The latest update to this website was 410pm Monday (HST)

 

Here are the latest 24-hour precipitation totals (inches) for each of the islands as of Monday afternoon:

4.86  Lower Limahuli, Kauai
1.06  Manoa Lyon Arboretum, Oahu
0.01  Puu Alii, Molokai
0.02  Lanai 1, Lanai
0.17  Hana AP, Maui
0.99  Puu Waawaa, Big Island

The following numbers represent the strongest wind gusts (mph) as of Monday afternoon:

22  Port Allen, Kauai
27  Oahu Forest NWR, Oahu
27  Makapulapai, Molokai
22  Lanai 1, Lanai
35  Na Kula, Maui
25  South Point, Big Island

Hawaii’s Mountains – Here’s a link to the live webcams on the summit of our tallest mountain Mauna Kea (~13,800 feet high) on the Big Island of Hawaii, and atop the Haleakala Crater (~10,023 feet) on Maui. These webcams are available during the daylight hours here in the islands, and at night whenever there’s a big moon shining down. Also, at night you will be able to see the stars, and the sunrise and sunset too…depending upon weather conditions.

 

https://weather.gc.ca/data/satellite/goes_gwdisk11_1070_100.jpg

Big Blue…click twice for largest version

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/tpw/13/GOES18-TPW-13-900x540.gif

Thunderstorms in the deeper tropics…upper level low moving away from Kauai

 

https://www.weather.gov/images/hfo/satellite/Hawaii_IR_loop.gif

 Variable low clouds…along with higher/deeper clouds in the general vicinity 

 

 

https://radar.weather.gov/ridge/standard/HAWAII_loop.gif

https://radar.weather.gov/ridge/standard/PHKI_loop.gif

https://radar.weather.gov/ridge/standard/PHKM_loop.gif

Showers locally 

 

Please open this link to see details on any current Watches, Warnings and Advisories noted above

 

~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Monday comments:  I’m here in Bend, Oregon with my friend Bob Earle.

It’s partly to mostly cloudy here in Bend early this morning. The low temperature was a very chilly 22 degrees.

Bob had his Weather and Climate class at the local college, and asked me to step and speak for an hour about my life as a weatherman, or anything else. It was very fun, especially answering the questions that the students asked! We then went over to The Commons, a coffee and tap room…for a cup of coffee. The sun is out, and the temperature has warmed up to 54.1 degrees, after a light shower early this morning, which a few of the students mentioned seeing a few flakes where they lived.

Here in Bend it’s getting dark so early these days, like right now it’s 515pm and full on dark…under cloudy skies with a temperature of 43.3 degrees.

Weather Wit of the day: November Blizzard – When autumn leaves

Interesting web blog: Mauka Showers – The 10th Anniversary of that Crazy Hurricane Season of 2015

>>> Highest Temperature Sunday, November 2, 2025 – 98 near Glamis, CA
>>> Lowest Temperature Monday, November 3, 2025 – 14 at Dillion, Montana

 

Hawaii’s Broad Brush Weather Overview: A moderate easterly trade wind flow will gradually become more stable tonight and Tuesday, as an area of low pressure west of Kauai moves away. Showers will favor windward slopes, and while most leeward areas will be rather dry, spotty afternoon showers will develop along the Kona slopes of the Big Island. Trade winds will start to weaken on Thursday and will likely be disrupted on Friday, when a passing upper level disturbance is expected to produce isolated interior showers during the afternoon. A weakening front may move down portions of the island chain by the weekend.

Hawaii’s Weather Details: The trade wind flow is slowly stabilizing. as an upper-level low west of Kauai drifts away. This feature triggered some impressive showers on Kauai early Sunday, but a ridge aloft building in from the east is producing increasingly stable conditions. Scant shower activity has been observed over windward areas from Kauai to Molokai, but a small pocket of moisture dropped less than a quarter of an inch of rainfall on windward Big Island and Maui. and fueled a few showers over interior sections of the Big Island. Expect this shower activity to diminish overnight, with light rainfall accumulations over windward slopes.

A moderate and rather stable trade wind flow will prevail Tuesday. High pressure centered overhead will lead to a strengthening inversion that will produce stability, but the departing upper low will send a layer of high clouds over the island chain. The surface ridge north of the state will remain essentially unchanged and generate moderate trade winds. Guidance shows little organized moisture in the trade flow, which points toward modest windward rainfall along with a few afternoon showers across the leeward slopes of the Big Island. Drier and increasingly stable conditions favor a decrease in showers Wednesday.

