Using ASCAT Wind and Other Data in Marine Forecasting

4.0 Forecast Future Conditions at a Projected Point » 4.3 Draw Cold Front

Drawing Question

Draw the cold front on the 10 m NWP wind field.

Instructions: Use the pen to draw the cold front, then click Done.

Tool: Tool Size: Color:

The cold front is identifiable by the boundary/zone along which we see a sharp wind shift from northwesterly to southwesterly accompanied by very strong and gusty wind speeds. Such a boundary is seen west and northwest of the Polarstern’s plotted position (the yellow star).

GFS 10m wind field overlaid on MSG airmass RGB in South Atlantic on 6 UTC 23 Nov 2013