The National Weather Service office in Honolulu has issued a Tropical Storm Warning covering all of Kauai and the island of Niihau, along with the surrounding coastal waters. The warning was issued at 4:57 AM HST on September 6 and covers 10 zones in total: Kauai’s north, south, east, southwest, and mountain regions, Niihau, and the Kauai northwest, windward, and leeward waters plus the Kauai Channel.
A Tropical Storm Warning means that tropical storm conditions – sustained winds of 39 to 73 mph, along with heavy rain – are expected somewhere within the warned area, generally within the next 36 hours. This is a step above a watch: conditions are expected, not just possible.
What residents and mariners may notice
People on Kauai and Niihau should expect strengthening winds, periods of heavy rain, and rough surf, particularly along exposed shores. Mariners in the Kauai Channel and nearby waters should anticipate dangerous seas and should already be back in port or heading there. Power outages, downed tree limbs, and localized flooding on roads are all realistic possibilities during a tropical storm, especially in windward areas and along streams and drainage channels in the mountains.
If you live on Kauai or Niihau, sensible steps right now include: securing or bringing inside loose outdoor items such as furniture, trash cans, and plants; charging phones and battery packs and having flashlights ready in case of outages; and avoiding travel along flood-prone roads, stream crossings, and coastal areas once conditions deteriorate. Visitors should check with their accommodations and airlines, as inter-island travel and harbor operations can be disrupted when a warning is in effect.
Warnings like this are updated as the storm’s track and intensity are refined, so check back with official forecasts through the day for any changes in timing, expected wind speeds, or additional alerts such as flash flood watches. Data for this alert comes from the National Weather Service (NWS) Honolulu office.
Frequently Asked Questions
What should I do right now if I'm on Kauai?
Secure loose outdoor items, charge devices, and make sure you have flashlights, water, and basic supplies on hand before conditions worsen. Stay off the roads and away from the ocean once strong winds and heavy rain begin.
What does a Tropical Storm Warning actually mean?
It means tropical storm conditions – sustained winds of 39 to 73 mph with heavy rain – are expected in the warned area, typically within 36 hours. It is a call to finish preparations, not just monitor.
Is it safe to be out on the water near Kauai?
No. The warning covers the Kauai Channel and all surrounding coastal waters, where seas will become dangerous. All small craft should be in port and secured.
Will the power go out?
Outages are common during tropical storms due to wind bringing down tree limbs and lines, especially on Kauai's windward side and in mountainous terrain. Prepare for the possibility by charging devices and keeping flashlights accessible.
Keep tracking this:
Source: National Weather Service (NWS)
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Sky & Solar Conditions at the Time
Moon: Waning Crescent (24% illuminated), in Cancer.
Notable planetary angles: Sun sextile Moon (59°), Moon square Saturn (91°), Jupiter trine Saturn (121°), Moon conjunct Mars (2°).
Concurrent space weather: planetary Kp index 1.3; strongest recent solar flare: nothing notable.
This is a factual snapshot, not a claim of cause and effect – researchers are divided on whether lunar, planetary or solar factors influence seismic or weather activity. It’s included so readers can track the pattern for themselves over time.
