25
4
Moderate
breeze
20 ~ 28 km/h
Dust and loose paper raised. Small
branches begin to move.
13 ~ 17 mph
11 ~ 16 knots
5.5 ~ 7.9 m/s
5 Fresh breeze
29 ~ 38 km/h
Branches of a moderate size move.
Small trees in leaf begin to sway.
18 ~ 24 mph
17 ~ 21 knots
8.0 ~ 10.7 m/s
6 Strong breeze
39 ~ 49 km/h
Large branches in motion. Whistling heard
in overhead wires. Umbrella use becomes
25 ~ 30 mph
22 ~ 27 knots
10.8 ~ 13.8 m/s
7 High wind
50 ~ 61 km/h
walk against the wind.
31 ~ 38 mph
28 ~ 33 knots
13.9 ~ 17.1 m/s
8 Gale
62 ~ 74 km/h
Some twigs broken from trees.
Cars veer on road. Progress on foot is
seriously impeded
39 ~ 46 mph
34 ~ 40 knots
17.2 ~ 20.7 m/s
9 Strong gale
75 ~ 88 km/h
small trees blow over. Construction /
temporary signs and barricades blow over.
47 ~ 54 mph
41 ~ 47 knots
20.8 ~ 24.4 m/s
10 Storm
89 ~ 102 km/h
damage likely.
55 ~ 63 mph
48 ~ 55 knots
24.5 ~ 28.4 m/s
11 Violent storm
103 ~ 117 km/h
Widespread vegetation and structural
damage likely.
64 ~ 73 mph
56 ~ 63 knots
28.5 ~ 32.6 m/s
12 Hurricane force
Severe widespread damage to vegetation
and structures. Debris and unsecured
objects are hurled about.
4.3.14 RAIN
The RAIN section shows the rainfall or rain rate information.
1. Period of rainfall and rain rate
2. Reading of rainfall or rain rate
3. Rain rate level
1
2
3
4.3.14.1 THE RAIN DISPLAY MODE
Press [ RAIN ] key to toggle between:
- DAY - the total rainfall from midnight (default)
- WEEK - the total rainfall of the current week
- MONTH - the total rainfall of the current calendar month
- TOTAL - the total rainfall since the last reset
- RATE - current rainfall rate (base on 10 min rain data)
- HOUR - the total rainfall in the past hour
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