Moderate Extreme Weather ● Active
Rip Current Statement issued October 30 at 3:19PM ChST until October 31 at 4:00PM ChST by NWS Tiyan GU, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
* WHAT...Large breaking waves of 10 to 13 feet and dangerous rip
currents expected.
* WHERE...West, north and east facing reefs of Tinian and Saipan.
* WHEN...Until 4 PM ChST Saturday.
* IMPACTS...Breaking waves can sweep people off jetties and docks,
and into dangerous seas. Life-threatening swimming conditions
and beach erosion can be expected. Rip currents can sweep even
the best swimmers away from shore into deeper water.
* ADDITIONAL DETAILS...As TY In-fa moves through the far northern
CNMI, the large, long-period northeast to north swell emanating
from In-fa will maintain hazardous surf along north and east
facing reefs. Seas have begun to slowly subside and will
gradually turn northwest, ending hazardous surf along east
facing reefs and beginning hazardous surf along west facing
reefs this evening. Surf will remain hazardous through
Saturday afternoon. These surf conditions will maintain a high
risk of dangerous rip currents. Although surf will fall below
hazardous levels along east facing reefs, the rip current risk
will remain high.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Tinian; Saipan |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-10-31T06:00:00+10:00 |
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).
View original reportAlso reported by: WMO
This event as JSON · API and licence
Source updated 1 hour ago (Oct 30, 2026 05:21 UTC) · we last heard from WMO Alert Hub (national weather services) 24 seconds ago
On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.
About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Tinian; Saipan
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
When thunder roars, go indoors — lightning risk outdoors, in vehicles, and first aid for strike victims.
Open Lightning Safety Guide →Earlier extreme weather events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
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.