Weather Alert in Hawaii
High Surf Warning issued February 24 at 3:21AM HST until February 24 at 6:00PM HST by NWS Honolulu HI
AREAS AFFECTED: Niihau; Oahu North Shore; Olomana; Maui Windward West; Kauai North; Kauai East; Koolau Windward; Molokai Windward; Molokai North; Maui Central Valley North; Windward Haleakala; Big Island East; Big Island North
DESCRIPTION: ...HIGH SURF WARNING FOR NORTH AND EAST FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI MAUI AND BIG ISLAND THROUGH THIS AFTERNOON... ...HIGH SURF ADVISORY FOR WEST FACING SHORES OF MOLOKAI MAUI AND BIG ISLAND AND FOR NORTH FACING SHORES OF LANAI THROUGH THIS AFTERNOON... .A long period north-northeast (010-030 degrees) has peaked overnight and will hold through the morning hours, producing much larger than normal surf across some coastlines, especially in windward areas. The swell will gradually decline late this afternoon through Friday. * WHAT...Along north facing shores, surf peaking at 20 to 30 feet this morning before slowly declining late this afternoon. Along east facing shores, surf peaking at 14 to 18 feet this morning before slowly declining late this afternoon. * WHERE...North and east facing shores of Niihau, Kauai, Oahu, Molokai, Maui, and Big Island. * WHEN...Until 6 PM HST this evening. * 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 Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
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
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