The latest update to this website was 1017pm Friday evening (HST)

 

Air Temperatures – The following high temperatures (F) were recorded across the state of Hawaii Friday…along with these low temperatures Friday morning

7267  Lihue AP, Kauai
7571  Honolulu AP, Oahu
8473  Molokai AP, Molokai
88 – 75  Kahului AP, Maui 
8175  Kona AP, Hawaii
8472  Hilo AP, Hawaii 

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

0.49  Mount Waialeale, Kauai
3.75  Maunawili, Oahu

0.03  Puu Alii , Molokai
0.02  Lanai City, Lanai
0.31  Puu Kukui, Maui
0.86  Pahala, Big Island

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

23  Puu Opae, Kauai
17  Kii, Oahu
16  Makapulapai, Molokai
09  Lanai 1, Lanai
15  Hana, Maui
13  Kealakomo, Big Island

Hawaii’s MountainsHere’s a link to the live webcam on the summit of our tallest mountain Mauna Kea (~13,800 feet high) on the Big Island of Hawaii. 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 deep low northwest, with an associated trough near Kauai…high clouds arriving from the west
(click for larger version)

 


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

 Heavy showers remain active in the vicinity of Kauai

 

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

East to southeast winds

 

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

Showers locally…some are heavy

 

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 Aloha Friday comments: I’m home here in upper Kula, Maui, Hawaii

Good day everyone, I hope you have a great Friday wherever you happen to be spending it.

42aam, it’s mostly clear this morning here in Kula, with a low temperature of 58 degrees at my place.

542am, the higher level clouds are lighting up a spectacular pink color at sunrise!

107pm, it’s partly to mostly cloudy across Maui County, and for most of the state for that matter. Here on Maui I see some sunshine down in the central valley, and along some of the coastal areas too. The long lasting front/trough of low pressure over Oahu, continues to receive the brunt of the ongoing rainfall…they’ve been soaked to the bone for several days now…at least locally.

718pm, with the multi-level clouds overlying most of the state, at least here in Maui County,the sunset was an wonderful shade of gray, orange/pink…and a wine color near the center!

1010pm, a dense blanket of fog just arrived, as I prepare to go to bed. My high temperature today here in upper Kula was a warm and rather muggy 76.5 degrees.

Flooding threat remains over Kauai County / A kona low far north of the state will gradually weaken and associated rain bands are expected to linger over western portions of the state. The flash flooding threat shifts toward Kauai, where multiple waves of heavy rain are possible through Saturday night. Heavy showers within these bands may repeatedly move in from the south, with high rainfall rates leading to flash flooding, especially over the typically leeward areas. The trend has been for the band to shift west of Kauai earlier, which may lead to quicker improvement in weather conditions by Sunday.

As the flash flood threat continues to shift farther west, only Kauai County remains under a Flood Watch. Moderate to heavy showers are possible elsewhere in the state, particularly Saturday and Sunday afternoons, but significant flash flooding is not anticipated.

 

Hawaii’s Broad Brush Weather Overview:  A kona low north of the state will continue drawing unstable tropical moisture northward over the islands into Saturday. Bands of showers producing moderate to heavy rain and isolated thunderstorms will move over the central and western islands.

The kona low will begin to drift away from the state this weekend, with improving trends spreading from east to west. Enhanced rainfall may linger over Kauai and Niihau into Sunday. By Monday all islands will see a dramatic improvement in weather conditions as easterly trade winds return.

Hawaii’s Weather Details:  Satellite imagery shows a kona low located well northwest of Kauai. A decaying stationary front is currently located over Oahu, which is serving as a focus for moderate to locally heavy showers. Radar estimates and rain gauges are showing that rainfall rates are currently in the 1-2 inch per hour range, which has resulted in some nuisance flooding and elevated streams across Oahu.

24 hour rainfall totals across Oahu have exceeded 10 inches in some locations, and the ground remains highly saturated and susceptible to runoff and flooding, should heavy rain continue to move over the island. A Flood Watch remains in effect for Niihau, Kauai, and Oahu, but changes to the watch area are likely with time…stay tuned for additional updates to the weather conditions.

