Tuesday, 1 March 2011 - Monthly Climate Summary for Queensland - Product code IDCKGC14R0
Queensland in February 2011: Category 5 Tropical Cyclone Yasi affected northern Queensland
- Severe Tropical Cyclone Yasi crossed the coast near Mission Beach on the 3rd, then affected the northern parts of the state early in the month
- Major rain events occurred over the southwest districts at the beginning of the month by Ex-Tropical Cyclone Anthony and again from the 13th to the 18th by a deep trough
- A deep trough caused areas of shower and thunderstorm activity over the southeast, central and western districts on the 21st
- Below average February rainfall over most eastern parts of the state while above average over the northwestern
- Slightly above the average February maximum temperatures over the southern districts while below average over the central interior and northern parts
- Similar pattern for the minimum temperatures
The current La Niña event has shown signs of weakening during February. Two February daily rainfall records and one monthly rainfall record occurred over the tropical areas close to the location of the monsoon trough early in the month. One of the daily records happened over the Central Highlands area and this was related to a cut off low near the Central Coast during the 8th and 9th. The state-averaged rainfall total for February was 132.87 mm, slightly above the long-term average of 115.61 mm.
Queensland state-averaged mean temperature for February was 0.02 oC above the long-term (1961-1990) average of 28.19 oC. The state-averaged maximum temperature was 0.14 oC below the long-term mean of 33.99 oC, while the state-averaged minimum temperature was 0.18 oC above the long-term mean of 22.39 oC.
Main Weather SystemAt the beginning of the month, the remnants of Ex-Tropical Cyclone Anthony, as a low, weakened, moved rapidly and reached the southwest corner of the state during the first two days of the month. Rain and thunderstorm areas with moderate falls dominated the southwest of the state during this period.
Tropical Cyclone Yasi formed in the Fijian area of responsibility near the end of January and quickly intensified to from a Category 3 to a Category 4 on the 1st of February then accelerated its movement towards the tropical Queensland coast. Tropical Cyclone Yasi upgraded to a marginal Category 5 system during the morning of the 2nd of February and made landfall on the southern tropical coast near Mission Beach between midnight to 1 am early on the 3rd. Severe Tropical Cyclone Yasi maintained a strong core with damaging winds and heavy rain, tracking westwards across the northern parts of the state and finally weakened to a tropical low near Mount Isa around 10pm on the 3rd. A barograph at the Tully Sugar Mill recorded a minimum pressure of 929 hPa as the cyclone eye passed over the suggesting wind gusts of about 285 km/h were possible. Significant wind damage was reported between Innisfail and Townsville. A 5 metre tidal surge was observed at the DERM storm tide gauge at Cardwell. Widespread rain areas with moderate to heavy rainfalls had remained over the northern parts of the state during the 4th and 5th as the Ex-Tropical Cyclone Yasi moved into the NT as a low pressure system.
On the 5th and 6th, a middle to upper level trough over the western Coral Sea moved into eastern Queensland, leading to an enhanced area of rain showers and thunderstorms over the central districts and into the Wide Bay and Burnett district. Showers then eased over the shoutheast of the state.
A surface trough over the southern interior on the 7th shifted towards the northeast and merged with a cut off low near the central coast. As a result, scattered showers and thunderstorms over the southern interior parts of the state on the 7th were pushed over the southeast o the state, the Capricorn Coast and the Wide Bay areas , with some moderate to heavy falls during the 8th and 9th.
On the 10th, a high over the Tasman Sea had extended a ridge across the southeast of the state. Fine weather conditions were dominated the southeastern parts of the state over the following days while some isolated showers persisted along the southeast coast.
A deep and slow moving trough remained over the southwestern border area during the 13th to 18th and produced scattered showers and thunderstorms with some moderate to heavy falls over the southwestern and western regions.
From the 13th to 16th, an upper low over the Queensland central coast maintained unstable conditions along the coast and adjacent inland parts with some showers and thunderstorms over the area.
