[Tropical] Hurricane Local Statement

EMWIN Server emwin at nashvilleweather.net
Wed Sep 6 07:25:56 CDT 2017


WTCA82 TJSJ 061225
HLSSJU
PRZ001>013-VIZ001-002-062030-

Hurricane Irma Local Statement Intermediate Advisory Number 29A
National Weather Service San Juan PR  AL112017
825 AM AST Wed Sep 6 2017

This product covers PUERTO RICO AND THE US VIRGIN ISLANDS

**EYE OF POTENTIALLY CATASTROPHIC CATEGORY 5 HURRICANE IRMA MOVING
OFF OF ST. MARTIN**

NEW INFORMATION
---------------

* CHANGES TO WATCHES AND WARNINGS:
    - None

* CURRENT WATCHES AND WARNINGS:
    - A Hurricane Warning is in effect for all of Puerto Rico and the
      U.S. Virgin Islands

* STORM INFORMATION:
    - About 180 miles east of San Juan PR or about 110 miles east of
      Saint Thomas VI
    - 18.1N 63.3W
    - Storm Intensity 185 mph
    - Movement West-northwest or 285 degrees at 16 mph

SITUATION OVERVIEW
------------------

|At 8 AM AST Irma continues as a dangerous category 5 with winds of
185 mph. Irma passed over the island of Barbuda with sustained wind
report of 118 mph with gusts of 155 mph. Irma is expected to continue
as a major hurricane as it approaches and impacts Puerto Rico and the
U.S. Virgin Islands today. Irma is expected to cause dangerous winds,
storm surge, rip currents and rainfall impacts across the local
islands. Hurricane force wind gusts are possible across the Northern
U.S. Virgin Islands, Culebra, Vieques and Northeast Puerto Rico with
strong tropical force winds likely. The rest of the area is likely to
experience tropical storm force winds. Wind gusts with hurricane force
wind are also likely in higher elevations. Rainfall storm total
accumulations across the north and northeast of Puerto Rico and U.S.
Virgin Islands except St. Croix, 4 to 10 inches with isolated 15
inches. Across the Southwest part of Puerto Rico and St. Croix expect
2 to 4 inches.

POTENTIAL IMPACTS
-----------------

* WIND:
Protect against life-threatening wind having possible devastating
impacts across Saint thomas and Saint John, Culebra, Vieques and
northeast Puerto Rico. Potential impacts in this area include:
    - Structural damage to sturdy buildings, some with complete roof
      and wall failures. Complete destruction of mobile homes. Damage
      greatly accentuated by large airborne projectiles. Locations
      may be uninhabitable for weeks or months.
    - Numerous large trees snapped or uprooted along with fences and
      roadway signs blown over.
    - Many roads impassable from large debris, and more within urban
      or heavily wooded places. Many bridges, causeways, and access
      routes impassable.
    - Widespread power and communications outages.

* SURGE:
Protect against life-threatening surge having possible devastating
impacts across northern coasts of Puerto Rico including Culebra and
the northern U.S. Virgin Islands. Potential impacts in this area
include:
    - Widespread deep inundation, with storm surge flooding greatly
      accentuated by powerful battering waves. Structural damage to
      buildings, with many washing away. Damage greatly compounded
      from considerable floating debris. Locations may be
      uninhabitable for an extended period.
    - Near-shore escape routes and secondary roads washed out or
      severely flooded. Flood control systems and barriers may become
      stressed.
    - Extreme beach erosion. New shoreline cuts possible.
    - Massive damage to marinas, docks, boardwalks, and piers.
      Numerous small craft broken away from moorings with many lifted
      onshore and stranded.

Also, protect against life-threatening surge having possible
significant to extensive impacts across Saint Croix.

Also, protect against locally hazardous surge having possible limited
impacts across all other coastlines.

