The latest update to this website was at 602pm Saturday (HST)

 

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

4.90    Mount Waialeale, Kauai
24.14  Luluku, Oahu!!
1.43  Puu Kukui, Molokai
0.74  Lanai
3.52  Puu Kukui, Maui
1.90  Pahoa, Big Island

The following numbers represent the strongest wind gusts (mph) as of Saturday evening:

13  Mana, Kauai – NW
22  Kii, Oahu – SE
24  Makapulapai, Molokai – NE
18  Lanai 1,  Lanai – NE
23  Nene Nest, Maui – SSW
27  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 tr0ugh is bringing inclement weather 

 

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

Low, middle, and high level clouds…as well as some thunderstorms south of 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

  Showers locally…many are heavy…especially near Oahu and Maui County

 

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

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

Flood Watch through this afternoon for Niihau, Kauai and Oahu.

 

Winter Weather Advisory until 6pm this evening for Big Island Summits.

 

Small Craft Advisory until noon today for Kauai Northwest Waters-Kauai Windward Waters-Kauai Channel-Oahu Windward Waters- Kaiwi Channel-Maui County Windward Waters-Pailolo Channel- Alenuihaha Channel-Big Island Windward Waters.



~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Saturday 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 81%.

10am, it’s cloudy and lightly raining here on Maui, with radar showing heavy showers in many places around the state.

205pm, the rain has stopped here in upper Kula, although it certainly hasn’t stopped in many other areas around the island chain. Looking at the latest radar imagery, it looks like we may have another round of showers, perhaps heavier stuff, arriving here on Maui later this afternoon or early this evening.

536pm, off an on heavy rain here in upper Kula, temperature 60.2 degrees with the relative humidity 80%

 

Weather Wit of the day:  Probability Forecast – Whethering a storm

 

Interesting weather blog: Mauka Showers…Aerial vs. Satellite Views – What Clouds in Satellite Images Look Like from a Plane

 

>>> Highest Temperature Friday, February 20, 2026 – 97 near Hidalgo, TX
>>> Lowest Temperature Saturday, February 21, 2026 – minus 16 at Havre, MT

 

Hawaii’s Broad Brush Weather Overview…as of 353pm Saturday: An upper level trough continues to slowly swing through the state and will allow for unsettled weather conditions to persist through tonight especially over Oahu and Maui County. Weather conditions should improve by Sunday morning, but scattered showers will likely persist for select areas.

Forecast for Monday has changed quite a bit and is now showing another upper level trough swinging through on Monday, which will bring the return of heavy rain showers as well as some moderate to locally breezy trade winds. Wet trade wind weather will likely persist through Tuesday.

Hawaii’s Weather Details…as of 345pm Saturday: Imagery is showing an upper level trough swinging through the state with the trough axis centered over the state. This vigorous trough combined with orographic lift led to some significant flooding along the Koolau Mountain Range earlier today. Preliminary rainfall reports of over 21 inches in 12 hours have been recorded in Luluku as well as over 15 inches in 12 hours over Moanalua and Poamoho. Some drier mid level air has decreased the rainfall threat for the time being, but unstable conditions will continue to exist through tonight especially for Oahu and Maui County.

For rest of tonight, the main concern will be over Oahu and Maui County as satellite imagery shows a cluster of heavy showers and thunderstorms moving in from the south. Another surge of moisture will be possible for this evening and tonight. Sunday morning should bring some improved weather conditions, although scattered showers will continue to persist in select windward areas. Sea breezes developing during the day should allow for the development of afternoon clouds and showers Sunday afternoon and evening.

Beyond Sunday, the latest global models have changed quite a bit over the past 24 hours and is now showing another trough swinging through the state Sunday night into Monday, and lingering through Tuesday. The threat for heavy rain will once again be on the increase Sunday night starting with the western half of the state, and spread eastward to the rest of the state Monday into Tuesday. With moderate to locally breezy trades returning during this time (which is a day earlier than the previous forecast), showers will be focused along windward and mountain areas.

With the added upper level support, heavy rain showers are expected and wet trade wind weather is expected through Tuesday. An upper level ridge should begin to build over the region by the middle of the week, which should bring at least a few days of drier weather. Meanwhile on the summits of the Big Island, a Winter Weather Advisory has been extended through tonight, due to the wintry mix of light snow and freezing rain likely continuing through the evening hours. Precipitation should be on the decrease tonight, but slick road conditions and freezing fog could continue through the morning hours.

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 311am Saturday: Fresh trades will ease this weekend as a gale to the northwest lifts northward and away from the region. Winds will become light and variable with overnight land breezes and daytime sea breeze wind regime by tonight. Seas will respond by gradually lowering, likely falling below the Small Craft Advisory level. In addition to the winds and seas, expect a wet pattern to continue with isolated thunderstorms due to an upper disturbance in the area.


Surf along exposed east-facing shores will begin rough, but gradually ease as the winds diminish locally and upstream of the state.


Surf along exposed north- and east-facing shores will quickly build through the day Monday, as a long-period north-northeast swell from a broad storm-force low evolves off the northwest Pacific coast this weekend. A large area of northerly gales between this system and a strong 1048 millibar blocking high centered over the Aleutians, will continue to expand southward through the weekend, with the head of the fetch reaching less than 1,000 nautical miles from the state.


Heights will reach warning levels for exposed north- and east-facing shores by late Monday through Tuesday. Although a gradual downward trend is anticipated by mid-week, additional pulses from this same system will keep surf above advisory levels for 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 could include significant erosion along some coasts and accretion at other locations as sand shifts opposite the typical swell direction, particularly along north-facing shores. Additionally, overwash along vulnerable sections of coastline and roadways will be possible beginning Monday night during high tide cycles. Mariners can also anticipate harbor surges at Kahului and Hilo.


Surf along exposed west-facing shores will rise early next week, as a long-period northwest swell arrives from a recent broad storm-force low over the far northwest Pacific.


 


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 589 NM south of Diego Garcia


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:  Alaska Climate Report: 2025 Ran Warm




Alaska had one of its warmest years of the previous 100 in 2025, the Alaska Climate Research Center reports in its year-end summary.


The Alaska Climate Research Center, part of the University of Alaska Fairbanks Geophysical Institute, released its 2025 summary in late January.


The year was among the warmest years going back to 1925 in National Oceanic and Atmospheric Administration data, the ACRC summary states. At an average of 29.6 degrees Fahrenheit, 2025 was the warmest year since 2019.


Compared with the 1991-2020 normal, Alaska overall was 1.5 degrees warmer in 2025.


Read More: University of Alaska Fairbanks