Australian Government Bureau of Meteorology
Western Australia
Marine Wind Warning Summary for Western Australia
Issued at 10:00 AM WST on Friday 06 December 2019
for the period until midnight WST Saturday 07 December 2019
Wind Warnings for Friday 06 December
Strong Wind Warning for the following areas:
Albany Coast and Esperance Coast
Wind Warnings for Saturday 07 December
Strong Wind Warning for the following areas:
Bunbury Geographe Coast, Leeuwin Coast, Albany Coast and Esperance Coast
Cancellation for the following areas:
Perth Local Waters, Perth Coast and Eucla Coast
The next marine wind warning summary will be issued by 4:00 pm WST Friday.
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Check the latest Coastal Waters Forecast or Local
Waters Forecast at http://www.bom.gov.au/wa/forecasts/map.shtml for information on wind,
wave and weather conditions for these coastal zones.
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Forecast
Bayswater (31.9185°S, 115.9128°E, 20m AMSL) set as my default location ›
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My MLA
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Current condition
TODAY25° 42° mostly sunny Chance of rain: 10% Likely amount: < 1mm First
lightLast light Sunrise Sunset 4:35am WST 5:03am WST 7:12pm WST 7:40pm WST NOW34.7° Feels Like: 32.0° Relative Humidity: 23% Dew: 10.5° Wind: NNE 15km/h Gust: 24km/h Rainfall since 9am: 0.0mm Pressure: 1008.1hPa -
Today Weather
BayswaterNow35.6°cFeels Like:32.6°Wind:N 17km/hGusts:26km/hHumidity:22%25°Min42°MaxToday in BayswaterVery hot. Partly cloudy. Slight chance of a shower or a gusty thunderstorm about or east of the hills this afternoon. Winds E/NE 30 to 40 km/h shifting W 20 to 30 km/h in the late morning then becoming W/NW and light in the evening.Tomorrow19°Min27°MaxPartly cloudy. Medium chance of showers, most likely in the afternoon. Winds N/NW 15 to 20 km/h turning W/SW 25 to 35 km/h in the early afternoon. -
Radar
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Popup Radar
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Warnings
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7 day forecast
Today: Very hot. Partly cloudy. Slight chance of a shower or a gusty thunderstorm about or east of the hills this afternoon. Winds E/NE 30 to 40 km/h shifting W 20 to 30 km/h in the late morning then becoming W/NW and light in the evening.
Forecast for Bayswater (31.9185°S, 115.9128°E, 20m AMSL) Fri Sat Sun Mon Tue Wed Thu Summary Minimum 25° 19° 17° 15° 18° 20° 22° Maximum 42° 27° 25° 30° 35° 38° 40° Chance of rain 10% 80% 30% 5% 5% 5% 5% Likely amount < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm UV index Extreme Extreme Extreme Extreme Extreme - - Frost risk Nil Nil Nil Nil Nil Nil Nil 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm Wind speed 28
(km/h)29
(km/h)27
(km/h)35
(km/h)20
(km/h)30
(km/h)17
(km/h)31
(km/h)20
(km/h)29
(km/h)26
(km/h)21
(km/h)28
(km/h)17
(km/h)Wind direction ENE WNW NW W SW SW SE SW ESE SW ESE SSE E SSE Relative humidity 29% 36% 65% 63% 57% 47% 46% 36% 31% 26% 30% 18% 27% 15% Dew point 16°C 18°C 19°C 18°C 13°C 13°C 12°C 13°C 10°C 12°C 10°C 10°C 10°C 9°C -
28 Day Rainfall forecast
Bayswater Rain Forecast
Bayswater 28-day Rainfall ForecastSUNMONTUEWEDTHUFRISAT6
7
HIGH8
9
10
11
12
13
14
LOW15
16
17
LOW18
19
20
21
LOW22
23
24
25
26
27
28
LOW29
30
31
LOWJan 1
2
3
CHANCE OF RAINFALL WITHIN DISTRICTNIL < 25%LOW 25% to 50%MEDIUM 50% to 75%HIGH ≥ 75%Issued Dec 6Issue Notes
The hemispheric long wave pattern has remained stable in recent weeks. There are six main troughs. Currently the most significant troughs are near the longitudes of South Africa, the Indian Ocean, eastern Australia, the south Pacific, South America, and the Atlantic Ocean.
