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River Alert System and Waterline

As part of our role in keeping communities safe, we offer an automated river level alert system that you can sign up for. This is popular with individuals who have properties at risk of flooding. This page is home to each of the rivers' warning alert levels, further information on all of the individual catchments, and the form to sign up for the alerts. 

River level information is also available via our Waterline service - accessible by calling free phone 0508 4 FLOOD (0508 435 663) and following the voice prompts. 

 

River levels warning alerts at which you can subscribe

 
Site Levels (m) Levels (m) Levels (m) Levels (m) Levels (m) Levels (m) Levels (m)
Kiwitea at Strathspey Farm 1.8 2.1          
Makakahi at Hamua 2 2.5 3 4 4.5    
Makino at Boness Road 3 4          
Makino at Reid Line 1.5 1.7 1.9 2.1      
Manawatu at Hopelands 4.5 5.5          
Manawatu at Moutoa 7 7.5 8.4        
Manawatu at Teachers' College 3 3.5 3.8 4 4.1 4.2 4.8
  4.9 5.5 6 6.5 7.55 8.55  
Manawatu at Upper Gorge 4 5 6 7 8 9 10
  11 12          
Manawatu at Weber Road 4 5.2 6 7      
Mangahao at Ballance 2.4 2.5          
Mangahao at Kakariki 1.8 2.4 2.6        
Mangaone at Milson Line 1.9 3.25 3.5 3.75 4.2    
Mangaroa at Ohura Town Bridge 4.5 5 6 7      
Mangatainoka at Larsons' Road 2 2.3 2.4 2.5 2.8 4  
Mangatainoka at Pahiatua Town Bridge 1.9 2.35 3 3.6      
Mangawhero at Ore Ore 2.2 2.7 2.8 3.2 4.5    
Matarawa at City Branch 1.5 1.8 1.9        
Ohau at Rongomatane 1.2 1.5 1.6 1.8 2 2.2 2.5
  3            
Ohura at Niho Niho 5 6 7        
Ohura at Tokorima 7            
Ongarue at Taringamotu 5 6 7 8      
Oroua at Almadale Slackline 2.3 2.7 2.9 3 3.2 3.5 4.2
Oroua at Kopane Bridge 4.5 5 5.2 6 6.55 6.95  
Pohangina at Mais Reach 2.6 2.9 3.5        
Pohangina at Piripiri 1 1.5 1.8 2 3    
Rangitikei at Mangaweka 3.6 4 4.2 4.5 4.8 5 5.5
  6 6.5 7        
Tamaki Water Supply Weir 1.8            
Tiraumea at Ngaturi 4.5 7 9 11      
Turakina at O'Neills 5 5.5 7        
Turakina at Otairi 4 5          
Whangaehu at Aranui 5 6 7        
Whangaehu at Kauangaroa 6 6.8 7 7.8 8 9 10
  11            
Whanganui at Pipiriki 6 8 10 11 12 13  

 

How the warning system works

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How does the river level warning alert system work?

This brochure explains how the system works, customisation options, and potential scenarios of what could go wrong. 

Subscribe to river level alerts

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How to subscribe to river warning alerts

Download this form to subscribe to our river level warning alerts. You can either print it off, fill it in, scan it and email it back or post it to us using the address on the last page. Alternatively, you can type in the required fields and email it back it us at help@horizons.govt.nz.

If you have any issues, please call our information management team on free phone 0508 800 800.