Trade winds will start to decline on Thursday, as an approaching North Pacific cold front weakens the surface ridge north of Hawaii. The ridge aloft over the islands will hang on through the day, suggesting continued stable conditions and limited rainfall.

Trade winds will likely become disrupted Thursday night and Friday as the front advances. A fast-moving upper-level trough passing over the island chain will lead to some instability, but moisture may be lacking. As a result, daytime sea breezes will likely lead to spotty interior showers Friday afternoon.

The shallow and weakening front may reach Kauai sometime Saturday and drift over other portions of the island chain Sunday. Timing with this feature remains highly uncertain, and the GFS and ECMWF models show the above mentioned upper-level trough lifting to the northeast, with ridging aloft building over the islands during this time. Since the frontal band will be very weak with no upper support, rainfall will likely be confined to windward and north slopes with little threat for flooding.

Fire weather:  Relative humidity values and winds will be below critical fire weather conditions into the weekend. A weak inversion near the Big Island and Maui will strengthen and become better defined near 7,000 feet Tuesday then build down to around 5,000 feet Wednesday.

Here’s a near real-time Wind Profile of the Pacific Ocean – along with a Closer View of the islands / Vog map animation / 8-Day Precipitation model

https://www.weather.gov/images/hfo/graphics/npac.gif 

 

Hawaii’s Marine Environment: A trough and upper level disturbance west of Kauai leeward waters will continue to drift westward, decreasing shower activity statewide. Gentle to fresh trade winds will strengthen slightly into the fresh to locally strong range Tuesday through Thursday. High seas will continue for the northwestern coastal waters, and then decline below Small Craft Advisory levels by tonight. The SCA remains in effect for these waters due higher seas.

The High Surf Advisory was cancelled as the north-northwest swell continues to decline just below advisory levels. Looking into the swell future we see pulses of medium and long period swell energy continuing from the northwest to north direction through much of next week. The next north-northwest moderate swell build into the region starting late Tuesday, peaking by Wednesday, and then declining. A brief, overlapping small long period northwest (320 deg) swell will build in from Wednesday night through Thursday. The next moderate to large, medium period northerly (350-020 deg) swell builds into the region from late Friday, peaking on Sunday above advisory levels, before gradually declining into the first half of the week. Another longer period northwest (320-330 deg) swell arrives in time for the middle part of the week.

Surf along east and south facing shores will remain small. Only slight pulses of long period south swell energy are expected over the next seven-days.



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclone

Tropical cyclone formation is not expected during the next 7-days.

Caribbean Sea:  There are no active tropical cyclone

Tropical cyclone formation is not expected during the next 7-days.

Gulf of America:  There are no active tropical cyclone

Tropical cyclone formation is not expected during the next 7-days.

 

Northeastern Pacific:  There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7 days.

North Central Pacific: There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7 days.

Here’s the link to the National Hurricane Center (NHC)

 

Northwest Pacific Ocean: 

Tropical Cyclone 31W (Kalmaegi)…is located approximately 289 NM southeast of Manila, Philippines

https://www.metoc.navy.mil/jtwc/products/wp3125.gif

 

Southwest Pacific Ocean:  There are no active tropical cyclones

North and South Indian Ocean:  There are no active tropical cyclones

South Indian Ocean: There are no active tropical cyclones

Arabian Sea: There are no active tropical cyclones

Here’s a link to the Joint Typhoon Warning Center (JTWC)

 

>>> Here’s a link to the Pacific Disaster Center’s (PDC Global) Weather Wall website

 

Interesting:  Tracking River Pollution: A Novel Approach to Sampling

River pollution is a major threat to water quality and ecosystems, and understanding pollution sources and how they mix is vital to creating effective pollution management. Alex O’Brien tells us about a project testing a new approach to tracing where the pollution comes from…

I’m part of a team of scientists from UKCEH and the British Geological Survey (BGS) involved in a sampling campaign on the Thames to trial a novel integrated method to river sampling. We’re using this approach to investigate nutrient sources and in-stream processes related to pollution from three sources: combined sewer overflows (CSOs), sewage treatment works (STWs), and agricultural runoff.

The work is part of the NERC-funded large grant ‘SMARTWATER’, which is looking at pollution sources and events, how they impact river water quality in catchments, and how we can better predict and manage them.

Read More at: UK Centre for Ecology & Hydrology

Drone imagery of sampling in action.