Weather Alert in California
Special Weather Statement issued July 30 at 8:23PM PDT by NWS Eureka CA
AREAS AFFECTED: Coastal Del Norte
DESCRIPTION: ...TSUNAMI ADVISORY IS IN EFFECT FOR THE DEL NORTE COAST... * UPDATES... There have been no significant changes since the last statement. * LOCAL IMPACTs...A tsunami capable of producing strong currents that are hazardous to swimmers, boats, and coastal structures is occurring. Widespread inundation is NOT expected. Some damage to the Crescent City harbor was reported. Note: High tide is occurring now and this will bring higher water levels. * RECOMMENDED ACTIONS... If you are located in this coastal area, move off the beach and out of harbors and marinas. Do not go to the coast to watch the tsunami. Be alert to instructions from your local emergency officials. Tsunamis are a series of waves or surges which can be dangerous for many hours after the first wave arrival. * OBSERVED TSUNAMI WAVE HEIGHTS FROM EARLIER... Crescent City California 2.7 to 4.0 ft. * PRELIMINARY EARTHQUAKE INFORMATION... An earthquake occurred at 425 PM PDT on Jul 29 2025, with a preliminary magnitude of 8.8 centered 315 miles SW of Bering Island, Komandorski at a depth of 46 miles. * TIDE INFORMATION... Humboldt Bay North Spit...Low tides of 2.1 ft at 935 AM PDT on Jul 31, and 1.7 ft at 1110 PM PDT on Jul 31. High tides of 4.7 ft at 358 AM PDT on Jul 31, and 6.3 ft at 419 PM PDT on Jul 31. Crescent City Harbor...Low tides of 2.1 ft at 927 AM PDT on Jul 31, and 1.6 ft at 1104 PM PDT on Jul 31. High tides of 4.7 ft at 349 AM PDT on Jul 31, and 6.3 ft at 405 PM PDT on Jul 31. This product will be updated as new information becomes available. Stay tuned to your local news source and NOAA weather radio for further information and updates.
INSTRUCTION: N/A
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Weather Topic: What are Cumulus Clouds?
Home - Education - Cloud Types - Cumulus Clouds
Next Topic: Drizzle
Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
becoming cumulus congestus and possibly the even taller cumulonimbus clouds.
When cumulus clouds become taller, they have a greater chance of producing precipitation.
Next Topic: Drizzle
Weather Topic: What is Evaporation?
Home - Education - Precipitation - Evaporation
Next Topic: Fog
Evaporation is the process which returns water from the earth
back to the atmosphere, and is another crucial process in the water cycle.
Evaporation is the transformation of liquid into gas, and it happens because
molecules are excited by the application of energy and turn into vapor.
In order for water to evaporate it has to be on the surface of a body of water.
Next Topic: Fog
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