Winds and Weather

Question 1

USCG Weather Forecasts are broadcast on What Channel?

Answer 1

VHF 22A

Question 2

NOAA Weather broadcasts on what channel?

Answer 2

126.55mhz Seattle 162.47mhz Olympia

Question 3

Nationa; Weather Service Forecast Weather how?

Answer 3

Weather fax

Question 4

Marine Weather forecasts are transmitted?

Answer 4

4 hours daily with updates every 2-3 hours

Question 5

Puget Sounds climate is mild because?

Answer 5

Prevailing westerlies bring in mild moist marine air from the pacific ocean

Question 6

The average annual rainfall in puget sound is?

Answer 6

38 inches

Question 7

The steady influx of marine air results in?

Answer 7

mild winters and cool summers

Question 8

Daily temperature range is described as?

Answer 8

small and short duration

Question 9

How many thunderstorms are averaged annually in Puget Sound?

Answer 9

8 Thunderstorms

Question 10

What months are the winds strongest at the entrance to the Strait of Juan de Fuca?

Answer 10

October thru March

Question 11

As low pressure systems approach the coast, what does the wind do?

Answer 11

strengthens and backs to the SE quadrant

Question 12

As storms pass the coast, what does the wind do?

Answer 12

Wind veers to the SW or NW

Question 13

Gales usually last ____ days with duration between storms ___________ days?

Answer 13

less then one day, 1-5 day duration

Question 14

What are the two wind seasons?

Answer 14

Winter- October thru March

Summer- April thru September

Question 15

From October thru March, winds blow at the entrance mostly from where?

Answer 15

SE-SW with gales 4-6 days per month

Question 16

Which winds raise dangerous and confused seas off cape flattery?

Answer 16

SE and are consistently the strongest

Question 17

What makes Vancouver Is a dangerous lee shore betwween Cape Cook and Port San Juan?

Answer 17

Strong winds from the South

Question 18

Winds near the entrance to the Straits have been recorded at what strength?

Answer 18

65kts with gusts to 90?

Question 19

In the straits, strong winds have been recorded at what speeds?

Answer 19

50kt winds with gusts near 80 have been reported

Question 20

Where is it safer when the wind blows from the South?

Answer 20

Usually inside the straits when off-shore

Question 21

In the summer, what is the predominant wind direction?

Answer 21

SW thru NW around subtropical highs

Question 22

In the summer, what influences the wind in the late afternoon?

Answer 22

The sea breeze can result in winds up to 30kts

Question 23

What winds are the most frequent in the Straits of Juan de Fuca in the Summer?

Answer 23

SW thru West

Question 24

In the winter (Oct-Mar), what are the most frequent winds in the strait of Georgia?

Answer 24

SE’ly are most common

Question 25

Despite being sheltered by the mountains and Vancouver island from the sea, how often are gales in the winter in the strait of Georgia?

Answer 25

3-4 times per month

Question 26

What is a Suquamish Wind?

Answer 26

A sudden wind that occurs in most major inlets of the strait of Georgia in the winter months and can result in winds up to 50kts

Question 27

How can Puget Sound be described with regards to weather?

Answer 27

Open to the North and South and Protected to the East and West by Mountains

Question 28

Where are the winds from in Puget Sound in the Winter (Sept-Mar)?

Answer 28

Mainly from the SE-SW

Question 29

Where are the winds from in Puget Sound in the late Spring and Summer?

Answer 29

North thru NW

Question 30

What is responsible for the mainly S’ly flow in Puget Sound?

Answer 30

Lows moving thru or Near Puget Sound

Question 31

What best describes the strength of winds in Seattle?

Answer 31

Sustained Winds of 56kts gusts to 60 have been recorded with winds strongest in winter and early spring.

Question 32

What is the most common type of fog in The straits

Answer 32

sea fog

Question 33

When is sea fog the worst in the straits?

Answer 33

July to October

Question 34

When is land fog encountered?

Answer 34

The winter Months

Question 35

Where is fog the most frequent in the straits?

Answer 35

Western end

Question 36

How many days annually is visibility reduced on average in the straits of Juan de Fuca?

Answer 36

55 days on the west end, 35 days on the east end

Question 37

Fog is carried by a sea breeze and usually penetrates further on which shore of the Straits of Juan de Fuca?

Answer 37

Southern Shore

Question 38

Where is fog less likely to reach in the straits of Juan de Fuca?

Answer 38

Victoria

Question 39

`Often when thick fog prevails in the straits of Juan de Fuca….

Answer 39

Skies are clear north of Race Rocks

Question 40

Which type of fog more effects the strait of Georgia?

Answer 40

Land fog more then sea fog

Question 41

How does land fog form?

Answer 41

Land Fog forms on cool, clear nights with light winds and usually dissipates by early afternoon.

Question 42

How many days per year does fog cause visibility problems in Puget Sound?

Answer 42

25-40 days annually on average

Question 43

When is fog most likely to hinder Navigation on Puget Sound?

Answer 43

Autumn and again in Jan/Feb

Question 44

In Admiralty Inlet, fog limits Navigation to less then .5nm how often?

Answer 44

4-8 days per month during the foggy season

Question 45

Where is fog less likely to occur in Puget Sound?

Answer 45

Off Point Wells and Three Tree Point

Question 46

In Seattle, visibility falls below .5nm how often?

Answer 46

3-6 days per month in the foggy season

Question 47

A significant Navigational Hazard: fog

Answer 47

Land and Sea fog combining at the western straits

Question 48

A significant Navigational Hazard: Wind/Seas

Answer 48

SE wind meeting heavy SW Swell makes a dangerously confused sea at the entrance to Juan de Fuca

Question 49

A significant Navigational Hazard: rain

Answer 49

Heavy rains at the entrance from December thru March often reduce visibility below .25 miles