[Tropical] Hurricane Local Statement

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MEZ007>009-012>014-018>028-033-NHZ001>015-041745-

Tropical Storm Isaias Local Statement Advisory Number 29
National Weather Service Gray ME  AL092020
534 AM EDT Tue Aug 4 2020

This product covers New Hampshire and western Maine

***TROPICAL STORM ISAIAS EXPECTED TO AFFECT NEW HAMPSHIRE AND WESTERN
MAINE***

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

* CHANGES TO WATCHES AND WARNINGS:
    - The Tropical Storm Watch has been upgraded to a Tropical Storm
      Warning for Androscoggin, Interior Cumberland Highlands,
      Northern Carroll, Northern Coos, Northern Franklin, Northern
      Grafton, Northern Oxford, Southern Carroll, Southern Coos,
      Southern Franklin, Southern Grafton, Southern Oxford, and
      Sullivan

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Watch is in effect for Central Somerset,
      Interior Waldo, Kennebec, and Southern Somerset
    - A Tropical Storm Warning is in effect for Androscoggin,
      Belknap, Central Interior Cumberland, Cheshire, Coastal
      Cumberland, Coastal Rockingham, Coastal Waldo, Coastal York,
      Eastern Hillsborough, Interior Cumberland Highlands, Interior
      Rockingham, Interior York, Knox, Lincoln, Merrimack, Northern
      Carroll, Northern Coos, Northern Franklin, Northern Grafton,
      Northern Oxford, Sagadahoc, Southern Carroll, Southern Coos,
      Southern Franklin, Southern Grafton, Southern Oxford,
      Strafford, Sullivan, and Western And Central Hillsborough

* STORM INFORMATION:
    - About 630 miles southwest of Portland ME or about 590 miles
      southwest of Portsmouth NH
    - 36.3N 77.5W
    - Storm Intensity 70 mph
    - Movement North-northeast or 20 degrees at 28 mph

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

Isaias is expected to track quickly through western New England
this evening into the early morning hours Wednesday. The majority of
storm impacts will be felt in roughly a 6 hour period tonight.

Southerly winds are expected to increase in the early evening and gust
to 40 to 60 mph at times as Isaias tracks near the Connecticut River
Valley. This may be capable of downing some trees and power lines. In
addition, there will be a threat for isolated tornadoes on the eastern
side of Isaias. Winds will begin to diminish early Wednesday morning.
Rainfall totals of 1 to 3 inches are expected, mainly in the
Connecticut River Valley and the mountains of northern New Hampshire
and western Maine. This may lead to flash flooding in complex terrain
or poor drainage areas, in addition to minor river flooding. Parts of
the forecast area near the coast may see less than 1 inch of rainfall.

In general, the coastal flooding threat is low based on the forecast
forward speed of Isaias, with any inundation likely less than a foot.
Some splashover is expected during the Tuesday night high tide
however. Rough surf and an increased risk for dangerous rip currents
will be possible both ahead of Isaias today and behind it on
Wednesday.

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

* WIND:
Protect against hazardous wind having possible limited impacts across
New Hampshire and western Maine. 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, leading to downed power lines.
    - A few roads impassable from debris, caused by downed branches
      and power lines. Hazardous driving conditions on bridges and
      other elevated roadways.
    - Scattered power and communications outages likely.

* SURGE:
Little or no impacts from surge and inundation flooding are anticipated
at this time across New Hampshire and western Maine.

* FLOODING RAIN:
Protect against dangerous rainfall flooding having possible
significant impacts across the Connecticut River Valley, the White
Mountains, and the western Maine mountains. 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, and
      ditches will 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
      will become hazardous. Some road and bridge closures.

Protect against locally hazardous rainfall flooding having possible
limited impacts across southern New Hampshire and coastal western
Maine.

* TORNADOES:
Protect against a tornado event having possible limited impacts
across New Hampshire and western Maine. 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 evacuating away from the area or relocating to a nearby shelter,
leave early before weather conditions become hazardous. Listen to
local officials for recommended preparedness actions, including
possible evacuation.

* 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.

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
check-in again.

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
detours.

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 Gray ME around 12 PM EDT, or sooner if conditions warrant.

$$

Watson
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