term describes a weather system that is moving: “at 35 to 45 knots”

Very High This is the term used to describe a wave height: “ 9. 0 to 14. 0 m”

Sea Fog A type of advection fog formed when air that has been lying over a warm water surface is transported over a colder water surface This results in cooling of the lower layer of air below its dewpoint

Rapidly This term describes a weather system that is moving: “at 35 to 45 knots”

Veering The changing of the wind direction clockwise

Very Poor This term describes visibility of: “less than 1000 metres”

Backing The changing of the wind in the opposite direction to veering (anticlockwise)

Very High This is the term used to describe a wave height: “ 9. 0 to 14. 0 m”

Smooth This is the term used to describe a wave height: “less than 0. 5 m”

Gale Warnings Are issued as required throughout the day (for winds of Gale Force 8 or more) These are displayed with the Shipping forecast

Soon This weather changes is: “Expected within six to 12 hours of time of issue ”

Moderate This term describes visibility of: “between 2 and 5 Nm”

Rough This is the term used to describe a wave height: “ 2. 5 to 4. 0 m”

Later This weather changes is: “Expected more than 12 hours from time of issue ”

Beaufort: Force 11 Mean wind speed (knots): 60 Limit of wind speed (knots): 56 - 63 Description: Violent Storm Sea State: Very High

Strong Wind Warnings Are issued as required throughout the day (for winds of Strong Breeze force 6 or more) These are displayed with the Inshore waters forecast

Rising (or falling) quickly Pressure change of 3. 6 to 6. 0 mb in the preceding three hours

Slowly This term describes a weather system that is moving: “at less than 15 knots”

Beaufort: Force 9 Mean wind speed (knots): 44 Limit of wind speed (knots): 41 - 47 Description: Severe Gale Sea State: High

Soon This weather changes is: “Expected within six to 12 hours of time of issue ”

Beaufort: Force 2 Mean wind speed (knots): 5 Limit of wind speed (knots): 4 - 6 Description: Light Breeze Sea State: Smooth (wavelets)

Phenomenal This is the term used to describe a wave height: “greater than 14. 0 m”

Beaufort: Force 7 Mean wind speed (knots): 30 Limit of wind speed (knots): 28 - 33 Description: Near Gale Sea State: Rough-Very Rough

Beaufort: Force 2 Mean wind speed (knots): 5 Limit of wind speed (knots): 4 - 6 Description: Light Breeze Sea State: Smooth (wavelets)

Beaufort: Force 3 Mean wind speed (knots): 9 Limit of wind speed (knots): 7 - 10 Description: Gentle Breeze Sea State: Slight

Good This term describes visibility of: “more than 5 Nm”

Slight This is the term used to describe a wave height: “ 0. 5 to 1. 25 m”

Very Poor This term describes visibility of: “less than 1000 metres”

Beaufort: Force 8 Mean wind speed (knots): 37 Limit of wind speed (knots): 34 - 40 Description: Gale Sea State: Very Rough - High

Rising (or falling) very rapidly Pressure change of more than 6. 0 mb in the preceding three hours

Beaufort: Force 3 Mean wind speed (knots): 9 Limit of wind speed (knots): 7 - 10 Description: Gentle Breeze Sea State: Slight

Poor This term describes visibility of: “between 1000 metres and 2 Nm”

Moderate This term describes visibility of: “between 2 and 5 Nm”

Steadily This term describes a weather system that is moving: “at 15 to 25 knots”

Gale Warnings Are issued as required throughout the day (for winds of Gale Force 8 or more) These are displayed with the Shipping forecast

Good This term describes visibility of: “more than 5 Nm”

Beaufort: Force 11 Mean wind speed (knots): 60 Limit of wind speed (knots): 56 - 63 Description: Violent Storm Sea State: Very High

Beaufort: Force 12 Mean wind speed (knots): N/A Limit of wind speed (knots): Greater than 64 Description: Hurricane Sea State: Phenomenal Note: this use of the word “Hurricane” does not have the same meaning as its use in terms of a tropical storm

