Tuesday 23 MAY 2017
 

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National Daily Weather Summary


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Charts and data courtesy Bureau of Meteorology. MTSAT-1R operated by JMA
Noteworthy weather today
significant newsworthy major

The graphics and statistical information on this page fill gradually as they become available, with some not available until the next day. The page is updated every 30 minutes at about 20 and 50 minutes past the hour.

For weather news as it breaks that is tagged and organised, use the links on the Weather and Climate Media Reports page.

Tuesday 23 May 2017

 Unusual May rain event covers eastern Australia from Gulf to Tasmania

A sweeping band of rain that began on Wednesday 18 May in tropical north QLD and the Gulf Country and travelled south to cross four states and the ACT finally exited the East Coast of TAS on Sunday morning after taking over four days to make the journey. What makes it notable is the expanse of country it traversed, almost the whole nation from north to south, and this in a month not normally associated with large-scale rain bands or events.

Many people have commented that the warnings and forecasts ahead of the event were overstated, and it is true that in some areas the expected rainfall amounts didn't happen. Yet widespread May one-day rainfall records were broken in the 24 hours to 09.00 on each of 18 May, 19 May, 20 May and 21 May, and many locations had more than their monthly average rain in 24 hours.

BoM Senior Forecaster Scott Williams commented, as the event was beginning, that "it's unusual to get a band that extends right across the country this late, outside the traditional wet season. The average rainfalls in western QLD, western NSW and northwest VIC for May are only about 25 to 40mm, so this event in many places should deliver more than the average monthly rainfall in May." He added that further east, as well as in VIC and TAS which are moving into winter rain in May, amounts are normally heavier anyway. "So the real unseasonal rain with this is the northern parts over inland NSW and QLD in particular."

The BoM rainfall map for the week to 09.00 on 21 May shows the distribution of the rainfall well. Very little rainfall, other than from this system, fell in the week. The map clearly shows the patchy and irregular nature of the rain, which is why some people were commenting that the forecasts had overstated the expected rain. Many of the areas that received heavy falls were under thunderstorms or one of the long, rather thin but long-lasting rainbands that were the main mechanisms for delivering the rain. As a result, while some areas received no real rain to talk about, many from the north to south of the country had their heaviest May rain in decades.

The heaviest rain was on the QLD tropical coast and inland to the Gulf. On and near the coast between Townsville and Mackay, many locations received between 150 and 250mm in the 48 hours to 09.00, Friday 19 May, with the heaviest of the official or hydro recordings 244.6mm at Alva Beach. Bowen Pump Station gauge was not far behind on 220mm and minor flooding was reported in the Don River inland form the city. Over the two days, Townsville recorded 154.8mm (May average 39mm).

Some notable long-term records were broken. Mingela Post Office, in the hills 70km SSW of Townsville, which has continuous rainfall records going back 1899, set a new record on 18 May with 108.0mm, then surpassed that on 19 May with 110.6mm. Other records on 19 May at stations with long histories were Ravenswood, near Mingela, 127.4mm with records back to 1887, Townsville Aero 115.2 (1941), Collinsville 120.4 (1939) and Croydon 118.0 (1889). Croydon's previous record was only 63.5, set in 1956, and its average May rainfall is 7.8mm. For the statisticians, Croydon's median rainfall is a mere 0.4mm.

While the wet weather was winding down in northern QLD on Friday 19 May, rain and thunderstorms were pushing into western NSW and VIC and across to the SE QLD coast. During the day, these spread across much of NSW and VIC with the heaviest rain in a band that spread from SW NSW and NW VIC to the NSW southeast. Even far southeastern SA saw some action with falls over 25mm E and SE of Murray Bridge; Parrakie's 38.0mm was the highest.

While VIC had no rain in record territory, NSW broke many one-day rainfall records over Friday and Saturday with the most significant 56.0mm to 09.00 on Friday 19 May at Gunbar in the far western Riverina (records back to 1949) and 51.2mm (1971) at Berriedale west of Cooma to 9am Saturday 20 May. Canberra had a drenching with 33mm in the city centre to 09.00 Saturday, which triggered emergency crews to prepare sandbags [The Age]. Tuggeranong recorded 52.2mm, its highest May total in a 22-year history, and Mt Ginini, on the Divide west of the Capital, recorded 88mm in the same period. The heaviest falls in SE NSW were on the South Coast where Central Tilba recorded 151.0mm, the highest since it began recording in 2003.

