Air Temperatures The following maximum temperatures (F) were recorded across the state of Hawaii Thursday…along with the minimums Thursday:

81 – 73  Lihue, Kauai
86 – 74  Honolulu, Oahu

8269  Molokai AP
8671  Kahului AP, Maui
85 72  Kailua Kona
83 – 70  Hilo AP, Hawaii

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

1.33  Mount Waialeale, Kauai
0.49  Manoa Lyon Arboretum,
Oahu
0.33  Puu Alii, Molokai
0.00  Lanai
0.00  Kahoolawe
1.69  Puu Kukui, Maui
3.27  Saddle Quarry, Big Island

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

17  Poipu, Kauai
37  Oahu Forest NWR, Oahu
28
 
Molokai
25  Lanai

37  Kahoolawe
21  Kahului AP, Maui

24  Upolu AP, 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

http://weather.unisys.com/satellite/sat_ir_enh_west_loop-12.gif
Low pressure systems over the ocean far to the north…
along with their trailing cold fronts

http://www.ssd.noaa.gov/goes/west/cpac/ir4.jpg
Scattered clouds, high cirrus well south

 

http://www.ssd.noaa.gov/goes/west/hi/ir4.jpg
Clear to partly cloudy…cloudy areas windward

 

http://radar.weather.gov/Conus/RadarImg/hawaii.gif
Showers falling locally…mostly windward sides
looping radar image



High Surf Advisory…for north and west shores of Kauai,
Oahu and Molokai, and for the north shore of Maui

 

~~~ Hawaii Weather Narrative ~~~



Moderate to locally strong and gusty trades, turning somewhat lighter…strengthening again during the second half of the weekend. Here’s the latest weather map, showing the Hawaiian Islands, and the rest of the North Pacific Ocean. We find high pressure systems offshore to the northwest and northeast of the islands…with their associated ridges of high pressure well north of the islands.
At the same time, we see storm low pressure systems well offshore north-northwest and northeast of the islands, along with their associated cold fronts. The trade winds will continue, blowing generally in the moderately strong realms…although locally stronger and gusty at times. There will be a slight reduction in our trade wind speeds over the next couple of days…before they become uppity again Sunday into early next week.

Here’s a wind profile…of the offshore waters around the islands – with a closer view

Here’s the Hawaiian Islands Sulfate Aerosol animated graphic showing vog forecast

Showers falling over the windward sides…although not exclusively. The trade winds will keep active showers focused along the windward sides for the most part, although stretching over into the leeward sides at times…carried by the gusty trades. This off and on, locally wet trade wind weather pattern will continue for the time being. The computer models continue to suggest that we’ll see an upper level trough of low pressure edging over us Friday into the weekend. If this forecast holds up, we would see showers remaining quite numerous and potentially generous, particularly along the windward and mountain slopes. The models go on to show the tail-end of a cold front slipping down over the state Sunday…keeping our shower activity going into next Monday.

Marine environment detailsThe small craft advisory (SCA) has been reduced, now covering only the windier zones around Maui County and the Big Island overnight. Border line wind conditions are expected for these waters on Friday and Saturday, and a northwest swell will combine with wind waves to push seas near SCA levels.

East shore surf has dropped below high surf advisory levels, and will continue to slowly diminish Friday and Saturday. Meanwhile, the northwest swell should produce advisory level surf late Friday into Saturday.

 

 http://imgs.sfgate.com/blogs/images/sfgate/hawaii/2010/06/08/ocean624x415.jpg
Gusty trade winds

 

World-wide tropical cyclone activity:

>>> Atlantic Ocean: The last regularly scheduled Tropical Weather Outlook of the 2015 Atlantic hurricane season…has occurred. Routine issuance of the Tropical Weather Outlook will resume on June 1, 2016. During the off-season, Special Tropical Weather Outlooks will be issued if conditions warrant. Here’s the 2015 hurricane season summary

Here’s a satellite image of the Atlantic Ocean

>>> Caribbean Sea: The last regularly scheduled Tropical Weather Outlook of the 2015 Atlantic hurricane season…has occurred. Routine issuance of the Tropical Weather Outlook will resume on June 1, 2016. During the off-season, Special Tropical Weather Outlooks will be issued if conditions warrant.

>>> Gulf of Mexico: The last regularly scheduled Tropical Weather Outlook of the 2015 Atlantic hurricane season…has occurred. Routine issuance of the Tropical Weather Outlook will resume on June 1, 2016. During the off-season, Special Tropical Weather Outlooks will be issued if conditions warrant.

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 last regularly scheduled Tropical Weather Outlook of the 2015 North Pacific hurricane season…has occurred. Routine issuance of the Tropical Weather Outlook will resume on May 15, 2016. During the off-season, Special Tropical Weather Outlooks will be issued if conditions warrant. Here’s the 2015 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.

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

>>>
Central Pacific
: The central north Pacific hurricane season has officially ended. Routine issuance of the tropical weather outlook will resume on June 1, 2016. During the off-season, special tropical weather outlooks will be issued if conditions warrant. Here’s the 2015 hurricane season summary

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

>>> Northwest Pacific Ocean: No active tropical cyclones

>>>
South Pacific Ocean:
No active tropical cyclones


>>>
North and South Indian Oceans / Arabian Sea:

Tropical Cyclone 19S (Fantala) remains active in the South Indian Ocean…here’s the JTWC graphical track map, a satellite image, and what the computer forecast models are showing

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


Interesting:
Moths in cities have learned to avoid man-made light
The globally increasing light pollution has negative effects on organisms and entire ecosystems. The consequences are especially hard on nocturnal insects, since their attraction to artificial light sources generally ends fatal. A new study by Swiss zoologists from the Universities of Basel and Zurich now shows that urban moths have learned to avoid light. The journal Biology Letters has published their results.

Some insects are attracted by light while others shy away from it. Proverbial is the attraction light has on moths. Street lamps and other artificial light sources often become death traps for nocturnal insects such as moths. Either they die through direct burning or through increased exposure to predators. Mortality of urban insects can thus be 40- to 100- fold higher than in rural populations.

Artificial light affects the ecosystem of insects by interfering with their natural day-night cycle and influencing behavior patterns such as feeding and reproduction. Swiss Zoologists have now studied whether moths in the Basel region have already evolutionary adapted to the changed light conditions.

City moths are less attracted to light

Under the assumption that natural selection would favor moths with less propensity to fly to light in urban areas, the researchers examined the small ermine moth Yponomeuta cagnagella. For the experiment they collected larvae in the Basel region in areas with low light pollution such as the village Kleinlützel and in areas which have been exposed to heavy light pollution, such as Allschwil or Basel City.

The researchers then analyzed the flight-to-light behavior of almost 1050 adult moths in the lab. The results show: moths from populations that have been exposed to heavy light pollution over generations have a significantly lower propensity to move towards light sources than individuals from areas with low light pollution. Furthermore the study shows that in both types of populations the female moths were attracted to light significantly less then their male counterparts.

Darwinian adaption to urbanization

The study results suggest that natural selection has changed the animals’ behavior. Flight-to-light propensity is disadvantageous for moths in light polluted areas. Adapted moths avoid the light and thus have a survival advantage. Even though this evolutionary change reduces the high mortality by artificial light, it could also have negative implications for the community. A consequential reduced overall mobility of the insects could for example lead to reduced pollination of plants.