Air Temperatures The following maximum temperatures (F) were recorded across the state of Hawaii Friday:

74  Lihue, Kauai
80  Honolulu, Oahu
79  Molokai
82  Kahului, Maui
81  Kailua Kona
83  Hilo, Hawaii

Air Temperatures ranged between these warmest and coolest spots near sea level – and on the highest mountain tops on Maui and the Big Island…as of 810pm Friday evening:


Kailua Kona – 77
Poipu, Kauai
– 66

Haleakala Summit –   43 
(near 10,000 feet on Maui)
Mauna Kea Summit – 34 (13,000+ feet on the Big Island)

Hawaii’s MountainsHere’s a link to the live web cam on the summit of near 13,800 foot Mauna Kea on the Big Island of Hawaii. This web cam is available during the daylight hours here in the islands…and when there’s a big moon shining down during the night at times. Plus, during the nights you will be able to see stars, and the sunrise and sunset too… depending upon weather conditions.


Aloha Paragraphs

A well promoted cold front is moving down through the state,
bringing increased clouds and showers into the night 

will be generally light from the southwest ahead of
this cold front

In the wake of the front, cool north to northeasterly breezes
will arrive, carrying windward showers our way through
Tuesday…then a more typical trade wind weather pattern
through Thursday – with fair weather prevailing, especially
along our leeward beaches

The next cold front will approach the state Monday and Tuesday…
and then another next weekend – which could bring us gusty winds
and locally heavy rainfall, or even thunderstorms

High Surf Warning…north and west facing shores of Kauai, Oahu,
Molokai, and the north shore of Maui – into Sunday

Small Craft Advisory
…all coastal and channel waters –
through noon Sunday


The following numbers represent the most recent top wind gusts (mph), along with directions…as of Friday evening:

08  Makaha Ridge, Kauai – NNE
14  Kuaokala, Oahu – NNE
23  Molokai – NW
21  Lanai – NE
10  Kahoolawe – N
22  Hana,
Maui – NW
12  Kaupulehu, Big Island – SE

Here are the latest 24-hour precipitation totals (inches) for each of the islands…as of Friday evening (845pm totals):

0.95  Kokee, Kauai
1.60  Tunnel RG, Oahu
1.35  Molokai
1.57  Lanai
0.11  Kahoolawe
3.87  Kaupo Gap, Maui
1.67  Pahala, Big Island

We can use the following links to see what’s going on in our area of the north central Pacific Ocean. Here’s the latest NOAA satellite picture – the latest looping satellite image… and finally the latest looping radar image for the Hawaiian Islands.

~~~ Hawaii Weather Narrative ~~~

Our winds will come up from the southwest ahead of the cold front…moving down through the state into the night. Here’s the latest weather map, showing the Hawaiian Islands, and the rest of the North Pacific Ocean. Here’s a real-time wind profile of the central Pacific…centered on the Hawaiian Islands. ~~~ We continue to see several low pressure systems far north of the state, with a cold front to our northwest…moving down through the state tonight. Meanwhile, we see high pressure systems well offshore to the northeast and northwest of the state…with a ridge of high pressure extending southwest offshore to the southeast of the Big Island. Our winds will come in from the southwest as the cold front moves through the state. Our winds will veer to the north and northeast in the wake of the frontal passage, with trade winds remaining active through about next Thursday. As we get into next Friday, our winds may become quite strong and gusty from the south and southwest…ahead of another cold front weekend.

Satellite imagery shows a wide band of clouds moving down through the islands, with embedded showers…some of which will be locally heavy.
Here’s the looping radar image, showing light to moderately heavy showers moving towards the Big Island. The leading edge of the cold front has moved over Kauai and Oahu…and now over Maui County at the time of this writing. There are no expectations of thunderstorms at this time, although we may see an occasional flooding problem here and there locally. Looking at this larger satellite image, which is in the looping mode, we can see this large swath of clouds, associated with the cold front. 

This cold front passed over Kauai this morning, and over Oahu this afternoon, and is reaching Maui County early this evening…then probably bringing showers to the Big Island later tonight or early Saturday. There’s a chance that some of these showers will turn out to be quite generous at times. Looking further ahead, the models are showing another cold front moving by to the north of the state Monday and Tuesday, perhaps remaining too far north and east to bring showers down into our tropical latitudes…stay tuned. At the same time, the trade winds will be blowing, keeping off and on passing windward showers in the forecast, although nothing out of the ordinary is expected after this weekend. The leeward sides will likely have pleasant through most of the new week ahead. Looking way out into the future, we could see another late winter cold front arriving a week from today…into next weekend. Next weekend’s cold front could carry quite a punch for us, with gusty winds, heavy rain, and even thunderstorms…more of that stay tuned stuff. I’ll be back early Saturday morning with your next new weather narrative, I hope you have a great Friday night wherever you’re spending it! Aloha for now…Glenn.

Here on Maui, at the 3,100 foot elevation, at my upper Kula, Maui weather tower, the air temperature was relatively warm at 61.9 degrees at 545am on this Friday morning.
..along with light rain.