Latest guidance and radar trends suggest that this main band of rain will slowly move west, focusing mainly within the Kauai Channel and eventually the island of Kauai. The main change to the previous forecast has been to slow this westward progression a bit, although conditions should improve across Oahu soon.

Focus will then shift to Kauai, where this rain band will provide widespread moderate with pockets of heavy rain to the Garden Isle through at least Saturday. The main consideration for the island of Kauai will be how long the band lingers over the island before moving off to the northwest, as the kona low exits the region.

While consensus is that conditions will begin to improve by early Sunday, the flooding concerns could linger a bit longer should this be a slower transition. Models also are hinting that one last moisture surge back towards Oahu is possible Saturday night, although confidence is low in this occurring at the moment.

High pressure will slowly build into the area this weekend, as the kona low exits to the north. Expect more stabilizing trends with decreasing showers as east to southeast winds spread across the state. Likely by Sunday, the moderate to heavy rainfall threat will diminish over Kauai, as more stable conditions fill in across the state.

More typical easterly trade winds will return across the state from Monday onward, with only brief passing showers in the forecast, favoring the typical windward and mountain areas 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

Hawaii’s Marine Environment:  Fresh to locally strong south to southeast winds associated with a kona low northwest of the state will persist. A shift out of the east to southeast direction is expected over the weekend through early next week, as it lifts northward and away from the area.

A Small Craft Advisory remains in effect for the windward and leeward Big Island waters (Hamakua Coast and waters near South Point). In addition to the winds, expect locally rough seas in heavy showers or storms that develop, with the best chances being over the waters west of Maui County. Seas should remain just below the advisory level over the exposed Kauai waters as a northwest swell moves through (downward trend expected this weekend).

Surf along south facing shores will remain up through early next week, due to overlapping south-southwest swells expected. The first swell has filled in and will peak, likely holding at the advisory level into Saturday, before briefly lowering.  Expect rough conditions for most southerly exposures, due to a combination of the onshore winds, swell, and periodic heavy showers moving through.

As a result, a High Surf Advisory remains in effect through Saturday. A fresh south-southwest swell will begin to fill in through the day Sunday, then peak at a similar level early next week, before easing through mid-week.

Surf along north and west facing shores will remain up into Saturday, due to a northwest swell generated from the kona low. This swell will lower over the weekend.

Surf along east facing shores will remain well below average through the weekend. An upward trend is possible next week, as the trades return locally and far upstream over the eastern Pacific.

 

The 5 Most Beautiful Scenic Wonders of Oahu

 

 

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

>>> Tropical cyclone formation is not expected during the next 7 days…for the areas above

Northeastern Pacific: There are no active tropical cyclones

South of the coast of southwestern Mexico

>>>  An elongated area of low pressure located several hundred miles offshore of the coast of southwestern Mexico continues to produce a small area of showers and thunderstorms. Marginal environmental conditions due to nearby dry air are likely to limit significant development of this system as the low remains nearly stationary during the next day or so. By late this weekend, the low is forecast to interact or merge with another system to its east, and further development is not expected.

* Formation chance through 48 hours…low…20 percent
* Formation chance through 7 days…low…20 percent

South of the coast of southern Mexico

>>> Disorganized showers and thunderstorms continue several hundred miles to the south of the coast of southern Mexico in association with a trough of low pressure. Development of this system, if any, should be slow to occur as it moves slowly westward during the next few days.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…low…20 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:

Tropical Cyclone 24S (Laly)…is located approximately 629 NM north-northeast of Antananarivo, Madagascar

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:  Now We Know, What Gets Roots to Grow: Can Help in Future Droughts

A biological mechanism familiar to people who fast helps plant roots grow strong. The discovery by University of Copenhagen scientists provides an answer to a long-unanswered question and a deeper understanding of the “mouths” of plants that can help to develop climate-resilient crops.

Imagine eating with your feet and having half your body underground. Such is the life of most plants, with roots as the mouths through which they eat and drink. Roots also serve to anchor plants and keep them safe in wind and rain. Indeed, roots are critical for a plant’s life.

But many things remain unknown about the life of plants. How they grow their roots big and strong has long been a question and there are key pieces missing to the puzzle.

In a new study published recently, researchers from the University of Copenhagen’s Department of Biology share their discovery of how plants control root growth.

Read more at University of Copenhagen – Faculty of Science