Winter Storm Gail Update One

URGENT - WINTER WEATHER MESSAGE

National Weather Service Gray ME

1030 PM EST Tue Dec 15 2020

...ARCTIC AIR MOVES IN OVERNIGHT TONIGHT AHEAD OF A STRONG STORM

SYSTEM FOR WEDNESDAY NIGHT AND THURSDAY...

.An Arctic airmass will move in tonight ahead of a developing

area of low pressure which may bring significant snowfall to

parts of the region. The combination of below zero temperatures

along with northwesterly winds will result in windchills down to

25 below zero tonight. On Wednesday morning an area of low

pressure will be forming over the southeastern U.S. as a strong

area of high pressure remains in place to our north over Canada.

This low will quickly track northeastward before moving offshore

of the Delmarva and track near Cape Cod by early Thursday

morning. Beyond this point there remains uncertainty in the

proximity of the low to the northern New England coastline as a

track closer to the coast would result in heavier snowfall

amounts but a track farther offshore would result in lower

snowfall. There is growing confidence for at least a moderate

snowfall event across the watch area. The low will then track

into Nova Scotia by Friday afternoon.

MEZ018-019-023-024-NHZ005>015-161130-

/O.CON.KGYX.WS.A.0010.201217T0000Z-201218T0000Z/

Interior York-Central Interior Cumberland-Coastal York-

Coastal Cumberland-Southern Grafton-Southern Carroll-Sullivan-

Merrimack-Belknap-Strafford-Cheshire-Eastern Hillsborough-

Interior Rockingham-Coastal Rockingham-

Western And Central Hillsborough-

Including the cities of Hollis, Alfred, Lebanon, Sanford,

Goodwins Mills, Buxton, Limington, Berwick, New Gloucester, Gray,

North Windham, Gorham, Biddeford, Saco, Old Orchard Beach,

Kittery, Portland, Cape Elizabeth, South Portland, Westbrook,

Yarmouth, Brunswick, Lyme, Ashland, Ellsworth, Holderness,

Plymouth, Rumney, Wakefield, Bridgewater, Brookfield, Ossipee,

Tuftonboro, Wolfeboro, Moultonborough, Claremont, Cornish, Unity,

Croydon, Goshen, Grantham, Lempster, Newport, Charlestown,

Boscawen, Canterbury, Concord, Dunbarton, Loudon, Hooksett,

Laconia, Gilford, Meredith, Barrington, Rochester, Dover,

Rollinsford, Somersworth, Durham, Madbury, Gilsum, Keene, Marlow,

Sullivan, Surry, Jaffrey, Manchester, Pelham, Nashua, Salem,

Atkinson, Newton, Plaistow, Chester, Derry, Hampstead, Exeter,

Greenland, Portsmouth, Rye, Hampton, Hampton Falls,

North Hampton, Seabrook, Amherst, Milford, Mont Vernon,

Goffstown, Peterborough, Sharon, and Weare

1030 PM EST Tue Dec 15 2020

...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING

THROUGH THURSDAY EVENING...

* WHAT...Heavy snow possible. Snowfall totals of 6 or more

  inches possible.

* WHERE...Portions of central and southern New Hampshire and

  southwest Maine.

* WHEN...From Wednesday evening through Thursday evening.

* IMPACTS...Travel could be very difficult. The hazardous

  conditions could impact the morning commute Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

9:52 PM AST Tuesday 15 December 2020

Special weather statement in effect for:

Guysborough County

Significant snowfall may occur on Thursday.

Locations: most of mainland Nova Scotia

Time span: Beginning Thursday morning and ending early Friday morning.

Remarks: There is considerable uncertainty as to the amount of snowfall these regions will receive. However, current indications are that there is the potential for accumulations greater than 15 cm to occur in some areas of mainland Nova Scotia Thursday. As with most storms that pass south of Nova Scotia, a small difference in the forecast track will could result in a significant change in the snowfall forecast.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to NSstorm@canada.ca or tweet reports using #NSStorm.