Rain began falling in NW TAS overnight into Saturday 20 May, and by 09.00 had deposited a record 50.2mm in the gauge at Marrawah (records began 1971) and 61.6mm at Smithton, the highest May fall since records began in the town in 1911. During Saturday and into Sunday, the rain spread across NE TAS and Flinders Island and down the East Coast with most locations picking up 50 to over 120mm.

Flinders Island Airport recorded 73.8mm to 09.00 Saturday, its heaviest May fall since 1969, and a further 36.6mm during the day. Notable new records were set in the NE to 09.00 on Sunday 21 May where Fingal recorded 102.0mm (records began in 1888) and Gladstone 83.0mm (1914). The heavy rain in the northeast produced minor flooding in the South Esk River. Only ten emergency callouts were required in the north, but blustery winds helped produce widespread though small power outages [The Advocate].


Records set or equalled today

None known


The day in charts
Surface charts Satellite images Rain & temperatures
4am EST Rainfall -- 24 hours to 9am

Week to 9am | SE AUS detail
10am EST Minimum temperature anomalies

See actual temperatures
4pm EST Maximum temperature anomalies

See actual temperatures
10pm EST Solar Radiation

Summary of observations

For notes on how to interpret the data and quality control issues, see Daily Weather Summary Help.
**S** and **W** precede data flagged by the Bureau as suspicious or wrong
Data is as received at 14:02EST, 24/05/2017.

