Hurricane Watch
Henri Local Watch/Warning Statement/Advisory Number 18
National Weather Service New York NY AL082021
529 AM EDT Fri Aug 20 2021
NYZ080-201730-
/O.NEW.KOKX.SS.A.1008.210820T0929Z-000000T0000Z/
/O.NEW.KOKX.HU.A.1008.210820T0929Z-000000T0000Z/
Southwest Suffolk-
529 AM EDT Fri Aug 20 2021
...HURRICANE WATCH IN EFFECT...
...STORM SURGE WATCH IN EFFECT...
A Hurricane Watch means hurricane-force winds are possible somewhere
within this area within the next 48 hours
A Storm Surge Watch means life-threatening inundation, from rising
water moving inland from the coastline, is possible somewhere within
this area within the next 48 hours
* LOCATIONS AFFECTED
- Lindenhurst
- Sayville
- Patchogue
* WIND
- LATEST LOCAL FORECAST: Below tropical storm force wind
- Peak Wind Forecast: 10-20 mph with gusts to 30 mph
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 39
to 57 mph
- PLAN: Plan for hazardous wind of equivalent tropical storm
force.
- PREPARE: Efforts to protect property should now be
underway. Prepare for limited wind damage.
- ACT: Act now to complete preparations before the wind
becomes hazardous.
- POTENTIAL IMPACTS: Limited
- Damage to porches, awnings, carports, sheds, and unanchored
mobile homes. Unsecured lightweight objects blown about.
- Many large tree limbs broken off. A few trees snapped or
uprooted, but with greater numbers in places where trees
are shallow rooted. Some fences and roadway signs blown
over.
- A few roads impassable from debris, particularly within
urban or heavily wooded places. Hazardous driving
conditions on bridges and other elevated roadways.
- Scattered power and communications outages.
* STORM SURGE
- LATEST LOCAL FORECAST: Localized storm surge possible
- Peak Storm Surge Inundation: The potential for 1-3 feet
above ground somewhere within surge prone areas
- Window of concern: Around high tide
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for storm
surge flooding greater than 1 foot above ground
- PLAN: Plan for storm surge flooding greater than 1 foot
above ground.
- PREPARE: Efforts should now be underway to prepare for
storm surge flooding, especially in low-lying vulnerable
areas.
- ACT: Take actions to protect life and property. Prepare to
leave if evacuation orders are given for your area.
- POTENTIAL IMPACTS: Limited
- Localized inundation with storm surge flooding mainly along
immediate shorelines and in low lying spots, or in areas
farther inland near where higher surge waters move ashore.
- Sections of near shore roads and parking lots become
overspread with surge water. Driving conditions dangerous
in places where surge water covers the road.
- Moderate beach erosion. Heavy surf also breaching dunes,
mainly in usually vulnerable locations. Strong and frequent
rip currents.
- Minor to locally moderate damage to marinas, docks,
boardwalks, and piers. A few small craft broken away from
moorings.
* FLOODING RAIN
- LATEST LOCAL FORECAST:
- Peak Rainfall Amounts: 1-3 inches, with locally higher
amounts
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for
moderate flooding rain
- PLAN: Emergency plans should include the potential for
moderate flooding from heavy rain. Evacuations and rescues
are possible.
- PREPARE: Consider protective actions if you are in an area
vulnerable to flooding.
- ACT: Heed any flood watches and warnings. Failure to take
action may result in serious injury or loss of life.
- POTENTIAL IMPACTS: Significant
- Moderate rainfall flooding may prompt several evacuations
and rescues.
- Rivers and streams may quickly become swollen with swifter
currents and may overspill their banks in a few places,
especially in usually vulnerable spots. Small streams,
creeks, canals, and ditches may overflow.
- Flood waters can enter some structures or weaken
foundations. Several places may experience expanded areas
of rapid inundation at underpasses, low lying spots, and
poor drainage areas. Some streets and parking lots take on
moving water as storm drains and retention ponds overflow.
Driving conditions become hazardous. Some road and bridge
closures.
* TORNADO
- LATEST LOCAL FORECAST:
- Situation is unfavorable for tornadoes
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Tornadoes not expected
- PLAN: Tornadoes are not expected. Showers and thunderstorms
with gusty winds may still occur.
- PREPARE: Little to no preparations needed to protect
against tornadoes at this time. Keep informed of the latest
tornado situation.
- ACT: Listen for changes in the forecast.
- POTENTIAL IMPACTS: Little to None
- Little to no potential impacts from tornadoes.
* FOR MORE INFORMATION:
- http://scoem.suffolkcountyny.gov
- https://weather.gov/nyc
- https://ready.gov/hurricanes
Have a fantastic day!
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