Alert archive / Maine / Frost Advisories in 2021
Frost Advisory 2, NWS Gray, ME
NWS Gray, ME issued this frost advisory at May 12, 2021, 3:30 AM EDT for 4 counties in New Hampshire; 5 counties in Maine. It took effect at May 13, 2021, 2:00 AM EDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- May 12, 2021, 3:30 AM EDT (07:30 UTC)
- In effect from
- May 13, 2021, 2:00 AM EDT
- Expired
- May 13, 2021, 7:30 AM EDT
- In force
- 6 hr
- Issued by
- NWS Gray, ME
Counties Androscoggin County, ME, Cumberland County, ME, Franklin County, ME, Oxford County, ME, York County, ME, Belknap County, NH, Carroll County, NH, Grafton County, NH, Sullivan County, NH
The radar
The Portland,ME radar (KGYX), 61 km from the middle of the area, began a volume at 07:30 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 60 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
- 22 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 2036 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
562 WWUS71 KGYX 120730 NPWGYX URGENT - WEATHER MESSAGE National Weather Service Gray ME 330 AM EDT Wed May 12 2021 MEZ012-NHZ003>005-007-122000- /O.NEW.KGYX.FR.Y.0002.210513T0600Z-210513T1200Z/ Southern Oxford-Northern Grafton-Northern Carroll- Southern Grafton-Sullivan- Including the cities of Bethel, Bryant Pond, Hanover, Locke Mills, Milton, Newry, Rumford, Norway, Fryeburg, Oxford, Bethlehem, Lincoln, Littleton, Sugar Hill, Thornton, Waterville Valley, Woodstock, Jackson, North Conway, Albany, Conway, Chatham, Crawford Notch, Lebanon, Lyme, Ashland, Ellsworth, Holderness, Plymouth, Rumney, Claremont, Cornish, Unity, Croydon, Goshen, Grantham, Lempster, Newport, and Charlestown 330 AM EDT Wed May 12 2021 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM EDT THURSDAY... * WHAT...Temperatures as low as 33 will result in areas of +frost formation. * WHERE...In New Hampshire, Northern Grafton, Northern Carroll, Southern Grafton and Sullivan Counties. In Maine, Southern Oxford County. * WHEN...From 2 AM to 8 AM EDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
4 follow-up statements
593 WWUS71 KGYX 122124 NPWGYX URGENT - WEATHER MESSAGE National Weather Service Gray ME 524 PM EDT Wed May 12 2021 MEZ033-NHZ006-130800- /O.EXA.KGYX.FR.Y.0002.210513T0600Z-210513T1200Z/ Interior Cumberland Highlands-Southern Carroll- Including the cities of Bridgton, Harrison, Naples, Wakefield, Bridgewater, Brookfield, Ossipee, Tuftonboro, Wolfeboro, and Moultonborough 524 PM EDT Wed May 12 2021 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM EDT THURSDAY... * WHAT...Temperatures in the middle 30s will result in frost formation. * WHERE...In New Hampshire, Southern Carroll County. In Maine, Interior Cumberland Highlands County. * WHEN...From 2 AM to 8 AM EDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MEZ012-NHZ003>005-007-130800- /O.CON.KGYX.FR.Y.0002.210513T0600Z-210513T1200Z/ Southern Oxford-Northern Grafton-Northern Carroll- Southern Grafton-Sullivan- Including the cities of Bethel, Bryant Pond, Hanover, Locke Mills, Milton, Newry, Rumford, Norway, Fryeburg, Oxford, Bethlehem, Lincoln, Littleton, Sugar Hill, Thornton, Waterville Valley, Woodstock, Jackson, North Conway, Albany, Conway, Chatham, Crawford Notch, Lebanon, Lyme, Ashland, Ellsworth, Holderness, Plymouth, Rumney, Claremont, Cornish, Unity, Croydon, Goshen, Grantham, Lempster, Newport, and Charlestown 524 PM EDT Wed May 12 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 AM EDT THURSDAY... * WHAT...Temperatures in the middle 30s will result in areas of frost formation. * WHERE...In New Hampshire, Northern Grafton, Northern Carroll, Southern Grafton and Sullivan Counties. In Maine, Southern Oxford County. * WHEN...From 2 AM to 8 AM EDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Tubbs
155 WWUS71 KGYX 122239 NPWGYX URGENT - WEATHER MESSAGE National Weather Service Gray ME 639 PM EDT Wed May 12 2021 MEZ013-018>020-NHZ009-130800- /O.EXA.KGYX.FR.Y.0002.210513T0600Z-210513T1200Z/ Southern Franklin-Interior York-Central Interior Cumberland- Androscoggin-Belknap- Including the cities of Farmington, New Sharon, New Vineyard, Temple, Wilton, Chesterville, Jay, Hollis, Alfred, Lebanon, Sanford, Goodwins Mills, Buxton, Limington, Berwick, New Gloucester, Gray, North Windham, Gorham, Greene, Lewiston, Sabattus, Wales, Minot, Turner, Auburn, Livermore Falls, Laconia, Gilford, and Meredith 639 PM EDT Wed May 12 2021 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM EDT THURSDAY... * WHAT...Temperatures as low as the