Weather Alert in New York

Recent Locations: Lotus, CA Upper Tract, WV Stow, NY

Coastal Flood Warning issued August 21 at 4:55AM EDT until August 22 at 3:00AM EDT by NWS Upton NY

AREAS AFFECTED: Southeast Suffolk

DESCRIPTION: * WHAT...For the High Rip Current Risk, life-threatening rip currents. For the High Surf Advisory, large breaking waves building to 12 to 16 ft through tonight, subsiding to and 8 to 12 feet on Friday afternoon. For the Coastal Flood Warning, 1 1/2 to 2 feet of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. For the Coastal Flood Advisory, up to 1 1/2 ft of inundation above ground level likely. Moderate coastal flooding potential will be highest for north facing shoreline areas along the southern and eastern bays, due to to enhanced wave action. This includes Orient Point. * WHERE...Southeast Suffolk County. * WHEN...For the High Surf Advisory, until 8 PM EDT Friday. For the High Rip Current Risk, through Friday evening. For the Coastal Flood Warning, from 5 PM today to 3 AM EDT Friday. For the Coastal Flood Advisory, from 5 AM to 2 PM EDT Friday. * COASTAL FLOOD IMPACTS...Widespread minor to locally moderate flooding of vulnerable areas near the waterfront and shoreline with this evening's high tide. Expect 1 1/2 to 2 ft of inundation above ground level in low lying, vulnerable areas. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. * SWIMMING IMPACTS...Life-threatening swimming and surfing conditions and localized beach erosion. Life-threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water. * SHORELINE IMPACTS...Along the ocean front, the threat for dune erosion and beach flooding will increase with successive high tides thru Fri morning. Widespread areas of dune erosion with localized overwashes are expected during the Thu evening and Fri morning high tides along the ocean front. Along the north shore of the south fork, 2 to 4 ft breaking waves will result in beach erosion and locally moderate flooding of shoreline roads and properties during this evening's high tide. Along the north facing shore of the barrier islands, 1 to 3 ft breaking waves will result in beach erosion and locally moderate flooding flooding of shoreline roads and properties during this evening's high tide

INSTRUCTION: Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.

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Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds

Weather Topic: What are Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds