[Tropical] Hurricane Local Statement
EMWIN Server
emwin at nashvilleweather.net
Mon Aug 3 16:52:08 CDT 2020
WTUS81 KGYX 032151
HLSGYX
MEZ007>009-012>014-018>028-033-NHZ001>015-040600-
Tropical Storm Isaias Local Statement Advisory Number 27
National Weather Service Gray ME AL092020
551 PM EDT Mon Aug 3 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 Belknap, Central Interior Cumberland, Cheshire,
Coastal Cumberland, Coastal Rockingham, Coastal Waldo, Coastal
York, Eastern Hillsborough, Interior Rockingham, Interior York,
Knox, Lincoln, Merrimack, Sagadahoc, Strafford, and Western And
Central Hillsborough
* CURRENT WATCHES AND WARNINGS:
- A Tropical Storm Warning is in effect for Belknap, Central
Interior Cumberland, Cheshire, Coastal Cumberland, Coastal
Rockingham, Coastal Waldo, Coastal York, Eastern Hillsborough,
Interior Rockingham, Interior York, Knox, Lincoln, Merrimack,
Sagadahoc, Strafford, and Western And Central Hillsborough
- A Tropical Storm Watch is in effect for Androscoggin, Central
Somerset, Interior Cumberland Highlands, Interior Waldo,
Kennebec, Northern Carroll, Northern Coos, Northern Franklin,
Northern Grafton, Northern Oxford, Southern Carroll, Southern
Coos, Southern Franklin, Southern Grafton, Southern Oxford,
Southern Somerset, and Sullivan
* STORM INFORMATION:
- About 940 miles southwest of Portland ME or about 900 miles
southwest of Portsmouth NH
- 32.0N 79.4W
- Storm Intensity 70 mph
- Movement North-northeast or 15 degrees at 16 mph
SITUATION OVERVIEW
------------------
Tropical Storm Isaias is expected to track quickly through western
New England Tuesday evening into the overnight. The majority of storm
impacts will be felt in roughly a 6 hour period Tuesday night.
Southerly winds are expected to increase in the early evening and gust
to 40 to 60 mph. 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 White Mountains. This may
lead to minor poor drainage or river flooding. Parts of the forecast
area near the coast may see less than 1 inch rainfall.
In general the coastal flood threat is low based on the speed of
Isaias, with any inundation likely a foot or less. 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 on Tuesday and behind it on Wednesday.
POTENTIAL IMPACTS
-----------------
* WIND:
Protect against dangerous wind having possible significant impacts
across parts of southern New Hampshire and coastal western Maine.
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 are damaged, especially if unanchored. Unsecured
lightweight objects become dangerous projectiles.
- Numerous large trees snapped or uprooted, leading to downed
power lines.
- Many roads are impassable from debris, caused by downed trees
and power lines. Many bridges, causeways, and access routes
impassable.
- Numerous power and communications outages likely.
Also, protect against hazardous wind having possible limited impacts
across northern New Hampshire and interior western Maine.
* SURGE:
Prepare for locally hazardous surge having possible limited impacts
across coastal Maine and New Hampshire. Potential impacts in this area
include:
- Splash-over near the time of high tide Tuesday night.
- Minor to moderate beach erosion. Heavy surf also breaching
dunes, mainly in usually vulnerable locations. Strong rip
currents.
- Minor coastal flooding due to inundation possible.
* FLOODING RAIN:
Protect against dangerous rainfall flooding having possible
significant impacts across western and northern New Hampshire 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 southwestern Maine.
* TORNADOES:
Protect against a tornado event having possible limited impacts
across most of 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:
WATCH/WARNING PHASE - If evacuating away from the area or relocating
to a nearby shelter, leave early before weather conditions become
hazardous. Listen to local official 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.
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 6 AM EDT, or sooner if conditions warrant.
$$
Legro
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