Alert archive / New Hampshire / Winter Storm Watches in 2021
Winter Storm Watch 4, NWS Gray, ME
NWS Gray, ME issued this winter storm watch at Feb 14, 2021, 2:30 AM EST for 8 counties in New Hampshire; 4 counties in Maine. It took effect at Feb 15, 2021, 11:00 PM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 14, 2021, 2:30 AM EST (07:30 UTC)
- In effect from
- Feb 15, 2021, 11:00 PM EST
- Expired
- Feb 15, 2021, 5:32 AM EST
- In force
- Issued by
- NWS Gray, ME
Counties Cumberland County, ME, Franklin County, ME, Oxford County, ME, Somerset County, ME, Belknap County, NH, Carroll County, NH, Cheshire County, NH, Coos County, NH, Grafton County, NH, Hillsborough County, NH, Merrimack County, NH, Sullivan County, NH
The radar
The Portland,ME radar (KGYX), 81 km from the middle of the area, began a volume at 07:29 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Gray, ME (KGYX), launched 00:00Z, 7.5 hours before the alert went out and 80 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2044 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
212 WWUS41 KGYX 140730 WSWGYX URGENT - WINTER WEATHER MESSAGE National Weather Service Gray ME 230 AM EST Sun Feb 14 2021 ...SIGNIFICANT SNOW ACCUMULATIONS POSSIBLE LATE MONDAY NIGHT AND TUESDAY... .Low pressure will lift north and east from the Gulf of Mexico on Monday...passing over or just south of southern New England on Tuesday. This will result in snow overspreading the region late Monday night and continuing through Tuesday before tapering off Tuesday evening. The potential exists for over six inches of snow. Sleet and freezing rain may also mix with the snow on Tuesday over portions of the area. MEZ007>009-NHZ001>004-142000- /O.NEW.KGYX.WS.A.0004.210216T0400Z-210217T0400Z/ Northern Oxford-Northern Franklin-Central Somerset-Northern Coos- Southern Coos-Northern Grafton-Northern Carroll- Including the cities of Lancaster, Albany, Jackson, Upton, Thornton, Wilsons Mills, Woodstock, Phillips, Crawford Notch, Sugar Hill, Millsfield, Bingham, Littleton, Berlin, Jackman, Colebrook, Avon, Seboomook, Pittston Farm, Lincoln, Conway, Roxbury, Moosehead, Errol, Oquossoc, Kingfield, North Conway, Davis, Long Pond, Coburn Gore, Chatham, Middle Dam, South Arm, Rangeley, Byron, Andover, Milan, Bethlehem, New Portland, York Pond, Dummer, Waterville Valley, and Brassua 230 AM EST Sun Feb 14 2021 ...WINTER STORM WATCH IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING... * WHAT...Heavy snow possible. Snow accumulation of greater than 6 inches possible. * WHERE...Northern portions of west central and western Maine. Portions of northern New Hampshire. * WHEN...From Monday evening through Tuesday evening. * IMPACTS...Travel could be very difficult due to low visibility and snow covered roads. The hazardous conditions could impact the Tuesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ MEZ012>014-033-NHZ005>009-142000- /O.NEW.KGYX.WS.A.0004.210216T0400Z-210217T0400Z/ Southern Oxford-Southern Franklin-Southern Somerset-Interior Cumberland Highlands-Southern Grafton-Southern Carroll-Sullivan- Merrimack-Belknap- Including the cities of Rumford, Bridgton, Moultonborough, Unity, Jay, Wilton, Bridgewater, Athens, Bryant Pond, Lyme, Fryeburg, Chesterville, Rumney, Norway, Temple, Cornish, Bethel, Grantham, Pittsfield, Wolfeboro, Claremont, Ossipee, Naples, Meredith, Boscawen, Farmington, Oxford, Hooksett, Cornville, Brookfield, Dunbarton, Milton, Hanover, Newry, Laconia, Locke Mills, Wakefield, Skowhegan, Plymouth, Newport, Canterbury, New Sharon, Ashland, Tuftonboro, Lempster, Goshen, Madison, Charlestown, New Vineyard, Concord, Lebanon, Holderness, Ellsworth, Croydon, Gilford, Harrison, Loudon, Palmyra, and Embden 230 AM EST Sun Feb 14 2021 ...WINTER STORM WATCH IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING... * WHAT...Heavy snow possible. Snow accumulation of greater than 6 inches is possible. There is the potential for snow to mix with sleet and freezing rain on Tuesday. * WHERE...Portions of south central and western Maine. Portions of central New Hampshire. * WHEN...From Monday evening through Tuesday evening. * IMPACTS...Travel could be very difficult due to low visibility and snow covered roads. The hazardous conditions could impact the Tuesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ ARNOTT
