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Tuesday, 3 April 2007 - Monthly Climate Summary for Northern Territory - Product code IDCKGC12R0

Widespread flooding in the Top End while hot and wet in the south - Northern Territory in March 2007

Heavy rainfall at several locations caused extensive flooding in the Top End mainly due to an active monsoon trough in the area. In the south, the Todd River ran for the fifth time this wet season (fourth for the year). Temperatures were warmer than normal in the central and southern parts of the Territory.


Rainfall

Most of the Northern Territory recorded very much above average rainfall for the month of March 2007. Heavy rainfalls at several locations across the Top End, with some recording their highest on record, caused widespread flooding.

A persistent monsoon trough over northern Australia, with embeded low / tropical cyclones off the west coast of Australia, contributed to above average rainfall across the Territory. As far south as the Alice Springs district good rainfalls were recorded.

Oenpelli, Jabiru Airport AWS, Batchelor Aero AWS and Mango Farm received more than 3 times their monthly average with all recording more than 700 mm of rainfall for the month.

Some sites had their highest total March rainfall on record.


Maximum temperature

Mean monthly maximum temperatures over southern parts of the Territory were above average during March 2007 with some areas up to 2°C higher than normal. In contrast the daily mean maximum temperatures over central NT and the Top End were 1 to 2°C below average.

Some sites had their highest March temperature on record.


Minimum temperature

Mean monthly minimum temperatures over far southwestern parts of the Territory were well above average during March 2007 with some areas reaching 3 to 4°C higher than normal. Minimums were 1 to 2°C above average in some areas of the central Northern Territory and about average in the remainder.

Some sites had their lowest March temperature on record.

Some sites had their warmest March night (highest daily minimum temperature) on record.

Some sites had their highest March mean daily minimum temperature on record.


Further information

NT Climate Services Centre
Bureau of Meteorology
Phone (08) 8920 3819
Email climate.NT@bom.gov.au

Extremes

Hottest day
Highest temperature
43.8°C at Kulgera on the 2nd
and at Wulungurru AWS on the 3rd and 4th
Warmest days on average
Highest mean daily maximum temperature
35.5°C at Brunette Downs
Coolest days on average
Lowest mean daily maximum temperature
30.2°C at Central Arnhem Plateau AWS
Coldest day
Lowest daily maximum temperature
15.7°C at Kulgera on the 28th
Coldest night
Lowest temperature
7.9°C at Alice Springs Airport on the 31st
Coolest nights on average
Lowest mean daily minimum temperature
20.0°C at Kulgera
Warmest nights on average
Highest mean daily minimum temperature
26.6°C at Centre Island AWS
Warmest night
Highest daily minimum temperature
30.3°C at Kidman Springs on the 3rd
Wettest overall
Highest total rainfall
1141.6 mm at Jabiru Airport AWS
Wettest day
Highest daily rainfall
393.4 mm at Jabiru Airport AWS on the 2nd
Highest wind gust
96 km/h at Rabbit Flat on the 5th

Records

Record highest daily rainfall for March 2007
Highest daily rainfall
(mm)
Previous highest Years of
record
Oenpelli
311.2
on the 1st
209.6
on the 6th in 1919
93
Tarlton Downs
101.0
on the 29th
99.6
on the 6th in 1972
47
Black Point
162.2
on the 3rd
129.9
on the 4th in 2000
39
Howard Springs
212.0
on the 4th
184.9
on the 4th in 1969
33
Adelaide River Post Office
244.0
on the 3rd
123.2
on the 4th in 1969
31
Tanumbirini
98.2
on the 17th
93.0
on the 15th in 1989
30
Channel Island
225.0
on the 3rd
194.6
on the 26th in 1941
28
Katherine Aviation Museum
129.8
on the 22nd
128.5
on the 21st in 1971
28

Mango Farm

295.0
on the 3rd
143.6
on the 15th in 1983
22
Elizabeth Valley
190.4
on the 3rd
150.6
on the 10th in 1989

19

Jabiru Airport AWS
393.4
on the 2nd
129.0
on the 10th in 1973
19
Karama
206.5
on the 4th
177.8
on the 22nd in 2006
19
Wagait Beach
279.2
on the 3rd
192.8
on the 2nd in 1997

15

Territory Wildlife Farm
142.5
on the 3rd
113.4
on the 3rd in 1998
14
Watarrka
53.5
on the 21st
47.2
on the 23rd in 2001
14
Territory Grape Farm
41.4
on the 24th
28.8
on the 30th in 1988
13
Thorak Cemetery
240.0
on the 3rd
200.0
on the 2nd in 1998
13
Walker Creek
255.5
on the 3rd
164.0
on the 8th in 1995
12




