The latest update to this website was at 1030am Monday (HST)

 

>>> Please be aware as we move through the last part of this inclement weather event, the power or internet connectivity could go out, and I won’t be able to do the normal updating of this web site. If this does happen, I’ll begin updating after the power returns.

 

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

4.49  Mount Waialeale, Kauai
4.10  Moanalua RG, Oahu
6.32   Puu Alii, Molokai
0.99   Lanai City, Lanai
19.52  Waikamoi Treeline, Maui!
24.11  Laupahoehoe, Big Island!

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

32  Lihue, Kauai – NE
61  Oahu Forest NWR, Oahu – ESE
38  Molokai AP, Molokai – NE
44  Lanai 1,  Lanai – NE
48  Kealaloloa Rg, Maui – NE
54  Puuloa, Big Island – NE

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

 The cold front has become a trough 

 

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

Cloudy across the state 

 

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

Rain showers…some are heavy 

 

https://www.weather.gov/wwamap/png/hfo.png

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

~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Monday comments:  I’m here at home in upper Kula, Maui

It’s cloudy and raining early this morning, with off and on gusty winds, and a low temperature of 55.5 degrees at my place, and the relative humidity is 84%.

1030am, the rains have stopped and the wind is calm here in upper Kula, although showers, some heavy, continue to fall elsewhere.

>>> All State offices and all public schools are closed today, February 9th due to severe weather

 

Weather Wit of the day: Avalanche – Runaway Terrain

 

>>> Highest Temperature Sunday, February 8, 2026 – 90 at Yorba Linda, CA
>>> Lowest Temperature Monday, February 9, 2026 – minus 27 at Watertown, NY

 

I suggest that we all, at least those of us who live in Hawaii, keep our devices charged up, in case the power goes out as the winds and rains continue

 

Hawaii’s Broad Brush Weather Overview…as of 903am Monday: Wet and windy weather will continue across the islands today, with conditions gradually improving this afternoon into tonight as winds ease up some, and rainfall coverage and intensity diminishes. A more typical trade wind pattern will then follow Tuesday through late this week, although it will remain rather breezy.

 

Flood Watch through this afternoon for Niihau-Kauai Leeward-
Kauai Mountains-Waianae Coast-Oahu North Shore-Olomana-Central
Oahu-Waianae Mountains-Lanai Mauka-Kahoolawe-Maui Windward West-
Maui Leeward West-Haleakala Summit-Kona-Kohala-Big Island
Interior-Kauai North-Kauai East-Kauai South-East Honolulu-
Honolulu Metro-Ewa Plain-Koolau Windward-Koolau Leeward-Molokai-
Lanai Windward-Lanai Leeward-Lanai South-Maui Central Valley
North-Maui Central Valley South-Windward Haleakala-Kipahulu-
South Maui/Upcountry-South Haleakala-Big Island South-Big Island
Southeast-Big Island East-Big Island North.
High Wind Warning until 6pm this evening for Niihau-Kauai
Leeward-Kauai Mountains-Waianae Coast-Oahu North Shore-Olomana-
Central Oahu-Waianae Mountains-Lanai Mauka-Kahoolawe-Maui
Windward West-Maui Leeward West-Kohala-Big Island Interior-Kauai
North-Kauai East-Kauai South-East Honolulu-Honolulu Metro-Ewa
Plain-Koolau Windward-Koolau Leeward-Molokai-Lanai Windward-
Lanai Leeward-Lanai South-Maui Central Valley North-Maui Central
Valley South-Windward Haleakala-Kipahulu-South Maui/Upcountry-
South Haleakala-Big Island South-Big Island Southeast-Big Island
North.

High Surf Warning until 6am Tuesday for Olomana-Kahoolawe-
Maui Windward West-Kauai East-East Honolulu-Koolau Windward-
Molokai Windward-Molokai Southeast-Windward Haleakala-Kipahulu-
South Haleakala-Big Island Southeast-Big Island East-Big Island
North.

Winter Storm Warning until 6pm this evening for Big Island Summits.

Gale Warning until 6pm this evening for all Hawaiian waters-

 

Hawaii’s Weather Details…as of 343am Monday:  Currently at the surface, a trough of low pressure is located a few hundred miles southwest of the state, while a 1036 millibar high is centered well to the north of the islands. The gradient remains strong locally, with breezy to windy conditions affecting much of the state. The strongest winds continue to be over and downwind of the higher terrain, through valleys, and in other local acceleration areas, where frequent wind gusts of 40 to 50 mph have been occurring overnight.

