major winter storm · follow us on twitter follow us on facebook presentation created 3/14/2017...

Gray, ME Weather Forecast Office

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3/14/2017 8:51 AM

Major Winter

Storm Decision Support Briefing # 4

As of 7:30 AM Tuesday, March 14th

Gray, ME

County Warning Area

What Has Changed?

Storm Warning issued for Penobscot Bay

May see some sleet or possibly a little rain

along the immediate coast

Winter Storm

Warning

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3/14/2017 8:51 AM

Main Points

Hazard Impacts Location Timing

Snow 10 to 20 inches of snow

2-3 inches per hour this

afternoon/evening

All of New Hampshire

and Western Maine

Today into Tonight

(heaviest this afternoon and evening)

Ice Significant icing is NOT

expected Significant icing is NOT

expected

Significant icing is NOT

expected

Wind

Widespread gusts to 30 mph

with gusts as high as 50 mph

near the coast. Blizzard

conditions expected with power

outages possible

All of New Hampshire

and Western Maine,

but strongest along the

coast

Strongest wind gusts this afternoon and tonight

Storm Surge/

Inundation Splash-over, beach erosion, and minor coastal flooding possible

New Hampshire

Seacoast and SW Maine This afternoon high tide

Marine Storm force winds likely outer waters. Gales likely in the bays

Strongest gusts outside the bays

This afternoon into evening







3/14/2017 8:51 AM

Ice: None Expected

Winds: Strongest along the coast

Surge/Inundation: Greatest south of Portland

Marine: Strong winds

Heavy Snow: Western Maine and NH

None Limited Elevated Significant Extreme

Summary of Greatest Impacts











3/14/2017 8:51 AM

Storm Confidence: High confidence for a high

impact winter storm

Find the most up to date

snowfall map, click here

Storm Total Snowfall Forecast





http://www.weather.gov/images/gyx/winter/StormTotalSnowWeb.png



3/14/2017 8:51 AM

Expect at least this much Potential for this much

Most Likely

Probabilistic Snowfall Forecast







3/14/2017 8:51 AM

Snow Starting & Ending Times

Note: Snow showers will persist in the mountains and foothills Wednesday.

Start Time End Time







3/14/2017 8:51 AM

Impacts and Timing: This afternoon into

Tonight

Blowing/Drifting Snow

with blizzard conditions

at times.

Downed branches may

lead to power outages

Drifting snow will cause

highly variable road

conditions

Maximum Wind Gust

Today and Tonight







3/14/2017 8:51 AM

What to Expect: Building nearshore

waves will allow for

beach erosion,

splash-over and

possibly minor

coastal flooding

around the time of

high tide Tuesday

Portland, ME Hampton, NH

Time 1:18 PM Today 1:32 PM Today

Astronomical

Tide

10.0 ft 9.1 ft

Storm Surge Around 1 ft Around 1.5 ft

Nearshore

Waves

Near 14 ft Near 14 ft

Impact Beach erosion,

splash-over and

minor coastal

flooding possible

Beach erosion,

splash-over and

minor coastal

flooding possible

Coastal Impacts Monday







3/14/2017 8:51 AM

Major Winter Storm likely Today into Tonight

Confidence is HIGH that this event will occur and MODERATE - HIGH

on expected impacts

Period of greatest impact: This afternoon and evening

Snow totals of 10 to 20 inches are expected, slightly less along

the mid-coast of Maine

Snowfall rates of 2 to 3 inches per hour this afternoon and

evening

Very strong northeast winds will cause blizzard or near-blizzard

conditions

Some splash-over and coastal erosion possible

Event Summary







3/14/2017 8:51 AM

Contact and Next Briefing Information

Briefing Webpage:

http://www.weather.gov/gyx/EMhome

Next Briefing When: By 5 pm on 3/14/2017

Method: E-mail

Web:

http://weather.gov/gyx

Phone (public):

(207) 688-3216

E-mail:

[email protected]

Facebook:

NWSGray

Twitter:

@NWSGray

YouTube:

NWS

Disclaimer: The information contained within this briefing

is time-sensitive, do not use after 5 pm March 14th





http://www.weather.gov/gyx/EMhome

http://weather.gov/chs

mailto:[email protected]



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https://www.youtube.com/user/usweathergov

major winter storm · follow us on twitter follow us on facebook presentation created 3/14/2017...

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