Hawaiian Islands Satellite Interpretation Message

Hawaiian Islands Satellite Interpretation Message
Tue, 14 Dec 2010 12:00:00 -0600

Based on data through 1730 UTC December 14 2010.

Skies are nearly clear across most of the aloha state this morning. The few areas where low cloud ceilings prevail include windward sections of Oahu, and the Puna and Hilo districts, and a small portion of north Kona, on the Big Island. Low cloud motion is from the east statewide, near 15 mph just east of the Big Island and slowing to under 10 mph moving up the chain to Kauai.

A cluster of scattered to broken low clouds exists just east of the Big Island and is heading west with the prevailing trade flow, while a small area of broken low clouds is immediately west of north Kona and leeward Kohala. A thin band of broken low clouds oriented north to south is just north and northeast of Oahu. Conditions are otherwise clear to scattered in the adjacent coastal waters.

West of the islands is a large swath of broken to overcast multilayered clouds with embedded showers and thunderstorms. The cloudiness is associated with frontal boundaries far north and west of state. Most of the showers and thunderstorms are currently within 200 miles either side of a line from 30°N 160°W to 25°N 174°W to 09°N 179°E.

Convection is firing along the intertropical convergence zone far south of Hawaii. Most of this unorganized activity is located from 06°N to 10°N east of 163°W.

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KINEL

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City and County of Honolulu News Releases

You are here:  Main / Customer Services / Public Communications Division / 2010 / 2010 Honolulu City Lights - The celebration continues through the month of December

FOR IMMEDIATE RELEASE                                                              December 13, 2010   2010 HONOLULU CITY LIGHTS The celebration continues through the month of December               The 2010 Honolulu City Lights celebration continues at Honolulu Hale through the month of December with lots of holiday attractions for the entire family.  Mark your calendars for these special events, brought to you by the generous sponsors of Honolulu City Lights.   ·       December 16, 17, and 18 – Café Cruiser serves hot chocolate to island families from 4:30 to 8:30 p.m. in the flagpole area in front of the Fasi Municipal Building.  This yummy beverage break is brought to you by ING DIRECT.   ·       December 17 – HAWAII FOODSERVICE ALLIANCE  and Kraft Foods Hawaii offer free milk and cookies to everyone from 6:30 to 8:30 in front of Honolulu Hale.   ·       December 18 – KRAFT FOODS HAWAII, sponsors of the whimsical Gingerbread House in the Honolulu Hale Courtyard, will provide a 5 x 7 photo with Santa free from 7 to 9 p.m.  The Clowns of Aloha will be on hand to entertain keiki with balloon art, face painting and glitter tattoos.     ·       December 13 – 25 – Santa continues to hear children's wishes in the Gingerbread House in the Honolulu Hale Courtyard from 7 to 9 pm until Dec. 23.   ·       Christmas tree and wreaths on display from 8 a.m. until 11 p.m. at Honolulu Hale courtyard and Lane Gallery.               While you're at Honolulu Hale, donate to the annual Toys for Tots drive and make this Christmas merrier for a child.      ·       The TOYS FOR TOTS collection corner at the Honolulu Hale Courtyard is open each day through December 18.  Please excite a child this Christmas with an unwrapped new toy and drop it off near the makai entrance of the Courtyard.    ·       December 17 – The Pacific Outpost 501st Legion of Stormtroopers will help collect toys for Toys for Tots.  Bring a new, unwrapped toy on December 17, from 6 to 9 p.m. and take a picture with your favorite character from Star Wars.               -30-

Hawaiian Islands Satellite Interpretation Message

Hawaiian Islands Satellite Interpretation Message
Mon, 13 Dec 2010 23:30:00 -0600

Based on data through 0500 UTC December 14 2010.