Major centres
Max
° C
+/- norm
° C
Min
° C
+/- norm
° C
Grass Min
° C
Rain to 9am mm Evaporation to 9am mm Sunshine hours Wind Run to 9am km (24-hour average km/h) Maximum Gust km/h / hour of occurrence
PERTH AIRPORT 17.8 -4.0 12.1 +1.7 10.6 3.8 2.2 0.2 272 (11.3) 21/22
BUNBURY 18.3 -2.9 7.9 -1.4 -- 4.8 -- -- 94 ( 3.9) 26/22
MANDURAH 18.8 -2.5 12.2 -1.4 -- 5.2 -- -- 223 ( 9.3) 24/21
DARWIN AIRPORT 34.5 +2.5 24.0 +1.9 23.3 0.0 4.8 10.6 197 ( 8.2) 41/11
ALICE SPRINGS AIRPORT 29.2 +6.2 13.9 +5.7 -- 0.0 -- -- 312 (13.0) 28/15
WHYALLA AERO 20.7 +0.3 7.3 -1.4 -- 3.0 -- -- 412 (17.2) 34/22
ADELAIDE (KENT TOWN) 19.3 +0.4 12.5 +2.3 -- 1.6 -- -- 158 ( 6.6) 31/13
MOUNT GAMBIER AERO 18.0 +1.9 10.3 +3.0 -- 5.0 -- -- 491 (20.5) --
MOUNT ISA AERO 32.2 +4.4 10.4 -3.4 -- 0.0 -- -- 159 ( 6.6) 44/14
CAIRNS AERO 29.4 +1.8 22.1 +2.2 -- 0.0 -- -- 423 (17.6) 37/03
TOWNSVILLE AERO 28.8 +1.2 22.0 +4.4 -- 1.0 -- -- 333 (13.9) 48/12
MACKAY M.O 25.9 +1.7 20.8 +3.7 -- 0.6 -- -- 506 (21.1) 39/09
ROCKHAMPTON AERO 27.2 +1.2 18.7 +4.6 -- 0.0 -- -- 279 (11.6) 24/10
BUNDABERG AERO 27.2 +2.6 17.3 +3.2 -- 0.6 -- -- 339 (14.1) 26/14
COOLANGATTA 24.6 +1.5 14.4 +0.3 -- 0.0 -- -- 251 (10.5) 24/13
BRISBANE AERO 24.2 +0.7 15.8 +3.0 14.2 0.2 3.6 9.8 277 (11.5) 26/08
TOOWOOMBA AIRPORT 23.2 +3.4 14.2 +4.4 -- 0.0 -- -- 487 (20.3) 37/00
GUNNEDAH RESOURCE CENTRE 23.3 +3.0 11.4 +2.7 8.9 0.0 2.0 -- -- --
PORT MACQUARIE AIRPORT AWS 23.5 +2.1 13.6 +3.2 -- 1.2 -- -- 184 ( 7.7) 22/14
WILLIAMTOWN RAAF 22.8 +2.5 10.8 +0.8 -- 0.0 -- -- 180 ( 7.5) 26/10
ORANGE AGRICULTURAL INSTITUTE 16.1 +1.9 6.1 +1.5 -0.6 0.2 1.5 -- -- --
DUBBO AIRPORT AWS 20.1 +0.2 7.6 +1.1 -- 0.2 -- -- 279 (11.6) 34/02
SYDNEY AIRPORT AMO 24.3 +4.3 15.0 +4.1 12.7 0.0 2.4 8.8 251 (10.5) 26/13
RICHMOND RAAF 23.8 +3.3 11.7 +4.1 -- 0.2 -- -- 56 ( 2.3) 22/15
BELLAMBI AWS 22.9 +3.3 15.6 +2.6 -- 0.0 -- -- 258 (10.8) 31/10
CANBERRA AIRPORT 17.6 -- 1.1 -- -- 0.0 -- -- 90 ( 3.8) 39/16
WAGGA WAGGA AMO 20.4 +3.1 6.0 +0.2 -- 0.0 -- -- 278 (11.6) 26/11
ALBURY AIRPORT AWS 19.6 +2.0 4.4 -1.0 -- 0.0 -- -- 104 ( 4.3) 24/04
MILDURA AIRPORT 21.9 +2.9 11.6 +4.2 -- 7.2 4.2 9.0 365 (15.2) 22/00
TATURA INST SUSTAINABLE AG 18.5 +1.3 10.0 +4.3 -- 0.0 -- -- 303 (12.6) 28/10
BENDIGO AIRPORT 18.0 +1.4 9.5 +4.4 -- 0.2 -- -- 297 (12.4) 21/13
MELBOURNE AIRPORT 18.0 +1.4 13.4 +5.1 11.4 0.0 5.2 4.8 768 (32.0) 59/00
BALLARAT AERODROME 15.8 +2.2 9.0 +3.3 -- 0.0 -- -- 720 (30.0) 39/00
LAUNCESTON (TI TREE BEND) 16.2 +0.4 7.8 +2.8 -- 0.0 -- -- 75 ( 3.1) 34/20
HOBART AIRPORT 18.5 +3.3 10.5 +3.9 4.3 0.0 0.2 2.6 282 (11.8) 35/06
Max
° C
+/- norm
° C
Min
° C
+/- norm
° C
Grass Min
° C
Rain to 9am mm Evaporation to 9am mm Sunshine hours Wind Run to 9am km Maximum Gust km/h / hour of occurrence
Hottest
Highest maximum temperature>Greatest variation above normal maximum Highest minimum temperatureGreatest variation above normal minimum

37.3 WYNDHAM AERO N Kimberley WA
37.0 BRADSHAW N Rivers NT
36.5 DOUGLAS RIVER N Rivers NT
36.3 FITZROY CROSSING AERO W Kimberley WA
36.1 NOONAMAH AIRSTRIP N Rivers NT
36.1 KUNUNURRA AERO E Kimberley WA
36.1 KALUMBURU N Kimberley WA

+7.8 : 33.1 JERVOIS N Plateau NT
+7.8 : 30.2 BREWARRINA HOSPITAL Upper Darling NSW
+7.5 : 30.1 WANAARING POST OFFICE Upper Darling NSW
+7.5 : 31.8 BALLERA GAS FIELD Far SW QLD

