[Tropical] Hurricane Local Statement

[EMWIN Server]

WTUS82 KMFL 310909
HLSMFL
FLZ063-066>075-168-172>174-311715-

Hurricane Isaias Local Statement Advisory Number 13
National Weather Service Miami FL  AL092020
509 AM EDT Fri Jul 31 2020

This product covers South Florida

**Tropical Storm Watches Continue in Effect For Portions of
Southeastern Florida**


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

* CHANGES TO WATCHES AND WARNINGS:
    - None

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Watch is in effect for Coastal Broward,
      Coastal Miami-Dade, Coastal Palm Beach, Inland Broward, Inland
      Palm Beach, Metro Broward, Metro Miami-Dade, and Metro Palm
      Beach

* STORM INFORMATION:
    - About 580 miles southeast of West Palm Beach FL or about 560
      miles southeast of Fort Lauderdale FL or about 550 miles
      southeast of Miami FL
    - 20.9N 73.3W
    - Storm Intensity 80 mph
    - Movement Northwest or 305 degrees at 17 mph

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

Hurricane Isaias is forecast to move across the Bahamas as a category
1 hurricane today through Saturday. Forecast uncertainty remains high
at this time with Isaias and any notable change in the forecast could
bring tropical storm force winds inland into portions of southeastern
Florida. A tropical storm watch continues to be in effect for most of
southeast Florida including all of Palm Beach and Broward Counties
along with metro and coastal Miami-Dade County.

A reasonable worst case scenario at this time is for portions of Palm
Beach and Broward counties closer to the coast to be potentially
impacted by high end tropical storm force winds (winds greater than
58 mph) with the concern for portions of the remainder of southeastern
Florida being the potential for tropical storm force winds in excess
of 39 mph. Concerns for potential impacts from hurricane conditions,
if the track were to shift closer to portions of southeast Florida,
cannot be ruled out at this time but the risk remains low. It is
important to continue to monitor forecast trends with future
advisories.

Should tropical storm force winds impact southeastern Florida, they
could start as early as the pre dawn hours on Saturday but conditions
are most likely to start sometime late Saturday afternoon and into the
evening hours. Winds would gradually subside during the morning hours
on Sunday.

Other concerns with this system will be potential for locally heavy
rainfall, particularly across eastern portions of South Florida where
there is a marginal risk of excessive rainfall. High surf and
dangerous rip currents along with minor coastal flooding are likely as
the storm passes east of the coast. A stronger system and/or a track
closer to the coast could increase the threat of coastal flooding, so
again it is important to keep monitoring future forecasts. Marine
conditions will deteriorate early Saturday morning as the system
approaches the region from east to west across the local Atlantic
waters with increasing winds and building seas. Marine conditions are
not likely to improve until Sunday.

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

* WIND:
Prepare for dangerous wind having possible significant impacts across
eastern portions of Palm Beach and Broward Counties. 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.

Also, prepare for hazardous wind having possible limited impacts
across inland portions of Palm Beach and Broward Counties along with
portions of northeastern Miami-Dade County.

Elsewhere across South Florida, little to no impact is anticipated.

* FLOODING RAIN:
Prepare for locally hazardous rainfall flooding having possible limited
impacts across the Southeast Florida metropolitan areas. Potential
impacts include:
    - Localized rainfall flooding may prompt a few evacuations.
    - Ditches and canals may quickly rise with swift currents.
    - Flood waters can enter a few structures, especially in usually
      vulnerable spots. A few places where rapid ponding of water
      occurs at underpasses, low-lying spots, and poor drainage
      areas. Several storm drains and retention ponds become
      near-full and begin to overflow. Some brief road and bridge
      closures.

Elsewhere across South Florida, little to no impact is anticipated.

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

* EVACUATIONS:
Listen to local officials for recommended preparedness actions,
including possible evacuation orders. If ordered to evacuate, do so
immediately.

* OTHER PREPAREDNESS INFORMATION:
Now is the time to check your emergency plan and emergency supplies
kit and take necessary actions to protect your family and secure your
home or business. Follow the advise of your local emergency management
officials.

Closely monitor weather.gov, NOAA Weather Radio, and local news
outlets for official storm information. Listen for 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 Miami FL around 11 AM EDT, or sooner if conditions warrant.

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