Wind Speed Legend

  Description Beaufort kt km/h
icon icon Calm - Light Winds 0-3 0-10 0-19
icon Moderate Winds 4 11-16 20-30
icon Fresh Winds 5 17-21 31-39
icon Strong Winds - Near Gale 6-7 22-33 40-61
icon Gale - Strong Gale 8-9 34-47 62-87
icon Storm - Hurricane 10-12 48+ 88+

Temperature Legend

°C°F
< -5< 23
-5 - 023 - 32
0 - 532 - 41
5 - 1041 - 50
10 - 1550 - 59
15 - 2059 - 68
20 - 2568 - 77
25 - 3077 - 86
30 - 3586 - 95
35 - 4095 - 104
≥ 40≥ 104

Relative Humidity Legend

< 25% 25-50% 50-75% ≥ 75%

Frost Risk Legend

Nil Low Slight Moderate High Severe

UV Index Legend

Low Moderate High Very High Extreme

Radar/Satellite Animator Symbols

Rainfall Intensity

light dBz scale heavy

The intensity of rainfall detected by weather radars is indicated using the above scale.

Doppler Wind

90km/h towards velocity scale 90km/h away

On Doppler radar images the radial component of the movement of particles in the air is indicated using the above scale.

Lightning Events

lightning Lightning strikes are displayed as crosses (ground events) or squares (cloud events) and fade from white (current) to red (30 minutes ago) to blue (60 minutes ago). Positive strikes appear as diagonal crosses.

Accumulated Rainfall (since 9am)

rainfall Rainfall since 9am local time is displayed with coloured dots.

Observations Rose

observations Surface observations are displayed as a 'rose' with temperature, dew point and relative humidity down the left-hand side and rainfall since 9am, pressure and location name displayed down the right-hand side.

Temperatures fade in colour from blue (cold) to red (warm) and dew points fade in colour from blue (moist) to red (dry).

How to Read a Wind Barb
wind barbs

A wind barb is a compact means of representing both wind speed and direction graphically.

Each full-barb represents 10 knots (nautical miles per hour), a half-barb 5 knots and a flag 50 knots. Calm conditions are indicated by a dot only. 1 knot is equal to around 1.9km/h.

In the examples to the left the first indicates a 5 knot wind from the south-west, the second a 15 knot wind from the west-north-west, the third a 45 knot easterly and the fourth a 65 knot northerly.

Warnings

Warnings
Severe weather, thunderstorm, tropical cyclone
Fire weather
Flood
Coastal wind
Graziers, bush walkers, frost

Sentinel Hotspots

Sentinel hotspots detected within the last 6 hours are displayed. Sentinel is a satellite-based national bushfire monitoring system operated by Geoscience Australia.

Sentinel Hotspots
≥ 150°C
≥ 100°C
≥ 50°C
< 50°C

Weather Forecast Icons

icon
Clearing shower
icon
Cloudy
icon
Cloud and wind increasing
icon
Cloud increasing
icon
Drizzle
icon
Drizzle clearing
icon
Fog then sunny
icon
Frost then sunny
icon
Hazy
icon
Heavy rain
icon
Heavy showers
icon
Increasing sunshine
icon
Late shower
icon
Late thunder
icon
Mostly cloudy
icon
Mostly sunny
icon
Overcast
icon
Possible shower
icon
Possible thunderstorm
icon
Rain
icon
Rain and snow
icon
Rain clearing
icon
Rain developing
icon
Rain tending to snow
icon
Showers
icon
Showers easing
icon
Showers increasing
icon
Snow
icon
Snowfalls clearing
icon
Snow developing
icon
Snow showers
icon
Snow tending to rain
icon
Sunny
icon
Thunderstorms
icon
Thunderstorms clearing
icon
Windy
icon
Windy with rain
icon
Windy with showers
icon
Windy with snow
icon
Wind and rain increasing
icon
Wind and showers easing

Site search


Enter a postcode or town name for local weather, or text to search the site. » advanced search

Spectacular spiral low and outback storms

10:31 AEDT Satellite images have captured a line of thunderstorms marching across outback South Australia overnight and into Tuesday morning, while a strong low pressure system can also be seen spinning off the country's south coast.

Help with Farmonline Weather