28.0 BROWSE ISLAND Islands ISL
27.0 MCCLUER ISLAND N Rivers NT
26.8 CAPE WESSEL Islands ISL
26.5 BLACK POINT N Rivers NT
26.3 COCONUT ISLAND N Peninsula QLD
26.3 WARRUWI AIRPORT N Rivers NT

+8.5 : 17.2 LIGHTNING RIDGE VISITORS INFORMATION CEN Upper Darling NSW
+7.3 : 7.4 LIAWENEE Central Plateau TAS
+7.1 : 13.3 SMITHTON AERODROME N Coast TAS
+7.0 : 14.7 LAVERTON RAAF W Central VIC
+6.6 : 14.3 ESSENDON AIRPORT E Central VIC
+6.6 : 15.0 CRANBOURNE BOTANIC GARDENS E Central VIC

Coldest
Lowest maximum temperatureGreatest variation below normal maximum Lowest minimum temperatureGreatest variation below normal minimum

5.0 MOUNT BULLER Upper NE VIC
6.4 MOUNT HOTHAM Upper NE VIC
6.9 KUNANYI (MOUNT WELLINGTON PINNACLE) Southeast TAS
7.7 MOUNT READ W Coast TAS
8.3 MOUNT BAW BAW W Gippsland VIC

-5.3 : 16.0 GOOSEBERRY HILL Lower West WA
-4.7 : 18.3 GINGIN AERO Lower West WA
-4.7 : 17.6 SWANBOURNE Lower West WA
-4.7 : 16.8 BEVERLEY Cent Wheatbelt WA
-4.6 : 17.9 PERTH METRO Lower West WA

-2.2 COOMA VISITORS CENTRE Goulburn/Monaro NSW
-2.0 THREDBO VILLAGE Snowy Mtns NSW
-1.1 BOMBALA (THERRY STREET) Goulburn/Monaro NSW
-0.7 COOMA AIRPORT AWS Goulburn/Monaro NSW
-0.7 PERISHER VALLEY AWS Snowy Mtns NSW

-7.8 : 2.7 LAVERTON AERO Goldfields WA
-7.7 : 2.9 LEINSTER AERO Goldfields WA
-7.7 : 1.5 EYRE Eucla WA
-7.4 : 2.0 BULGA DOWNS Goldfields WA
-7.2 : 1.0 YEELIRRIE Goldfields WA

Wettest
Sunniest & dullest
Windiest
Highest gusts
Todays highest rainfall totals for the 24 hours to 9am. It includes the top 5 totals nationally followed by all reported falls of 50mm or more.
Highest and lowest recordings of hours of sunshine for the 24 hours to midnight.
Highest wind run totals in kilometres for the 24 hours to 9am (average speed in brackets). All reported runs > =25km/h are shown.
Highest wind gusts in km/h for the 24 hours to midnight followed by the hour in which it occurred. All stations with gusts > 89km/h are shown.
42.0 NYMBOIDA (ARMIDALE ROAD) North Coast NSW
31.2 YARRAS (MOUNT SEAVIEW) MidNorth Coast S NSW
27.0 MILLBANK MidNorth Coast N NSW
26.5 NYMBOIDA (NYMBOIDA RIVER) MidNorth Coast N NSW
23.0 ROMANI ALERT Brisbane/SE Coast QLD