Rising (or falling) Pressure change of 1. 6 to 3. 5 mb in the preceding three hours

Moderate This is the term used to describe a wave height: “ 1. 25 to 2. 5 m”

Rising (or falling) quickly Pressure change of 3. 6 to 6. 0 mb in the preceding three hours

Slowly This term describes a weather system that is moving: “at less than 15 knots”

High This is the term used to describe a wave height: “ 6. 0 to 9. 0 m”

Later This weather changes is: “Expected more than 12 hours from time of issue ”

Very Rapidly This term describes a weather system that is moving: “at more than 45 knots”

Steadily This term describes a weather system that is moving: “at 15 to 25 knots”

Imminent This weather changes is: “Expected within six hours of time of issue”

Very Rough This is the term used to describe a wave height: “ 4. 0 to 6. 0 m”

Veering The changing of the wind direction clockwise

Rising (or falling) Pressure change of 1. 6 to 3. 5 mb in the preceding three hours

Poor This term describes visibility of: “between 1000 metres and 2 Nm”

Imminent This weather changes is: “Expected within six hours of time of issue”

Beaufort: Force 1 Mean wind speed (knots): 2 Limit of wind speed (knots): 1 - 3 Description: Light Air Sea State: Calm (rippled)

Very Rapidly This term describes a weather system that is moving: “at more than 45 knots”

High This is the term used to describe a wave height: “ 6. 0 to 9. 0 m”

Very Rough This is the term used to describe a wave height: “ 4. 0 to 6. 0 m”

Beaufort: Force 4 Mean wind speed (knots): 13 Limit of wind speed (knots): 11 - 16 Description: Moderate breeze Sea State: Slight-Moderate

Beaufort: Force 6 Mean wind speed (knots): 24 Limit of wind speed (knots): 22 - 27 Description: Strong Breeze Sea State: Rough

Strong Wind Warnings Are issued as required throughout the day (for winds of Strong Breeze force 6 or more) These are displayed with the Inshore waters forecast

Rather Quickly This term describes a weather system that is moving: “at 25 to 35 knots”

Beaufort: Force 10 Mean wind speed (knots): 52 Limit of wind speed (knots): 48 - 55 Description: Storm Sea State: Very High

Beaufort: Force 0 Mean wind speed (knots): 0 Limit of wind speed (knots): Less than 1 Description: Calm Sea State: Calm (glassy)

Rising (or falling) slowly Pressure change of 0. 1 to 1. 5 mb in the preceding three hours

Beaufort: Force 7 Mean wind speed (knots): 30 Limit of wind speed (knots): 28 - 33 Description: Near Gale Sea State: Rough-Very Rough

Beaufort: Force 4 Mean wind speed (knots): 13 Limit of wind speed (knots): 11 - 16 Description: Moderate breeze Sea State: Slight-Moderate

Rather Quickly This term describes a weather system that is moving: “at 25 to 35 knots”

Smooth This is the term used to describe a wave height: “less than 0. 5 m”

Slight This is the term used to describe a wave height: “ 0. 5 to 1. 25 m”

Moderate This is the term used to describe a wave height: “ 1. 25 to 2. 5 m”

Beaufort: Force 5 Mean wind speed (knots): 19 Limit of wind speed (knots): 17 - 21 Description: Fresh Breeze Sea State: Moderate

Beaufort: Force 0 Mean wind speed (knots): 0 Limit of wind speed (knots): Less than 1 Description: Calm Sea State: Calm (glassy)

Rough This is the term used to describe a wave height: “ 2. 5 to 4. 0 m”

Phenomenal This is the term used to describe a wave height: “greater than 14. 0 m”

Sea Fog A type of advection fog formed when air that has been lying over a warm water surface is transported over a colder water surface This results in cooling of the lower layer of air below its dewpoint