NWS San Juan & SRH Tropical page
Posted by cypresstx
on 9/19/2017, 4:24 am
(click on map for your location under threats & impacts tab for specific forecast)
Hurricane Maria Local Statement Intermediate Advisory Number 12A
National Weather Service San Juan PR AL152017
215 AM AST Tue Sep 19 2017
This product covers PUERTO RICO AND THE US VIRGIN ISLANDS
**MARIA REMAINS AN EXTREMELY DANGEROUS HURRICANE AFTER MOVING OVER
* CHANGES TO WATCHES AND WARNINGS:
* CURRENT WATCHES AND WARNINGS:
- A Hurricane Warning is in effect Puerto Rico and US Virgin
* STORM INFORMATION:
- About 330 miles southeast of San Juan PR or about 240 miles
southeast of Saint Croix VI
- 15.7N 61.9W
- Storm Intensity 155 mph
- Movement West-northwest or 300 degrees at 9 mph
Maria remains an extremely dangerous Hurricane. Hurricane conditions
are likely to begin Tuesday night across the USVI, Vieques and Culebra;
and across Puerto Rico Wednesday morning. Hurricane force winds will
likely continue across USVI, Vieques and Culebra through Wednesday
afternoon; and across Puerto Rico through Wednesday night. These winds
will bring catastrophic damage. Severe injury is possible in less than
a strong structure. Rainfall accumulations across the local islands
will depend highly on the forward speed, and based on the latest
forecast Maria is expected to produce storm total accumulations of 12
to 18 inches with isolated amounts of 25 inches or more. Now is the
time to complete the preparations in your emergency plan to secure your
home or business.
* FLOODING RAIN:
Protect against life-threatening rainfall flooding having possible
devastating impacts across PUERTO RICO AND THE US VIRGIN ISLANDS.
Potential impacts include:
- Extreme rainfall flooding may prompt numerous evacuations and
- Rivers and tributaries may overwhelmingly overflow their banks
in many places with deep moving water. Small streams, creeks,
canals, arroyos, and ditches may become raging rivers. In
mountain areas, deadly runoff may rage down valleys while
increasing susceptibility to rockslides and mudslides. Flood
control systems and barriers may become stressed.
- Flood waters can enter numerous structures within multiple
communities, some structures becoming uninhabitable or washed
away. Numerous places where flood waters may cover escape
routes. Streets and parking lots become rivers of raging water
with underpasses submerged. Driving conditions become very
dangerous. Numerous road and bridge closures with some weakened
or washed out.
Protect against life-threatening wind having possible devastating
impacts across PUERTO RICO AND THE US VIRGIN ISLANDS. Potential
- 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
- Widespread power and communications outages.
Protect against life-threatening surge having possible extensive
impacts particularly southeast Puerto Rico. Potential impacts in this
- Large areas of deep inundation with storm surge flooding
accentuated by battering waves. Structural damage to buildings,
with several washing away. Damage compounded by floating
debris. Locations may be uninhabitable for an extended period.
- Large sections of near-shore escape routes and secondary roads
washed out or severely flooded. Flood control systems and
barriers may become stressed.
- Severe beach erosion with significant dune loss.
- Major damage to marinas, docks, boardwalks, and piers. Many
small craft broken away from moorings, especially in
unprotected anchorages with some lifted onshore and stranded.
Protect against a dangerous tornado event having possible significant
impacts across PUERTO RICO AND THE US VIRGIN ISLANDS. Potential
- The occurrence of scattered tornadoes can hinder the execution
of emergency plans during tropical events.
- Several places may experience tornado damage with a few spots
of considerable damage, power loss, and communications failures.
- Locations could realize roofs torn off frame houses, mobile
homes demolished, boxcars overturned, large trees snapped or
uprooted, vehicles tumbled, and small boats tossed about.
Dangerous projectiles can add to the toll.
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
If evacuating away from the area or relocating to a nearby shelter,
leave early before weather conditions become hazardous.
* 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
Keep cell phones well charged and handy. Also, cell phone chargers
for automobiles can be helpful after the storm. Locate your chargers
and keep them with your cell phone.
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
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
* 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
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NWS San Juan & SRH Tropical page - cypresstx, 9/19/2017, 4:24 am< Return to message board
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