Record highest total rainfall for March 2007
Total rainfall
(mm)
Previous highest Years of
record
Oenpelli
1106.6
601.8
in 1981
92
Darwin River Dam
657.3
614.5
in 1977
35
Adelaide River Post Office
653.0
580.0
in 1976
32
Humpty Doo Collard Road
686.0
622.2
in 1995
25
Mango Farm
710.6
533.4
in 1983
23
Jabiru Airport AWS
1141.6
590.4
in 1976
19
Leanyer
708.6
662.0
in 2006
17
Elizabeth Valley
642.2
589.0
in 1989
16
Mary River Rangers
562.0
540.1
in 2000
16
Wagait Beach
685.2
624.6
in 1995
15
Territory Wildlife Park
571.5
554.7
in 1995
13
Thorak Cemetery
810.8
759.8
in 1995
13
Walker Creek
741.6
663.2
in 2000
11
Batchelor Aero AWS
702.2
495.8
in 2001
10
Jabiru Council
455.6
443.8
in 1999
10



Record highest temperature for March 2007
Highest temperature
(°C)
Previous highest Years of
record
Curtin Springs
43.3
on the 2nd
43.1
on the 9th in 1993
42
Kulgera
43.8
on the 2nd
42.3
on the 22nd in 1998
26
Timber Creek
42.5
on the 2nd
41.2
on the 6th in 1988
26
Watarrka
42.3
on the 3rd
41.8
on the 1st in 2005
16
Kidman Springs
41.8
on the 2nd
41.3
on the 18th in 1998
11



Record highest mean daily minimum temperature for March 2007
Mean daily minimum
temperature
(°C)
Previous highest Years of
record
Lajamanu AWS
23.4
23.3
in 1973
13
Kidman Springs
25.2
24.7
in 2004
11



Record highest daily minimum temperature for March 2007
Highest daily minimum
temperature
(°C)
Previous highest Years of
record
Victoria River Downs
29.9
on the 3rd
29.1
on the 4th in 1988
38
Kulgera
28.8
on the 3rd
28.5
on the 7th in 1983
26
Kidman Springs
30.3
on the 3rd
28.0
on the 13th in 1998
11



Record lowest temperature for March 2007
Lowest temperature
(°C)
Previous lowest Years of
record
Black Point
21.4
on the 3rd
21.6
on the 10th in 2002
14