4 follow-up statements
675 WWUS41 KGYX 142022 WSWGYX URGENT - WINTER WEATHER MESSAGE National Weather Service Gray ME 322 PM EST Sun Feb 14 2021 ...SIGNIFICANT SNOW ACCUMULATIONS POSSIBLE LATE MONDAY NIGHT AND TUESDAY... .Low pressure will lift north and east from the Gulf of Mexico on Monday...passing over or just south of southern New England on Tuesday. This will result in snow overspreading the region late Monday night and continuing through Tuesday before tapering off Tuesday evening. The potential exists for over six inches of snow. Sleet and freezing rain may also mix with the snow on Tuesday over portions of the area. NHZ011-015-150430- /O.EXA.KGYX.WS.A.0004.210216T0400Z-210217T0400Z/ Cheshire-Western And Central Hillsborough- Including the cities of Sharon, Milford, Peterborough, Gilsum, Sullivan, Surry, Marlow, Hollis, Weare, Goffstown, Amherst, Mont Vernon, Jaffrey, and Keene 322 PM EST Sun Feb 14 2021 ...WINTER STORM WATCH IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING... * WHAT...Heavy snow possible. Snow accumulation of greater than 6 inches is possible. There is the potential for snow to mix with sleet and freezing rain on Tuesday. * WHERE...Western and Central Hillsborough and Cheshire Counties. * WHEN...From Monday evening through Tuesday evening. * IMPACTS...Plan on slippery road conditions due to snow covered roads. The hazardous conditions could impact the Tuesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ MEZ007>009-NHZ001>004-150430- /O.CON.KGYX.WS.A.0004.210216T0400Z-210217T0400Z/ Northern Oxford-Northern Franklin-Central Somerset-Northern Coos- Southern Coos-Northern Grafton-Northern Carroll- Including the cities of Lancaster, Albany, Jackson, Upton, Thornton, Wilsons Mills, Woodstock, Phillips, Crawford Notch, Sugar Hill, Millsfield, Bingham, Littleton, Berlin, Jackman, Colebrook, Avon, Seboomook, Pittston Farm, Lincoln, Conway, Roxbury, Moosehead, Errol, Oquossoc, Kingfield, North Conway, Davis, Long Pond, Coburn Gore, Chatham, Middle Dam, South Arm, Rangeley, Byron, Andover, Milan, Bethlehem, New Portland, York Pond, Dummer, Waterville Valley, and Brassua 322 PM EST Sun Feb 14 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING... * WHAT...Heavy snow possible. Snow accumulation of greater than 6 inches possible. * WHERE...Portions of west central and western Maine. Portions of northern New Hampshire. * WHEN...From Monday evening through Tuesday evening. * IMPACTS...Travel could be very difficult due to low visibility and snow covered roads. The hazardous conditions could impact the Tuesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ MEZ012>014-033-NHZ005>009-150430- /O.CON.KGYX.WS.A.0004.210216T0400Z-210217T0400Z/ Southern Oxford-Southern Franklin-Southern Somerset-Interior Cumberland Highlands-Southern Grafton-Southern Carroll-Sullivan- Merrimack-Belknap- Including the cities of Rumford, Bridgton, Moultonborough, Unity, Jay, Wilton, Bridgewater, Athens, Bryant Pond, Lyme, Fryeburg, Chesterville, Rumney, Norway, Temple, Cornish, Bethel, Grantham, Pittsfield, Wolfeboro, Claremont, Ossipee, Naples, Meredith, Boscawen, Farmington, Oxford, Hooksett, Cornville, Brookfield, Dunbarton, Milton, Hanover, Newry, Laconia, Locke Mills, Wakefield, Skowhegan, Plymouth, Newport, Canterbury, New Sharon, Ashland, Tuftonboro, Lempster, Goshen, Madison, Charlestown, New Vineyard, Concord, Lebanon, Holderness, Ellsworth, Croydon, Gilford, Harrison, Loudon, Palmyra, and Embden 322 PM EST Sun Feb 14 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING... * WHAT...Heavy snow possible. Snow accumulation of greater than 6 inches is possible. There is the potential for snow to mix with sleet and freezing rain on Tuesday. * WHERE...Portions of south central and western Maine. Portions of central and northern New Hampshire. * WHEN...From Monday evening through Tuesday evening. * IMPACTS...Travel could be very difficult due to low visibility and snow covered roads. The hazardous conditions could impact the Tuesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ Cempa
689 WWUS41 KGYX 150352 WSWGYX URGENT - WINTER WEATHER MESSAGE National Weather Service Gray ME 1052 PM EST Sun Feb 14 2021 ...SIGNIFICANT SNOW AND MIXED PRECIPIATION LIKELY LATER MONDAY NIGHT AND TUESDAY... .Low pressure will lift north and east from the Gulf of Mexico on Monday...passing over or just south of southern New England on Tuesday. This will result in snow overspreading the region late Monday night and continuing through Tuesday before tapering off Tuesday evening. In addition, significant mixed precipitation is also a good possibility, especially across southern New Hampshire and southernmost Maine. MEZ007>009-NHZ001>004-151200- /O.CON.KGYX.WS.A.0004.210216T0400Z-210217T0400Z/ Northern Oxford-Northern Franklin-Central Somerset-Northern Coos- Southern Coos-Northern Grafton-Northern Carroll- Including the cities of Lancaster, Albany, Jackson, Upton, Thornton, Wilsons Mills, Woodstock, Phillips, Crawford Notch, Sugar Hill, Millsfield, Bingham, Littleton, Berlin, Jackman, Colebrook, Avon, Seboomook, Pittston Farm, Lincoln, Conway, Roxbury, Moosehead, Errol, Oquossoc, Kingfield, North Conway, Davis, Long Pond, Coburn Gore, Chatham, Middle Dam, South Arm, Rangeley, Byron, Andover, Milan, Bethlehem, New Portland, York Pond, Dummer, Waterville Valley, and Brassua 1052 PM EST Sun Feb 14 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING... * WHAT...Heavy snow possible. Snow accumulation of greater than 6 inches possible, likely mixing with sleet. * WHERE...Northern New Hampshire as well as the western Maine Mountains and foothills. * WHEN...From Monday evening through Tuesday evening. * IMPACTS...Travel could be very difficult due to low visibility and snow covered roads. The hazardous conditions could impact the Tuesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ MEZ012>014-033-NHZ005>009-011-015-151200- /O.CON.KGYX.WS.A.0004.210216T0400Z-210217T0400Z/ Southern Oxford-Southern Franklin-Southern Somerset-Interior Cumberland Highlands-Southern Grafton-Southern Carroll-Sullivan- Merrimack-Belknap-Cheshire-Western And Central Hillsborough- Including the cities of Rumford, Bridgton, Moultonborough, Unity, Jay, Wilton, Bridgewater, Athens, Bryant Pond, Lyme, Fryeburg, Chesterville, Goffstown, Rumney, Norway, Temple, Jaffrey, Cornish, Bethel, Grantham, Peterborough, Pittsfield, Wolfeboro, Claremont, Ossipee, Naples, Meredith, Weare, Boscawen, Farmington, Oxford, Hooksett, Cornville, Brookfield, Dunbarton, Milton, Hanover, Surry, Newry, Laconia, Locke Mills, Wakefield, Skowhegan, Hollis, Plymouth, Newport, Canterbury, New Sharon, Ashland, Mont Vernon, Tuftonboro, Lempster, Keene, Goshen, Marlow, Madison, Charlestown, New Vineyard, Concord, Sullivan, Gilsum, Lebanon, Holderness, Ellsworth, Sharon, Croydon, Milford, Gilford, Amherst, Harrison, Loudon, Palmyra, and Embden 1052 PM EST Sun Feb 14 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING... * WHAT...Heavy mixed precipitation possible. Total snow and sleet accumulations between 2 to 8 inches and ice accumulations around one quarter of an inch possible. * WHERE...Portions of southern and central New Hampshire as well as interior western Maine. * WHEN...From Monday evening through Tuesday evening. * IMPACTS...Travel could be very difficult due to low visibility and snow and ice covered roads. The hazardous conditions could impact the Tuesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ MLE
508 WWUS41 KGYX 150859 WSWGYX URGENT - WINTER WEATHER MESSAGE National Weather Service Gray ME 359 AM EST Mon Feb 15 2021 ...SIGNIFICANT SNOW AND MIXED PRECIPITATION TONIGHT AND TUESDAY... .Low pressure will lift north and east from the Gulf of Mexico today...passing over or just south of southern New England on Tuesday. This will result in snow overspreading the region late tonight. This snow will then mix with and change to sleet and freezing rain along the coast and into the foothills...with mostly snow in the mountains. Some uncertainty remains with the exact location of the heaviest snow and ice. MEZ007>009-NHZ001>004-152000- /O.UPG.KGYX.WS.A.0004.210216T0400Z-210217T0400Z/ /O.NEW.KGYX.WS.W.0004.210216T0400Z-210217T0400Z/ Northern Oxford-Northern Franklin-Central Somerset-Northern Coos- Southern Coos-Northern Grafton-Northern Carroll- Including the cities of Upton, Wilsons Mills, Andover, Byron, Middle Dam, Roxbury, South Arm, Coburn Gore, Davis, Oquossoc, Rangeley, Avon, Kingfield, Phillips, New Portland, Brassua, Long Pond, Moosehead, Pittston Farm, Seboomook, Bingham, Jackman, Errol, Millsfield, Colebrook, Berlin, Dummer, Milan, York Pond, Lancaster, Bethlehem, Lincoln, Littleton, Sugar Hill, Thornton, Waterville Valley, Woodstock, Jackson, North Conway, Albany, Conway, Chatham, and Crawford Notch 359 AM EST Mon Feb 15 2021 ...