Reports not yet available

945 (39.4) MOUNT READ W Coast TAS
930 (38.8) GRAMPIANS (MOUNT WILLIAM) Wimmera S VIC
925 (38.5) KUNANYI (MOUNT WELLINGTON PINNACLE) Southeast TAS
865 (36.0) NEPTUNE ISLAND W Agricultural SA
859 (35.8) HAMILTON ISLAND AIRPORT Central Coast E QLD
837 (34.9) CAPE LEEUWIN Lower West WA
837 (34.9) WALLAN (KILMORE GAP) N Central VIC
835 (34.8) CAPE SORELL W Coast TAS
822 (34.3) CAPE GRIM N Coast TAS
799 (33.3) CAPE GRIM BAPS (COMPARISON) N Coast TAS
774 (32.3) CAPE WESSEL Islands ISL
768 (32.0) MELBOURNE AIRPORT E Central VIC
763 (31.8) COCOS ISLAND AIRPORT Islands ISL
750 (31.3) CAPE FLATTERY N Coast--Barron QLD
741 (30.9) MOUNT HOTHAM Upper NE VIC
720 (30.0) BALLARAT AERODROME Western Plains VIC
672 (28.0) NORFOLK ISLAND AERO Islands ISL
664 (27.7) MIDDLE PERCY ISLAND Islands ISL
662 (27.6) RUNDLE ISLAND Wide Bay/Burnett QLD
652 (27.2) PORTLAND NTC AWS W Coast VIC
649 (27.0) WILLIS ISLAND Islands ISL
648 (27.0) MINLATON AERO Yorke Pen/Kanga Is SA
640 (26.7) CAPE MORETON LIGHTHOUSE Brisbane/SE Coast QLD
638 (26.6) HAMILTON AIRPORT W Coast VIC
637 (26.5) KING ISLAND AIRPORT King Island TAS
635 (26.5) MCCLUER ISLAND N Rivers NT
627 (26.1) CLEVE AERODROME W Agricultural SA
619 (25.8) COLAC (MOUNT GELLIBRAND) W Coast VIC
618 (25.8) LOW ROCKY POINT W Coast TAS
617 (25.7) LADY ELLIOT ISLAND Wide Bay/Burnett QLD
609 (25.4) HORN ISLAND N Peninsula QLD
606 (25.3) LOW ISLES LIGHTHOUSE N Coast--Barron QLD
83/01 MOUNT READ W Coast TAS
74/14 WALGETT AIRPORT AWS NW Plains W NSW
74/04 LOW ROCKY POINT W Coast TAS
72/13 NEPTUNE ISLAND W Agricultural SA
70/15 KINGSCOTE AERO Yorke Pen/Kanga Is SA
70/06 KUNANYI (MOUNT WELLINGTON PINNACLE) Southeast TAS

Downpours High AWS wind reports
High rainfall for periods of 6 hours or less from AWS and synoptic reports.
IMPORTANT NOTE: Due to a programming error, downpours shown for WA, NT, SA, QLD and ISLANDS between 9 and 10am local times are wrong and should be ignored. The error will be corrected as soon as possible.
Storm force gusts (>89km/h) and 10-minute mean gales (>62km/h) reported by AWSs. Wind direction and mean windspeed are shown in brackets.
WESTERN AUSTRALIA
Lower West
WANNEROO AG STATION
11.2mm in 30 min to 09:30 22.4mm/h
11.2mm in 1 hr to 09:30 11.2mm/h
12.8mm in 1 hr to 10:00 12.8mm/h
SOUTH AUSTRALIA
Lower SE
CAPE JAFFA (THE LIMESTONE)
10.4mm in 1 hr to 18:00 10.4mm/h
NEW SOUTH WALES
Upper Darling
COBAR MO
5.4mm in 3 min to 07:06 108.0mm/h
11.6mm in 1 hr to 07:30 11.6mm/h
11.4mm in 1 hr to 08:00 11.4mm/h
COBAR AIRPORT AWS
14.4mm in 23 min to 08:30 37.6mm/h
18.8mm in 1 hr to 08:30 18.8mm/h
18.8mm in 1 hr to 09:00 18.8mm/h
19.0mm in 3 hr to 09:00 6.3mm/h
Southwest Plains
IVANHOE AERODROME AWS
15.0mm in 17 min to 09:30 52.9mm/h
18.2mm in 1 hr to 09:30 18.2mm/h
18.8mm in 1 hr to 10:00 18.8mm/h
19.0mm in 3 hr to 12:00 6.3mm/h
NW Plains W
WALGETT AIRPORT AWS
1.6mm in 1 min to 14:26 96.0mm/h
NW Plains E
MOREE AERO
7.4mm in 11 min to 18:11 40.4mm/h
17.4mm in 1 hr to 18:30 17.4mm/h
14.2mm in 1 hr to 19:00 14.2mm/h

TASMANIA
W Coast
MOUNT READ : 83( 10/ 63 ) at 02:00