~~~ It’s now 715am here in Kula, with cloudy and foggy skies, and moderately heavy rains falling…with an air temperature of 61.9 degrees still. The NWS in Honolulu has an active Flood Advisory over our area this morning until 9am. I haven’t had any overly heavy rainfall so far, although it could arrive at any time. The winds are from the southwest, and varying between light to moderately gusty. I had to close my windows here on the leeward side of my weather tower, as the rain was coming down with quite a slant a few minutes ago. This is a rainy start to our last day of the work week, please drive carefully as you head into the office…or wherever.

~~~ We’re into the 815am time frame now, and its still cloudy, foggy, with light rain falling steadily…with an air temperature of 61.3 degrees. I just finished doing my Pacific Disaster Center work, just in case you’re interested, here’s a link to this morning’s weather product that I did for them. By the way, here’s a live webcam view from my general area here in Upcountry Maui, looking down towards the Maalaea Bay and the West Maui Mountains…and the Kihei beaches.

~~~ Now we’ve pushed into the early afternoon hours, at 1pm, under partly to mostly cloudy skies, with a few clear areas as well. We haven’t had any showers for the last several hours, although its just a matter of time before the leading edge of the cold front arrives tonight. We can see by looking at the radar image up this page, that the front has passed over Kauai this morning, and is now steadily heading southeast towards Oahu. I’m going to estimate that the frontal showers will reach the Gathering Place Island (Oahu) at some point around 130pm. I don’t see any red color in the precipitation associated with the front, or very little at this time. There are however, moderately heavy showers falling right along leading edge…then tapering off into lighter showers in its wake. It will be showery on that island during the rush hour traffic, with people getting off work, so please be careful while driving on those wet streets and freeways.

~~~ It’s 415pm on this last day of the work week, before we launch into our upcoming weekend. It’s partly cloudy here on Maui, a mix of high, middle and lower level clouds, although I can’t see any showers falling anywhere off in the distance. I can see off the north shore, and off the south and west shores too…from my weather deck here in upcountry Kula. Again we can see from the radar image up the page, that the cold front is passing over Oahu, and probably by now, is out in the channel between that island and Molokai. I’m starting to see a couple of red flecks of color in the precipitation associated with the leading edge of this cloud band. These indicate heavy showers, with the yellow showing where moderately heavy showers are falling…while the green and blue are lighter as far as intensity goes.