The most noticeable cloud feature across the central north Pacific is a ragged 300 to 500 mile wide band of overcast layered clouds north of a line from 35°N 140°W to 30°N 155°W to 20°N 166°W to 14°N 180°W. This band extends farther to the northeast, reaching northern California and the Pacific northwest section of the mainland. Isolated cumulonimbus, CB, are embedded within the leading edge of the main layered cloud band, with the closest CB about 300 miles northwest of Kauai. Breakaway segments of high clouds have pushed southeast of the main cloud band, reaching Kauai and surrounding waters this evening. However, the main cloud band appears to be nearly stationary.

Southeast of the cloud band, low level flow appears to be governed by a surface ridge with an axis extending roughly through 34°N 140°W and 26°N 155°W. This places the main Hawaiian islands at the western periphery of the ridge and light southeast to northwest low cloud motion is noted there.

Low cloud cover is decreasing across the islands as evening cooling sets in. Kauai, Oahu, Lanai and the Big Island all appear to have scattered low clouds to clear skies. Molokai has scattered to broken low clouds across its central third which are sloughing off to the north. Broken to overcast low clouds persist across west and northeast-facing Haleakala slopes on Maui, as well as across the Maui saddle and the mountains of west Maui. Cloud cover across local waters is generally scattered to clear.

Isolated CB are embedded within broken to overcast layered clouds east of 154°W between 06°N and 12°N. Additional isolated CB are noted west of 175°W between 08°N and 13°N.

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POWELL

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Hawaiian Islands Satellite Interpretation Message

Hawaiian Islands Satellite Interpretation Message
Mon, 13 Dec 2010 18:00:00 -0600

Based on data through 2330 UTC December 13 2010.

Convective low clouds from the heating of the day have been forming over the aloha state this early afternoon. Ceilings have been favoring mauka, upslope and interior sections of the individual isles. This has been especially the case over east Maui and the Big Island as of bulletin time. Other areas are sunny to partly cloudy. Low cloud motion is near 15 mph statewide, from the east-southeast just east of the Big Island and veering to the south-southeast moving up the chain to Kauai.

Areas of scattered to broken low clouds are passing by north of the Big Island and Maui county, and to the west of the Big Island. Conditions are clear to scattered elsewhere in the adjacent coastal waters.

The leading edge of showers and thunderstorms ahead of a front is about 400 miles west-northwest of Kauai, and has been heading east near 10 mph over the past six hours. Most of the convection is currently within 90 miles either side of a line from 30°N 161°W to 21°N 168°W to 18°N 176°W to 16°N 180°.

Showers and thunderstorms remain fairly weak and widely separated along the intertropical convergence zone far south of Hawaii. Most of the activity is located from 06.5°N to 10°N between 136°W and 155°W, and from 07°N to 10°N west of 175°W.

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KINEL

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Hawaiian Islands Satellite Interpretation Message

Hawaiian Islands Satellite Interpretation Message
Mon, 13 Dec 2010 12:00:00 -0600

Based on data through 1730 UTC December 13 2010.

Low ceilings, some with embedded showers, are prevalent in coastal and upslope areas of the Kau, Puna, and Hilo districts on the Big Island this morning, and to a lesser extent Hamakua. Broken low cloudiness has also been affecting, at least from time to time, upslope sections of east Maui, and mauka portions of west Maui, Molokai and Lanai. Skies are otherwise clear to partly cloudy. Low cloud movement is near 15 mph across the aloha state, from the east-southeast near the Big Island and veering to south- southeast moving up the chain to Kauai.

A band of broken showery low cloudiness, with embedded towering cumulus clouds, stretches northeastward from the Big Island and is heading northwest with the prevailing low-level flow. The band then extends just east of the isle and continues off to the south. Smaller areas of scattered to broken low clouds exist west of Kau and south Kona on the Big Island, north of Maui county, south clockwise through west of Oahu, and north of Kauai. Conditions are clear to scattered elsewhere in the adjacent coastal waters.