A deep surface trough entered into the southwestern districts on the 19th and triggered scattered showers and thunderstorms over the southern and southwestern districts on the 21st. This trough pushed the scattered showers and thunderstorms over the southeast quadrant and into most central and northwestern parts of the state on the 22nd.
Rain areas and storm activity persisted over the northern parts of the state, particularly over the Cape York Peninsula, for the rest of the month due to the monsoon trough over the northern tropics. Fine weather conditions dominated the southern and most of the central parts of the state during this period, apart from some very isolated showers over the southeast.
Tropical Cyclone Yasi
Tropical Cyclone Yasi formed in the Fijian area of responsibility near the end of January and quickly intensified to from a Category 3 to a Category 4 on the 1st of February before accelerating towards the tropical Queensland coast. Yasi upgraded to a marginal Category 5 system in the morning of the 2nd of February and made landfall on the southern tropical coast near Mission Beach between midnight to 1 am early on the 3rd of February. Severe Tropical Cyclone Yasi maintained a strong core with damaging winds and heavy rain, tracking westwards across the northern parts of the state and finally weakened to a tropical low near Mount Isa around 10pm on the 3rd of February.
Yasi was one of the most powerful cyclones to have affected Queensland since records commenced. Previous cyclones of a comparable measured intensity include the 1899 cyclone Mahina in Princess Charlotte Bay, and two cyclones of 1918 at Mackay (January) and Innisfail (March). More details please refer to the Report of Severe Tropical Cyclone Yasi.
During the February, rainfall totals were below the long-term averages over most parts of the southeastern parts of the state, the central interior and the western half of the Cape York Peninsula. Areas with total rainfalls very much below the average (decile 10) were over parts of the eastern Darling Downs, the Central Coalfields and the southwestern parts of Cape York Peninsula.
The wettest overall was Bellenden Ker Top Stn with 2298.0 mm, followed by Bellenden Ker Bottom Stn with 1590.0 mm, then Daintree Village with 1434.0 mm.Some sites had their highest total February rainfall on record. Some sites had their highest total February rainfall for at least 20 years. Some sites had their lowest total February rainfall on record. Some sites had their lowest total February rainfall for at least 20 years.
The wettest single day was at Hawkins Creek with 464.0 mm on the 3rd, followed by Woolshed with 314.2 mm on the 3rd, then Paluma Ivy Cottage with 310.0 mm on the 4th.Some sites had their highest February daily rainfall on record. See a map of total rainfall. See a map of rainfall deciles.
The February mean maximum temperatures were 1 to 2 oC below their long-term averages over the southern districts, most of the central coast, the western parts of the central interior, and the western half of the Cape York Peninsula. For the eastern parts of the central interior and most of the central coast, their maxima were 1 to 2 oC below the long-term means and 2 to 4 oC below average over the northwestern districts.
The February mean minimum temperatures were near or 1 oC above the long-term means over the southern districts, along the central coast as well as the southwestern parts of the Cape York Peninsula. Particularly, about 1 to 3 oC above the means near the southern border areas. For most northern and central interior parts, the monthly mean minimum temperatures were near or 1 oC below the long-term means.
The warmest on average was Birdsville Airport with 32.8 °C, followed by Bedourie Police Station with 31.7 °C, then Boulia Airport with 30.7 °C.
The coolest on average was Applethorpe with 21.2 °C, followed by Stanthorpe Leslie Parade with 21.9 °C, then Jimna Forestry with 22.4 °C.
The hottest day was at Birdsville Airport with 42.5 °C on the 19th, followed by Bedourie Police Station with 42.1 °C on the 1st, then Birdsville Airport with 41.8 °C on the 18th.
The warmest days on average were at Birdsville Airport with 39.3 °C, followed by Bedourie Police Station with 38.6 °C, then Winton Airport with 37.9 °C.
