Air Temperatures – The following maximum temperatures (F) were recorded across the state of Hawaii Tuesday:
84 Lihue, Kauai
83 Honolulu, Oahu
88 Kahului, Maui
86 Kailua Kona
84 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 710pm Tuesday evening:
Kailua Kona – 81
Hana airport, Maui – 73
Haleakala Summit – 57 (near 10,000 feet on Maui)
Mauna Kea Summit – 43 (13,000+ feet on the Big Island)
Hawaii’s Mountains – Here’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.
A beach on Maui’s south shore
Our winds will be light from the south, southeast and
east-southeast…with muggy and voggy conditions
continuing into the weekend or beyond
Our weather will be generally quite dry, except for
localized afternoon showers over the interior
sections, and a few along the south and southeast
sides of the islands at times too…locally heavier
on Oahu and Kauai
We may see heavier showers arriving this weekend…
especially over Kauai and Oahu – with even a possible
thunderstorm Sunday into early next week
The following numbers represent the strongest wind gusts (mph), along with directions…as of Tuesday evening:
16 Port Allen, Kauai – NE
12 Kahuku Trng, Oahu – SE
18 Molokai – E
12 Lanai – NW
12 Kahoolawe – SSW
12 Lipoa, Maui – SE
22 South Point, Big Island – NE
Here are the latest 24-hour precipitation totals (inches) for each of the islands…as of Tuesday evening (545pm totals):
0.70 Mohihi Crossing, Kauai
1.92 Makaha Stream, Oahu
0.01 Kula Branch Station, Maui
0.99 Kealakekua, 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 are coming out of the south, southeast and east-southeast, while remaining generally light through the rest of this week…into early next week. Here’s the latest weather map, showing the Hawaiian Islands, and the rest of the North Pacific Ocean, along with a real-time wind profile of the central Pacific…focused on the Hawaiian Islands. ~~~ We see a low pressure system to our north, along with a late season cold front stalled a couple of hundred miles to the northwest of Kauai. We have a moderately strong high pressure system to our northeast…with a ridge extending southwest over the Kauai end of the chain. As a result of these weather features, our local winds will remain on the light side, from the south through east-southeast. The southeasterly breezes will bring voggy and humid weather our way, which will stick around through the remainder of this week at least.
Satellite imagery shows large patches of low clouds over and around our island chain. Looking at this larger satellite image, we see the low cloud patches over the ocean, being drawn up into the islands in places. The daytime heating of the islands, coupled with the generally breezes are keeping most of the clouds over and around the mountain slopes. Meanwhile, we see the stalled cold front to the northwest of Kauai. Here’s a looping radar image, showing just generally light showers falling, most of which are falling over the ocean at the time of this writing. There have been a few heavier showers near Kauai and Oahu at times…with the Honolulu airport reporting heavy rain at 430pm late in the afternoon.
The primary reason for the unusual weather pattern we’re having is the presence of the late season cold front to our northwest…along with its parent low pressure system well north-northwest of our islands. This cold front won’t make it to our islands, although has pushed a high pressure ridge down over the the state now. This will keep our trade winds at bay for the most part, and keep our local wind flow from the south through east-southeast. These breezes will continue to usher in muggy and volcanically hazy skies over our state. We’ll find clear to partly cloudy mornings, giving way to mid-morning through early evening clouds developing over and around the interior sections. The air mass will remain quite dry and stable however, so that only spotty showers are expected in most of those upcountry areas. The exception will be the heavier showers that could fall locally over the western end of the state at times. If an upper level trough moves near the state this weekend, and its looking more and more likely, we could see some heavier showers popping-up near Kauai and Oahu, or even a thunderstorm Sunday into early next week.
The details being described above are highly unusual, as more typically we would have moderately strong trade winds blowing statewide this time of year, with a few passing showers falling along our windward coasts and slopes. The models are keeping the trade winds away for the most part until the middle of next week! Something may happen to change this absence of the trade winds, although I don’t see any signs of it at the moment. There’s a chance that we could see a day or two of light trades winds sneaking back into our area, during the Wednesday through Thursday time frame, although don’t count too heavily on this. I’ll be back again early Wednesday morning with your next new weather narrative from paradise, I hope you have a great Tuesday 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 55.8 degrees at 555am on this Tuesday morning. Skies were clear overhead, with some partly cloudy conditions around the edges. The winds are essentially calm, with light volcanic haze in the air too.
It’s early afternoon now at 110pm, under partly to mostly cloudy skies, with an air temperature of 75.9 degrees. The beaches down below, both on the north, south and west sides, look totally sunny in contrast to up here in Kula. Looking down towards the central valley, I can see light to almost moderately voggy skies. I had a dermatological appointment in Kihei this morning, and passed through Kahului on the way back upcountry. I found warm weather down there, and noticed that the Kahului airport was reporting a pretty hot 88 degrees…at the same time as I have that 75.9 degrees.
We’re into the early evening hours now at 520pm, under clear to partly cloudy skies, generally light breezes, and an air temperature of 78.4 degrees. It seems as if we might be seeing the temporary return of light trade winds here in Kula, as the afternoon clouds have been pushed away, and my wind chimes are singing out to me gently. This is the first sign of trade winds in a long time, and they may stick around for a couple of days. The volcanic haze seems to have thinned out in the process, which of course is a good thing too!
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
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 begins today, and runs through November 30th.
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: Canyons in Greenland hold a lot more glacial ice than thought - Greenland is now mostly white. Snow and ice and glaciers abound, but are shrinking as the climate warms. Turns out that some of the glaciers are found in canyons and the canyons are deeper than previously thought. Scientists at NASA and the University of California, Irvine (UCI), have found that canyons under Greenland’s ocean-feeding glaciers are deeper and longer than previously thought, increasing the amount of Greenland’s estimated contribution to future sea level rise.
“The glaciers of Greenland are likely to retreat faster and farther inland than anticipated, and for much longer, according to this very different topography we have discovered,” said Mathieu Morlighem, a UCI associate project scientist who is lead author of the new research paper. The results were published Sunday in the journal Nature Geoscience.
Ice loss from Greenland has accelerated during the last few decades. However, older ice sheet models predicted the speedup would be temporary because the glaciers would soon melt back onto higher ground and stabilize. The models therefore projected Greenland’s contribution to global sea level rise would be limited.
Morlighem’s new topography shows southern Greenland’s ragged, crumbling coastline is scored by more than 100 canyons beneath glaciers that empty into the ocean. Many canyons are well below sea level as far as 60 miles inland. Higher ground, where glaciers could stabilize, is much farther from the coastline than previously thought. The finding calls into question the idea that the recent accelerated ice loss will be short-lived.
Buried under the Greenland Ice Sheet, the subcontinent’s bedrock topography has been estimated using soundings from ice-penetrating radar. However, the wet and fractured ice along the southern coastline cluttered the radar soundings so that large swaths of the bed remained invisible. To overcome that problem, Morlighem and his colleagues devised an advanced technique to create a more accurate map. The technique makes the best use of several kinds of data: ice thickness measurements derived from airborne radar; satellite radar interferometry data on the speed and direction of ice movement: and estimates of snowfall and surface melt to the sea. By combining the different types of data, they were able to map the bed topography along Greenland’s margins with unprecedented precision and detail.