Weather Center: Hawaii

Current alerts

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

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NWS alerts checked 03:08Z · 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 03:08Z · Data: NOAA/SPC

SPC storm reports checked 03:05Z · Data: NOAA/SPC

WPC Day 1 outlook issued 01:29Z · 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 / SPC selected outlook: feeds current

NWS warnings: Feed current; checked 03:08Z.

SPC selected outlook: Feed current; checked 03:05Z.

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

Hazard & forecast product

Day 3 carries one combined probability.

This period does not carry the hail view, so the overall risk is shown.

SPC Day 3 categorical outlook, Saturday 31 Oct

Source: SPC

Now, not forecast: Current warnings as of 03:08Z are drawn over the outlook for Saturday 31 Oct, the warnings hatched so the forecast shows through. They are in force now; the outlook is for its own period. Show the forecast alone

Forecast: SPC’s scale

General Thunderstorms not severe

View scale

General Thunderstorms not severe
1 · Marginal Risk (not outlined)
2 · Slight Risk (not outlined)
3 · Enhanced Risk (not outlined)
4 · Moderate Risk (not outlined)
5 · High Risk (not outlined)

SPC Day 3 categorical outlook, valid 31 Oct 12:00Z to 1 Nov 12:00Z, issued 29 Oct 19:27Z · Data: NOAA/SPC. Warnings and watches are as of 03:08Z (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

SPC Day 3 categorical outlook: General Thunderstorms

Briefing details · Where, When, Main hazards

Saturday 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

SPC’s discussion covers the whole country, not Hawaii alone.

SPC Day 3 Convective Outlook narrative, issued 29 Oct 19:28Z · Data: NOAA/SPC

000
ACUS03 KWNS 291928
SWODY3
SPC AC 291927

Day 3 Convective Outlook  
NWS Storm Prediction Center Norman OK
0227 PM CDT Thu Oct 29 2026

Valid 311200Z - 011200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not expected on Saturday.

...Synopsis...
An upper trough in the Northwest will amplify through the day on
Saturday. Within the subtropical jet, a shortwave trough will
continue northeastward towards the Baja Peninsula and will begin to
phase with the upper trough within the Great Basin.

Thunderstorms will be possible from the central/eastern Texas into
the Gulf Coast regions. Weak flow aloft will limit severe potential
with this activity. Additional convection will also occur ahead of
the trough moving into the Great Basin where temperatures aloft will
be cold (-18 to -22 C at 500 mb). While mid-level flow will be
strong in some areas, buoyancy will be too limited for a severe
risk.

..Wendt.. 10/29/2026

$$

SPC’s outlook page

Forecast details

SPC’s categorical outlook rates the coverage and intensity of organized severe storms on five levels, from Marginal (1) to High (5); “Thunderstorms” outlines a 10% or greater chance of thunderstorms and is not a severe category. Each probability is the chance of that hazard within 25 miles of a point during the valid period. An intensity overlay marks where significant severe hazards are more likely should storms occur. An outlook is a forecast; a warning means a storm is happening or imminent. SPC’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.

Flash-flood risk

WPC outlines no excessive rainfall area at this scope. WPC’s Excessive Rainfall Outlook: a separate forecast with its own scale.

View flash-flood risk

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. 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 03:08Z · Data: NOAA/NWS

Since 02:09Z: no change in the warnings.

Warnings 1

Flash flood Hawaii in Hawaii County, HI until 05:00Z Track: Flash Flood Warning, Hawaii in Hawaii 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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