Infrared satellite imagery shows overcast conditions across the islands. Radar imagery shows widespread rain from Oahu eastward, with lesser shower coverage over Kauai. The heaviest rainfall continues to focus over the windward portions of the islands. The main short term focus continues to revolve around the heavy rain and damaging wind potential today.

The overall forecast appears on track, with deep moisture remaining over the islands in association with the old dissipated cold front. This in combination with divergence aloft and strong winds aiding orographic lift, will continue to support areas of heavy rain primarily over windward slopes and coasts, along with a slight chance for a rumble or two of thunder. The Flood Watch remains in effect through 6pm this evening.

The wind forecast is a bit more uncertain, as there has been a decrease in the gustiness overnight. You can still expect a windy day across the islands however, as the gradient remains tight between a 1039 millibar high well north of the state, and a weak developing low several hundred miles southwest of the islands. As a result, the High Wind Warning remains in effect through 6pm this evening as well.

Finally, the Winter Storm Warning for the Big Island summits remains in effect through 6pm this evening for elevations above 12,000 feet.

Conditions are expected to begin improving by late this afternoon, with winds easing up some, and rainfall diminishing in coverage and intensity as well. It will remain breezy enough tonight however, that a Wind Advisory may be needed for some of the typically windier areas once the High Wind Warning is cancelled.

More typical, but breezy, trade wind weather will follow Tuesday through Friday, with showers favoring windward and mountain areas. The latest models show the potential for another round of heavy rainfall next weekend. Since this has been a recent development in model trends showing a return of unsettled weather, we should wait for some more run to run continuity, before trending the forecast away from a trade wind pattern.

                                                                                                                                                 

Here’s a near real-time Wind Profile of the Pacific Ocean – Zoom Earth – 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 low pressure system southwest of the Hawaiian Islands slowly drifts westward, as a strong high north of the state slowly drifts eastward. Wind speeds will weaken slightly through the day, as both large scale pressure systems begin to move away from the island chain. Strong to gale force winds remain in the forecast for both coastal and offshore waters, and a Gale Warning remains in effect through the afternoon hours for all Hawaiian waters. Fresh to locally strong easterly trade winds will linger in the forecast for all coastal waters with slight downward trends each day to Small Craft Advisory levels Tuesday into Thursday.

These strong to gale force trade winds will bring large and very rough surf along east facing shores lasting through tonight. A High Surf Warning remains in effect for exposed east facing shores through tonight. Surf heights along east facing shores will decline to advisory levels by Tuesday morning, then decline below advisory thresholds, yet remain rough from Tuesday night onward as trade winds ease across the region.

Small to moderate northwest swells will pass through the islands into the first half of next week. These smaller swells will keep surf heights on the smaller side. Looking into the extended forecast from the middle to the end of next week, we see a similar swell picture with no larger northwesterly swells for the foreseeable future.

Surf along south facing shores will remain small with some small background south swell energy expected over the next few days. Select southern exposures exposed to the wind swell will likely see some larger waves as well.

 

WATCH: Heavy rain and high winds in Hawaii



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

Caribbean Sea:  There are no active tropical cyclones

Gulf of America:  There are no active tropical cyclones

 

Northeastern Pacific:  There are no active tropical cyclones

North Central Pacific: There are no active tropical cyclones

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

 

Northwest Pacific Ocean:  There are no active tropical cyclones

Southwest Pacific Ocean:  There are no active tropical cyclones

North Indian Ocean:  There are no active tropical cyclones

 

South Indian Ocean:  

Tropical Cyclone 20S (Mitchell)…is located approximately 181 NM south of Learmonth, Australia – Final Warning

https://www.metoc.navy.mil/jtwc/products/sh2026.gif

 

Tropical Cyclone 21S (Gezani)…is located approximately 172 NM north-northwest of St Denis

https://www.metoc.navy.mil/jtwc/products/sh2126.gif

 

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:  Hot Takes: How the Science of Saltwater-Tolerating Plants Could Protect Coastlines

Rising sea levels along coastlines not only threaten populations, but also pose a danger to agricultural crops, which may be damaged by surging amounts of saltwater. Researchers have, in response, sought to improve salt-tolerance in plants.

“This work reveals that just a few simple cell traits are critical to tolerating the extreme conditions experienced by some of the most distinctive and resilient plants in the world,” says Adam Roddy, an assistant professor in NYU’s Department of Environmental Studies.

Roddy is an author on a new study that focuses on mangrove trees—plants that grow along tropical and subtropical coastal areas where saltwater is abundant. The results showed that, compared to their inland relatives, mangroves have unusually small cells and thicker cell walls, which together provide the greater mechanical strength needed to tolerate saltwater while also preventing wilting.

Read more at: New York University