Moderate Heavy Rain ● Monitoring
Heavy Rain Warning - Orange — The headwaters of the Canterbury lakes and rivers, south of Arthurs Pass, New Zealand
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
Expect 170 to 220 mm of rain about the main divide, and 80 to 120 mm within 20 km farther east. Peak rates of 20 to 30 mm/h expected Monday morning and afternoon about the divide. Freezing level about 2600 metres. Note, rain easing from the south late Monday afternoon and evening. Impact: Streams and rivers may rise rapidly. Surface flooding, slips, and difficult driving conditions possible. Chance of upgrading to a Red Warning: Minimal.
Measurements
| Coordinates | -43.5030, 170.4791 |
|---|---|
| Region | The headwaters of the Canterbury lakes and rivers, south of Arthurs Pass |
| Location Precision | polygon |
| Issuing Authority | New Zealand — nz-nms-en |
| Cap Urgency | Future |
| Cap Certainty | Likely |
| Cap Expires | 2026-11-03T00:00:00+13:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
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Source updated 2 days ago (Oct 31, 2026 20:06 UTC) · we last heard from WMO Alert Hub (national weather services) 52 seconds ago
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Official authorities in New Zealand
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More for New Zealand →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Flash flood risk awareness, urban drainage flooding, and staying safe during cloudbursts and monsoon downpours.
Open Extreme Rain & Flash Flood Safety →Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.