The latest update to this website was at 448pm Monday (HST)

 

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

0.01  Waialae, Kauai
0.35  St. Stephens, Oahu
1.40  Puu Alii, Molokai
0.68  Lanai 1, Lanai
2.29  Puu Kukui, Maui
2.85  Kahuku Ranch, Big Island 

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

14  Poipu, Kauai – SW
18  Kuaokala, Oahu – SE
14  Anapuka, Molokai – SW
07  Lanai 1,  Lanai – SSW
29  Nene Nest, Maui – SW
32  Pali 2, 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.

 

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

Improving weather for the state, at least compared to what we’ve just come through!

 

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

Clouds moving into the state from the west…localized thunderstorms in the vicinity

 

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 still quite heavy near the Big Island and Kauai

 

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

949pm, I’m back Sunday evening, after having no power or internet connectivity since this past Friday afternoon!

521am Monday morning, there’s no wind, although there’s dense pea soup fog here early this morning at my place, with the low temperature a relative warm 59.5 degrees, along with the relative humidity 81%.

406pm, off and on foggy periods with drizzles here in upper Kula today, with radar showing a somewhat more substantial shower area taking aim on the leeward sides of Maui County late this afternoon.

 

>>> Highest Temperature Monday, March 16, 2026 – 99 degrees near North Shore, CA
>>> Lowest Temperature Monday, March 16, 2026 – minus 15 degrees at Langdon, ND

 

Hawaii’s Broad Brush Weather Overview…as of 432pm Monday:  An overall wet weather pattern will persist this week with bands of transient showers, some of which could be heavy at times, moving over the islands. Winds will be much lighter than those experienced within recent days, and will become variable through mid-week before southerly flow returns late this week. An additional period of heavy rainfall will be possible during the latter portion of this week as a new, but much weaker, kona low develops near the islands.

>>> With soils saturated and creeks/rivers high from recent heavy rains, the increasing chances of widespread additional heavy rains late week through the weekend into next week (although not as dynamic as this recent kona storm), will support the risk of life-threatening flash flooding statewide during this time.

Hawaii’s Weather Details…as of 432pm Monday: Deep moisture embedded within light to moderate southerly background flow across the eastern end of the state, continues to stream over the Big Island and its surrounding waters, with fewer showers observed near east Maui. Pockets of heavy rainfall have fallen over portions of the Big Island throughout the day, including the Kau and Puna Districts late morning into early afternoon, followed by the North and South Kohala and Kona Districts as of mid-afternoon. For the remainder of the islands, much lighter and more isolated to scattered showers have occurred thus far today.

However, additional convection can be seen developing on regional satellite and radar imagery at the western end of the state near Kauai, which has the potential to bring some localized heavy rain to the Garden Isle over the next few hours as well. All of these scenarios were decently well-supported in the hi-res guidance probabilities today.

For this evening and tonight, bands of showers, some of which could be heavy at times, will continue to move across portions of the state, though the main one looks to be the westernmost band that will move southeastward throughout the night. Of note, don’t expect anywhere near the significant impacts that were associated with the kona storm with this activity.

The High Wind Warning that was previously in effect for the Big Island summits and Haleakala has been downgraded to a Wind Advisory. Based on the latest trends, it is possible that this advisory will be cancelled early, as wind speeds have quickly dropped within the past hour or so.

Current model solutions for Tuesday through mid-week maintain an upper-level trough across the region, supporting a pattern of light and variable winds with periods of occasional showers.

During the latter part of the week, confidence is increasing that another kona low will develop west of the islands. Importantly, however, this low is expected to be considerably weaker than the most recent one, but could still be capable of delivering periods of heavy rain and flash flooding. Guidance indicates that winds will also not be as strong as the most recent storm, and are in fact expected be be unusually weak for a kona low.

It remains too early to determine which islands will be the most impacted at this time, and is also uncertain when the initial flooding threat may develop. With that said, the forecast for the extended period has undergone significant updates, mainly to include adjustments to the location, timing, and magnitude of rain chances from Thursday into the weekend. Given the uncertainty at this range, the forecast will continue to be refined in subsequent updates.

 

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 328am Monday:  Conditions over the marine area will continue to improve during the next couple of days, as the recent kona storm moves northeast and away from the area. Winds and seas have dropped below advisory levels, therefore the Small Craft Advisory (SCA) has been cancelled. The gradient in the wake of the storm will remain rather weak Tuesday and Wednesday, with light and variable winds prevailing over the waters.

The pattern becomes more uncertain late in the week. A brief period of light to moderate trades will be possible Thursday as a weak ridge builds north of the state, followed by light to moderate southerly winds on Friday, as a new storm system approaches from the west.

Surf along south facing shores will trend down lower as south to southwesterly winds ease. A new long period south swell will then arrive late tonight and Tuesday, giving a nice and extended boost to south shore surf through late this week.

A moderate sized short-period, west swell associated with the recent kona storm will affect north and west facing shores, but surf will remain below advisory levels. As a result, the High Surf Advisory for west facing shores of the Big Island has been cancelled. The short-period west swell will lower tonight and Tuesday, while a new medium-period north-northwest swell fills in. This north-northwest swell could bring surf up close to advisory levels Tuesday night and Wednesday, with the swell then shifting more northerly and lowering below advisory levels Thursday into the weekend.

Surf along east facing shores will remain well below normal levels through late in the week, as trade winds over and upstream of the islands appear to remain mostly disrupted.

 

The Scoop on Hawaii Weather



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:  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:  Here’s Why you Need to Charge your EV More Often in the Cold

When the temperature drops to -20°C, we electric car owners quickly notice it on our wallets. But is it just a matter of driving with the heat on full blast? And what can we do to save the battery as much as possible?

You charged your car to 80 percent last night, and this morning it’s at 78 percent. The fast charger, which usually takes half an hour, now takes almost two hours. And on the way to work, you notice that the battery percentage is dropping faster than normal.

We spoke to senior researcher and battery expert, Fride Vullum-Bruer, to gain a little more insight into why batteries behave the way they do, and what we as users can do to protect the battery as much as possible in the cold.

Read more at: Norwegian University of Science and Technology

Yes, you have to charge your EV more often when the temperature drops. But with simple adjustments, you can use your electric vehicle in a predictable and safe way, even when the temperature drops to 20 below.