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 11 PM EST TUESDAY... * WHAT...Heavy snow and sleet expected. Total snow accumulations of 5 to 8 inches and sleet accumulations of around 1/2 of an inch expected. * WHERE...Portions of northern New Hampshire and west central and western Maine. * WHEN...From 11 PM this evening to 11 PM EST Tuesday. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For a more precise forecast for your specific location...go to www.weather.gov/gray.. && $$ NHZ007>009-011-015-152000- /O.UPG.KGYX.WS.A.0004.210216T0400Z-210217T0400Z/ /O.NEW.KGYX.WW.Y.0007.210216T0400Z-210217T0000Z/ Sullivan-Merrimack-Belknap-Cheshire- Western And Central Hillsborough- Including the cities of Claremont, Cornish, Unity, Croydon, Goshen, Grantham, Lempster, Newport, Charlestown, Boscawen, Canterbury, Concord, Dunbarton, Loudon, Hooksett, Laconia, Gilford, Meredith, Gilsum, Keene, Marlow, Sullivan, Surry, Jaffrey, Amherst, Milford, Mont Vernon, Goffstown, Peterborough, Sharon, Hollis, and Weare 359 AM EST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 7 PM EST TUESDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 2 to 4 inches, sleet accumulations of around 3/4 of an inch and ice accumulations of around three tenths of an inch expected. * WHERE...Sullivan, Merrimack, Belknap, Cheshire and Western and Central Hillsborough Counties. * WHEN...From 11 PM this evening to 7 PM EST Tuesday. * IMPACTS...Isolated power outages possible due to the weighted branches. Travel will be hazardous. The hazardous conditions will impact the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For a more precise forecast for your specific location...go to www.weather.gov/gray.. && $$ MEZ018-023-NHZ010-152000- /O.NEW.KGYX.WW.Y.0007.210216T0400Z-210217T0000Z/ Interior York-Coastal York-Strafford- Including the cities of Hollis, Alfred, Lebanon, Sanford, Goodwins Mills, Buxton, Limington, Berwick, Biddeford, Saco, Old Orchard Beach, Kittery, Barrington, Rochester, Dover, Rollinsford, Somersworth, Durham, and Madbury 359 AM EST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 7 PM EST TUESDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 2 to 4 inches, sleet accumulations of around 1/2 of an inch and ice accumulations of around one quarter of an inch expected. * WHERE...In New Hampshire, Strafford County. In Maine, Interior York and Coastal York Counties. * WHEN...From 11 PM this evening to 7 PM EST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For a more precise forecast for your specific location...go to www.weather.gov/gray.. && $$ MEZ019>022-024>028-152000- /O.NEW.KGYX.WW.Y.0007.210216T0400Z-210217T0000Z/ Central Interior Cumberland-Androscoggin-Kennebec-Interior Waldo- Coastal Cumberland-Sagadahoc-Lincoln-Knox-Coastal Waldo- Including the cities of New Gloucester, Gray, North Windham, Gorham, Greene, Lewiston, Sabattus, Wales, Minot, Turner, Auburn, Livermore Falls, Augusta, Sidney, Windsor, Vassalboro, Waterville, China, Palermo, Brooks, Jackson, Knox, Liberty, Montville, Morrill, Waldo, Winterport, Unity, Portland, Cape Elizabeth, South Portland, Westbrook, Yarmouth, Brunswick, Arrowsic, Bath, Phippsburg, Bowdoinham, Topsham, Bowdoin, Whitefield, Dresden, Alna, Bremen, Bristol, Damariscotta, Newcastle, Boothbay Harbor, Wiscasset, Waldoboro, Owls Head, Rockland, Appleton, Camden, Hope, Rockport, Thomaston, Belfast, Northport, Searsmont, and Lincolnville 359 AM EST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 7 PM EST TUESDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 3 to 5 inches, sleet accumulations of around 1/2 of an inch and ice accumulations of around two tenths of an inch expected. * WHERE...Portions of south central and southwest Maine. * WHEN...From 11 PM this evening to 7 PM EST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For a more precise forecast for your specific location...go to www.weather.gov/gray.. && $$ NHZ012>014-152000- /O.NEW.KGYX.WW.Y.0007.210216T0400Z-210217T0000Z/ Eastern Hillsborough-Interior Rockingham-Coastal Rockingham- Including the cities of Manchester, Pelham, Nashua, Salem, Atkinson, Newton, Plaistow, Chester, Derry, Hampstead, Exeter, Greenland, Portsmouth, Rye, Hampton, Hampton