The latest update to this website was at 902am Saturday (HST)

 

Here are the highest temperatures Friday afternoon…and the lowest Friday morning:

80 / 64  Lihue AP, Kauai
m / m  Honolulu AP, Oahu
81 / m  Molokai AP, Molokai
85 / 60  Kahului AP, Maui
83 / 72  Kona AP, Big Island
81 / 63  Hilo AP, Big Island

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

0.02  Kilohana, Kauai
0.03  Poamoho RG 1, Oahu
0.00  Molokai
0.01  Lanai City, Lanai
0.00  Maui
0.15  Kealakekua, Big Island

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

08  Port Allen, Kauai
09  Makua Range, Oahu
09  Molokai 1, Molokai
14  Lanai 1, Lanai
06  Kula 1, Maui
14  South Point, 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/GOES17/ABI/SECTOR/tpw/13/GOES17-TPW-13-900x540.gif 

 A cold front is located northwest of the state


https://cdn.star.nesdis.noaa.gov/GOES17/ABI/SECTOR/hi/GEOCOLOR/GOES17-HI-GEOCOLOR-600x600.gif

Variable clouds across the state

 

https://cdn.star.nesdis.noaa.gov/GOES17/ABI/SECTOR/hi/13/GOES17-HI-13-600x600.gif

Low clouds arriving south winds…high clouds arriving from the north

 

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

Localized showers

 

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

Kauai and Oahu (Satellite)

 

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

Kauai and Oahu (Radar)

 

https://www.weather.gov/images/hfo/satellite/Oahu-Maui_VIS_loop.gif

Oahu and Maui County (Satellite)

 

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

Oahu and Maui County (Radar)

 

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

 Maui, Kahoolawe, Lanai, and the Big Island (Satellite)

 

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

Maui County and the Big Island (Radar)

 

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

Big Island (Radar)

 

Model showing precipitation through 8-days (you can slow this animation down)

 

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

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

 

https://www.weather.gov/images/hfo/graphics/pmsl.gif

~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Saturday comments:  I’m home here in upper Kula, Maui, Hawaii. I hope you have a good Saturday wherever you happen to be spending it.

It’s clear and calm (although incredibly voggy!), with a low temperature of 49.5 degrees according to my outside temperature sensor.

 

Hawaii’s Broad Brush Weather Overview:  Light to moderate winds will veer out of the south this weekend, as a cold front approaches and stalls to the northwest. With this lighter wind flow, overnight land breezes and afternoon sea breezes will prevail before southwesterly kona winds strengthen for the western end of the state early next week. A cold front may move over portions of the state by mid-week and bring beneficial rain and breezy winds.

Hawaii’s Weather Details:  Radar and satellite imagery show scattered showers moving into the Big Island from the southeast, and moving from south to north across the rest of the island chain. These showers are primarily remaining over the waters as land breezes have helped to clear out land areas overnight.

As a weak cold front gets closer and stalls north of the state this weekend, local winds will continue to weaken and veer out of the south and then eventually southwest across the western end of the island chain. During this period, land and sea breeze activity will become more widespread, allowing for limited cloud and shower development over leeward and interior areas during the day and clearing at night.

An upper level trough will move down and sweep across the central Pacific, and finally help to drive the next weak cold front through at least a portion of the island chain by mid-week next week. Ahead of the front, the southwesterly kona flow will strengthen across the western half of the state late this weekend into early next week, which may be enough to overcome the land and sea breeze pattern for Kauai and Oahu, and focus clouds and showers over leeward areas…especially if any prefrontal convergence bands materialize in the southwesterly flow.

The latest model runs continue to bring the front to Kauai on Tuesday evening, then have it slowly move through the middle of the island chain by Wednesday evening before it stalls. This frontal passage looks to bring some beneficial rain to the area, along with breezy north-northeasterly winds for the western half of the state.