The coolest days on average were at Maleny Tamarind St with 26.4 °C, followed by Applethorpe with 26.8 °C, then Jimna Forestry with 27.0 °C.
The coldest day was at Applethorpe with 19.9 °C on the 8th, followed by Stanthorpe Leslie Parade with 20.3 °C on the 8th, then Toowoomba Airport with 20.5 °C on the 8th.See a map of mean maximum temperatures. See a map of maximum temperature anomalies.
The coldest night was at Stanthorpe Leslie Parade with 8.7 °C on the 24th, followed by Applethorpe with 9.0 °C on the 24th, then Applethorpe with 11.2 °C on the 23rd.
The coolest nights on average were at Applethorpe with 15.5 °C, followed by Stanthorpe Leslie Parade with 16.2 °C, then Warwick with 17.5 °C.
The warmest nights on average were at Birdsville Airport with 26.2 °C, followed by Coconut Island and Sweers Island both with 25.2 °C.
The warmest night was at Birdsville Airport with 30.2 °C on the 19th, followed by Birdsville Airport with 29.7 °C on the 1st, then Birdsville Airport with 29.5 °C on the 3rd.Some sites had their lowest February mean daily minimum temperature for at least 20 years. See a map of mean minimum temperatures. See a map of minimum temperature anomalies.
The strongest wind gust was at Willis Island with 206 km/h on the 2nd, followed by Lucinda Point with 185 km/h on the 2nd, then South Johnstone Exp Stn with 130 km/h on the 3rd.
|Extremes in February 2011|
42.5 °C at Birdsville Airport on the 19th|
42.1 °C at Bedourie Police Station on the 1st
41.8 °C at Birdsville Airport on the 18th
|Warmest days on average||
39.3 °C at Birdsville Airport|
38.6 °C at Bedourie Police Station
37.9 °C at Winton Airport
|Coolest days on average||
26.4 °C at Maleny Tamarind St|
26.8 °C at Applethorpe
27.0 °C at Jimna Forestry
27.0 °C at Kairi Research Station
19.9 °C at Applethorpe on the 8th|
20.3 °C at Stanthorpe Leslie Parade on the 8th
20.5 °C at Toowoomba Airport on the 8th
8.7 °C at Stanthorpe Leslie Parade on the 24th|
9.0 °C at Applethorpe on the 24th
11.2 °C at Applethorpe on the 23rd
|Coolest nights on average||
15.5 °C at Applethorpe|
16.2 °C at Stanthorpe Leslie Parade
17.5 °C at Warwick
|Warmest nights on average||
26.2 °C at Birdsville Airport|
25.2 °C at Coconut Island
25.2 °C at Sweers Island
30.2 °C at Birdsville Airport on the 19th|
29.7 °C at Birdsville Airport on the 1st
29.5 °C at Birdsville Airport on the 3rd
|Warmest on average overall||
32.8 °C at Birdsville Airport|
31.7 °C at Bedourie Police Station
30.7 °C at Boulia Airport
|Coolest on average overall||
21.2 °C at Applethorpe|
21.9 °C at Stanthorpe Leslie Parade
22.4 °C at Jimna Forestry
|Wettest overall||2298.0 mm at Bellenden Ker Top Stn|
1590.0 mm at Bellenden Ker Bottom Stn
1434.0 mm at Daintree Village
464.0 mm at Hawkins Creek on the 3rd|
407.0 mm at Zattas Alert on the 3rd
314.2 mm at Woolshed on the 3rd
|Highest wind gust||
206 km/h at Willis Island on the 2nd|
185 km/h at Lucinda Point on the 2nd
130 km/h at South Johnstone Exp Stn on the 3rd
|Record highest February daily rainfall|
