Reference Manual Part 2

G-Series Reference Manual 116
Lightning
The system puts a lightning symbol at every cloud-to-ground strike
recorded within the last 5, 10 and 15 minutes.
Surface observation stations
You can view current or historical weather data at surface observa-
tion stations.
City forecasts
The Cities option gives you access to details of city weather fore-
casts. Forecasts for up to three days may be available.
Wind
This option displays the current wind direction and magnitude. You
can choose (using the Weather Setup Menu) to display the wind
symbol as either an arrow or a wind barb. Wind arrows give an indi-
cation of wind speed - the larger the arrow the stronger the wind.
Wind barbs give a more precise representation of wind speed:
Waves
This option gives you wave period, wave direction and wave height
data.
Strike recorded in
last 0 - 5 minutes
Strike recorded in
last 5 - 10 minutes
More recent strikes
overlay older ones
Strike recorded in
last 10 - 15 minutes
D8575_1
Lightning Strikes
Buoy Station C - MAN WSI NWS
All surface observations stations are represented by a pink symbol:
D8975-1
3-7 kts 8-12 kts 13-17 kts 18-22 kts 23-27 kts 28-32 kts 33-37 kts
38-42 kts
43-47 kts 48-52 kts
53-57 kts
78-82 kts73-77 kts68-72 kts63-67 kts58-62 kts 88-92 kts83-87 kts 98-102 kts93-97 kts
Wind speed symbols
D8571_1
etc.