This video shows you how to use the rainfall summary report.
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Rainfall Statistics Summary Table Report
Once you have logged in and selected ‘Reporting’ in ‘My Network’, select ‘Rainfall Statistics’ to bring up the ‘Rainfall Statistics’ start up page.
Basic Instructions
1. Site Selection
2. Date Range Selection
3. Rainfall Summary Table Interpretation
4. Data Export
5. Printing
1. Site Selection
Begin by selecting the site from the drop down list. Only sites the contain rainfall data will show up in the list. For this example we will select the station Surrey Kwantlen Park.
2. Date Range Selection
Then select the year and the month of interest, from the ‘Year:’ and ‘Month:’ window. For this example we will select ‘2009’ and ‘January’. Next click ‘View Rainfall Statistics’
If you’re having problems with the screen showing up, make sure you allow pop-ups for www.flowworks.com.
3. Rainfall Summary Table Interpretation
In the summary able that appears, the top axis shows the hours of a day and the left axis shows days of the month.
Hourly Rainfall
Boxes that containt a point/period indicate no rainfall during that period. Boxes that contain stars/asterisks indicate that there is no data available or that the data has been invalidated.
Daily Rainfall Totals
Totals for the day are shown in the middle column and a summation of the total rainfall is located at the bottom of this column.
The report will be viewed in metric or imperial, depending on where the station is located
Rainfall Maxima
On the right hand side the rainfall maxima are shown. These represent the maximum given rainfall in a given time period, during the day in question. For example if we look at the 6 hour column on the 6th day, we see a value of 25.8mm. This means that the greatest amount of rain that fell over any given 6-hour period is 25.8mm, and the time immediately to the right represents the time the rainfall event ended.
Rainfall Event Data
When you see a plus sign next to the time it refers to the time on the following day. For example on the 9th day in the 24-hour rainfall event column, the greatest amount of rainfall was 38.0mm. The rainfall event ended at 21:20 on the 10th. This allows you to look at the entire rainfall event because the system is capable of looking at rainfall over 2 calendar days and is not confused by midnight.
At the bottom of the table the monthly values for each duration are shown. For example in the 24-hour period 54.8mm was the greatest rainfall event that occurred in the given month. This way you can easily see a months worth of data to examine if any storm events match a particular minimum criteria that you have.
4. Data Export
You can also copy the values from the table into Microsoft Excel by simply selecting the entire table which is done by clicking on the day cell in the top left hand corner and while holding the mouse button down, drag it to the bottom right corner. The data should now all be highlighted. Copy the data either by going to edit in the toolbar at the top of the screen and choosing copy, or by simply pushing Ctrl + C on your keyboard, while the text is highlighted.
Next bring up Microsoft Excel and click inside the spreadsheet and paste paste the data in either by using the toolbar tool ‘edit’, ‘paste’ or press Ctrl + V on your keyboard.
You will see the table as it appeared in FlowWorks. Execl will recognize the numerical values ready for analysis.
5. Printing
If you want to print directly from the internet explorer window just make sure your settings are on landscape so you’re print out comes out clearly. Or you can print off of excel.
For other instruction please see the instructional video for Rainfall Summary.

