[Tropical] Hurricane Local Statement

[EMWIN Server]

WTCA82 TJSJ 300652
HLSSJU
PRZ001>013-VIZ001-002-301500-

Tropical Storm Isaias Local Statement Intermediate Advisory Number 7A
National Weather Service San Juan PR  AL092020
252 AM AST Thu Jul 30 2020

This product covers Puerto Rico and the US Virgin Islands

**Rainbands with strong winds and heavy rains moving into Puerto Rico**


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 140 miles south-southwest of San Juan PR or about 110
      miles south of Mayaguez PR
    - 16.7N 67.2W
    - Storm Intensity 50 mph
    - Movement Northwest or 305 degrees at 18 mph

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

A Tropical Storm Warning remains in effect for Puerto Rico and the
U.S. Virgin Islands. Doppler radar and recent surface observations
show rain bands approaching the south and southeast coasts of Puerto
Rico with heavy rainfall and wind gusts approaching 60 mph. Latest
lightning information shows thunderstorms south of the area only, but
isolated thunderstorms are possible. Rainfall accumulations totals of
1.5-3.0 inches have been observed in the last 24 hours, resulting in a
gradual saturation of the soils. Increasing shower and thunderstorm
activity and additional rounds of heavy rains will contribute to a
greater potential for life threatening flash flooding and mudslides, as
well as localized river flooding, mainly across mainland Puerto Rico
tonight into Thursday morning. Hazardous marine and coastal conditions
will continue as the system streams west- northwestward across the
eastern Caribbean and south of the local islands this evening. These
conditions are forecast to persist through at least Thursday night.

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

* 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.

* FLOODING RAIN:
Protect against life-threatening rainfall flooding having possible
extensive impacts across Puerto Rico and the US Virgin Islands.
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.

* SURGE:
Little to no impacts are anticipated at this time across Puerto Rico
and the US Virgin Islands.

* TORNADOES:
Little to no impacts are anticipated at this time across Puerto Rico
and the US Virgin Islands.

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

* EVACUATIONS:
Do not return to evacuated areas until hazardous winds diminish and
flood waters abate.

* 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 5 AM AST, or sooner if conditions
warrant.

$$
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