Highest daily rainfall
in February 2011 (mm)
|Lockhart River Airport||308.6||on the 11th||247.4||on the 4th in 1982||55|
|Theodore||170.0||on the 9th||132.0||on the 27th in 1997||44|
|Daintree Village||276.0||on the 25th||247.8||on the 15th in 1977||32|
|Record highest total February rainfall|
for February 2011 (mm)
|Mossman South Alchera Drive||1191.8||1005.4||in 2000||104||478.2|
|Lockhart River Airport||811.2||783.0||in 1967||55||396.1|
|Daintree Village||1434.0||993.7||in 1994||31||599.9|
|Cairns Severin St||1077.2||928.4||in 1994||29||475.3|
|Highest total February rainfall for at least 20 years|
for February 2011 (mm)
Most recent February
at least this wet
|Croydon Township||401.6||444.0||in 1967||44||181.0|
|Mount Isa Aero||237.4||240.0||in 1991||20||104.9|
|Mount Isa Mine||251.8||276.4||in 1991||20||92.9|
|Record lowest total February rainfall|
for February 2011 (mm)
|Cardwell Marine Pde||1.0||36.3||in 1905||140||465.6|
|Haden Post Office||4.2||5.0||in 1974||85||92.5|
|Pormpuraaw Township||29.0||107.2||in 1983||53||383.9|
|Capalaba Water Treat||21.0||37.4||in 2005||40||154.0|
|St George||0.0||4.5||in 1983||38||54.0|
|Hinze Dam||19.4||20.0||in 2002||36||200.8|
|Dalby Airport||8.8||11.2||in 2005||20||83.9|
|Lowest total February rainfall for at least 20 years|
for February 2011 (mm)
Most recent February
at least this dry
|Wallangarra Post Office||0.4||0.0||in 1902||108||84.6|
|Moogerah Dam||18.2||1.6||in 1926||77||128.3|
|Glenmorgan Post Office||8.0||7.4||in 1974||37||71.4|
|Meandarra Post Office||12.0||9.2||in 1974||36||64.6|
|Mitchell Post Office||7.8||6.6||in 1982||29||71.5|
|Tuan Creek Forest Stn||42.5||8.7||in 1983||28||198.8|
|Yuleba Garden St||15.8||13.0||in 1984||27||75.8|
|Ballandean Post Office||7.8||4.6||in 1989||22||85.0|
|Barakula Forest Stn||15.6||3.8||in 1987||22||87.3|
|Millmerran Post Office||18.0||8.0||in 1989||22||78.2|
|Lowest February mean daily minimum temperature for at least 20 years|
Mean daily minimum
for February 2011 (°C)
Most recent February
at least this cool
|Lockhart River Airport||23.1||22.7||in 1990||21||23.6|
|Summary statistics for February 2011|
|North Peninsula (district 27)|
|South Peninsula (district 28)|
|Lockhart River Airport||30.7||-0.6||35.0||2nd||23.1||-0.5||21.9||1st||811.2||396.1||highest||205%|
|Lower Carpentaria (district 29)|
|Croydon Township||33.1||-1.4||36.2||1st||23.7||-0.2||21.7||20th||401.6||181.0||v high||222%|
|Julia Creek Airport||36.2||0.0||39.8||2nd||23.3||+0.5||20.5||25th||101.4||105.9||average||96%|
|Mornington Island||31.1||-0.7||33.5||10th||24.4||-1.1||22.7||14th||720.8||310.7||v high||232%|
|Mount Isa Aero||33.4||-1.9||37.1||1st||22.6||-0.8||20.7||25th||237.4||104.9||v high||226%|
|Upper Carpentaria (district 30)|
|Richmond Post Office||36.8||+1.1||39.4||19th||23.2||+0.7||19.9||25th||51.1||103.4||average||49%|
|Barron North Coast (district 31)|
|Cairns Aero||30.6||-0.6||33.3||19th||23.7||-0.1||22.4||15th||1023.2||458.4||v high||223%|
|Cooktown Airport||30.2||-1.6||33.7||2nd||23.6||-0.8||21.6||6th||544.0||319.7||v high||170%|