A line of showers and thunderstorms ahead of a front is west of the islands and has been pushing east near 15 mph over the past six hours. The leading edge of the convection is approximately 450 miles west-northwest of Kauai as of bulletin time, with most of the activity currently within 90 miles either side of a line from 30°N 163°W to 21°N 170°W to 17°N 180°.

Showers and thunderstorms are firing along the intertropical convergence zone far south of Hawaii, though most of the cells are weak and widely separated. The convection is mainly found from 06.5°N to 10°N between 136°W and 165°W, and from 06.5°N to 09.5°N west of 174°W.

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KINEL

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Hawaiian Islands Satellite Interpretation Message

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

Based on data through 0500 UTC December 13 2010.

A still discernible frontal band extended through 30°N 140°W to 26°N 152°W. A low level convergence zone was lying immediately southeast of the frontal band and extended from 30°N 140°W to 24°N 150°W. Broken to overcast low to mid level clouds along these two features were common within the area bounded by points 23°N 150°W, 27°N 150°W, 30°N 143°W and 30°N 138°W.

Remnant clouds from the tail end of the old front continued as scattered to broken low clouds from 26°N 152°W to 23 160°W. A more substantial amount of mostly broken low clouds associated with the convergence zone east of the state was spreading out toward the islands. These low clouds were common within a triangular region bounded by the Big Island, 24°N 150°W and 15°N 154°W.

Some clouds from this area immediately east of the Big Island were sliding toward the northwest and just skirting the windward or east sides of the island chain. Also, a handful of small, short-lived type of towering cumulus and/or thunderstorms were noted within this cloud area from 21°N 151°W to 19°N 152.5°W. Tops of these unstable cloud features were between 25000 and 27000 feet. Elsewhere, cloud tops near the islands were generally in the 10000 to 13000 feet range.

A weak upper low in the vicinity of 16°N 150°W was moving slowly east. This upper low was generating a swath of layered clouds including cirrus generally between 15°N and 20°N from 140°W to 150°W.

Another large frontal system northwest of the state was inching its way toward us. The front currently extended through 30°N 172°W and 23°N 180°E. The associated cloud band was about 300 miles wide. Broken low clouds ahead of the front in the area between 162°W and 170°W, north of 23°N, were flowing northward in towards the approaching front.

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Hawaiian Islands Satellite Interpretation Message

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

Based on data through 1800 UTC December 12 2010.

Two major cloud features are immediately noticeable within the central north Pacific basin this morning. The first feature is an area of overcast layered clouds east of a line from 33°N 140°W to 20°N 151°W to 10°N 156°W. The second feature is also an area of overcast layered clouds, but north of a line from 21°N 180°W to 33°N 160°W, and south of a line from 33°N 160°W to 42°N 180°W. Both features mark frontal boundaries east and west of the main Hawaiian islands, respectively.

Smaller cloud features include a ragged 90 to 120 mile wide band of overcast layered clouds with embedded isolated cumulonimbus, CB, north of a line from 18°N 166°W to 13°N 180°W. The intertropical convergence zone is marked by a 120 mile wide band of isolated CB north of a line from 07°N 157°W to 05°N 140°W. This band thins a bit and loses the CB north of a line from 07°N 157°W to 04°N 170°W to 04°N 180°W.

First visible imagery shows broken low cloud cover across windward Hawaiian waters west of Maui. Scattered to broken low clouds also lie east of the Big Island. Kauai has broken low clouds across its eastern half, while Oahu has broken low clouds only across the Koolau summits. Scattered to broken low clouds lie across the eastern tip of Molokai, but Lanai and Maui appear to be free of low clouds. Scattered to broken low clouds dot skies across Puna district of the Big Island, leaving the rest of that island beneath clear skies. Snowcaps on the Mauna Loa and Mauna Kea summits are clearly visible.

Satellite loop shows low clouds moving across Hawaiian waters generally toward the west at 10 to 15 mph. There is a bit of veering from east to west across the islands.

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POWELL

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