Hawaiian Islands Satellite Interpretation Message

Hawaiian Islands Satellite Interpretation Message
Thu, 23 Dec 2010 12:30:00 -0600

Based on data through 1800 UTC December 23 2010.

Water vapor imagery shows an upper level ridge axis west of the state, centered near 170°W. A shortwave trough is located on the eastern side of the ridge, extending from 25°N 150°W to 21°N 163°W, or passing near Kauai. This trough is moving to the southeast at 30 mph. An area of broken to overcast layered clouds is located to the southeast of the trough, covering a portion of the main Hawaiian islands. These clouds are located generally from 15°N to 23°N between 148°W and 158°W. Isolated cumulonimbus clouds are embedded within the layered clouds, with cloud tops extending up to 42000 ft. The individual cumulonimbus cells are nearly stationary. However cirrus debris from the convection is moving to the east at 30 mph.

A second shortwave trough is located farther north near 30°N 159°W. This trough is moving to the southeast at 20 mph. Isolated cumulonimbus clouds are located ahead of the trough, generally between 156°W and 159°W north of 28°N. Cloud tops extend up to 45000 ft. Broken middle and high level clouds are located through the same area, generally between 154°W and 160°W north of 27°N. These layered clouds are moving to the southeast at 40 to 50 mph.

Across the main Hawaiian islands, Niihau, Kauai, and Oahu are mostly clear. Broken low clouds cover the western coast of Molokai, with just scattered clouds across the interior. Broken low clouds cover southern sections of Lanai, and the south coast of west Maui southeast from Lahaina. Broken low clouds also cover a portion of the central valley and the leeward slopes of Haleakala from Paia to Ulupalakua to Kipahulu. These low clouds also extend offshore across the leeward coastal waters of Maui county and across the Alenuihaha channel. Broken low and middle level clouds cover much of the Big Island. The clouds are thickest from north Kohala to northern sections of south Kona district, and across Puna and Kau districts. These clouds extend well offshore to the south and east of the Big Island, as described above.

Farther west of the area, water vapor imagery shows a deep upper level longwave trough located near 30°N 175°E. A cold front associated with this trough is located near the international dateline, and a broken to overcast area of deep layered clouds is associated with the cold front. The leading edge of this frontal band extends from 30°N 170°W to 20°N 175°W to 16°N 180°, or from 450 miles northeast of Midway atoll to 600 miles south southeast of Midway to 900 miles south southwest of Midway. The band is over 500 miles wide near 30°N, tapering down to 300 miles wide near 16°N. While the overall band is moving to the east at 10 to 15 mph, individual cloud elements are moving to the north northeast at up to 50 mph.

Scattered cumulonimbus clouds are embedded within the layered clouds. Convective cloud tops extend up to 48000 ft. The cumulonimbus clouds are organized into two distinct bands. The leading band extends from 30°N 171°W to 20°N 176°W, and a second band extends from 30°N 175°W to 19°N 180°. An additional area of cirrus and cirrocumulus clouds extends east from the main frontal band, and is located generally north of 20°N west of 166°W. These high clouds are moving to the south southeast at 50 mph.

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Hawaiian Islands Satellite Interpretation Message

Hawaiian Islands Satellite Interpretation Message
Thu, 23 Dec 2010 06:30:00 -0600

Based on data through 1200 UTC December 23 2010.

An upper level low is noted on water vapor imagery near 43.1°N 145.3°W, about 1675 miles north northeast of Kauai at 2 am. The leading edge of low clouds associated with the surface front of this system are about 700 miles north of Kauai overnight.

Instability near the main Hawaiian islands continues to spark some thunderstorms in the area. Most of the thunderstorm activity is part of an area of clouds east of the islands, along a line from 23.7°N 154.2°W to 15.9°N 150.5°W, with thunderstorm activity mostly found north of 20°N, with cloud tops near 40000 feet. Additional clouds are found over the Alenuihaha channel and the Big Island, with the clouds over the channel including a thunderstorm at 2 am with tops also near 40000 feet.

The clouds over the Alenuihaha channel spread over Kahoolawe at 2 am, and are spreading to the north and east over the slopes of Haleakala, and towards Lanai. Elsewhere in Maui county, just a few clouds are found. On Oahu, scattered clouds are passing overhead, while a few clouds are found over Kauai and Niihau. Low clouds near the islands are moving from the south southeast around 10 mph.

Water vapor imagery shows another upper level low more than 1800 miles northwest of Kauai overnight. A surface front associated with this upper low has layered clouds with embedded thunderstorms. Thunderstorm tops are reaching near 46000 feet. The leading edge of the layered clouds is about 700 miles northwest of Kauai at 2 am.

Additional isolated thunderstorms have formed in the ITCZ south of the islands. These thunderstorms are centered along a line from 8.8°N 144.1°W to 7.9°N 166.7°W, and have tops reaching near 47000 feet.

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Hawaiian Islands Satellite Interpretation Message

Hawaiian Islands Satellite Interpretation Message
Wed, 22 Dec 2010 23:30:00 -0600

Based on data through 0500 UTC December 23 2010.

Water vapor imagery shows an upper level low about 1800 miles northwest of Kauai this evening near 34.9°N 174.0°E. The layered cloud band, roughly 585 miles wide, associated with this system surface front have thunderstorms embedded within the band. The leading edge of this band is about 850 miles west of Kauai this evening. Another upper level low is noted on water vapor nearly 2375 miles north northeast of Kauai, near 52.8°N 159.7°W. Clouds associated with this systems surface front are about 775 miles north of Kauai.

The remains of a front remain anchored to the northeast of the main Hawaiian islands this evening. Layered clouds associated with this old front lie along a line from 23.6°N 155.1°W to 19.3°N 153.1°W, with lower clouds found to the south.

Low clouds near the islands are moving from the southeast around 10 mph.

Clouds continue to cover most of the Big Island with isolated thunderstorms. Fewer clouds are found over the remaining main Hawaiian islands at 7 pm. Just a few clouds are found passing over Kauai and Niihau. On Oahu, towering cumulus are found over both the Koolau and Waianae ranges. Scattered clouds are found over the islands of Molokai, Lanai and Kahoolawe. Clouds are more concentrated over Maui, with clouds covering most of the island at 7 pm.

Two areas of thunderstorms are noted in the ITCZ far south of the islands. The first area is centered on a line from 9.5°N 150.9°W to 7.4°N 156.7°W with tops reaching near 51 thousand feet. The other area is centered near 7.9°N 163.9°W with tops near 43 thousand feet.

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City and County of Honolulu News Releases

You are here:  Main / Customer Services / Public Communications Division / 2010 / Reminder For City Council District I Voters

REMINDER FOR CITY COUNCIL DISTRICT I VOTERS           (Wed., Dec. 22, 2010)—Mayor Peter Carlisle and City Council Chair Nestor Garcia today expressed their wishes for a safe and happy holiday season to all Oahu residents, and reminded those living in the area from Ewa to Makaha to cast ballots in the Special Election for Council District I to replace former Councilmember Todd Apo.            "We recognize that it's the holiday season and this time of the year can be very busy for many people," Carlisle said. "At the same time, we also encourage the people of District I to participate in the election process."              "District I is arguably the most dynamic of the nine council districts," Garcia added. "It houses the only two operating landfills in the City and County, a major sewage treatment facility, the only major new hotel under construction on Oahu, the planned starting point for the rail transit system, an acute problem with homelessness, and it has experienced arguably the greatest growth over the past decade."             The Honolulu City Clerk's Office, which supervises all City elections, said of the nearly 48,000 ballots mailed out, about 8,000 have been returned. This represents about 17 percent of the total and trails the return rate of two previous special council elections. After the first seven days in the Special Election for Council District III in 2009, the return rate was 33 percent. The Special Election for Council District V, also held in 2009, had a return rate of 29 percent after the first week.              Mail-in ballots must be received by Dec. 29, 2010. Any voter who requires a replacement ballot or the use of an accessible voting machine may vote at Kapolei Hale or Honolulu Hale until December 27, 2010 between 8:00 a.m. and 4:00 p.m. Voters can also cast their ballots on Christmas Day, December 25, between 10:00 a.m. and 2:00 p.m.              For more information, go to http://www.honoluluelections.us/ -30- Media Contact:  Louise Kim McCoy, Mayor's Office, 768-7798

Hawaiian Islands Satellite Interpretation Message

Hawaiian Islands Satellite Interpretation Message
Wed, 22 Dec 2010 18:30:00 -0600

Based on data through 0000 UTC December 23 2010.

