Weather Center: Hawaii

Current alerts

1 flash flood warning touches Hawaii. 1 flash flood warning (touching Hawaii)

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NWS alerts checked 00:59Z · Data: NOAA/NWS

Sources & update times

SPC Day 1 outlook issued 00:28Z · Data: NOAA/SPC

SPC Day 2 outlook issued 29 Oct 17:29Z · Data: NOAA/SPC

SPC Day 3 outlook issued 29 Oct 19:27Z · Data: NOAA/SPC

SPC discussions checked 00:59Z · Data: NOAA/SPC

SPC storm reports checked 00:55Z · Data: NOAA/SPC

WPC Day 1 outlook issued 29 Oct 15:40Z · Data: NOAA/WPC

WPC Day 2 outlook issued 29 Oct 20:08Z · Data: NOAA/WPC

WPC Day 3 outlook issued 29 Oct 20:08Z · Data: NOAA/WPC

Each feed is judged on its own clock. The masthead’s reading is the site’s publishing health, which is a different thing: a publishing delay does not make a freshly read warning stale, and a fresh check does not make an old outlook newly issued.

NWS warnings / WPC selected forecast: feeds current

NWS warnings: Feed current; checked 00:59Z.

WPC selected forecast: Feed current; checked 00:55Z.

Checked means retrieved, not newly issued. Each graphic retains its issue, observation, initialization or valid time. Site publishing status is separate.

Hazard & forecast product

WPC Day 1 Excessive Rainfall Outlook, Thursday 29 Oct

Source: WPC

Forecast: WPC’s scale

1 · Marginal
2 · Slight

View scale

1 · Marginal
2 · Slight
3 · Moderate (not outlined)
4 · High (not outlined)

WPC Day 1 Excessive Rainfall Outlook, valid 29 Oct 16:00Z to 12:00Z, issued 29 Oct 15:40Z · Data: NOAA/WPC. Warnings and watches are as of 00:59Z (now), not for the outlook’s period.Hawaii is outside this map, which draws the conterminous states; its warnings are listed below.

Everything on the map, as a list

WPC Day 1 Excessive Rainfall Outlook: Marginal and Slight

Briefing details · Where, When, Main hazards

Thursday briefing for Hawaii

Highest anywhere in Hawaii: no outlook here

This is the outlook, a forecast. Warnings in force here are listed above it and outrank it.

SPC and WPC issue outlooks for the lower 48 states only; Hawaii’s warnings are listed with the current alerts.

Where: Hawaii is outside the area SPC’s and WPC’s outlooks cover, the lower 48 states.
Prepare: Hawaii has no SPC or WPC outlook to prepare from; follow its warnings in Current alerts.

Official discussion

WPC’s discussion held was issued 29 Oct 20:13Z, and the map 29 Oct 15:40Z: they are different issuances, so the text is not shown with this map until the matching one is read.

WPC’s outlook page

Forecast details

The chance that rainfall exceeds flash flood guidance within 40 km (25 miles) of a point during the valid period, as WPC defines its categories. Marginal is at least 5%, Slight 15%, Moderate 40% and High 70%. WPC’s categories are separate from SPC’s severe-storm categories, and an outlook category is not a warning: a Flash Flood Warning means flooding is happening or imminent. WPC’s definitions.

Coming days · Hawaii

2026-10-30Severe storms: Outside lower-48 outlook coverageFlash flooding: Outside lower-48 outlook coverage 2026-10-30Severe storms: Outside lower-48 outlook coverageFlash flooding: Outside lower-48 outlook coverage 2026-10-31Severe storms: Outside lower-48 outlook coverageFlash flooding: Outside lower-48 outlook coverage

These are daily outlooks, not arrival times. Days 4–8 retain SPC’s predictability and potential-too-low wording in the dated outlook controls.

Severe storms

Marginal risk (1 of 5) at its highest nationally. SPC’s convective outlook, on its own scale.

View severe outlook

Recent reports

Reporting period: 12Z 29 Oct – 12Z 30 Oct

0 tornado · 0 wind · 0 hail in Hawaii

Preliminary reports: a count of reports, not of storms. None reported is not proof that nothing happened.

View reports: map, table & download

No watches or mesoscale discussions in Hawaii. National context: one other mesoscale discussion is in force outside Hawaii. Watches, discussions and warnings in the Live tracker

Warnings in Hawaii

1 warning touching Hawaii

1 warning touches Hawaii, most urgent first. A warning across a state line is counted here and in the other state.

NWS alerts checked 00:59Z · Data: NOAA/NWS

Since 00:00Z: no change in the warnings.

Warnings 1

Flash flood Maui County, HI until 03:45Z Track: Flash Flood Warning, Maui County, HI

All 1 warning touching Hawaii, with their full text, in the Live tracker

22 warnings elsewhere in the country: the national list.

Not an official warning service. Warnings and watches are the National Weather Service’s, outlooks and reports the Storm Prediction Center’s and the Weather Prediction Center’s (Data: NOAA/NWS, NOAA/SPC, NOAA/WPC). When a warning is issued for you, act on it, and use weather.gov or a NOAA Weather Radio for where you are.

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