~~~ We’re into the early evening now at 545pm, under mixed layers of clouds, which are looking darker and darker to the west and northwest. Light rain is falling on both Kauai and Oahu, with heavy rain being reported on Molokai at the time of this writing. It’s just a matter of time before this wet weather moves over Lanai and Maui. I was sort of hoping that it would arrive before dark, so I could witness it, although it looks like it might hold off for a bit longer. I’ll certainly have rain beating down on the roof of my weather shack, I mean weather tower tonight…which is always an enjoyable sound to my ears. If things get wild this evening, or even tonight, I’ll hop back into my chair, and let you know what’s going on.

~~~ It’s now 830pm, and of course dark, with rain having started about 15 minutes ago. It’s not heavy, but sounds more like light to almost moderate as for intensity. I left the window on the north side of my weather tower open, and just had to close it, as the water was coming in on that side. Looking at the radar image up the page from here, I can see that there aren’t any heavy showers around the state, except for perhaps just a couple of small showers around Maui County…at the time of this writing. Thus, I guess this will be the last post of the day, and by the way, did you know that you can access all the narratives, back through the last 2419 days, by going to the Archived Narratives link on the left hand margin? Just in case you want to go back and check out the weather at some prior time…maybe when you were here on vacation several years ago or something.

World-wide tropical cyclone activity:

Atlantic Ocean:
The Atlantic hurricane season runs from June 1st through November 30th.
Here’s the 2013 hurricane season summary

Here’s a
satellite image of the Atlantic Ocean

Caribbean Sea:

Gulf of Mexico:

Here’s a satellite image of the Caribbean Sea…and the Gulf of Mexico.

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

Eastern Pacific:
The Eastern Pacific hurricane season runs from May 15th through November 30th. Here’s the 2013 hurricane season summary

Here’s a wide satellite image that covers the entire area between Mexico, out through the central Pacific…to the International Dateline.

Central Pacific Ocean:
The Central Pacific hurricane season runs from June 1st through November 30th. Here’s the 2013 hurricane season summary

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

North Pacific Ocean: There are no active tropical cyclones

South Pacific Ocean:
There are no active tropical cyclones

North and South Indian Oceans:
There are no active tropical cyclones

Here’s a link to the Joint Typhoon Warning Center (JTWC)

Interesting: How much water do YOU use each day? –
Many Americans are confused about the best ways to conserve water and have a slippery grasp on how much water different activities use, according to a national online survey conducted by Indiana University Assistant Professor, Shahzeen Attari. Experts say the best strategy for conserving water is to focus on efficiency improvements such as replacing toilets and retrofitting washing machines. However, the largest group of the participants, nearly 43 percent, cited taking shorter showers, which does save water but may not be the most effective action. Very few participants cited replacing toilets or flushing less, even though toilets use the most volume of water daily.

The results of the survey of 1,020 participants are detailed in the article “Perceptions of Water Use” by author Shahzeen Attari, of Indiana University Bloomington’s School of Public and Environmental Affairs. The article appeared March 2 in Proceedings of the National Academy of Sciences.

“People may be focusing on curtailment or cutting back rather than efficiency improvements because of the upfront costs involved,” Attari said. “It is also surprising how few participants mentioned retrofitting their toilets. Even though toilets use less water volumetrically than washers and showers per use, the frequency of use results in the highest water use overall.”

The survey then asked participants to estimate water used by 17 different activities such as using a carwash, taking a shower for 10 minutes, using a standard flush and so on. Results show that on average, participants underestimate water use by a factor of two, with severe underestimates for activities that use a lot of water. This is somewhat encouraging news as Americans seem to underestimate water use less than they do energy use, which was underestimated by a factor of about three, as illustrated by Attari’s previous research also published in PNAS.

Many side factors lead to better accuracy in people’s perceptions of water and energy use. For instance, participants with stronger pro-environmental attitudes have more accurate perceptions of energy use but not for water use. Being older and being male lead to more accurate perceptions of water use but not energy use. Finally, numeracy, or the ability to understand and apply numerical concepts, is an important factor for accuracy in both water and energy use perceptions.

Finally, and not surprisingly, participants had no clue about how much water was needed to produce four particular foods: rice, coffee, sugar and cheese.

“Given that we will need to adapt to more uncertain fresh water supplies, a problem that the state of California is currently grappling with, we need to find ways to correct misperceptions to help people adapt to temporary or long-term decreases in freshwater supply,” Attari said.