Water vapor imagery shows a broad upper trough over the central Pacific, with a number of embedded shortwave troughs moving across the region. One upper level trough is located near 24°N 158°W, or about 200 miles north of Oahu. This shortwave is moving to the east southeast at 20 mph. A cloud band associated with a dissipating front is located near the shortwave, or just northeast of the main Hawaiian islands. The band is up to 300 miles wide, and the western edge extends from 30°N 163°W to 17°N 151°W to 17°N 140°W. The band is composed primarily of broken cumulus and stratocumulus elements, but with areas of mixed layered clouds along the western edge. One area of deeper clouds is located ahead of the shortwave, beginning about 80 miles north northeast of Oahu. Broken layered clouds with embedded cumulonimbus elements are located along the western edge of the cloud band generally between 147°W and 158°W. Cloud tops extend up to 40000 ft.

Farther upstream to the northeast, patches of broken to overcast low clouds are located behind the frontal cloud band. These clouds are composed primarily of showery open cell cumulus elements south of 24°N, and more stable closed cell cumulus elements north of 24°N. Cloud motions are to the northwest at 10 to 15 mph south of 26°N, and to the northeast at 10 to 15 mph north of 26°N.

Another upper level trough is located near 15°N 152°W, or about 400 miles southeast of the Big Island. This trough is moving to the east southeast at 20 mph. Isolated cumulonimbus clouds are located east of this trough, and are located generally from 14°N to 16°N between 148°W and 151°W. Convective cloud tops extend up to 44000 ft. The cumulonimbus clouds are nearly stationary, although nearby cirrus clouds are moving to the east at 35 mph.

A third upper level trough is located near 21°N 171°W, or about 650 miles southeast of Midway atoll. This trough is moving to the east northeast at 30 mph. Isolated cumulonimbus clouds are located east of this trough, generally from 19°N to 23°N between 163°W and 170°W. Cloud tops have warmed, and now extend up to 36000 ft. Individual cumulonimbus clouds are nearly stationary. Patches of broken cirrus and cirrostratus clouds are located through this area as well. These high clouds are moving to the east at 30 mph.

Farther west, a larger area of broken to overcast layered clouds is located north of 14°N along the international dateline. The thick layered clouds extend as far east at 176°W. Scattered cumulonimbus clouds are embedded within this line. Cloud tops extend up to 48000 ft. Broken cirrus and cirrocumulus elements extend farther east from the main area of layered clouds, generally as far east as 173°W.

Across the main Hawaiian islands, broken low clouds cover the interior of Kauai. Broken low clouds also cover the interior of Niihau, and extend 20 miles offshore to the west northwest. Broken low clouds cover the slopes of the Koolau and Waianae ranges on Oahu, as well as portions of the interior of the island. Broken to overcast low clouds cover much of Maui county and the adjacent coastal waters, with only a few clear sections across southern Molokai west of Kaunakakai. Broken to overcast low clouds also cover most of the Big Island, including the summits of Mauna Loa and Mauna Kea.

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Hawaiian Islands Satellite Interpretation Message

Hawaiian Islands Satellite Interpretation Message
Wed, 22 Dec 2010 12:30:00 -0600

Based on data through 1800 UTC December 22 2010.