mid 30s will result in frost formation. * WHERE...In New Hampshire, Belknap County. In Maine, Southern Franklin, Interior York, Central Interior Cumberland and Androscoggin Counties. * WHEN...From 2 AM to 8 AM EDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MEZ012-033-NHZ003>007-130800- /O.CON.KGYX.FR.Y.0002.210513T0600Z-210513T1200Z/ Southern Oxford-Interior Cumberland Highlands-Northern Grafton- Northern Carroll-Southern Grafton-Southern Carroll-Sullivan- Including the cities of Bethel, Bryant Pond, Hanover, Locke Mills, Milton, Newry, Rumford, Norway, Fryeburg, Oxford, Bridgton, Harrison, Naples, Bethlehem, Lincoln, Littleton, Sugar Hill, Thornton, Waterville Valley, Woodstock, Jackson, North Conway, Albany, Conway, Chatham, Crawford Notch, Lebanon, Lyme, Ashland, Ellsworth, Holderness, Plymouth, Rumney, Wakefield, Bridgewater, Brookfield, Ossipee, Tuftonboro, Wolfeboro, Moultonborough, Claremont, Cornish, Unity, Croydon, Goshen, Grantham, Lempster, Newport, and Charlestown 639 PM EDT Wed May 12 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 AM EDT THURSDAY... * WHAT...Temperatures as low as the mid 30s will result in frost formation. * WHERE...In New Hampshire, Northern Grafton, Southern Carroll, Sullivan, Northern Carroll and Southern Grafton Counties. In Maine, Southern Oxford and Interior Cumberland Highlands Counties. * WHEN...From 2 AM to 8 AM EDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
514 WWUS71 KGYX 130705 NPWGYX URGENT - WEATHER MESSAGE National Weather Service Gray ME 305 AM EDT Thu May 13 2021 NHZ007-009-130815- /O.CAN.KGYX.FR.Y.0002.000000T0000Z-210513T1200Z/ Sullivan-Belknap- Including the cities of Claremont, Cornish, Unity, Croydon, Goshen, Grantham, Lempster, Newport, Charlestown, Laconia, Gilford, and Meredith 305 AM EDT Thu May 13 2021 ...FROST ADVISORY IS CANCELLED... $$ MEZ012-013-018>020-033-NHZ003>006-131200- /O.CON.KGYX.FR.Y.0002.000000T0000Z-210513T1200Z/ Southern Oxford-Southern Franklin-Interior York- Central Interior Cumberland-Androscoggin- Interior Cumberland Highlands-Northern Grafton-Northern Carroll- 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, Hollis, Alfred, Lebanon, Sanford, Goodwins Mills, Buxton, Limington, Berwick, New Gloucester, Gray, North Windham, Gorham, Greene, Lewiston, Sabattus, Wales, Minot, Turner, Auburn, Livermore Falls, Bridgton, Harrison, Naples, Bethlehem, Lincoln, Littleton, Sugar Hill, Thornton, Waterville Valley, Woodstock, Jackson, North Conway, Albany, Conway, Chatham, Crawford Notch, Lyme, Ashland, Ellsworth, Holderness, Plymouth, Rumney, Wakefield, Bridgewater, Brookfield, Ossipee, Tuftonboro, Wolfeboro, and Moultonborough 305 AM EDT Thu May 13 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...In New Hampshire, Northern Grafton, Southern Carroll, Northern Carroll and Southern Grafton Counties. In Maine, Southern Franklin, Southern Oxford, Central Interior Cumberland, Interior York, Androscoggin and Interior Cumberland Highlands Counties. * WHEN...Until 8 AM EDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
263 WWUS71 KGYX 131130 NPWGYX URGENT - WEATHER MESSAGE National Weather Service Gray ME 730 AM EDT Thu May 13 2021 MEZ012-013-018>020-033-NHZ003>006-131230- /O.CAN.KGYX.FR.Y.0002.000000T0000Z-210513T1200Z/ Southern Oxford-Southern Franklin-Interior York- Central Interior Cumberland-Androscoggin- Interior Cumberland Highlands-Northern Grafton-Northern Carroll- Southern Grafton-Southern Carroll- Including the cities of Bethel, Bryant Pond, Hanover, Locke Mills, Milton, Newry, Rumford, Norway, Fryeburg, Oxford, Farmington, New Sharon, New Vineyard, Temple, Wilton, Chesterville, Jay, Hollis, Alfred, Lebanon, Sanford, Goodwins Mills, Buxton, Limington, Berwick, New Gloucester, Gray, North Windham, Gorham, Greene, Lewiston, Sabattus, Wales, Minot, Turner, Auburn, Livermore Falls, Bridgton, Harrison, Naples, Bethlehem, Lincoln, Littleton, Sugar Hill, Thornton, Waterville Valley, Woodstock, Jackson, North Conway, Albany, Conway, Chatham, Crawford Notch, Lyme, Ashland, Ellsworth, Holderness, Plymouth, Rumney, Wakefield, Bridgewater, Brookfield, Ossipee, Tuftonboro, Wolfeboro, and Moultonborough 730 AM EDT Thu May 13 2021 ...FROST ADVISORY IS BEING ALLOWED TO EXPIRE... $$
The office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 3:44 PM EDT | Special Weather Statement | GYX | Sagadahoc | 46 min |
Nearby
Frost Advisories in Maine, 2021Frost Advisories in New Hampshire, 2021Every frost advisory 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.