|Kairi Research Station||27.0||-0.5||29.5||21st||19.3||-0.2||17.6||15th||381.6||271.8||high||140%|
|Low Isles Lighthouse||30.5||-1.2||33.0||22nd||25.0||-0.5||23.0||11th||775.4||422.3||v high||184%|
|Walkamin Research Station||28.4||-0.7||31.0||21st||20.3||-0.2||18.4||15th||267.4||253.9||average||105%|
|Herbert North Coast (district 32)|
|South Johnstone Exp Stn||30.2||-0.5||32.8||21st||23.2||+0.5||21.8||17th||980.0||579.4||high||169%|
|East Central Coast (district 33)|
|Collinsville Post Office||32.3||-0.4||34.6||20th||21.2||-0.7||18.3||24th||96.2||163.8||average||59%|
|Hamilton Island Airport||29.2||30.3||22nd||24.6||22.1||11th||303.0||318.4||average||95%|
|Samuel Hill Aero||30.0||-0.3||33.8||21st||22.4||+0.4||18.3||27th||280.0||362.3||average||77%|
|St Lawrence Post Office||31.7||+0.3||33.5||21st||22.9||+0.5||20.1||12th||214.8||199.8||average||108%|
|Yeppoon The Esplanade||29.6||+0.3||31.2||8th||23.9||+0.2||21.2||25th||136.0||170.4||average||80%|
|West Central Coast (district 34)|
|Charters Towers Airport||31.5||-1.2||34.4||21st||21.7||-0.7||19.4||24th||146.2||153.0||average||96%|
|Moranbah Water Treatment Plant||32.1||-1.0||35.1||21st||21.5||-0.3||18.6||25th||81.0||100.2||average||81%|
|Central Highlands (district 35)|
|Clermont Sirius St||32.5||-0.5||37.0||21st||20.9||-0.2||17.3||25th||20.6||115.0||low||18%|
|Springsure Comet St||32.7||+0.3||35.6||7th||20.6||+0.1||16.0||25th||36.0||109.9||low||33%|
|Tambo Post Office||33.7||-0.1||37.0||20th||20.0||0.0||15.0||24th||56.4||77.2||average||73%|
|Taroom Post Office||33.5||+0.7||38.0||21st||20.3||-0.1||16.3||24th||68.0||88.4||average||77%|
|Central Lowlands (district 36)|
|Barcaldine Post Office||34.8||+0.3||39.3||21st||22.9||+0.3||19.6||25th||19.3||77.9||low||25%|
|Isisford Post Office||35.5||-0.3||39.6||21st||22.7||+0.3||18.4||25th||70.0||73.7||average||95%|
|Upper Western (district 37)|
|Camooweal Township||33.6||-2.6||36.5||1st||23.4||-0.3||21.3||21st||302.6||94.3||v high||321%|
|The Monument Airport||34.9||-1.7||39.0||1st||23.4||-0.1||21.1||20th||198.0||71.0||v high||279%|
|Winton Post Office||37.3||+1.1||40.8||21st||22.1||-0.9||17.4||26th||74.7||86.6||average||86%|
|Lower Western (district 38)|
|Bedourie Police Station||38.6||+0.7||42.1||1st||24.8||+0.4||22.0||23rd||53.2||35.5||high||150%|
|Windorah Post Office||36.5||-0.1||40.5||19th||24.4||+0.9||21.8||26th||74.1||49.5||high||150%|
|Port Curtis South Coast (district 39)|
|Baralaba Post Office||33.6||+0.2||36.5||21st||21.4||+0.2||18.4||25th||151.8||115.8||high||131%|
|Lady Elliot Island||30.0||+0.9||32.7||5th||24.7||+0.7||21.7||9th||87.6||170.8||average||51%|
|Sandy Cape Lighthouse||29.6||+0.3||32.4||6th||22.7||+0.3||20.2||9th||185.9||169.9||average||109%|
|Moreton South Coast (district 40)|
|Beaudesert Drumley Street||31.2||36.0||20th||19.7||14.1||25th||63.8|
|Beerburrum Forest Station||29.6||-0.1||33.8||20th||20.6||+0.8||16.8||26th||122.6||197.1||average||62%|
|Cape Moreton Lighthouse||28.0||+1.2||30.3||21st||23.0||+1.0||19.5||24th||44.0||156.5||low||28%|