Falls, North Hampton, and Seabrook 359 AM EST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 7 PM EST TUESDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to two inches, sleet accumulations of around 1/2 of an inch and ice accumulations of around one quarter of an inch expected. * WHERE...Eastern Hillsborough, Interior Rockingham and Coastal Rockingham Counties. * WHEN...From 11 PM this evening to 7 PM EST Tuesday. * IMPACTS...Isolated power outages possible due to the weighted branches. Travel will be hazardous. The hazardous conditions will impact the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For a more precise forecast for your specific location...go to www.weather.gov/gray.. && $$ MEZ012>014-033-NHZ005-006-152000- /O.CON.KGYX.WS.A.0004.210216T0400Z-210217T0400Z/ Southern Oxford-Southern Franklin-Southern Somerset- Interior Cumberland Highlands-Southern Grafton-Southern Carroll- Including the cities of Bethel, Bryant Pond, Hanover, Locke Mills, Milton, Newry, Rumford, Norway, Fryeburg, Oxford, Farmington, New Sharon, New Vineyard, Temple, Wilton, Chesterville, Jay, Athens, Cornville, Skowhegan, Palmyra, Pittsfield, Embden, Madison, Bridgton, Harrison, Naples, Lebanon, Lyme, Ashland, Ellsworth, Holderness, Plymouth, Rumney, Wakefield, Bridgewater, Brookfield, Ossipee, Tuftonboro, Wolfeboro, and Moultonborough 359 AM EST Mon Feb 15 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH TUESDAY EVENING... * WHAT...Heavy mixed precipitation possible. Snow accumulation of up to 6 inches is possible along with sleet and freezing rain. * WHERE...Portions of northern New Hampshire and south central and western Maine. * WHEN...From this evening through Tuesday evening. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ ARNOTT
535 WWUS41 KGYX 151032 WSWGYX URGENT - WINTER WEATHER MESSAGE National Weather Service Gray ME 532 AM EST Mon Feb 15 2021 ...SIGNIFICANT SNOW AND MIXED PRECIPITATION TONIGHT AND TUESDAY... .Low pressure will lift north and east from the Gulf of Mexico today...passing over or just south of southern New England on Tuesday. This will result in snow overspreading the region late tonight. This snow will then mix with and change to sleet and freezing rain along the coast and into the foothills...with mostly snow in the mountains. Some uncertainty remains with the exact location of the heaviest snow and ice. MEZ012>014-033-NHZ005-006-151845- /O.UPG.KGYX.WS.A.0004.210216T0400Z-210217T0400Z/ /O.EXA.KGYX.WS.W.0004.210216T0400Z-210217T0400Z/ Southern Oxford-Southern Franklin-Southern Somerset- Interior Cumberland Highlands-Southern Grafton-Southern Carroll- Including the cities of Bethel, Bryant Pond, Hanover, Locke Mills, Milton, Newry, Rumford, Norway, Fryeburg, Oxford, Farmington, New Sharon, New Vineyard, Temple, Wilton, Chesterville, Jay, Athens, Cornville, Skowhegan, Palmyra, Pittsfield, Embden, Madison, Bridgton, Harrison, Naples, Lebanon, Lyme, Ashland, Ellsworth, Holderness, Plymouth, Rumney, Wakefield, Bridgewater, Brookfield, Ossipee, Tuftonboro, Wolfeboro, and Moultonborough 532 AM EST Mon Feb 15 2021 ...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 11 PM EST TUESDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 4 to 6 inches, sleet accumulations of around 3/4 of an inch and ice accumulations of around one tenth of an inch expected. * WHERE...Portions of northern New Hampshire and south central and western Maine. * WHEN...From 11 PM this evening to 11 PM EST Tuesday. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For a more precise forecast for your specific location...go to www.weather.gov/gray.. && $$ MEZ007>009-NHZ001>004-151845- /O.CON.KGYX.WS.W.0004.210216T0400Z-210217T0400Z/ Northern Oxford-Northern Franklin-Central Somerset-Northern Coos- Southern Coos-Northern Grafton-Northern Carroll- Including the cities of Upton, Wilsons Mills, Andover, Byron, Middle Dam, Roxbury, South Arm, Coburn Gore, Davis, Oquossoc, Rangeley, Avon, Kingfield, Phillips, New Portland, Brassua, Long Pond, Moosehead, Pittston Farm, Seboomook, Bingham, Jackman, Errol, Millsfield, Colebrook, Berlin, Dummer, Milan, York Pond, Lancaster, Bethlehem, Lincoln, Littleton, Sugar Hill, Thornton, Waterville Valley, Woodstock, Jackson, North Conway, Albany, Conway, Chatham, and Crawford Notch 532 AM EST Mon Feb 15 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 PM EST TUESDAY... * WHAT...Heavy snow and sleet expected. Total snow accumulations of 5 to 9 inches and sleet accumulations of around 1/2 of an inch expected. * WHERE...Portions of northern New Hampshire and west central and western Maine. * WHEN...From 11 PM this evening to 11 PM EST Tuesday. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For a more precise forecast for your specific location...go to www.weather.gov/gray.. && $$ MEZ018-023-NHZ007>011-015-151845- /O.CON.KGYX.WW.Y.0007.210216T0400Z-210217T0000Z/ Interior York-Coastal York-Sullivan-Merrimack-Belknap-Strafford- Cheshire-Western And Central Hillsborough- Including the cities of Hollis, Alfred, Lebanon, Sanford, Goodwins Mills, Buxton, Limington, Berwick, Biddeford, Saco, Old Orchard Beach, Kittery, Claremont, Cornish, Unity, Croydon, Goshen, Grantham, Lempster, Newport, Charlestown, Boscawen, Canterbury, Concord, Dunbarton, Loudon, Hooksett, Laconia, Gilford, Meredith, Barrington, Rochester, Dover, Rollinsford, Somersworth, Durham, Madbury, Gilsum, Keene, Marlow, Sullivan, Surry, Jaffrey, Amherst, Milford, Mont Vernon, Goffstown, Peterborough, Sharon, and Weare 532 AM EST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 7 PM EST TUESDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 2 to 4 inches, sleet accumulations of around 1/2 of an inch and ice accumulations of around one quarter of an inch expected. * WHERE...In New Hampshire, Strafford County. In Maine, Interior York and Coastal York Counties. * WHEN...From 11 PM this evening to 7 PM EST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For a more precise forecast for your specific location...go to www.weather.gov/gray.. && $$ MEZ019>022-024>028-151845- /O.CON.KGYX.WW.Y.0007.210216T0400Z-210217T0000Z/ Central Interior Cumberland-Androscoggin-Kennebec-Interior Waldo- Coastal Cumberland-Sagadahoc-Lincoln-Knox-Coastal Waldo- Including the cities of New Gloucester, Gray, North Windham, Gorham, Greene, Lewiston, Sabattus, Wales, Minot, Turner, Auburn, Livermore Falls, Augusta, Sidney, Windsor, Vassalboro, Waterville, China, Palermo, Brooks, Jackson, Knox, Liberty, Montville, Morrill, Waldo, Winterport, Unity, Portland, Cape Elizabeth, South Portland, Westbrook, Yarmouth, Brunswick, Arrowsic, Bath, Phippsburg, Bowdoinham, Topsham, Bowdoin, Whitefield, Dresden, Alna, Bremen, Bristol, Damariscotta, Newcastle, Boothbay Harbor, Wiscasset, Waldoboro, Owls Head, Rockland, Appleton, Camden, Hope, Rockport, Thomaston, Belfast, Northport, Searsmont, and Lincolnville 532 AM EST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 7 PM EST TUESDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 3 to 5 inches, sleet accumulations of around 1/2 of an inch and ice accumulations of around two tenths of an inch expected. * WHERE...Portions of south central and southwest Maine. * WHEN...From 11 PM this evening to 7 PM EST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For a more precise forecast for your specific location...go to www.weather.gov/gray.. && $$ NHZ012>014-151845- /O.CON.KGYX.WW.Y.0007.210216T0400Z-210217T0000Z/ Eastern Hillsborough-Interior Rockingham-Coastal Rockingham- Including the cities of Manchester, Pelham, Nashua, Salem, Atkinson, Newton, Plaistow, Chester, Derry, Hampstead, Exeter, Greenland, Portsmouth, Rye, Hampton, Hampton Falls, North Hampton, and Seabrook 532 AM EST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 7 PM EST TUESDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to two inches, sleet accumulations of around 1/2 of an inch and ice accumulations of around one quarter of an inch expected. * WHERE...Eastern Hillsborough, Interior Rockingham and Coastal Rockingham Counties. * WHEN...From 11 PM this evening to 7 PM EST Tuesday. * IMPACTS...Isolated power outages possible due to the weighted branches. Travel will be hazardous. The hazardous conditions will impact the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For a more precise forecast for your specific location...go to www.weather.gov/gray.. && $$ ARNOTT
What forecasters said that day
The local office's own words before this winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Gray, ME wrote its last area forecast discussion before this winter storm watch went out at Feb 13, 10:32 PM EST, 3 hours 58 minutes earlier.
