The latest update to this website was at 431pm Sunday (HST)

 

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

1.46  Lihue AP, Kauai
5.00  St. Stephens, Oahu 
1.68  Honolimaloo, Molokai
0.83  Lanai 1, Lanai
4.19  Hana AP, Maui
2.09  Pahoa, Big Island

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

30  Lihue, Kauai – NE
27  Kuaokala, Oahu – NW
17  Puu Alii, Molokai – SSW
16  Lanai 1,  Lanai – SW
23  Na Kula, Maui – SE
32  Mauna Loa Obs, 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

 A low pressure trough is moving away

 

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

Variably cloudy with still thunderstorms locally 

 

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…some are still 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 Sunday comments:  I’m here at home in upper Kula, Maui

It’s cloudy early this morning here at my place, with calm winds, and a chilly low temperature of 49.5 degrees , and the relative humidity is 85%.

1210pm, it’s getting cloudy here in Kula, and I can hear thunder over along the windward sides, with very dark clouds there. Friends tell me that in Haiku there’s a thunderstorm with heavy rain falling.

358pm, it’s getting very cloudy again here in upper Kula, although no drops are falling yet. Meanwhile, it’s quite sunny down along the coasts here on Maui. It looks like the Hana area is getting hit with more of those heavy rain showers again this afternoon.

432pm, after the sky being very dark, we are getting some large drops falling from the sky…here at my place in Kula.

 

Weather Wit of the day:  Rain Forecast – The wetter report

 

>>> Highest Temperature Sunday, February 22, 2026 – 92 at Hollywood, FL
>>> Lowest Temperature Sunday, February 22, 2026 – minus 17 at Crosby, ND

 

Hawaii’s Broad Brush Weather Overview…as of 301pm Sunday:  Flash flooding will be possible over island interiors this afternoon and over windward and mountain areas tonight, as moist and unstable trades build into the area. Trades then persist through mid-week becoming increasingly stable with time.

The weather pattern at the start of the week will be characterized by an upper-level trough gradually weakening and pulling away to the northeast. However, a surface cold front currently just north of the islands will be slowly dropping southward and should move through the islands through Monday. The slow progression of this boundary, coupled with moist east-to-northeast flow, will favor areas of locally heavy showers and thunderstorms along windward slopes. Climatologically favored windward and mountain areas of Kauai, Oahu, Molokai, and Maui appear most at risk for the heaviest rainfall, with at least a few inches of rain expected locally where the heavier showers become anchored to the terrain.

Hawaii’s Weather Details…as of 301pm Sunday: Cold northwest flow aloft supports moderate instability noted on this afternoon`s atmospheric soundings out of Lihue and Hilo. The islands reside in a favorable environment that is particularly sensitive to developing low-level convergence, namely among emerging sea breeze boundaries. Deep, slow-moving convection/thunderstorms are therefore possible over the islands until sundown. Thunderstorms may yet develop over the higher terrain of the Big Island where they are considerably less likely to result in a flash flooding threat.

Trades then return tonight, as the mechanism for low-level convergence will shift to terrain, and will therefore refocus the flash flooding threat over windward and mountain areas tonight. Trades will gradually strengthen, becoming breezy by early morning Wednesday, which will lead to decreasing convergence and increasingly progressive shower motion with time. However, at least the first half of the night will see rather slowly building trade winds and correspondingly slow-moving convection embedded within. The Flood Watch therefore remains in effect for for Kauai, Oahu, Molokai, and Maui.

Mid-level ridging gradually builds as the week progresses leading to increasingly stable trades.

 

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…as of 430am Sunday: A strong high pressure system building far north of the Hawaiian Islands continues to push a low level trough towards the state. This trough will continue to block large scale trade winds, with light and variable winds for all waters. Land and sea breezes expected for near shore waters of all islands. The low level trough will move into the islands from the north tonight through Monday. Fresh to strong trade winds and moderate to heavy rain showers and isolated thunderstorms will blow in across the region. Trade winds weaken again and veer more southeasterly from Thursday into Friday, as another cold front approaches the island chain from the west.

Surf along exposed north and east facing shores will quickly build through the day Monday, as a long period north-northeast (010-020 degree) swell from a broad storm force low develops off the northwest Pacific coast next weekend. A large area of northerly gales between this system and a 1040 millibar blocking high will continue to drift southward. Surf heights will exceed advisory levels by Monday afternoon, possibly reaching low end warning levels by Monday night, for exposed north and east facing shores lasting through Tuesday. Although a gradual downward trend is anticipated by Wednesday, additional pulses from this same system will keep surf above advisory levels along east facing shores through much of the week. This swell direction will bring surf into some typically protected areas such as Kua Bay, West Maui, and exposed shores of Lanai.

Other impacts from this north-northeast swell direction will include overwash along vulnerable sections of coastline and roadways by Monday night, during the early morning high tide cycles. Mariners can also anticipate harbor surges at Kahului and Hilo.

Surf along exposed west facing shores will rise early in the upcoming new week, as a long-period northwest swell arrives from a recent broad storm force low over the far northwest Pacific. This swell will slowly fade into Wednesday.

 

Ten Things To Think About As You Plan Your Kauai Vacation - Honu Point



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 22S (Horacio) is located approximately 634 NM east of Port Louis, Mauritius

https://www.metoc.navy.mil/jtwc/products/sh2226.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:  The Hidden Impact of Polluted Snow

As Canada experiences record snowfall, new research from the University of Waterloo suggests that tiny amounts of industrial pollution trapped in snow can change how sunlight reaches the ground below and significantly alter fragile environments.

The culprit is black carbon, a sooty form of pollution produced when fossil fuels burn incompletely. It can come from vehicle exhaust, industrial emissions and other combustion sources. While black carbon is already known to contribute to warming, the Waterloo research highlights another, less visible effect: how it alters the “light environment” under snow in ways that affect plant growth.

Even at the height of winter, some sunlight is transmitted through snow and reaches soil, seeds and vegetation beneath. Snow doesn’t let all light through equally. As it propagates certain wavelengths of light and absorbs others that are vital for biological processes, like seed germination, cold activation tolerance and chlorophyll production, it can affect the development of vegetation that’s just below the snow. Conversely, snow reflects light at specific wavelengths that can actually disrupt plant dormancy and stimulate stem growth, influencing how higher plants develop.

Read more at: University of Waterloo