Weather Alert in Hawaii
High Surf Warning issued February 4 at 3:25PM HST until February 5 at 6:00AM HST by NWS Honolulu HI
AREAS AFFECTED: Niihau; Kauai Southwest; Waianae Coast; Oahu North Shore; Maui Windward West; Kona; Kohala; Kauai North; Molokai Windward; Molokai North; Molokai West; Maui Central Valley North; Windward Haleakala
DESCRIPTION: ...HIGH SURF WARNING REMAINS IN EFFECT FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI...NORTH FACING SHORES OF MAUI AND WEST FACING SHORES OF THE BIG ISLAND... ...HIGH SURF ADVISORY REMAINS IN EFFECT FOR NORTH FACING SHORES OF THE BIG ISLAND... .Although the extra large northwest swell is now declining, surf along exposed north and west facing shores of Niihau, Kauai, Oahu, Molokai, north facing shores of Maui, and west facing shores of the Big Island will remain at warning levels this evening and tonight. Surf along these shores is expected to lower to advisory levels Thursday. Additionally, advisory level surf will remain possible along north facing shores of the Big Island through tonight. * WHAT...For north facing shores, surf of 20 to 30 feet this evening, lowering to 20 to 25 feet by early Thursday morning. For west facing shores of Niihau, Kauai, Oahu, and Molokai, surf of 15 to 20 feet. For west facing shores of the Big Island, surf of 8 to 12 feet. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, Molokai, north facing shores of Maui, and west facing shores of the Big Island. * WHEN...Until 6 AM HST Thursday. * IMPACTS...High. Expect very strong breaking waves and powerful currents. Waves breaking in channel entrances may make navigating the channels dangerous.
INSTRUCTION: Stay away from the shoreline along the affected coasts. Be prepared for road closures. Postpone entering or leaving channels affected by the high surf until the surf subsides.
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Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
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