Summary:
Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 14 December to 18 December, 26 December to 30 December, and 4 January to 8 January. Rain events originating in the tropics and moving south are possible about 11 December to 15 December, 29 December to 2 January, and 5 January to 9 January. Over Western Australia the strongest cold fronts should occur about 13 December to 17 December, 27 December to 31 December, and 4 January to 8 January.
Forecast ExplanationThis forecast is produced by a multi-model ensemble consisting of dynamical atmospheric models, which are forced by the latest observed atmosphere, ocean, land and ice conditions. The models are designed to simulate features of the real atmosphere, including the daily movement of long and short wave patterns in the Southern Hemisphere.
The future probability of rain in each district is estimated using output from the multi-model ensemble, combined with historical information about the difference between the model forecasts and observed rainfall.
In this deterministic framework the skill of the forecast tends to decrease with time, however the forecasts are updated daily to provide the latest estimates of rainfall probability out to 28 days.
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12 Month Rainfall Forecast
Bayswater Rain Forecast
Bayswater 12-month Rainfall ForecastDecJanFebMarAprMayJunJulAugSepOctNov20192020685756445829105012 - 34 - 78 - 910Well below normalBelow normalNear normalAbove normalWell above normalIssue Notes - Issued Nov 8
ENSO status: Neutral IOD status: Positive Sea surface temperatures (SSTs) across the equatorial central Pacific warmed up slightly over the past few weeks. As a reflection, the Nino3.4 index lingered between 0.5 and 0.7 throughout the month of October. The Southern Oscillation Index (SOI) recorded a value of -5.6 during the past month. The current outlook consensus suggests warmer than average SSTs will persist across the equatorial Pacific Ocean through the coming months, but remaining within neutral values. Five out of eight international models maintain a warmer than average Pacific Ocean through the end of 2019 and first quarter of 2020, however, none of these reaching El Nino thresholds. The IRI ENSO forecast continues to suggest less than 40% of another El Nino developing over the next 12 months, with a neutral ENSO the most likely outcome. To the west of Australia, the Indian Ocean Dipole (IOD) remains strongly positive, with the highest positive value since the early 2000s. All six international models maintain a strong positive event until December. In terms of rainfall, there is little variation to the outlook issued last month. The climate outlook for October continues to favour below average rainfall for most of Australia, in particular the eastern half of the continent. During Positive IODs, central and southeastern Australia tend to see a reduction in rainfall during spring, due to a reduction of moisture streaming from the northwest. For northern Australia, the current outlook is for a late onset of the wet season across the Northern Territory and Queensland. Thus far, Darwin and South Eastern Qld have seen the onset of the wet season this year though a week later than usual. Further south, a negative trend in the Southern Annular Mode (SAM) will continue to enhance frontal activity over the far south during October and early. This is likely to offset the Positive IOD in far southern Victoria and western Tasmania, which could see average-to-above average rainfall during October and early December. Looking further ahead, with no significant signature from ENSO, there are no significant climate drivers tilting the balance towards a drier or wetter summer. The current outlook suggest neutral odds.
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Long range rainfall forecast
Bayswater Rain Forecast
Bayswater 28-day Rainfall ForecastSUNMONTUEWEDTHUFRISAT6
7
HIGH8
9
10
11
12
13
14
LOW15
16
17
LOW18
19
20
21
LOW22
23
24
25
26
27
28
LOW29
30
31
LOWJan 1
2
3
CHANCE OF RAINFALL WITHIN DISTRICTNIL < 25%LOW 25% to 50%MEDIUM 50% to 75%HIGH ≥ 75%Issued Dec 6Issue Notes
The hemispheric long wave pattern has remained stable in recent weeks. There are six main troughs. Currently the most significant troughs are near the longitudes of South Africa, the Indian Ocean, eastern Australia, the south Pacific, South America, and the Atlantic Ocean.
Summary:
Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 14 December to 18 December, 26 December to 30 December, and 4 January to 8 January. Rain events originating in the tropics and moving south are possible about 11 December to 15 December, 29 December to 2 January, and 5 January to 9 January. Over Western Australia the strongest cold fronts should occur about 13 December to 17 December, 27 December to 31 December, and 4 January to 8 January.
Forecast ExplanationThis forecast is produced by a multi-model ensemble consisting of dynamical atmospheric models, which are forced by the latest observed atmosphere, ocean, land and ice conditions. The models are designed to simulate features of the real atmosphere, including the daily movement of long and short wave patterns in the Southern Hemisphere.
The future probability of rain in each district is estimated using output from the multi-model ensemble, combined with historical information about the difference between the model forecasts and observed rainfall.
In this deterministic framework the skill of the forecast tends to decrease with time, however the forecasts are updated daily to provide the latest estimates of rainfall probability out to 28 days.
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Popup - Daily historical
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Past 5 Days
Bayswater Past 5 Days
This MonthMinimum Maximum Rainfall Monday
Dec 0219.3 °C 35.6 °C 0.0 mmTuesday
Dec 0320.6 °C 41.6 °C 0.0 mmWednesday
Dec 0419.4 °C 37.6 °C 0.0 mmThursday
Dec 0519.5 °C 39 °C 0.0 mmFriday
Dec 0625 °C - 0.0 mmLegend -
Almanac
Almanac
Bayswater minimum temp history (31.9185°S, 115.9128°E, 20m AMSL) MAXIMUM TEMPERATURE MINIMUM TEMPERATURE Hottest this month 41.6° 03/12/2019 Coldest this month 13.6° 01/12/2019 Hottest on record 44.2 26/12/2007 Coldest on record 7.9 07/12/2007 Hottest this year 42.1° 20/01/2019 Coldest this year 1.6° 19/05/2019 Long term average 29.1° Long term average 16.3° Average this month 37.3° Average this month 18.5° Hottest December On Record Avg. max. temp. 31.5° 1999 Coldest December on record Avg. min. temp. 13.9° 2005 Bayswater rainfall history (31.9185°S, 115.9128°E, 20m AMSL) RAINFALL Wettest This Month 0.0mm 01/12/2019 Total This Month 0.0mm
0.0 daysLong Term Average 10.1mm 3.6 days Wettest December on record 75.8mm 1999 -
Popup - Radar
Weather Radar for WA
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Year to Date
Bayswater Year To Date
Average Rainfall To Dec 729.4mm 108.8 day(s) Total For 2019 579.8mm 86.0 day(s) Total To This Day 2018 741.6mm 105.0 day(s) Wettest Day 58.0mm Jun23 Lowest Temperature 1.6°C May19 Highest Temperature 42.1°C Jan20 -
Popup - Monthly historical
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Climatology
Bayswater Climatology
Bayswater Long-Term Averages
Long-Term Averages Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann Mean Max (°C) 31.2 31.6 29.6 25.9 22.3 19.4 18.4 19.1 20.3 23.4 26.6 29.1 24.8 Mean Min (°C) 18.1 18.3 16.6 13.8 10.5 8.6 7.7 8.3 9.5 11.5 14.3 16.3 12.8 Mean Rain (mm) 16.7 13.6 20.4 36.3 90.3 126.0 144.5 122.4 87.2 38.6 23.3 10.1 727.1 Mean Rain Days 2.8 2.3 4.6 6.8 11.5 14.9 17.0 15.8 14.8 8.9 5.8 3.6 105.0