Water vapor imagery shows a broad upper trough over the central Pacific, with a number of embedded shortwave troughs moving across the region. One upper level trough is located near 25°N 159°W, or about 200 miles north of Kauai. This shortwave is moving to the east at 25 mph. A cloud band associated with a dissipating front is located near the shortwave, or just northeast of the main Hawaiian islands. The band is up to 400 miles wide, and the western edge extends from 30°N 165°W to 23°N 158°W to 16°N 151°W. The band is composed primarily of overcast cumulus and stratocumulus elements, but with areas of mixed layered clouds along the western edge. One area of deeper clouds is located ahead of the shortwave, beginning about 100 miles northeast of Kauai. Broken layered clouds with embedded cumulonimbus elements are located along the western edge of the cloud band generally between 149°W and 159°W. Cloud tops extend up to 40000 ft.

Another upper level trough is located near 15°N 155°W, or about 250 miles south of the Big Island. This trough is moving to the east southeast at 15 mph. Isolated cumulonimbus clouds are located east of this trough, and are located generally from 14°N to 16°N between 148°W and 151°W. Convective cloud tops extend up to 44000 ft. The cumulonimbus clouds are moving to the east northeast at 10 to 15 mph, while nearby cirrus clouds are moving to the east at 40 mph.

A third upper level trough is located near 21°N 173°W, or about 600 miles south southeast of Midway atoll. This trough is moving to the east northeast at 30 mph. Isolated cumulonimbus clouds are located east of this trough, generally from 19°N to 23°N between 166°W and 173°W. Individual cumulonimbus clouds are moving to the east northeast at 15 to 20 mph. Broken to overcast cirrus and cirrostratus clouds are located through this area as well. These high clouds are moving to the east and northeast at 30 to 40 mph.

Farther west, a larger area of broken to overcast layered clouds is located north of 14°N along the international dateline. Scattered cumulonimbus clouds are embedded within this line. Cloud tops extend up to 48000 ft. Broken cirrus and cirrocumulus elements extend east from the main area of layered clouds, generally as far east as 174°W.

Across the main Hawaiian islands, scattered to broken low clouds are located near the eastern and southern coast of Kauai, with clear skies across the interior of the island. Broken low clouds cover the south shore of Oahu, and southeast sections of the island east of Pearl Harbor and south of Kaneohe bay. These clouds extend offshore across the Kaiwi Channel, and also cover Lanai and western and southern sections of Molokai. Broken low clouds cover the coastal sections and central valley on Maui, and also extend across the Alenuihaha channel.

On the Big Island, broken to overcast low clouds cover north and south Kohala districts, with scattered to broken low clouds across Hamakua and north Hilo districts below 8000 ft. Broken low and middle level clouds cover south Hilo and Puna districts. Scattered to broken low clouds are located over north and south Kona and Kau districts generally below 4000 ft.

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Hawaiian Islands Satellite Interpretation Message

Hawaiian Islands Satellite Interpretation Message
Wed, 22 Dec 2010 06:30:00 -0600

Based on data through 1200 UTC December 22 2010.

Layered clouds associated with a stationary front east of the main Hawaiian islands continues to have an impact on the islands overnight. The layered cloud band extends along a line from 24.5°N 158.4°W to 19.4°N 152.3°W to 14.7°N 153.4°W. This cloud band continues to impact the Big Island, particularly the eastern half of the island. To the east through southeast of the Big Island, infrared satellite shows cloud tops reaching near 45 thousand feet.

The layered clouds mentioned above make it difficult to discern the cloud coverage over the Big Island, but it would appear that clouds cover most, if not all, of the Big Island. High clouds continue to pass over the remaining islands from time to time, but are thin enough to allow lower clouds to be seen on satellite imagery.

Low clouds near the islands are moving from the southeast between 10 and 15 mph.

Just a few low clouds are noted moving over Kauai and Niihau at 2 am. An area of high clouds passing over Oahu at 2 am covers most of the island, but based on satellite loops, scattered low clouds are found over the island. Molokai, Lanai and Kahoolawe have had more low clouds passing overhead from time to time, but just a few low clouds are evident at 2 am. Eastern Maui has scattered clouds overhead, while west Maui has just a few clouds overhead.

The thunderstorm area in the ITCZ at sunset dissipated, and another area has formed. This area is near 8.4°N 153.w, with tops reaching near 40000 feet. Another isolated area of thunderstorms is noted near 8.5°N 168.0°W with tops reaching near 42000 feet.

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