Weather Alert in Hawaii
Coastal Flood Statement issued September 4 at 3:18AM HST until September 7 at 6:00PM HST by NWS Honolulu HI
AREAS AFFECTED: Niihau; Kauai Southwest; Waianae Coast; Oahu North Shore; Olomana; Kahoolawe; Maui Windward West; Maui Leeward West; Kona; Kohala; Kauai North; Kauai East; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Molokai Windward; Molokai Southeast; Molokai North; Molokai West; Molokai Leeward South; Lanai Windward; Lanai Leeward; Lanai South; Maui Central Valley North; Maui Central Valley South; Windward Haleakala; Kipahulu; South Maui/Upcountry; South Haleakala; Big Island South; Big Island Southeast; Big Island East; Big Island North
DESCRIPTION: ...MINOR COASTAL FLOODING DURING THE HIGH TIDE THROUGH SUNDAY AFTERNOON FOR LOW LYING COASTAL AREAS OF ALL ISLANDS... Peak high tides associated with the lunar cycle will lead to minor coastal flooding along shorelines and low lying coastal areas during the daily afternoon high tide through Sunday. * WHAT...Isolated minor coastal flooding expected. * WHERE...Vulnerable low-lying coastal roadways, docks, boat ramps, and other coastal infrastructure of all Hawaiian Islands. * WHEN...During the afternoon hours at and around the daily peak tides through Sunday. * IMPACTS...Flooding of beaches that are normally dry, minor coastal erosion, and saltwater inundation.
INSTRUCTION: Avoid driving through flooded roadways. If you are forced to drive through salt water, be sure to rinse your vehicle with fresh water. Move electronics, vehicles or other valuables to higher ground. Monitor vessels to ensure mooring lines don't get too tight and watch out for overwash around boat ramps. Secure canoes or other watercraft stowed on beaches.
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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