Latest rainfall update for the last few days.

Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD
14May to 18May	8.1	143.6	3.9	99.4	8.2	157.8
02May to 13May	–	135.5	–	95.5	–	149.6
27Apr to 01May	12.0	135.5	7.4	95.5	18.4	149.6
25Apr to 26Apr	–	123.5	–	88.1	–	131.2
20Apr to 24Apr	5.3	123.5	2.4	88.1	5.8	131.2
19Apr	–	118.2	–	85.7	–	125.4
17Apr to 18Apr	4.0	118.2	0.8	85.7	5.0	125.4
16Apr	–	114.2	–	84.9	–	120.4
15Apr	1.0	114.2	1.8	84.9	1.6	120.4
10Apr to 14Apr	–	113.2	–	83.1	–	118.8
09Apr	0.4	113.2	–	83.1	1.2	118.8
07Apr to 08Apr	–	112.8	–	83.1	–	117.6
06Apr	2.7	112.8	3.8	83.1	3.0	117.6
31Mar to 05Apr	–	110.1	–	79.3	–	114.6
28Mar 15:00 to 30Mar	2.5	110.1	0.4	79.3	2.2	114.6
27Mar to 28Mar 15:00	102.0	107.6	72.7	78.9	105.2	112.4
27Feb to 26Mar	–	5.6	–	6.2	–	7.2
26Feb	4.0	5.6	4.5	6.2	3.0	7.2
22Feb to 25Feb	–	1.6	–	1.7	–	4.2
20Feb to 21Feb	–	1.6	0.2	1.7	–	4.2
11Feb to 19Feb	–	1.6	–	1.5	–	4.2
10Feb	0.1	1.6	0.4	1.5	–	4.2
27Jan to 09Feb	–	1.5	–	1.1	–	4.2
25Jan to 26Jan	1.5	1.5	1.1	1.1	4.2	4.2
01Jan to 24Jan	–	–	–	–	–	–
Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD

Rainfall update covering Monday until today. For the manual gauge, the majority, 9.5mm, fell on Monday 27Apr26.

Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD
27Apr to 01May	12.0	135.5	7.4	95.5	18.4	149.6
25Apr to 26Apr	–	123.5	–	88.1	–	131.2
20Apr to 24Apr	5.3	123.5	2.4	88.1	5.8	131.2
19Apr	–	118.2	–	85.7	–	125.4
17Apr to 18Apr	4.0	118.2	0.8	85.7	5.0	125.4
16Apr	–	114.2	–	84.9	–	120.4
15Apr	1.0	114.2	1.8	84.9	1.6	120.4
10Apr to 14Apr	–	113.2	–	83.1	–	118.8
09Apr	0.4	113.2	–	83.1	1.2	118.8
07Apr to 08Apr	–	112.8	–	83.1	–	117.6
06Apr	2.7	112.8	3.8	83.1	3.0	117.6
31Mar to 05Apr	–	110.1	–	79.3	–	114.6
28Mar 15:00 to 30Mar	2.5	110.1	0.4	79.3	2.2	114.6
27Mar to 28Mar 15:00	102.0	107.6	72.7	78.9	105.2	112.4
27Feb to 26Mar	–	5.6	–	6.2	–	7.2
26Feb	4.0	5.6	4.5	6.2	3.0	7.2
22Feb to 25Feb	–	1.6	–	1.7	–	4.2
20Feb to 21Feb	–	1.6	0.2	1.7	–	4.2
11Feb to 19Feb	–	1.6	–	1.5	–	4.2
10Feb	0.1	1.6	0.4	1.5	–	4.2
27Jan to 09Feb	–	1.5	–	1.1	–	4.2
25Jan to 26Jan	1.5	1.5	1.1	1.1	4.2	4.2
01Jan to 24Jan	–	–	–	–	–	–
Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD

Rainfall update covering Monday until today.

Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD
20Apr to 24Apr	5.3	123.5	2.4	88.1	5.8	131.2
19Apr	–	118.2	–	85.7	–	125.4
17Apr to 18Apr	4.0	118.2	0.8	85.7	5.0	125.4
16Apr	–	114.2	–	84.9	–	120.4
15Apr	1.0	114.2	1.8	84.9	1.6	120.4
10Apr to 14Apr	–	113.2	–	83.1	–	118.8
09Apr	0.4 not emptied	113.2	–	83.1	1.2	118.8
07Apr to 08Apr	–	112.8	–	83.1	–	117.6
06Apr	2.7	112.8	3.8	83.1	3.0	117.6
31Mar to 05Apr	–	110.1	–	79.3	–	114.6
28Mar 15:00 to 30Mar	2.5	110.1	0.4	79.3	2.2	114.6
27Mar to 28Mar 15:00	102.0	107.6	72.7	78.9	105.2	112.4
27Feb to 26Mar	–	5.6	–	6.2	–	7.2
26Feb	4.0	5.6	4.5	6.2	3.0	7.2
22Feb to 25Feb	–	1.6	–	1.7	–	4.2
20Feb to 21Feb	–	1.6	0.2	1.7	–	4.2
11Feb to 19Feb	–	1.6	–	1.5	–	4.2
10Feb	0.1	1.6	0.4	1.5	–	4.2
27Jan to 09Feb	–	1.5	–	1.1	–	4.2
25Jan to 26Jan	1.5	1.5	1.1	1.1	4.2	4.2
01Jan to 24Jan	–	–	–	–	–	–
Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD

Rainfall update for today and 09Apr26 (when the gauge wasn’t emptied but recorded).

Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD
15Apr	1.0	114.2	1.8	84.9	1.6	120.4
10Apr to 14Apr	–	113.2	–	83.1	–	118.8
09Apr	0.4	113.2	–	83.1	1.2	118.8
07Apr to 08Apr	–	112.8	–	83.1	–	117.6
06Apr	2.7	112.8	3.8	83.1	3.0	117.6
31Mar to 05Apr	–	110.1	–	79.3	–	114.6
28Mar 15:00 to 30Mar	2.5	110.1	0.4	79.3	2.2	114.6
27Mar to 28Mar 15:00	102.0	107.6	72.7	78.9	105.2	112.4
27Feb to 26Mar	–	5.6	–	6.2	–	7.2
26Feb	4.0	5.6	4.5	6.2	3.0	7.2
22Feb to 25Feb	–	1.6	–	1.7	–	4.2
20Feb to 21Feb	–	1.6	0.2	1.7	–	4.2
11Feb to 19Feb	–	1.6	–	1.5	–	4.2
10Feb	0.1	1.6	0.4	1.5	–	4.2
27Jan to 09Feb	–	1.5	–	1.1	–	4.2
25Jan to 26Jan	1.5	1.5	1.1	1.1	4.2	4.2
01Jan to 24Jan	–	–	–	–	–	–
Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD

Yesterday’s rainfall. As mentioned yesterday, it was a band of rain rather than a front, quite unusual for Perth.

Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD
06Apr	2.7	112.8	3.8	83.1	3.0	117.6
31Mar to 05Apr	–	110.1	–	79.3	–	114.6
28Mar 15:00 to 30Mar	2.5	110.1	0.4	79.3	2.2	114.6
27Mar to 28Mar 15:00	102.0	107.6	72.7	78.9	105.2	112.4
27Feb to 26Mar	–	5.6	–	6.2	–	7.2
26Feb	4.0	5.6	4.5	6.2	3.0	7.2
22Feb to 25Feb	–	1.6	–	1.7	–	4.2
20Feb to 21Feb	–	1.6	0.2	1.7	–	4.2
11Feb to 19Feb	–	1.6	–	1.5	–	4.2
10Feb	0.1	1.6	0.4	1.5	–	4.2
27Jan to 09Feb	–	1.5	–	1.1	–	4.2
25Jan to 26Jan	1.5	1.5	1.1	1.1	4.2	4.2
01Jan to 24Jan	–	–	–	–	–	–
Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD

Severe Tropical Cyclone Narelle only produced another 2.5mm of rainfall from 3pm Saturday 28 April until the end of yesterday; so a total of 104.5mm for the event in total.

Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD
28Mar 15:00 to 30Mar	2.5	110.1	0.4	79.3	2.2	114.6
27Mar to 28Mar 15:00	102.0	107.6	72.7	78.9	105.2	112.4
27Feb to 26Mar	–	5.6	–	6.2	–	7.2
26Feb	4.0	5.6	4.5	6.2	3.0	7.2
22Feb to 25Feb	–	1.6	–	1.7	–	4.2
20Feb to 21Feb	–	1.6	0.2	1.7	–	4.2
11Feb to 19Feb	–	1.6	–	1.5	–	4.2
10Feb	0.1	1.6	0.4	1.5	–	4.2
27Jan to 09Feb	–	1.5	–	1.1	–	4.2
25Jan to 26Jan	1.5	1.5	1.1	1.1	4.2	4.2
01Jan to 24Jan	–	–	–	–	–	–
Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD

The results of the rainfall from Severe Tropical Cyclone Narelle! We had 102.0mm of rain from Friday 27 March (started about 8am) until the main rain event ended, this is today at 3pm. The great part of this rain event has been that it was steady rain over that period, so soaked in with reduced run off.

Any further rainfall the next few days will be reported when the rain event is fully ended. This is a long post today so make sure you check to the bottom.

The digital gauge significantly under reported the amount of rainfall, so to get another comparision the table now includes the readings from the Bureau of Meteorology (BOM) Garden Island gauge [https://www.bom.gov.au/climate/dwo/IDCJDW6046.latest.shtml]. This is several kilometres away, so can also be significantly different at times.

Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD
27Mar to 28Mar 15:00	102.0	107.6	72.7	78.9	105.2	112.4
27Feb to 26Mar	–	5.6	–	6.2	–	7.2
26Feb	4.0	5.6	4.5	6.2	3.0	7.2
22Feb to 25Feb	–	1.6	–	1.7	–	4.2
20Feb to 21Feb	–	1.6	0.2	1.7	–	4.2
11Feb to 19Feb	–	1.6	–	1.5	–	4.2
10Feb	0.1	1.6	0.4	1.5	–	4.2
27Jan to 09Feb	–	1.5	–	1.1	–	4.2
25Jan to 26Jan	1.5	1.5	1.1	1.1	4.2	4.2
01Jan to 24Jan	–	–	–	–	–	–
Date Range	Manual Period	Manual YTD	Digital Period	Digital YTD	BOM Period	BOM YTD

The rain gauge works by first filling the measuring cylinder (about 26mm maximum), then overflowing into the main body. Until this point in the year, we’ve only had small amounts of rain so the overflow hasn’t been needed. Below are the photographs of the five measurements required for the reading.

Below is the BOM’s final tracking map for Severe Tropical Cyclone Narella, a rare cyclone that impacted three states / territories while still a cyclone.

Although the digital rain gauge wasn’t entirely accurate, the graphs show how steady the rainfall was across the 31 hours.

We had some rainfall yesterday! Not much to be true, but a nice summer dampening of the dust.

Date Range	Analogue Period	Analogue YTD	Digital Period	Digital YTD
26Feb	4.0	5.6	4.5	6.2
22Feb to 25Feb	–	1.6	–	1.7
20Feb to 21Feb	–	1.6	0.2	1.7
11Feb to 19Feb	–	1.6	–	1.5
10Feb	0.1	1.6	0.4	1.5
27Jan to 09Feb	–	1.5	–	1.1
25Jan to 26Jan	1.5	1.5	1.1	1.1
01Jan to 24Jan	–	–	–	–
Date Range	Analogue Period	Analogue YTD	Digital Period	Digital YTD

Not sure why the digital rain guage registered on the 20th and 21st of February, definately no clouds about, maybe perched birds shook sensors?

The takeover of Bugs’ parent company Warner Bros was decided today with the outcome going in Paramount’s favour. Given Paramount has gone heavily into debt to secure the deal (which has already had it’s credit rating down graded to ‘junk bond’ status), let’s see how long (years wise) before the company is broken up (if it does finalise). Bugs would have preferred to be part of Netflix.

Ex-Tropical Cyclone Mitchell brought a promise of some rain, but the rain didn’t make it to Rockingham, barely a trace.

Date Range	Analogue Period	Analogue YTD	Digital Period	Digital YTD
01Jan to 24Jan	–	–	–	–
25Jan to 26Jan	1.5	1.5	1.1	1.1
27Jan to 09Feb	–	1.5	–	1.1
10Feb	0.1	1.6	0.4	1.5