Area forecast discussion, Feb 13, 10:32 PM EST, 3 hours 58 minutes before
Area Forecast Discussion National Weather Service Gray ME 1032 PM EST Sat Feb 13 2021 .SYNOPSIS... A weak weather system brings the chance for some light snow or even patchy freezing drizzle Sunday morning. That will begin what should be an active weather week...with another round of light snow possible late Monday before a more substantial system brings snow and possibly some mixed precipitation to the region Tuesday. Another storm system is expected by the end of the week. && .NEAR TERM /UNTIL 6 AM SUNDAY MORNING/... 1030 PM Update...We continue to be dry this evening as we're in between two areas of relatively weak forcing for ascent. Much of the night will be cloudy and dry with light winds. However, it's possible that we'll see some very light snow or flurries Sunday morning, with perhaps a few pockets of freezing drizzle. Not big changes to the forecast at this hour except for adjust temperatures a little bit. 630 PM Update...Little change to the going forecast other than to lower PoPs a bit for tonight - more in line with the latest HRRR guidance. Otherwise, just a few minor adjustments to temperatures. Previously... Impacts: Very light snow possible early Sunday morning, especially for NH and far western portions of western ME. Could make for slick travel. It's quiet out there at this hour as mid and high clouds continue to stream overhead. Conditions should remain quiet through the late evening as well with clouds thickening and lowering as we head into tonight. Low pressure will slide off the mid-Atlantic coast tonight and a shortwave will move across New England. These two features will provide just enough forcing to generate a coating of snow before sunrise, primarily in NH and portions of far western ME. Even a few tenths will be enough to make roads slick for travelers on Sunday morning, especially with temperatures in the single digits and teens and road temperatures expected to be near or below freezing. && .SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT/... Impacts: Very light snow continues into Sunday morning with slick roads expected. Will continue assessing the potential for freezing drizzle for late Sunday morning as the precipitation comes to an end. With the low pressure continuing to move east and the shortwave pulling off to the north, forcing for ascent will quickly wane late Sunday morning, but probably not before most of the region picks up another tenth or two of snowfall. Do want to mention the possibility of light freezing drizzle Sunday morning as well. A look at forecast soundings around the area shows a nearly saturated layer from the surface to between 700 and 800 mb, some weak upward vertical motion and a deep dry layer collocated with the DGZ above the saturated layer and inversion. Not confident enough to put it in the grids with this package as temperatures in the lower levels may still be just cold enough for snow to develop instead. Even light freezing drizzle could be impactful, especially on already lightly snow-covered roads, so will mention in the HWO now and let subsequent shifts continue to assess. Highs will range from the mid 20s north to the lower 30s south; some locations in southern NH may make a push to get above freezing. Any precipitation should be coming to an end by early afternoon, but clouds will persist over southern and western areas into the evening. Quiet conditions return Sunday night with partly to mostly cloudy skies and lows ranging from the positive single digits north to the upper teens south. && .LONG TERM /MONDAY THROUGH SATURDAY/... An active week is in store as we deal with two winter systems, one on Tuesday and another at the end of the week. This is mainly the result of strong ridging over the Atlantic colliding with remnant polar vortex cross Ontario and srn Quebec. This will great strong temp/gradient across New England, so any waves that pass thru at 500 MB will be able to produce strong thermal advection. An temps fluctuate a bit around these systems, although not too badly as low levels will mostly stay cooler, thanks to NW-NE flow. Monday could start off with some sun, but clouds will thicken as we see some weak mid-level FG and tightening of the temp gradient. Could see some SHSN or maybe some very light snow associated with this FG, but mostly looks light, and may have a tough time since it will likely falling from somewhere between 5-10k ft, and initially airmass near the sfc will be dry. Highs Monday will be in the mid 20s to low 30s. May see a little break before we start to see precip moving in from the coastal low, likely after midnight and closer to daybreak in central ME. P-type is one of the bigger questions, although it will all start as snow. Models have not instilled a lot of confidence regarding progression poleward of the warmer mid level, and the 12Z Euro has come in cooler, which would mean more snow. Still I think there's a possibility of seeing some PL or FZRA mixing in on Tuesday across SE NH and the ME coast, but not confident on how much or how that will affect snow amts. Overall QPF still coming around 0.75." I don't think anywhere will rise above freezing but some coastal areas and the MHT-ASH corridor could see temps of 30-32, with 20s elsewhere. Precip should wind down late afternoon to early evening, with colder air moving in and upslope SHSN Tue night. The 500 MB trough tamps down the ridging on Wed, and some cooler air will work in with high mainly in the 20s on Wed. Expect mountain clouds and mainly sunny skies S of the mtns. The next system approaches Thu and should impact the area Thu night into Friday. This wave is a little weaker, with not as cold air to the N than the Tuesday system, and should see the ridge, and the surge of warm air aloft to have a snow to mix to rain event in the srn areas. Of course this is day 6, so confidence is low attm. && .AVIATION /04Z SUNDAY THROUGH THURSDAY/... Short Term...VFR conditions expected at all terminals through this evening. Ceilings will begin to lower after midnight but should stay above MVFR levels until around 12Z. Chances for snow begin to ramp up between 06Z and 12Z, but at this time, the only places where confidence was high enough for me to put snow in the TAF was at HIE and LEB. Do think that MHT/CON/PSM/PWM have decent chances as well, but could also be FZDZ...and even if it does snow, it will likely be brief and very light or could just be flurries. Will let future TAF packages assess the possibility at those sites with additional data this evening. Long Term...Monday could start as mainly VFR, but should see MVFR cigs become predominant during the afternoon, with possible IFR vis in spotty -SN. Tuesday will likely be stuck in IFR or lower all day in mostly SN, although there is some potential for PL or FZRA at KMHT/KPSM/KPWM/KCON. Tue evening will start to see improvement with VFR returning by late Tue night. VFR is expected Wed-Thu. && .MARINE... Short Term...Seas will remain rather calm through the short term. Winds will become more northeasterly tonight as low pressure passes to the southeast of the waters, gusting to 15-20 kt at times. Winds then turn more northerly late Sunday into Sunday night but remain well below SCA criteria. Long Term...SCA will likely be needed late Mon night into Wed, and initially E flow develops ahead of coastal storm, then shifts to NW behind the storm Tue night and Wed. && .CLIMATE... We are in the midst of what is likely to be the longest continuous freeze of the season. While the most intense of the cold air is likely to remain well to our west, the sustained period of subfreezing temperatures is likely to be the longest observed in this region since the Great New Year's Cold Snap of 2017-2018. The first subfreezing day in our current stretch was on February 7 and is ongoing. Current forecasts project subfreezing temperatures will last deep into next week, likely approaching or exceeding 10 straight days at or below freezing. At Portland, a stretch of 7+ days at or below 32 has occurred 118 times in 80 years of records. This averages out to about 3 times every two years. The last stretch of 7+ days at 32 or colder occurred from December 15 thru 21, 2020. This stretch of subfreezing temperatures is likely to be the longest since the stretch of 15 days observed from December 25, 2017 thru January 8, 2018. The longest stretch of subfreezing days was 23 days and occurred twice, from January 25 thru February 16, 2007 and from December 8 thru December 30, 1989. Temperature records at Portland began in 1940. At Concord, a stretch of 7+ days at or below 32 has occurred 228 times in 133 years of records. This averages out to about 5 times every 3 years. The last stretch of 7+ days at 32 or colder occurred from January 28 thru February 3, 2019. This stretch of subfreezing temperatures is likely to be the longest since the stretch of 15 days observed from December 25, 2017 thru January 8, 2018. The longest stretch of subfreezing days was 37 days from December 22, 1976 thru January 27, 1977. Temperature records at Concord began in 1868. At Augusta, a stretch of 7+ days at or below 32 has occurred 173 times in 73 years of records. This averages out to more than twice per year. The last stretch of 7+ days at 32 or colder occurred from December 15 thru 21, 2020. This stretch of subfreezing temperatures is expected to be the longest since the stretch of 15 days observed from December 25, 2017 thru January 8, 2018. The longest stretch of subfreezing days was 33 days and occurred twice, from January 20 thru February 21, 2015 and from January 4 thru February 5, 1955. Temperature records at Augusta began in 1948. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...None. NH...None. MARINE...None. && NEAR TERM...Ekster/Watson SHORT TERM...Watson LONG TERM...Cempa
Hazardous weather outlook, Feb 13, 4:02 PM EST, 10 hours 28 minutes before
Hazardous Weather Outlook National Weather Service Gray ME 402 PM EST Sat Feb 13 2021 MEZ018>028-033-NHZ007>015-142115- Interior York-Central Interior Cumberland-Androscoggin-Kennebec- Interior Waldo-Coastal York-Coastal Cumberland-Sagadahoc-Lincoln- Knox-Coastal Waldo-Interior Cumberland Highlands-Sullivan-Merrimack- Belknap-Strafford-Cheshire-Eastern Hillsborough-Interior Rockingham- Coastal Rockingham-Western And Central Hillsborough- 402 PM EST Sat Feb 13 2021 This Hazardous Weather Outlook is for Maine, south central Maine, southwest Maine, western Maine, New Hampshire, central New Hampshire and southern New Hampshire. .DAY ONE...Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday. There is a chance for some spotty freezing drizzle Sunday morning, which could make roads slippery. A widespread snow event is expected beginning late Monday night and continuing through Tuesday. There will be some potential for sleet or freezing rain to mix in with snow along the coast. The potential exists for six or more inches of snow. Another weather system will impact the region to end the week with the potential for snow or a wintry mix. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MEZ007>009-012>014-NHZ001>006-142115- Northern Oxford-Northern Franklin-Central Somerset-Southern Oxford- Southern Franklin-Southern Somerset-Northern Coos-Southern Coos- Northern Grafton-Northern Carroll-Southern Grafton-Southern Carroll- 402 PM EST Sat Feb 13 2021 This Hazardous Weather Outlook is for south central Maine, west central Maine, western Maine and northern New Hampshire. .DAY ONE...Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday. A widespread snow event is expected beginning late Monday night and continuing through Tuesday. There will be some potential for sleet or freezing rain to mix in with snow along the coast. The potential exists for six or more inches of snow. Another weather system will impact the region to end the week with the potential for snow or a wintry mix. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ150>154-142115- Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM- Penobscot Bay- Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM- Casco Bay- Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM- 402 PM EST Sat Feb 13 2021 This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday. There is some potential for a few gale force wind gusts in the outer waters Tuesday and Tuesday night. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Nearby
Winter Storm Watches in New Hampshire, 2021Winter Storm Watches in Maine, 2021Every winter storm watch in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.