The latest update to this website was at 656pm Saturday (HST)

 

Our skies over Maui County are very threatening, with heavy rain falling in some areas! The wind isn’t an issue, at least over my area of upcountry Maui. There’s still that chance that I could lose power before this second Kona storm is done with us. If so, I’ll be back online when the power/connectivity returns.

 

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

0.15  Moloaa Dairy, Kauai
4.45  Maunawili, Oahu
6.22  Kamalo, Molokai
5.29  Lanai City, Lanai
6.54  Hanaula, Maui
0.59  Piihonua, Big Island

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

14  Lower Limahuli, Kauai – NW
18  Kuaokala, Oahu –  S
17  Puu Alii, Molokai – SW
16  Lanai 1,  Lanai – S
33  Kealaloloa Rg, Maui –  SW
30  Kona AP, Big Island – S

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.

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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

Variable clouds over the state 

 

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

Considerable cloudiness continues to arrive from the west-southwest 

 

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 heavy

 

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

~~~ Hawaii Weather Narrative ~~~

 

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

527am Friday morning, with breezy conditions, with cloudy skies here at my place and a light shower, with the low temperature 61 degrees, along with the relative humidity 79%.

820am, very threatening skies over Maui County, with some heavy duty showers falling in places! Here in upper Kula, I’m watching all the cool clouds, before the rain arrives.

1030am, cloudy and the first light shower just arrived here at my place, temperature 67.1 degrees

1210pm, we’re just having our second shower of the day…light to moderately heavy so far

305pm, here in upper Kula, at my place, the kona winds are stronger and they’re carrying some drizzle.

425pm, it’s interesting, that there’s such a distinct divide between west Maui and east Maui, in terms of the rainfall. I’ve been watching heavy rain fall over the west side of Maui, while we actually have partly sunny skies over me at times, interspersed by a few light sprinkles or a shower. I’m trying to beckon the rain over my way, although not having much luck so far.

656pm, our first heavy rain shower of the day has finally arrived, riding in on gusty kona winds, the temperature here at my place has dropped to 63.5 degrees. I understand that torrential rains have been pounded many parts of West Maui today.

 

>>> Highest Temperature Saturday, March 21, 2026 – 110 degrees near Cibola, AZ
>>> Lowest Temperature Saturday, March 21, 2026 – 14 degrees at Angel Fire, NM

 

Interesting Web blog…Mauka Showers – The March 11-15, 2026 Kona Low – Once in a Generation Storm?

 

Hawaii’s Broad Brush Weather Overview…as of 336pm Saturday:  Our kona storm will remain with us through Sunday for most islands, but the threat of flooding has become low enough for Kauai and Niihau that the flood watch has been cancelled there. For the remainder of the state, expect periods of showers, some heavy, to continue tonight and Sunday.

As the system moves off to the east Sunday night and Monday, trades will return from west to east Monday into Monday night, and then continue through the end of the week. Windward showers will be scattered to numerous Monday into Monday night, then decrease for the remainder of the week.

Weather Details for the islands…as of 335pm Saturday: Radar shows showers and isolated thunderstorms moving northeast over parts of the state. The largest area of showers was over Maui County, with showers also over parts of the Big Island. The upper level trough that has brought us this kona storm continues to drift slowly east as it evolves.

Today, the associated surface low has started to move northeast away from the state. This is the beginning of the end of this system. However, it will remain close enough for a continued threat of flash flooding from Oahu east through the Big Island through Sunday afternoon. Flood warnings remain in effect for much of Maui County.

Periods of showers and isolated thunderstorms are still expected tonight and Sunday. Moisture levels remain high and cold temperatures aloft will bring continued instability. Therefore, rainfall rates have the potential to be high. Sunday night and Monday, the upper trough will weaken and slowly slide across and east of the state.

At the same time, the surface low will move significantly farther away. This will allow a high pressure center to build in to the north of the state, and trade winds will return Monday to the western islands, and Monday night to the eastern islands. Low level moisture left over from the kona storm will result in scattered windward showers on western and central islands Monday, with numerous showers on windward Big Island into Monday night. From Tuesday through the end of the week, expect typical trade wind weather, with isolated to scattered showers windward and very few if any showers on the leeward side.

 

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 335pm Saturday: Bands of heavy showers and a few thunderstorms will continue to move over portions of the coastal waters, especially the central and eastern waters, as a kona low continues to impact the state. Prevailing southerly moderate to locally breezy winds continue across portions of the area as well. The low will lift farther north on Sunday, allowing light to moderate northerly winds to develop around Kauai, which will then veer to northeast and spread southward. Additionally, due to wave heights around Niihau, Kauai, and Oahu near 10 feet, a Small Craft Advisory remains in effect for those waters until 6AM Sunday.

A northerly swell is peaking today, and is producing borderline advisory-level surf for north facing shores of Niihau, Kauai, and Oahu as of this afternoon. This will continue into the evening hours before slowly declining overnight. As such, a High Surf Advisory (HSA) remains in effect for north facing shores for Niihau, Kauai, and Oahu until 6AM Sunday. Additionally, a slight bump is expected from a small, building west-northwest swell that will peak Sunday.

A small south swell is slowly declining and will continue to trend down through the rest of the weekend into early next week. Smaller surf is expected along south facing shores through the remainder of the week. Surf along east-facing shores remains elevated due to wrap from the north swell, and will be near HSA thresholds. This swell will slowly diminish through the rest of the weekend as well.

 

Maui Rainy Day Activities - Things To Do When It's Raining On Maui



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: 

Tropical Cyclone 27P (Narelle)…is located approximately 198 NM east-southeast of Darwin, Australia

https://www.metoc.navy.mil/jtwc/products/27P_220000sair.jpg

 

North 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:  How Climate Change Is Fueling Disease Outbreaks

New Stanford-led research traces a direct line from extreme weather to a massive dengue outbreak in Peru. The findings serve as a warning – and the seed of a possible solution.

Diseases historically absent from the United States have been showing up in Florida, Texas, California, and other U.S. states in recent years. To understand why, look to Peru. That’s where researchers from Stanford and other institutions analyzed the connection between a cyclone and a massive outbreak of dengue fever, a mosquito-borne viral disease that can cause fever, rash, and life-threatening symptoms like hemorrhage and shock. Their findings, published March 17 in One Earth, reveal that warmer, wetter weather linked to climate change is making disease epidemics more likely.

“Health impacts of climate change aren’t something we’re waiting for,” said study lead author Mallory Harris, a postdoctoral scholar at the University of Maryland who conducted the research as a PhD student in biology at Stanford. “They’re happening now.”

Read more: Stanford University