Summaries

Summary statistics for March 2007
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean Diff
from
normal
Highest Mean Diff
from
normal
Lowest Total Rank Fraction of
normal
Darwin-Daly (district 14GA)
Batchelor Aero AWS
31.7
−1.2
34.2
8th
23.8
+0.4
21.9
2nd
702.2
highest
329%
Black Point
30.9
−0.4
33.2
9th
25.5
0
21.4
3rd
390.5
high
159%
Bradshaw
33.7
38.5
2nd
24.7
23.0
20th
24.4
Central Arnhem Plateau AWS
30.2
33.4
11th
22.8
21.6
4th
758.6
Channel Point
30.7
−1.0
32.3
29th
24.7
+0.3
23.0
2nd
622.3
high
166%
Darwin Airport
30.9
−0.9
33.2
9th
24.8
+0.3
23.0
5th
680.0
very high
213%
Delamere Weapons Range AWS
33.5
−0.9
40.0
1st
23.9
+0.7
22.0
25th
285.8
Douglas River
32.5
−1.3
34.6
11th
23.9
+0.8
22.4
2nd
374.2
high
165%
Dum In Mirrie AWS
30.9
32.4
31st
25.0
21.8
2nd
528.8
Katherine Aviation Museum
32.9
−1.5
35.1
11th
23.8
+0.6
21.9
31st
475.8
very high
239%
Mango Farm
32.6
−1.4
35.0
8th
23.8
+0.2
22.8
3rd
710.6
highest
330%
McCluer Island AWS
30.6
32.1
15th
25.6
23.2
4th
435.6
very high
206%
Middle Point AWS
31.8
34.6
8th
24.1
22.5
1st
584.2
Oenpelli
32.3
−0.6
34.1
27th
24.5
+0.1
21.4
2nd
1106.6
highest
394%
Pine Creek Council
31.9
34.0
12th
23.7
22.8
4th
531.7
Pirlangimpi AWS
31.1
−0.8
34.3
9th
24.3
+0.3
22.5
6th
351.2
normal
94%
Point Fawcett AWS
30.4
−1.3
32.1
9th
24.8
−0.2
22.8
2nd
371.6
very high
171%
Tindal RAAF AWS
32.9
−1.2
35.0
12th
24.0
+0.9
22.1
31st
338.0
high
199%
Arnhem (district 14BC)
Alyangula Police
31.3
−0.9
35.5
22nd
24.9
+0.3
23.0
10th
444.0
very high
177%
Gove Airport
30.3
−0.9
32.2
14th
24.2
+0.3
22.8
25th
272.0
normal
101%
Groote Eylandt Airport AWS
31.9
34.6
14th
24.4
22.5
10th
405.6
Milingimbi AWS
31.2
33.4
30th
24.7
22.2
1st
351.6
Ngayawili AWS
30.9
32.5
30th
25.2
23.7
2nd
214.2
Warruwi AWS
31.3
−0.1
32.8
11th
25.1
−0.1
22.7
10th
238.0
normal
99%
Roper-Mcarthur (district 14DE)
Borroloola AWS
32.6
−0.8
35.1
11th
24.0
+0.5
20.1
31st
133.0
normal
84%
Bulman AWS
32.6
34.8
28th
23.3
22.2
7th
516.8
Centre Island AWS
32.6
−0.3
34.8
11th
26.6
+0.2
24.0
21st
155.6
normal
58%
Daly Waters AWS
34.7
0
38.2
1st
23.8
+1.3
21.2
31st
142.4
normal
130%
Larrimah
33.2
−0.9
36.4
12th
23.5
+0.9
20.5
31st
290.1
high
190%
McArthur River Mine
34.5
−0.4
37.6
13th
24.5
+1.4
21.8
31st
141.6
normal
99%
Ngukurr
33.5
−0.5
39.0
9th
24.9
+1.0
23.3
17th
206.7
normal
120%
Wollogorang
34.0
−0.4
37.2
13th
23.6
+0.8
21.9
30th
130.7
normal
78%
Victoria (district 14F)
Kidman Springs
34.2
−1.4
41.8
2nd
25.2
+1.9
23.1
25th
301.4
high
233%
Lajamanu AWS
34.4
−0.1
41.1
2nd
23.4
+1.2
19.2
30th
166.0
high
209%
Timber Creek
34.5
−0.9
42.5
2nd
24.5
+0.9
22.7
13th
315.9
high
189%
Victoria River Downs
33.8
−1.2
40.8
2nd
24.7
+1.6
22.0
8th
158.6
high
146%
Wave Hill
34.2
−1.2
41.0
1st
23.9
+1.9
20.6
30th
157.2
normal
131%
Barkly (district 15A)
Brunette Downs
35.5
+0.3
41.2
2nd
23.7
+1.3
15.6
31st
124.0
high
226%
Tennant Creek Airport
34.3
0
39.3
1st
23.7
+0.5
14.7
31st
111.2
high
200%
Alice Springs (district 15B)
Ali Curung
35.0
−0.4
40.5
3rd
22.0
+1.0
12.1
31st
54.4
high
168%
Alice Springs Airport
33.8
+1.1
42.0
2nd
20.7
+3.3
7.9
31st
57.6
high
183%
Arltunga
32.8
40.1
2nd
20.1
10.4
31st
143.3
very high
386%
Curtin Springs
34.6
+0.9
43.3
2nd
20.9
+2.6
11.0
30th
60.4
high
213%
Jervois
35.3
+0.7
41.2
3rd
20.8
+1.6
11.6
31st
43.6
high
144%
Kulgera
33.0
+0.9
43.8
2nd
20.0
+2.0
9.0
31st
54.1
high
169%
Papunya
34.4
41.5
3rd
21.6
11.5
31st
84.8
high
175%
Rabbit Flat
33.9
−2.1
41.0
2nd
22.3
+0.8
17.1
26th
133.0
high
188%
Territory Grape Farm AWS
34.6
+0.4
40.4
3rd
20.5
+1.0
12.7
30th
91.2
very high
581%
Watarrka
33.4
−1.3
42.3
3rd
22.0
+1.3
11.5
31st
137.8
very high
610%
Wulungurru AWS
34.5
43.8
4th
23.1
16.0
29th
252.0

Notes

This statement has been prepared based on information available at 4 pm on Monday 2 April 2007. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Normals are long-term means based on observations from the years 1800 to 2006. They are not shown for sites with less than 10 years of record in that time, as they cannot then be calculated reliably.
The median is sometimes more representative than the mean of "normal" rain.

The Rank indicates how rainfall this time compares with the climate record for the site, based on the decile ranking (very low rainfall is in decile 1, low in decile 2 or 3, normal in decile 4 to 7, high in decile 8 or 9 and very high is in decile 10).
The Fraction of normal shows how much rain has fallen this time as a percentage of the long-term mean.


Further information

NT Climate Services Centre
Bureau of Meteorology
Phone (08) 8920 3819
Email climate.NT@bom.gov.au