Search results
Results from the WOW.Com Content Network
Red flag warning FWA – Extreme burning conditions favor ... to small boats because of wave height, wave period, steepness, or swell direction, even if wind speeds ...
Category 3 Hurricane Matthew's close passage of Brevard County, Florida on the morning of October 7, 2016 prompted the issuance of the first Extreme Wind Warning.. An extreme wind warning (SAME code EWW) is an alert issued by the National Weather Service for areas on land that will experience sustained surface winds 100 knots (115 mph, 185 km/h, 51 m/s) or greater within one hour.
The National Weather Service issues a similar high wind warning (Specific Area Message Encoding code: HWW) for high winds on land. The criteria vary from place to place; however, in most cases, the warning applies to winds of 40 miles per hour (64 km/h) to 73 miles per hour (117 km/h) for at least 1 hour; or any gusts of 58 miles per hour (93 km/h) to 114 miles per hour (183 km/h) on land.
Red flag warnings are in place for Southern California due to Santa Ana winds that will bring gusts up to 65 mph and “extremely rare and dangerous” fire weather conditions.
Breaking swell waves at Hermosa Beach, California. A swell, also sometimes referred to as ground swell, in the context of an ocean, sea or lake, is a series of mechanical waves that propagate along the interface between water and air under the predominating influence of gravity, and thus are often referred to as surface gravity waves.
Storm driven high swells on the ocean combined with seasonal high tides combined to cause coastal erosion and water rescues Dec. 28, 2023. The sign for the Oceano Dunes SVRA was undermined at Pier ...
These warnings are coordinated for the Great Lakes region with American neighboring offices. Strong Wind Warning was previously referred to as Small Craft Warning and is still (2012) referred to as such in many publications. A Strong Wind Warning is issued for winds in the range 20–33 knots and wave heights 2–3 metres.
A Hazardous Seas Warning is issued by the National Weather Service of the United States when wave heights and/or wave steepness values reach certain criteria. These criteria are defined by the local forecast office. Such tall waves can pose a serious threat to vessels that do not seek shelter. [1]