* FLOODING RAIN:
Protect against life-threatening rainfall flooding having possible
extensive impacts across the entire region and especially higher
terrain. Potential impacts include:
    - Major rainfall flooding may prompt many evacuations and rescues.
    - Rivers and tributaries may rapidly overflow their banks in
      multiple places. Small streams, creeks, canals, arroyos, and
      ditches may become dangerous rivers. In mountain areas,
      destructive runoff may run quickly down valleys while
      increasing susceptibility to rockslides and mudslides. Flood
      control systems and barriers may become stressed.
    - Flood waters can enter many structures within multiple
      communities, some structures becoming uninhabitable or washed
      away. Many places where flood waters may cover escape routes.
      Streets and parking lots become rivers of moving water with
      underpasses submerged. Driving conditions become dangerous.
      Many road and bridge closures with some weakened or washed out.


* TORNADOES:
Protect against a tornado event having possible limited impacts
across PUERTO RICO AND THE US VIRGIN ISLANDS. Potential impacts
include:
    - The occurrence of isolated tornadoes can hinder the execution
      of emergency plans during tropical events.
    - A few places may experience tornado damage, along with power
      and communications disruptions.
    - Locations could realize roofs peeled off buildings, chimneys
      toppled, mobile homes pushed off foundations or overturned,
      large tree tops and branches snapped off, shallow-rooted trees
      knocked over, moving vehicles blown off roads, and small boats
      pulled from moorings.

PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------

* EVACUATIONS:
For those under evacuation orders, leave as soon as practical with a
destination in mind. Gas up your vehicle well ahead of time. Be sure
that you take all essential materials from your emergency supplies kit.
Let others know where you are going and when you intend to arrive.

For those not under evacuation orders, understand that there are
inherent risks to evacuation (such as traffic congestion, accidents,
and driving in bad weather), so evacuate only if necessary. Help keep
roadways open for those that are under evacuation orders.

If you are exceptionally vulnerable to wind or water hazards from
tropical systems, consider voluntary evacuation, especially if being
officially recommended. Relocate to a predetermined shelter or safe
destination.

* OTHER PREPAREDNESS INFORMATION:
Now is the time to bring to completion all preparations to protect
life and property in accordance with your emergency plan.

Outside preparations should be wrapped up as soon as possible before
weather conditions completely deteriorate. Any remaining evacuations
and relocations should be expedited before the onset of tropical
storm force wind.

If you are relocating to safe shelter, leave as early as possible. If
heading to a community shelter, become familiar with the shelter
rules before arrival, especially if you have special needs or own a
pet. Take essential items with you from your Emergency Supplies Kit.
Check the latest weather forecast before departing.

Failure to adequately shelter may result in serious injury or loss of
life. Always heed the advice of local officials and comply with any
orders that are issued. Remember, during the storm 9 1 1 Emergency
Services may not be able to immediately respond if conditions are
unsafe. This should be a big factor in your decision making.

Check-in with your emergency points of contact among family, friends,
and workmates. Inform them of your status and well-being. Let them
know how you intend to ride out the storm and when you plan to
check-in again.

In emergencies it is best to remain calm. Stay informed and focused on
the situation at hand. Exercise patience with those you encounter. Be
a Good Samaritan and helpful to others.

If relocating to a nearby shelter or to the home of a family member
or friend, drive with extra caution, especially on secondary roads.
Remember, many bridges and causeways will be closed once higher winds
arrive. Also, if you encounter water covering the road, seek an
alternate route. Always obey official road signs for closures and
detours.

Closely monitor NOAA Weather radio or other local news outlets for
official storm information. Be ready to adapt to possible changes to
the forecast.


* ADDITIONAL SOURCES OF INFORMATION:
- For information on appropriate preparations see ready.gov
- For information on creating an emergency plan see getagameplan.org
- For additional disaster preparedness information see redcross.org

NEXT UPDATE
-----------

The next local statement will be issued by the National Weather
Service in San Juan PR around 11:30 AM AST, or sooner if conditions
warrant.

$$
This weather bulletin was brought to you by:
www.nashvilleweather.net




More information about the Tropical mailing list