|Double Island Point Lighthouse||29.2||+1.6||32.6||21st||23.3||+0.8||20.3||23rd||65.2||164.7||low||40%|
|Gold Coast Seaway||29.7||+1.2||34.8||20th||22.1||+0.3||18.0||23rd||105.2||173.0||average||61%|
|Hervey Bay Airport||30.4||+0.3||32.7||20th||22.2||0.0||18.3||26th||92.8||141.6||average||66%|
|Logan City Water Treatment Plant||30.2||+0.9||35.2||20th||21.3||+0.9||16.2||25th||107.0||148.2||average||72%|
|Maleny Tamarind St||26.4||-0.1||32.4||21st||19.6||+0.9||15.8||23rd||235.0||314.6||average||75%|
|Nambour DPI - Hillside||29.1||34.2||21st||21.0||17.1||26th||192.2|
|Sunshine Coast Airport||28.9||+0.2||32.9||21st||21.7||+0.4||17.7||26th||223.4||178.7||high||125%|
|Tewantin RSL Park||28.5||+0.1||33.1||21st||22.3||+0.4||18.5||23rd||151.6||210.1||average||72%|
|University of Queensland Gatton||31.2||+0.5||37.4||20th||19.7||+0.7||15.2||25th||47.8||100.4||low||48%|
|East Darling Downs (district 41)|
|Stanthorpe Leslie Parade||27.7||+1.3||34.7||20th||16.2||+0.6||8.7||24th||34.0||85.5||low||40%|
|Texas Post Office||33.9||+1.3||37.7||2nd||19.6||+1.4||13.8||23rd||19.9||76.6||low||26%|
|West Darling Downs (district 42)|
|Miles Constance Street||33.6||+1.0||37.5||20th||20.0||0.0||15.8||23rd||12.2||82.4||v low||15%|
|Maranoa (district 43)|
|Injune Post Office||32.1||-0.1||35.7||20th||18.9||-0.2||14.2||24th||108.0||88.8||average||122%|
|Mitchell Post Office||34.7||+1.8||39.2||20th||19.9||+0.4||15.0||13th||7.8||71.5||low||11%|
|St George Airport||34.6||+1.0||39.9||20th||21.9||+0.8||17.3||22nd||82.4||58.1||high||142%|
|Warrego (district 44)|
|Bollon Mary St||36.2||+1.9||41.0||20th||22.3||+1.3||15.5||22nd||49.7||53.4||average||93%|
|Cunnamulla Post Office||36.5||+1.7||39.9||19th||23.0||+1.3||15.7||22nd||57.8||51.3||average||113%|
|Far Southwest (district 45)|
|Offshore Islands (district 200)|
|Middle Percy Island||28.3||+0.2||29.9||21st||23.3||+0.1||21.7||10th||173.2||272.1||average||64%|
A Monthly Climate Summary is prepared to list the main features of the weather in Queensland using the most timely and accurate information available on the date of publication; it will generally not be updated. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review, usually published in the fourth week of the month.
This statement has been prepared based on information available at 10 am on Tuesday 1 March 2011. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
Averages are long-term means based on observations from
all available years of record, which vary widely from site to site.
They are not shown for sites with less than 9 years of record, as they cannot then be calculated reliably.
The median is sometimes more representative than the mean of long-term average rain.
The Rank indicates how rainfall this time compares with the climate record for the site,
based on the
(very low rainfall is in decile 1, low in decile 2 or 3,
average in decile 4 to 7, high in decile 8 or 9
and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a percentage of the long-term mean.