The latest update to this website was at 1109am Monday (HST)

 

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

1.98  Mount Waialeale, Kauai
1.10  Poamoho RG 1, Oahu
2.83  Puu Alii, Molokai
0.39  Lanai City, Lanai
4.12  West Wailuaiki, Maui
1.11  Puuloa, Big Island

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

28  Lihue, Kauai – NE
42  Kuaokala, Oahu – NNE
33  Anapuka, Molokai – NNW
27  Lanai 1,  Lanai – NE
23  Kapalua, Maui – NE
27  Puu Mali, 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 over the state

 

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

Variably cloudy with still thunderstorms locally 

 

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

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

  Showers locally…some are still heavy, mostly over Maui and the Big Island  

 

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 foggy early this morning here at my place, with showers and breezy north winds, and a chilly low temperature of 47.5 degrees, and the relative humidity is 87%.

1034am, it’s cloudy and breezy and chilly, with off and on sprinkles or light showers here at my place in upper Kula. 60.6 degrees with the relative humidity 85%

>>> Please be aware that the power could go out today, as the ground is soggy and the winds are locally quite strong and gusty. If I lose my power or internet connectivity, I’ll begin to update this website immediately upon their return.

 

Weather Wit of the day:  Palm Springs Forecast – “Golf balls the size of hail”

 

>>> Highest Temperature Sunday, February 22, 2026 – 92 at Hollywood, FL
>>> Lowest Temperature Monday, February 23, 2026 – minus 18 at Crane Lake, MN

 

Hawaii’s Broad Brush Weather Overview…as of 850am Monday: An upper level trough over the islands will set the stage for an unstable environment today. A low level trough riding into the islands from the north will trigger bands of moderate to heavy showers, with possible thunderstorms through the afternoon hours.

Cool moderate to breezy northeasterly trade winds will blow across the region, with decreasing shower trends as high pressure builds in tonight into Thursday. Winds begin to weaken and veer from a more southeasterly direction Friday into the weekend ahead of the next cold front approaching the islands from the west.

Short Term Update…as of 850am Monday:  The Flood Watch for Kauai County and Oahu has ended. The Flood Watch remains in effect through 6pm for Maui County. Radar shows the heavier showers have shifted east, leaving the western islands out of the flood risk. The heaviest showers were over eastern Maui, and the area is being closely monitored for flooding. Thunderstorms are still possible today for Maui County and the Big Island. The Wind Advisory for the summits of Big Island will remain in effect until noon, as currently issued. Sustained winds there continue at or above 40 mph. Weakening is expected this afternoon.

Hawaii’s Weather Details…as of 348am Monday: Satellite imagery shows an upper level trough lingering over the Hawaiian Islands, as a low level trough moves into the islands from the north. The upper level trough provides the large scale instability, while the low level trough and strengthening trade winds provide the lift over island mountain ranges, producing bands of moderate to heavy showers marching southward down the island chain today.

An elevated risk of flash flooding remains as the ground is already saturated from heavy rain that has fallen over the past 48 hours, and even additional rainfall rates in the 2 inches per hour range could lead to excessive runoff and trigger localized flash flooding. The main threat to watch for in this pattern will be along windward northern and eastern slopes from several storm cells training into one area, or with terrain anchored thunderstorms. A Flood Watch remains in effect for most of the state. The latest short range model trends are suggesting shower intensity will strengthen along the low level trough from 8am to 2pm. Flooding threats will diminish from north to south later today after clouds along the low level trough pass through each island.

Strong winds over the Big Island summits of Mauna Loa and Mauna Kea will continue to trend lower. A Wind Advisory replaced the wind warning at summit level, this advisory was issued and will end at noon.

Drier and much cooler air from the North Pacific will ride into the region on the northeasterly trade winds into Thursday. This drier atmosphere will allow additional radiational cooling into outer space for the next few nights, with low temperatures dropping into the 50`s and 60`s depending upon elevation. This drier trade wind pattern will continue through Thursday before winds decrease and veer from a more east-southeasterly direction Friday into the weekend. The wind pattern shifts as the ridge over the islands weakens in response to yet another cold front approaching the Hawaiian Islands from the west.

 

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 348am Monday: A trough over the central coastal waters will slowly push southward due to the strong high pressure far north of the islands. Currently, gentle westerly winds are south of the trough, while fresh to strong easterly winds prevail north of the trough. Scattered moderate showers and isolated thunderstorms can be expected near and along the trough. A Small Craft Advisory (SCA) is in effect for waters surrounding Kauai, due to fresh to strong trade winds, and will be expanded and extended even though the winds should ease slightly tonight and Tuesday, but due to a large north-northeast swell expected to produce seas in excess of the SCA threshold over most waters into Tuesday night. Moderate to locally fresh trades are expected on Wednesday, giving way to southeasterly winds Thursday or Friday as a front approaches.

Surf along north facing shores will build due to a northeast (010-030 deg) moderate long period swell that has begun to show forerunners at NDBC buoy 51000. As the swell builds, it will produce breaking waves at High Surf Warning levels across most north and east facing shores during the peak tonight and Tuesday. Due to the direction of the large swell, exposed west facing shores of West Maui, western Molokai, and North Kohala on the Big Island will likely experience High Surf Advisory waves. The north-northeast swell will gradually decline Tuesday night through Friday. In addition to this swell, a small pulse of overlapping west-northwest swell is expected to build and hold through Wednesday.

Due to the direction of the large north-northeast (010-030) swell, some overwash will be possible along low-lying coastal roads and infrastructure in windward areas, and hazardous conditions and heavy surges are expected in north facing harbors, mainly in Hilo and Kahului.

Very small wintertime surf will continue along south facing shores this week.

 

What to Do When it Rains on Oahu - Hawaii Travel Guide



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 440 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:  Climate Change and Persistent Contaminants Deliver One?Two Punch to Arctic Seals, SFU Study Finds

New research shows a single year of warmer-than-average Arctic temperatures can cause malnutrition in Arctic seals, intensifying risks to Inuit food security and northern ecosystems already under pressure from environmental toxins, warn Simon Fraser University researchers.

The SFU study found Arctic ringed seals are struggling to clear persistent contaminants and banned pesticides from their bodies — a long?term health risk made worse when climate?driven changes to sea ice and temperatures limit their access to nutrient-rich food.

“Ringed seals are a crucial link between invertebrates, fish and apex predators, and they are a cornerstone of northern food systems,” says Tanya Brown, marine mammal ecotoxicologist and senior study author. “We’ve found that warmer conditions can change what they feed on, which changes their contaminant exposure, and that can affect their overall health and survival.”

Read More: Simon Fraser University

Image: SFU researchers take a blood sample from an Arctic ringed seal in Northern Labrador.