Convergence along this dissipating front, an abundance of upstream moisture, and a new plume of moisture associated with a low level disturbance moving towards the eastern end of the state, will keep rain chances in the picture through the latter part of the week. Rainfall will mainly be focused over windward and mountain areas for this period, as high pressure builds behind the front and trades return.

Finally, a hot spot over Halemaumau Crater on the Big Island continues to be seen on infrared satellite imagery. As winds weaken and shift out of southeast, south, and southwest this weekend into early next week, SO2 emissions are expected to to increase across some of the smaller islands.

Fire weather:  No critical fire weather conditions are expected for the next seven days. A daytime sea breeze and overnight land breeze pattern will continue into early next week, as a weak southerly flow takes over. Relative humidities will stay above critical levels. An approaching front is expected to move through part of the state from mid-to late week next week, bringing breezy northeasterly winds and providing much needed rainfall to leeward locations.

Here’s a near real-time Wind Profile of the Pacific Ocean – along with a Closer View of the islands / Here’s the latest Weather Map / Vog map animation

Hawaii’s Marine Environment:  Forerunners of the first of a series of large to potentially extra large northwest swells has reached the offshore buoys. Big Island west facing shores has been added to the High Surf Warning (HSW) that remains in effect for north and west facing shores of Kauai, Niihau, Oahu, Molokai, and for north facing shores of Maui starting noon today through Sunday. Expect surf to quickly build. A Small Craft Advisory (SCA) has also been issued for all waters except Maalea Bay as seas quickly build for waters exposed to the swell.

Another round of large to extra large northwest swell is expected Monday through Thursday next week, as the storm low that will be producing the weekend’s swell, regroups and continues to maintain a sizable and strong fetch aimed at Hawaii. Surf may briefly drop below HSW levels Sunday night and Monday between swells, before likely building back to extra-large HSW levels Tuesday through Thursday. Surf along east and south facing shores will remain small.

A surface ridge will remain centered over the state, producing light and variable winds over the western half of the state, and gentle to locally fresh east-southeast winds over the eastern half of state. A front approaching from the northwest may gradually strengthen southwest kona winds to moderate to fresh speeds around Kauai and Oahu Sunday, then to moderate to strong speeds Tuesday, while the eastern half becomes light and variable.

The front may reach Kauai as early as Tuesday night with moderate northerly winds filling in behind it, before stalling and dissipating over the central islands during the second half of next week. Moderate to fresh trades may return during this time as a high builds north of the state behind the front. The front will bring the chance for thunderstorms over the far northern offshore waters through Tuesday.

 

Hawaii's 9 Best Waves
Large surf north and west shores

 

 

World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

Caribbean Sea:  There are no active tropical cyclones

Gulf of Mexico:  There are no active tropical cyclones

Northeastern Pacific:  There are no active tropical cyclones

Here’s the link to the National Hurricane Center (NHC)

North Central Pacific:  There are no active tropical cyclones

Here’s the link to the Central Pacific Hurricane Center (CPHC)

Northwest Pacific Ocean:  There are no active tropical cyclones

Southwest Pacific Ocean:  There are no active tropical cyclones

North and 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:  The Growing Human Footprint on Earth, as Seen from Space

Last year saw warming reach startling new highs, with record heat fueling extreme weather around the world. As farms and cities grow, pollution is spreading and overheating the planet. The evidence of our impact is so profound that it can be seen from space.

These satellite images shared by NASA’s Earth Observatory over the last year show the staggering human footprint.

Farms

Farms and pastures account for almost half of the world’s habitable land, meaning those parts not covered by ice or desert. And recent years have seen a boom in greenhouses, which now cover 3.2 million acres, an area the size of Connecticut. The images below show the profusion of greenhouses in China.

Read more at: Yale Environment 360

A satellite image of haze from cities in the Indus River Valley colliding with the Sulaiman Mountains in Pakistan. (Photo Credit: NASA)