The latest update to this website was at 1130am Monday (HST)

 

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

0.01  Waialae, Kauai
0.39  St. Stephens, Oahu
1.40  Puu Alii, Molokai
0.68  Lanai 1, Lanai
2.28  Puu Kukui, Maui
3.14  Kahuku Ranch, Big Island 

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

14  Port Allen, Kauai – S
18  Kuaokala, Oahu – SE
16  Makapulapai, Molokai – SW
07  Lanai 1,  Lanai – SSW
36  Nene Nest, Maui – SW
29  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

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 east Maui

 

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%.

 

>>> Highest Temperature Sunday, March 15, 2026 – 105 degrees near Hidalgo, TX
>>> Lowest Temperature Monday, March 16, 2026 – minus 15 degrees at Langdon, ND

 

Hawaii’s Broad Brush Weather Overview…as of 1004am Monday:  As the kona low exits to the north of the Hawaiian Islands, remnant bands of moderate showers continue over Leeward Big Island and Maui while conditions improve elsewhere. Toward the latter end of the week, another threat of heavy rain is anticipated as low pressure develops west of 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.

Short Term Update…as of 959am:  Southerly kona winds continue across the region, though speeds for lower elevations have dropped significantly versus what were observed yesterday. However, with that said, moisture embedded within the southerly flow can been seen on latest radar and satellite imagery making its way northeast. Most of the rain is occurring in or near the Alenuihaha Channel and the Big Island at this time. Regional satellite imagery shows convection developing upstream, southwest of the Big Island, where cloud tops are reaching up to around 45,000 feet.

Pockets of heavy rain can be expected within this activity as it approaches the western districts of the Big Island late this morning into early afternoon. This scenario is also supported in the latest hi- res guidance, the majority of which show some variation of an increase in showers and locally heavy rain over or near the Big Island and east Maui through the day today, before tapering off this evening. Elsewhere, much lighter and more isolated to scattered showers are expected for the rest of the day.

Additionally, observations from the Big Island summits continue to show sustained winds in excess of 56 mph with gusts exceeding 66 mph. Therefore, the High Wind Warning will remain in effect for the summits of the Big Island and for Haleakala through the remainder of the day.

Hawaii’s Weather Details…as of 328am Monday: Remnant bands of moderate showers continue to affect leeward Big Island and and portions of Maui County, and are expected to persist through at least tonight and possibly through Tuesday. However, recent observations indicate hourly rainfall rates remain below a tenth of an inch across both islands. In response to the reduced rainfall intensity and improved flooding thread, the Flash Flood Watch for Maui County and the Big Island has been cancelled.

Observations from the Mauna Kea Weather Center, along with model guidance indicating strong winds, suggest that high winds across the Big Island summits and Haleakala will persist. As a result, the High Wind Warning has been extended. Conditions will continue to be monitored and reevaluated.

Confidence in the extended forecast beyond Monday remains somewhat limited as model guidance continues to evolve. Current solutions maintain an upper-level trough across the area, supporting a pattern of light and variable winds, with periods of showers and the potential for isolated thunderstorms through much of the week.

Toward the latter part of the week, model guidance diverges somewhat, with the GFS depicting a flatter and more progressive surface low, while the ECMWF suggests a deeper and slower-moving system. The latest GFS run has trended closer to the ECMWF solution, increasing confidence that organized low pressure could develop over or near the island by late week. 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.