Air Temperatures – The following maximum temperatures (F) were recorded across the state of Hawaii Thursday:
84 Lihue, Kauai
88 Honolulu, Oahu
85 Molokai
89 Kahului, Maui
86 Kona, Hawaii
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 743pm Thursday evening:
Port Allen, Kauai – 81
Hana airport, Maui – 73
Haleakala Summit – 48 (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. Here’s the Haleakala Crater webcam on Maui – if it’s working.
Aloha Paragraphs

Small craft wind advisory around Maui and the Big Island
Trades continuing…increasing later this weekend into Monday
A few showers, increasing this weekend on the windward
sides…continuing into the first part of the new week –
mostly around the Big Island and Maui
The following numbers represent the most recent top wind gusts (mph), along with directions as of Thursday evening:
25 Port Allen, Kauai – NE
28 Kuaokala, Oahu – NE
29 Molokai – NE
30 Lanai – NE
30 Kahoolawe – ENE
28 Kahului, Maui – NE
27 Kealakomo, Big Island – NE
Here are the latest 24-hour precipitation totals (inches) for each of the islands as of Thursday evening:
0.17 Mount Waialeale, Kauai
0.08 Oahu Forest NWR, Oahu
0.06 Molokai
0.00 Kahoolawe
0.00 Lanai
0.55 Puu Kukui, Maui
0.58 Kawainui Stream, 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 ~~~
Little change in the strength or direction of our local trade winds…then somewhat stronger during the weekend. Here’s a weather chart showing near 1025 millibar high pressure systems located to the northwest and northeast of the islands. At the same time, there are areas of low pressure located to southwest, south, and southeast of the islands…including hurricane Henrietta. Look for moderately strong trades, with stronger gusts at times locally. As former tropical cyclone Gil, and current tropical cyclone Henrietta move way to our south…the trade winds will become stronger. The present small craft wind advisories over parts of Maui County, will likely be expanded to other areas of the state this weekend.
A few showers, increasing later Friday through the weekend…into Monday. Satellite imagery shows high cirrus clouds well offshore to our southeast. Meanwhile, there are patchy low clouds being carried our way on the trades. Here’s the looping radar image, showing just a few scattered showers in our vicinity. The models are showing fairly minor amounts of showers through most of Friday…then more showers through the weekend into early next week. These showers will be associated with the leftover moisture from now retired post-tropical Gil and tropical cyclone Henrietta. Here’s a looping satellite image that shows this tropical moisture coming towards us from the east. The leading edge of this large area of tropical moisture is located 200+ miles to our east at the time of this writing. At the same time, our atmosphere will become rather muggy, as the northern fringe of what’s left of these tropical systems move across the island chain.
Looking beyond this increasing windward shower activity, as we push into next week…drier trade wind weather will likely return by Tuesday or so. We’ll have to keep our eye peeled to the east and southeast however, as we’ll see more tropical cyclone activity beginning in the eastern Pacific with time. Case in point, this satellite image shows two areas of disturbed weather in the eastern Pacific at the moment…both of which will be westward bound. I’ll be back early Friday morning with more updates on our local weather conditions, including the latest information on hurricane Henriette, which is moving into our central Pacific now! I hope you have a great Thursday night wherever you happen to be spending it! Aloha for now…Glenn.
World-wide tropical cyclone activity:
Atlantic Ocean: There are no active tropical cyclones
TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS
Caribbean Sea: There are no active tropical cyclones
TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS.
Gulf of Mexico: There are no active tropical cyclones
TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS.
Here’s the link to the National Hurricane Center (NHC)
Eastern Pacific: There are no active tropical cyclones
SHOWERS AND THUNDERSTORMS ASSOCIATED WITH A WEAK AREA OF LOW PRESSURE LOCATED ABOUT 700 MILES SOUTHWEST OF MANZANILLO MEXICO REMAIN DISORGANIZED. HOWEVER…ENVIRONMENTAL CONDITIONS APPEAR CONDUCIVE FOR SOME DEVELOPMENT OF THIS DISTURBANCE OVER THE NEXT FEW DAYS AS IT MOVES WESTWARD AT 10 TO 15 MPH. THIS SYSTEM HAS A MEDIUM CHANCE…50 PERCENT…OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AND A HIGH CHANCE…70 PERCENT…OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 5 DAYS.
A LOW PRESSURE TROUGH LOCATED ABOUT 1600 MILES SOUTHWEST OF THE SOUTHERN TIP OF BAJA CALIFORNIA CONTINUES TO PRODUCE DISORGANIZED SHOWERS AND THUNDERSTORMS. ENVIRONMENTAL CONDITIONS ARE EXPECTED TO BE MARGINALLY CONDUCIVE FOR GRADUAL DEVELOPMENT OF THIS SYSTEM DURING THE NEXT FEW DAYS. THIS SYSTEM HAS A LOW CHANCE…20 PERCENT…OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS…AND A MEDIUM CHANCE…30 PERCENT…OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 5 DAYS AS IT MOVES WESTWARD AROUND 10 MPH.
Here’s a satellite image that shows both of these tropical disturbances
Elsewhere, tropical cyclone formation is not expected during the next 48 hours
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: Tropical cyclone Henriette remains active, here’s a graphical track map, along with a satellite image – looping view.
Here’s a link to the Central Pacific Hurricane Center (CPHC)…covering our central Pacific.
Western Pacific Ocean: Tropical cyclone 11W is now active, located approximately 362 NM north of Koror. Here’s a JTWC graphical track map…along with a NOAA satellite image.
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)
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Email Glenn James:
Emily Says:
Hey Glen,
We are huge fans of your weather forecasts and narrative. We are glad to see you had a great vacation and are back in time to forecast for our upcoming trip. This year, we want to try to catch a glimpse of the Perseid meteor showers from the summit of Haleakala. Any suggestions for clearest nights between August 11 and 13th (peak shower activity)?~~~Hi Emily, huge fans…I love that! I did have a great vacation, and am glad to be back here on Maui as usual. As for the clearest night, I’m hesitant to try and predict that at the moment. I’d say just stay tuned into what it looks like around sunset, and perhaps look at a satellite image, to try and figure that out yourselves. I don’t want to say one night over another, as I would just be guessing. Anyway, best of luck in your viewing! Aloha, Glenn
Ralph Heino Says:
Glen,
Your new “weather product” is amazing. There is so much there at one’s finger tips, a truly powerful app. You really are providing a valuable service, those who visit your site are becoming a lot better informed as to what has/is or probabilities of what might be than where we all were prior to your site. Thank you! Ralph~~~Hi Ralph, thanks for your generous acknowledgment on the morning product I do for the Pacific Disaster Center! Aloha, Glenn