[Tropical] Hurricane Local Statement

[EMWIN Server]

WTCA82 TJSJ 151210
HLSSJU
PRZ001>013-VIZ001-002-152015-

Tropical Storm Grace Local Statement Intermediate Advisory Number 8A
National Weather Service San Juan PR  AL072021
810 AM AST Sun Aug 15 2021

This product covers Puerto Rico and the US Virgin Islands

**DISORGANIZED GRACE CONTINUES MOVING WEST-NORTHWESTWARD OVER THE
NORTHEASTERN CARIBBEAN SEA**


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

* CHANGES TO WATCHES AND WARNINGS:
    - None

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

* STORM INFORMATION:
    - About 100 miles southeast of Ponce PR or about 60 miles
      southwest of Saint Croix VI
    - 17.1N 65.4W
    - Storm Intensity 40 mph
    - Movement West-northwest or 285 degrees at 16 mph

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

Tropical Storm Grace is to the south of the local islands, moving
west-northwestward at 16 mph. Grace's maximum sustained winds remain
near 40 mph, and tropical storm force winds extend outward up to 35
miles from the center. Flooding rains remain as the main threat, with
the potential for life-threatening flash flooding and mudslides, as
well as rapid river flooding from now into Monday. A Tropical Storm
Warning remains in effect for the U.S. Virgin Islands and Puerto Rico.
Hazardous marine and coastal conditions are also expected. Rainbands
associated with Grace are already affecting the region and will become
more frequent and heavier this afternoon through late tonight. A Flash
Flood Watch continues through Monday evening.

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

* FLOODING RAIN:
Protect against dangerous rainfall flooding having possible significant
impacts across the U.S. Virgin Islands and Puerto Rico. Potential
impacts include:
    - Moderate rainfall flooding may prompt several evacuations and
      rescues.
    - Rivers and tributaries may quickly become swollen with swifter
      currents and overspill their banks in a few places, especially
      in usually vulnerable spots. Small streams, creeks, canals,
      arroyos, and ditches 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.

* WIND:
Protect against hazardous wind having possible limited impacts across
Puerto Rico and the US Virgin Islands. Potential impacts include:
    - 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.

* 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:
- 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.

- If evacuating away from the area or relocating to a nearby shelter,
  leave early before weather conditions become hazardous.

* OTHER PREPAREDNESS INFORMATION:

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.

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.

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 AM AST, or sooner if conditions
warrant.

$$
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