[Tropical] Hurricane Local Statement

[EMWIN Server]

WTCA82 TJSJ 142108
HLSSJU
PRZ001>013-VIZ001-002-150515-

Tropical Storm Grace Local Statement Advisory Number 6
National Weather Service San Juan PR  AL072021
508 PM AST Sat Aug 14 2021

This product covers Puerto Rico and the US Virgin Islands

**SQUALLY WEATHER FROM GRACE SPREADING ACROSS THE LESSER ANTILLES**

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

* CHANGES TO WATCHES AND WARNINGS:
    - None

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Warning is in effect for Central Interior,
      Culebra, Eastern Interior, Mayaguez and Vicinity, North
      Central, Northeast, Northwest, Ponce and Vicinity, San Juan and
      Vicinity, Southeast, Southwest, St Croix, St.Thomas...St.
      John...and Adjacent Islands, Vieques, and Western Interior

* STORM INFORMATION:
    - About 390 miles east-southeast of San Juan PR or about 330
      miles east-southeast of Saint Thomas VI
    - 15.9N 60.7W
    - Storm Intensity 40 mph
    - Movement West or 275 degrees at 26 mph

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

Tropical Storm Grace, located about 55 miles east southeast of
Guadeloupe, continues to move quickly towards the west near 26 mph.
The storm intensity has decreased, now with maximum sustained winds
near 40 mph and tropical storm force winds extending outward up to 35
miles from the center. Although Grace's track has shifted slightly to
the south, flooding rains remain as the main threat, with the potential
for life-threatening flash flooding and mudslides, as well as rapid
river flooding by Sunday into Monday. First rainbands from Grace will
arrive by Sunday morning, becoming more frequent and heavier Sunday
afternoon through Sunday night. As a result, a Flash Flood Watch
remains in effect from Sunday through Monday evening. A Tropical Storm
Warning also remains in effect for the U.S. Virgin Islands and Puerto
Rico, with tropical storm force winds possible across southern portions
of the local islands. Hazardous marine and coastal conditions are also
expected, beginning as early as Sunday morning. Stay tuned for
additional updates, since forecast uncertainty remains higher than
usual.

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 dangerous wind having possible significant impacts
across across the U.S. Virgin Islands and Puerto Rico. Potential.
Potential impacts in this area include:
    - Some damage to roofing and siding materials, along with damage
      to porches, awnings, carports, and sheds. A few buildings
      experiencing window, door, and garage door failures. Mobile
      homes damaged, especially if unanchored. Unsecured lightweight
      objects become dangerous projectiles.
    - Several large trees snapped or uprooted, but with greater
      numbers in places where trees are shallow rooted. Several
      fences and roadway signs blown over.
    - Some roads impassable from large debris, and more within urban
      or heavily wooded places. A few bridges, causeways, and access
      routes impassable.
    - Scattered power and communications outages, but more prevalent in
      areas with above ground lines.

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:
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 you are a visitor and still in the area, listen for the name of
the city or town in which you are staying within local news updates.
Be sure you know the name of the county or parish in which it
resides. Pay attention for instructions from local authorities.

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 8 PM AST, or sooner if conditions
warrant.

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