The latest update to this website was at 807am Thursday (HST)

 

Here are the highest temperatures Wednesday…and the lowest Wednesday:

84 – 73  Lihue AP, Kauai
82 – 71  Molokai AP, Molokai
86 – 71  Kahului AP, Maui
84 – 71  Kona AP, Big Island
83 – 67  Hilo, AP, Big Island

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

1.06  Mount Waialeale, Kauai
1.05  Tunnel RG, Oahu
0.28  Puu Alii, Molokai
0.00  Lanai
0.60  West Wailuaiki, Maui
0.72  Waiaha Stream, Big Island

>>> There are lots of new locations that measure rainfall and winds now, here’s a map of all areas for your reference (the map is clickable to zoom in closer)

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

20  Port Allen, Kauai
39  Oahu Forest NWR, Oahu
29  Makapulapai, Molokai
29  Lanai 1, Lanai
33  Kealaloloa Rg, Maui
42  Puuloa, 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 

 An upper level low pressure system north…thunderstorms in the deeper tropics


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

Low clouds being carried our way on the trade winds

 

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

High clouds to our north and south…clipping the Big Island and Kauai

 

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)

 

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

~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Thursday comments:  I’m home here in upper Kula, Maui, Hawaii.

It’s mostly clear with clouds along the windward side here in Maui County this morning. The low temperature here at my place was 53 degrees.

—Forecasters within NOAA’s National Weather Service predict above-normal hurricane activity in the Atlantic basin this year.

Weather Wit of the day:  Outstanding Weather – When you’re outstanding in the cold, wind and rain

 

Hawaii’s Broad Brush Weather Overview:  High pressure will meander far northwest of Hawaii through Saturday, keeping moderate to locally breezy trades blowing. A low aloft will enhance incoming trade wind showers today through Friday. A few downpours are possible, and a rumble or two of thunder can’t be ruled out, mainly for Kauai and Oahu, which will be closest to the upper low. The holiday weekend will trend much drier and more settled as the upper low moves away. The drier weather will continue through the middle of next week with the trade winds easing a bit.

Hawaii’s Weather Details:  We find a high centered far north-northwest, which continues to generate moderate to locally breezy trade winds across the island chain. Satellite imagery shows partly to mostly cloudy conditions across the state, with cloud coverage the greatest over windward and mountain areas. Radar imagery shows scattered showers moving into windward slopes and coasts, with a few showers occasionally reaching leeward.

High pressure will remain anchored to the north-northwest of the state through tonight, then reposition to the northwest of the islands Friday through the weekend. This will maintain moderate to locally breezy trade winds across the island chain. The high will weaken and the associated ridge extending eastward from the high, will settle southward and closer to the state Memorial Day through the middle of next week, resulting in an easing of the trade wind flow back to moderate speeds.

Meanwhile, an upper level low currently evident in water vapor imagery north-northwest of Kauai, will pivot southeastward and over the western islands later today. This feature will remain nearly stationary in the vicinity of Kauai and Oahu tonight, then begin to lift northeastward on Friday. As the upper level low pivots over the western end of the state, this is likely to bring some locally heavy downpours in trade showers to the western islands, with a few rumbles of thunder not out of the question as well.

Some thunder may affect the Big Island slopes this afternoon, similar to what was seen yesterday. Otherwise, a wetter than normal trade wind pattern should prevail during the next couple days, favoring windward and mountain areas, along with more leeward spread to the shower activity.

The upper low will continue to lift northeastward and away from the islands Friday night and Saturday, although lingering moisture will likely keep a somewhat showery trade wind pattern in place. The atmosphere will further stabilize Sunday and Memorial Day, leading to a decrease in trade showers, with fairly typical or slightly drier than normal conditions expected through the middle of next week.

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:  A broad ridge of high pressure will remain nearly stationary north of the state, maintaining moderate to locally strong trade winds through the weekend. An upper level low will build over the northern waters, enhancing trade showers and may produce isolated thunderstorms, mainly over Kauai and Oahu waters, through Friday. The Small Craft Advisory for the windier waters and channels around Maui County and the Big Island has been extended through Friday, and now includes windier waters around Kauai and Maui County, as winds are expected to strengthen slightly.

Surf along south facing shores will remain small to moderate as a long period south-southwest swell is expected to fill in. A second pulse from the same direction will fill in over the weekend, keeping small to moderate surf through the weekend, before declining early next week.

East shore surf will remain near seasonal average during the next couple of days as trade winds persist. Tiny surf will prevail along north facing shores this week into the weekend.

 



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

South of the Southern Coast of Mexico:

>>> An area of low pressure is likely to form early next week several hundred miles south of the southern coast of Mexico. Conditions appear favorable for development of this system, and a tropical depression could form around the middle of next week while moving westward to west-northwestward at 10 to 15 mph.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…medium…50 percent

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:  How Climate Change is Changing Your Favorite Wine

If you drink wine, chances are it already tastes different—rising global temperatures are transforming wine growing regions around the world.

A major global study led by UBC researchers reveals that temperatures during the growing season have increased globally across the major wine regions. On average, regions have warmed by the equivalent of almost 100 extra growing degree days (GDD)—a measure of the cumulative heat that vines are exposed to, influencing their growth and ripening.

“Europe is feeling the biggest impact, with parts of the continent heating up by as much as 2.5°C since 1980. That kind of change can affect harvest times, grape ripening, and thus the taste of the wine,” said Dr. Elizabeth Wolkovich, senior author of the study and an associate professor at UBC’s faculty of forestry.

Read More: University of British Columbia