Air Temperatures – The following maximum temperatures (F) were recorded across the state of Hawaii…along with the minimum temperatures for Friday:
84-76 Lihue, Kauai
86-73 Honolulu, Oahu
85-66 Kahului, Maui (Record high for the day 90 degrees…back in 1957)
86-71 Kailua Kona
77-65 Hilo, Hawaii
Here are the latest 24-hour precipitation totals (inches) for each of the islands, as of Friday afternoon:
0.82 Mount Waialeale, Kauai
0.16 Punaluu Stream, Oahu
0.04 Puu Alii, Molokai
0.62 Puu Kukui, Maui
0.96 Pahoa, Big Island
The following numbers represent the strongest wind gusts (mph)…as of Friday afternoon:
25 Port Allen, Kauai
27 Kahuku Trng, Oahu
29 Kahului AP, Maui
32 Upolu AP, 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.
Trade winds gradually lighter into the weekend,
shifting to the southeast ahead of a cold front
arriving late Sunday into Tuesday, followed
by cool northerly winds veering to trades by
the middle of next week…bringing typical
trade wind weather conditions for the
Small Craft Wind Advisory…windiest coastal and
channel waters from Maui County to the Big Island
~~~ Hawaii Weather Narrative ~~~
Our trade winds will remain locally gusty…although gradually becoming lighter over the next couple of days. Here’s the latest weather map, showing the Hawaiian Islands, and the rest of the North Pacific Ocean, along with a real-time wind profiler of the central Pacific. We find a high pressure system to the northeast, which is the source of our trade wind flow. At the same time, we see an unusually long cold front stretched out across much of the Pacific Ocean, located to the northwest. Our winds will become lighter through the weekend from the southeast, prompted by the approaching cold front. Stronger north to northeasterly winds will arrive in the wake of the front…bringing cooler weather for a couple of days. The trade winds should return by next Wednesday, lasting for several days at least.
Satellite imagery shows the islands are mostly clear to partly cloudy, although with some cloudy areas and a few showers here and there. The satellite images above show fairly stable looking clouds being carried in our direction by the trades, in addition to the approaching high level cirrus clouds just to the south of the state. Here’s the looping radar image showing whatever showers that are around today, most of which are to the south of the Big Island at the time of this writing. We see the clouds associated with the approaching cold front well to the northwest as well. The cold front, which likely won’t be as wet as previously thought, will arrive later Sunday into Monday and Tuesday. As the trade winds take back over by the middle of next week, we’ll see a modest increase in windward showers. I’ll be back with updates on all of the above, I hope you have a great Friday wherever you happen to be spending it! Aloha for now…Glenn.
World-wide tropical cyclone activity:
>>> Atlantic Ocean: There are no active tropical cyclones
Here’s a satellite image of the Atlantic Ocean
>>> Caribbean Sea: There are no active tropical cyclones
>>> Gulf of Mexico: There are no active tropical cyclones
Here’s a satellite image of the Caribbean Sea…and the Gulf of Mexico.
>>> Eastern Pacific: There are no active tropical cyclones
Here’s a wide satellite image that covers the entire area between Mexico, out through the central Pacific…to the International Dateline.
Here’s the link to the National Hurricane Center (NHC)
>>> Central Pacific: There are no active tropical cyclones
Here’s a link to the Central Pacific Hurricane Center (CPHC)
>>> Northwest 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: Can Volcanic Eruptions Slow Global Warming? - Small volcanic eruptions might eject more of an atmosphere-cooling gas into Earth’s upper atmosphere than previously thought, potentially contributing to the recent slowdown in global warming, according to a new study.
Scientists have long known that volcanoes can cool the atmosphere, mainly by means of sulfur dioxide gas that eruptions expel. Droplets of sulfuric acid that form when the gas combines with oxygen in the upper atmosphere can remain for many months, reflecting sunlight away from Earth and lowering temperatures. However, previous research had suggested that relatively minor eruptions—those in the lower half of a scale used to rate volcano “explosivity”—do not contribute much to this cooling phenomenon.
Now, new ground-, air- and satellite measurements show that small volcanic eruptions that occurred between 2000 and 2013 have deflected almost double the amount of solar radiation previously estimated. By knocking incoming solar energy back out into space, sulfuric acid particles from these recent eruptions could be responsible for decreasing global temperatures by 0.05 to 0.12 degrees Celsius (0.09 to 0.22 degrees Fahrenheit) since 2000, according to the new study accepted to Geophysical Research Letters, a journal of the American Geophysical Union.
These new data could help to explain why increases in global temperatures have slowed over the past 15 years, a period dubbed the ‘global warming hiatus,’ according to the study’s authors.
The warmest year on record is 1998. After that, the steep climb in global temperatures observed over the 20th century appeared to level off. Scientists previously suggested that weak solar activity or heat uptake by the oceans could be responsible for this lull in temperature increases, but only recently have they thought minor volcanic eruptions might be a factor.
Climate projections typically don’t include the effect of volcanic eruptions, as these events are nearly impossible to predict, according to Alan Robock, a climatologist at Rutgers University in New Brunswick, N.J., who was not involved in the study. Only large eruptions on the scale of the cataclysmic 1991 Mount Pinatubo eruption in the Philippines, which ejected an estimated 20 million metric tons (44 billion pounds) of sulfur, were thought to impact global climate. But according to David Ridley, an atmospheric scientist at the Massachusetts Institute of Technology in Cambridge and lead author of the new study, classic climate models weren’t adding up.