Using the surface analysis in illustration...

Question 1 / 2066636ee928f7522a1c51a55a

Question 1 of 2066636ee928f7522a1c51a55a

Using the surface analysis in illustration D049NG below, what wind speed is reported in position C?

Back

Question 1 of 20

66636ee928f7522a1c51a55a

Using the surface analysis in illustration D049NG below, what wind speed is reported in position C?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

• Decode the wind barb symbols used on surface analysis charts • Remember that each full barb and half barb represents a specific wind speed in knots • Wind speed is read from the number and type of barbs, not from isobars or pressure values

💭 Think About

• Look closely at the station model at position C and count exactly how many barbs are on the wind arrow and whether any are half-length • Recall the standard knot values assigned to a full barb, a half barb, and a pennant, then total them for position C • Compare your calculated wind speed with the multiple‑choice options and decide which one matches

✅ Before You Answer

• Be sure you are reading only the wind barb at C, not A, B, D, or E • Confirm you know the standard coding: full barb = ? knots, half barb = ? knots, pennant (triangle) = ? knots • Double‑check that you’re not confusing wind direction (where the arrow points) with wind speed (number/type of barbs)

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed

Question 1 of 20

Using the surface analysis in illustration D049NG below, what wind speed is reported in position C?

3 knots

10 knots

20 knots

30 knots

Loading interactive features...