Debate de meteorólogos científicos
Area forecast discussion...corrected
National Weather Service Honolulu HI
830 PM HST Thursday Dec 12 2013
a front approaching the state from the northwest will keep winds
light enough over the islands allowing land and sea breezes to
develop through the weekend. Afternoon clouds and possible showers
will develop over the interior areas of the islands while the
southeast flow may bring some clouds and showers to the windward
areas at times. Wetter weather will affect Kauai and Oahu Sunday and
the rest of the state early next week as the front reaches the
a batch of low clouds carried by the easterly wind flow has
reached Maui County and Oahu earlier this evening...bringing some
showers to mainly windward areas. Day time heating under the light
wind conditions also result in afternoon convection over the
islands...though much of these clouds produced little...if
any...precipitation. Both satellite imagery as well as radar data
indicate there are more low clouds along the windward coastal areas
this evening...and these clouds will bring some more showers to the
windward areas through rest of the night into early Friday. There
are some high clouds streaming across the state as well and these
clouds may keep the skies a little more cloudy through early Friday.
Synoptic wind flow over the islands has pretty much turned southeast
at this time...as a cold front far northwest of the islands
approaches the state. Winds will remain light and variable over the
Western Islands as much of the southeast winds are blocked by the
eastern islands. This will allow land breezes to develop at night
and sea breezes during the day. Clouds will develop over the
interior sections of the islands under daytime heating...and may
bring some showers as well...while night time cooling will bring
subsidence over the islands resulting in partial clearing of the
skies. Low clouds embedded in the southeast wind flow may reach the
islands as well...affecting mainly the windward areas and bringing
some showers. The lack of winds will also lead to temperatures
feeling warmer during the day. Volcanic haze may spread over the
smaller islands in the coming days as the southeast winds carry the
particulates from The Big Island toward the northwest.
The approaching front will stall briefly in the next day or so.
Therefore this current weather pattern will persist through early
part of the weekend. This front will resume its movement over the
weekend as another cold front descending down from the North Pacific
will displace it eastward towards the state. The chance of rain will
increase over Kauai Saturday night as the front approaches...and
continue into early next week. Oahu and Maui County will see
increasing chances of rainfall by Sunday and Monday as the front
moves along. The atmosphere will also begin to destabilize as cold
air aloft associated with the system reaches the island vicinity...
bringing a slight chance of thunderstorms Sunday and Monday to the
Western Islands...then shifting to east through Tuesday.
mainly VFR conditions will prevail across the state...though low
clouds carried by the east to east-southeast low level flow may bring isolate MVFR
ceilings over east facing terrain through early Friday. No airmet is
a large northwest swell will build rapidly Friday...bringing advisory level
surf for north and west facing shores late Friday morning through
Saturday night. This swell may be large enough to bring small craft
seas conditions to the exposed coastal waters at the same time.
high surf advisory from 4 PM HST Friday to 6 am HST Sunday for
Waianae coast-Oahu North Shore-Oahu koolau-Molokai-Maui windward
west-Maui Central Valley-windward Haleakala.
High surf advisory from 10 am HST Friday to 6 am HST Sunday for
Niihau-Kauai windward-Kauai leeward.
Small Craft Advisory from 10 am Friday to noon HST Saturday for
Kauai northwest waters-Kauai windward waters-Kauai leeward
waters-Oahu windward waters-Kaiwi Channel-Maui County windward
waters-Big Island windward waters.